PZC Packet 110315Town of Avon Planning & Zoning Commission
Avon
COLORADO
Meetings are Open to the Public -
I. Call to Order - 5:00pm
II. Roll Call
III. Additions & Amendments to the Agenda
IV. Conflicts of Interest
Meeting Agenda
Tuesday, November 3, 2015
Avon Municipal Building - One Lake Street
V. Consent Agenda
• Case #SRU15003 - Findings of Fact and Record of Decision - Lots z & 3, Block 1, Benchmark at
Beaver Creek Subdivision. Propane Fuel Station. 10.20.2015 PZC
• October 20, 2015 Meeting Minutes
VI. Public Hearing: Case #MNR15o29/AEC15003
Land Use Application Type: Minor Development Plan & Alternative Equivalent Compliance
Property Location: N/A
Property Address: N/A
Zoning: Open Space, Landscaping, and Drainage (OLD)
Applicant: Town of Avon
Owner: Town of Avon, Eaglebend Affordable Housing Corporation
Description: Review of proposed retaining wall finish materials for Phase III, Eagle Valley Trail.
Walls are proposed to be constructed up to 14' tall with "Redi-Rock" block wall system. Alternative
Equivalent Compliance is requested for the project.
VII. Staff Approvals
• Monument sign for Avon Public Library. Tract G, Block 1, Benchmark at Beaver Creek
Subdivision. zoo Benchmark Road (Sign located on Town of Avon property).
• Exterior house modification to install new doorway in lieu of window to garden level floor
area. 2475 Old Trail, Unit B.
• Brookside Lofts exterior stucco color change in two wall sections. 37347 Hwy. 6.
• Exterior house modification to enclose existing deck with expanded kitchen area. 3o16
Wildridge Rd., Unit 6
• Solar panel rooftop array installation. 4201 W. Wildridge Rd.
• Sprint Antennae modification and upgrade. Avon Center at Beaver Creek. loo W. Beaver
Creek Blvd.
Agenda posted on October 30, 2015 at the following public places within the Town of Avon:
-Avon Municipal Building, Avon Recreation Center, Avon Public Library, Town of Avon Website www.avon.org
Please call 970-748-4030 for Questions
• Demolition of existing wood fence and rebuild at Falcon Point Resort. 175 Lake Street.
• Various exterior improvements to residence including new paint, front porch at 5129
Longsun Lane.
• Repaint of ridgeline condos at 3oo8 Wildridge Road.
• New split -rail fence for residences at June Creek Corner, units A, B, C, D. 2900 June Creek
Corner.
• New trash enclosure at Eaglebend Affordable Housing Corp. 386og Hwy. 6
VIII. Other Business
IX. Adjourn
Z 1 Agenda posted on October 30, 2015 at the following public places within the Town of Avon:
-Avon Municipal Building, Avon Recreation Center, Avon Public Library, Town of Avon Website www.avon.org
Please call 970-748-4030 for Questions
A
Avon
COLORADO
RESOLUTION 15-20
AVON PLANNING AND ZONING COMMISSION
FINDINGS OF FACT AND RECORD OF DECISION
CONCERNING THE SPECIAL REVIEW USE
FOR WILCON ENERGY PROPANE FUEL STATION AT LOTS 2 & 3, BLOCK i, BENCHMARK AT
BEAVER CREEK SUBDIVISION, TOWN OF AVON, STATE OF COLORADO
The following findings of fact and record of decision are made in accordance with the Avon
Development Code ("Development Code") §7.16.loo pertaining to land use case #SRU15002,
a public hearing held October 20, 2015:
Case #SRU15003
Land Use Application Type: Special Use Review
Property Location: Lots 2 & 3, Block 1, Benchmark at Beaver Creek Subdivision
Property Address: 111 Nottingham Road
Zoning: Neighborhood Commercial
Applicant: Matt Morrison, Wilcon Energy
Owner: G.P.I. Partners, P.O. Box 99, Vail, CO 81658
Description: The Applicant is requesting approval of a Special Review Use for a propane fuel
station on the property.
• Action: Commissioner Minervini moved to approve Case #SRU15003 together
with the three (3) conditions as cited in the staff report and five (5) additional
conditions in addition to the findings of fact as cited in the staff report with
one (1) change to the second finding of fact.
Conditions:
1. Prior to beginning any construction, the Applicant's contractor shall contact all
appropriate utility companies for line locations, and contractor shall then locate all
utilities (including depth) The Applicant shall submit the locate information with the
building permit application.
2. The Applicant shall restore any landscaping to pre-existing conditions if disturbed.
3. The Applicant shall restore any aspect of the property altered or damaged by the
facilities or use on Lots 2 & 3 upon removal of any equipment to conditions pre-
existing the installation to the satisfaction of the Town and the property owner. The
Applicant shall photo -document conditions before equipment installation and confer
with Town staff prior to the removal of any installed equipment to agree on the
restoration plan.
FINDINGS OF FACT AND PZC ACTION
Page 1 of 2
4. The Special Review Use permit is approved for duration not to exceed two (2) years
and the Applicant shall report back to the PZC in one (1) year to provide an update.
5. Fuel delivery trucks shall be restricted to twenty-five (25) foot maximum length with
not more than two (2) axles.
6. The Applicant shall install motion -activated bollard lights that meet the lighting
standards of the Avon Municipal Code to provide a minimum level of safe lighting for
fuel customers.
7. No on-site payment option shall be made available to fuel dispenser customers.
8. The Applicant shall submit for review and approval by the Town Engineer an auto -
turn analysis to demonstrate the parking lot can reasonably and safely accommodate
a 25400t fuel delivery truck.
Findings of Fact:
1. The Application was reviewed in accordance with Sec. 7.16.1oo Special Review Use
and determined to be eligible for consideration with the applicable review
criteria.
2. The proposed use confers a benefit to the greater community by providing a
commercially accessible source of alternative fuel that is better for the
environment.
3. The proposed use is compatible with adjacent uses in terms of scale, size and
scope and any possible impacts will be minimal and mitigated by constant
monitoring and safety inspections, as agreed by the applicant.
PLANNING AND ZONING COMMISSION RECORD OF DECISION FOR CASE #SRU15003:
The PZC APPROVED the Special Review Use Application with conditions.
THESE FINDINGS OF FACT AND RECORD OF DECISION ARE HEREBY APPROVED:
BY:
DATE:
Jim Clancy, PZC Chairperson
FINDINGS OF FACT AND PZC ACTION
Page 2 of 2
Avon
COLORADO
The meeting was called to order at 5:001?m
11. Roll Call
Town of Avon Planning & Zoning Commission
Meeting Minutes
Tuesday, October2O, 2015
Avon Municipal Building - One Lake Street
• All Commissioners were present with the exception of Commissioner Bonidy.
111. Additions & Amendments to the Agenda
• None
IV. Conflicts of Interest
Commissioner Barnes and Commissioner Lubbers Employment Relationship Disclosure
(Town Attorney Memorandums Included)
Commissioner Barnes and Commissioner Lubbers conflicted out of the review of proposed
finish materials for Eagle Valley Trail segment discussion.
V. Consent Agenda
• Findings of Fact and Record of Decision - Tract H, Filing 3, Village at Avon Rock Crushing SRU
• September z9, 2015 Meeting Minutes
Action: Commissioner Struve moved to approve the consent agenda. The motion was
seconded by Commissioner Minervini and at vote, all were in favor (5-0) with Commissioner
Barnes abstaining.
VI. Public Hearing: Case #SRU15oo3
Land Use Application Type: Special Review Use
Property Location: Lots z & 3, Block 1, Benchmark at Beaver Creek
Property Address: 111 Nottingham Road
Zoning: Neighborhood Commercial (NC)
Applicant: Matt Morrison, Wilcon Energy
Owner: G.P.I. Partners, PO Box 99, Vail, CO 81658
Description: The applicant is requesting approval of a Special Use Review for a propane fuel station
on the property.
Action: Commissioner Minervini moved to approve Case #SRU15003 together with the three (3)
conditions as cited in the staff report and five (5) additional conditions in addition to the findings of
fact as cited in the staff report with one (1) change to the second finding of fact:
Conditions:
1. Prior to beginning any construction, the Applicant's contractor shall contact all appropriate
utility companies for line locations, and contractor shall then locate all utilities (including depth)
The Applicant shall submit the locate information with the building permit application.
2. The Applicant shall restore any landscaping to pre-existing conditions if disturbed.
3. The Applicant shall restore any aspect of the property altered or damaged by the facilities or use
on Lots z & 3 upon removal of any equipment to conditions pre-existing the installation to the
satisfaction of the Town and the property owner. The Applicant shall photo -document
conditions before equipment installation and confer with Town staff prior to the removal of any
installed equipment to agree on the restoration plan.
4. The Special Review Use permit is approved for duration not to exceed two (2) years and the
Applicant shall report back to the PZC in one (1) year to provide an update.
5. Fuel delivery trucks shall be restricted to twenty-five (25) foot maximum length with not more
than two (z) axles.
6. The Applicant shall install motion -activated bollard lights that meet the lighting standards of the
Avon Municipal Code to provide a minimum level of safe lighting for fuel customers.
7. No on-site payment option shall be made available to fuel dispenser customers.
8. The Applicant shall submit for review and approval by the Town Engineer an auto -turn analysis
to demonstrate the parking lot can reasonably and safely accommodate a z5 -foot fuel delivery
truck.
Findings:
1. The Application was reviewed in accordance with Sec. 7.16.1oo Special Review Use and
determined to be eligible for consideration with the applicable review criteria.
z. The proposed use has a negligible impact to adjacent or on site uses and confers a benefit to
the greater community by providing a commercially accessible source of alternative fuel that is
better for the environment.
3. The proposed use is compatible with adjacent uses in terms of scale, size and scope and any
possible impacts will be minimal and mitigated by constant monitoring and safety inspections,
as agreed by the applicant.
The motion was seconded by Commissioner Struve and at vote, all were in favor (6-o) and the motion
passed.
VII. Other Business
• Review of Proposed Finish Materials for Eagle Valley Trail Segment (Town Engineer Justin
Hildreth)
• Comprehensive Plan Update
• Council Nov 1ot": Town Hall, Tract G Planning, Joint Public Safety, Lot 5, Swift Gulch
• November 17 PZC Meeting / Town Council Meeting Room conflict
• Council action on Lot 21, Block 3, Wildridge PUD Amendment
• Wildridge PUD Amendment Code Amendment
VIII. The meeting was adjourned at 7:15pm.
A
Staff Report: Avo n
coo A�vo
November 3, 2015 Planning & Zoning Commission Meeting
Project type Minor Development Plan Case #MNR15029
Alternative Equivalent Compliance Case #AEC15003
Public Hearing Yes
Legal Description N/A
Zoning Town of Avon Right -of -Way
Address N/A
Prepared By Brian Garner, Town Planner
The Planning and Zoning Commission (PZC) is requested to review and take action on a Minor
Development Plan Application with a request for Alternative Equivalent Compliance for
retaining wall design associated with Phase 3 of the Eagle Valley Trail, scheduled for
construction in 2016. The proposed retaining wall design will be constructed at various locations
between the Eagle River and Hwy 6 in the Town of Avon. Details of the design are attached as
Exhibit A to this Staff Report. This Staff Report summarizes the design review criteria and
retaining wall design considerations.
Summary
Phase 3 of the Eagle Valley trail runs from Beaver Creek to Stonebridge Drive and is the last
segment of the trail in Avon to be completed. It has not been completed because it is the most
difficult and expensive as a result of the large amount of retaining walls required. The project
budget is $2.75M, and is funded by Colorado Department of Transportation, (CDOT), ECO
Trails, and the Town of Avon. Phase 1 and 2 were constructed last year and extends from Hurd
Lane to Beaver Creek and includes bridges over the Eagle River and Beaver Creek.
There will be four walls and they are up to 14 FT tall, 1,316 FT long, and 13,733 SF as depicted
on the attached plan and profile sheets. The walls will be constructed of large Redi-Rock blocks
with the Ledgestone face and treated as shown on the attached cut sheet. The walls were
designed by an Engineer specializing in retaining walls and have been approved by CDOT's
structural division. The Ledgestone face and color were selected because the color blends with
the local environment and the treatment matches the local rugged topography. The design has
been vigorously reviewed to minimize the quantity, particularly because of their large cost. The
requirement of the walls was dictated by the steep terrain, US6, wetland and riparian vegetation,
and the Eagle River.
They will be located on property owned by the Town of Avon, Eaglebend Affordable Housing
Corp and the Highway 6 right-of-way. An easement was obtained last year from Eaglebend to
allow the construction of the wall and trail. CDOT will issue a Special Use permit to allow for
the construction of the trail when a contractor has been selected.
1 1 MNR15029 & AEC15003 Eagle Valley Trail Retaining Wall Design
Avon Development Code Requirements
7.28.0 70 Retaining Walls
(a) Purpose. The general intent of the retaining wall standards are to reduce the necessity for
excessive grading and encourage stepping of driveways and buildings with the natural grade.
(b) Standards
(1) Retaining walls may be utilized only where finished grades cannot meet the recommended
standards of this Development Code due to naturally occurring topography and other site
development constraints.
(2) Retaining walls over four (4) feet in height shall be designed with a series of retaining walls
with landscaped terraced steps. The width of the terrace between any two (2) four (4) foot
vertical retaining walls shall be at least three (3) feet. Retaining walls higher than four (4) feet
shall be separated from any other retaining walls by a minimum of five (S) horizontal feet.
Terraces created between retaining walls shall be permanently landscaped.
(3) A retaining wall shall not exceed seven (7) feet in height unless approved by the PZC and it is
demonstrated that no alternative site layout is functional.
(4) The design of retaining walls shall be constructed of materials compatible with the site and
materials of the structures on the site. Retaining walls and cribbing should utilize natural
materials such as boulders, cut rocks, stone -veneer, or textured, color tinted concrete. Timbers
and railroad ties are prohibited as retaining wall materials. Where two (2) alternatively
designed retaining walls meet, a cohesive transition between walls must be demonstrated.
(5) Walls over four (4) feet in height or any wall supporting a vehicle load or structure, shall be
structurally designed and certified by a Colorado licensed professional engineer.
Review Criteria
The PZC shall use the Development Plan and Design Review criteria as the basis for a decision
on the Application. Staff has provided a response to the review criteria below:
§7.16.080(f), Development Plan Criteria
(1) Evidence of substantial compliance with the purpose of the Development Code as
specified in §7.04.030, Purposes;
• Staff Response: The Application is in substantial compliance with the Purpose of the
Development Code. Completion of this segment of the Eagle Valley Trail is a critical
pedestrian and bicycle connection for the community and region. According to §. 7.04.030(d),
Development Code Purpose, Avon Municipal Code, states that the Development Code is
intended to 'promote effective and economical mass transportation and enhance effective,
attractive and economical pedestrian opportunities. "
(2) Evidence of substantial compliance with §7.16.090, Design Review.
2 MNR15029 & AEC15003 Eagle Valley Trail Retaining Wall Design
Staff Response: The Application is in compliance with the criteria for Design Review, as
demonstrated in §7.16.090, Design Review below.
(3) Consistency with the Avon Comprehensive Plan;
Staff Response: The Avon Comprehensive Plan (2006) includes several policies for Parks,
Recreation, Trails and Open Space. This Application is consistent with policies pertaining to
trails such as: "Integrate the town's recreational trail system with the regional trial system
(Eco Trails, U.S. Forest Service and BLM). "
(4) Consistency with any previously approved and not revoked subdivision plat,
planned development, or any other precedent plan or land use approval for the property as
applicable;
Staff Response: The Town of Avon Engineering Division has obtained the necessary
construction easements and rights-of-way to complete the project in 2016 The design of the
retaining walls proposed at this time do not conflict with any other precedent plan within the
trail corridor right-of-way.
(5) Compliance with all applicable development and design standards set forth in this
Code, including but not limited to the provisions in Chapter 7.20, Zone Districts and Official
Zoning Map, Chapter 7.24, Use Regulations, and Chapter 7.28, Development Standards; and
Staff Response: The retaining walls do not meet the retaining wall standards outlined in
§7.28.070 as the maximum wall height proposed is fourteen feet (14'). Concurrent with this
Application is a request for Alternative Equivalent Compliance. The Application is compliant
with all other regulations.
(6) That the development can be adequately served by city services including but not
limited to roads, water, wastewater, fire protection, and emergency medical services.
•
Staff Response: This criterion is not applicable as the retaining walls do not require city
services.
§7.16.090(f), Design Review Criteria
(1) The design relates the development to the character of the surrounding community;
or, where redevelopment is anticipated, relates the development to the character of Avon as a
whole;
Staff Response: The architectural style of the retaining wall finish material was chosen to
help blend the walls into the surrounding environment and appear as natural as possible.
(2) The design meets the development and design standards established in this
Development Code; and
StaffResponse: The design meets the applicable development and design standards as herein
described and the design reflects the goals of the Comprehensive Plan, including: "Provide
an exceptional system of parks, trails, and recreational programs to serve the year-round
leisure needs of area residents and visitors. "
31
MNR15029 & AEC15003 Eagle Valley Trail Retaining Wall Design
(3) The design reflects the long range goals and design criteria from the Avon
Comprehensive Plan and other applicable, adopted plan documents.
•
Staff Response: The design elements of the proposed retaining walls elevate several long-
range goals and design criteria form the Avon Comprehensive Plan. The improvements
continue to define Avon as a destination resort with higher quality design elements. The
design directly implements policies from the Avon Comprehensive Plan, including Policy
D. 1.4 — Create a unified and cohesive physical framework and community image by ensuring
compatible.... streetscape furnishings, signage, lighting, etc.
AEC15003 Request for Alternative Equivalent Compliance (AEC)
The proposed retaining walls do not meet the development standards of Section 7.28.070 of the
Development Code as shown below. Following each standard is a staff response indicating
where AEC is requested.
Purpose. The general intent of the retaining wall standards are to reduce the necessity for
excessive grading and encourage stepping of driveways and buildings with the natural grade.
(b) Standards.
(1) Retaining walls may be utilized only where finished grades cannot meet the recommended
standards of this Development Code due to naturally occurring topography and other site
development constraints.
Staff Response: Retaining walls are necessitated by the steep topography to accommodate the
Eagle Valley Trail.
(2) Retaining walls over four (4) feet in height shall be designed with a series of retaining walls
with landscaped terraced steps. The width of the terrace between any two (2) four -foot vertical
retaining walls shall be at least three (3) feet. Retaining walls higher than four (4) feet shall be
separated from any other retaining walls by a minimum of five (5) horizontal feet. Terraces
created between retaining walls shall be permanently landscaped.
Staff Response: AEC requested for this standard. The retaining walls are engineered to
accommodate the Eagle Valley Trail within a limited right-of-way that contains steep
topography. Additional constraints include the Eagle River to the north and the Hwy. 6 corridor
to the south. Due to the narrow project configuration extending through a natural, riparian
environment, the retaining walls cannot be terraced and will not be landscaped. The intent is to
retain as much naturally occurring vegetation with as little overall disturbance as possible.
(3) A retaining wall shall not exceed seven (7) feet in height unless approved by the PZC and it
is demonstrated that no alternative site layout is functional.
Staff Response: AEC requested for this standard. As previously described, the project seeks to
disturb as little of the natural environment as possible and to that end, additional retaining walls
would only encroach into more of the natural area.
(4) The design of retaining walls shall be constructed of materials compatible with the site and
materials of the structures on the site. Retaining walls and cribbing should utilize natural
41
MNR15029 & AEC15003 Eagle Valley Trail Retaining Wall Design
materials, such as boulders, cut rocks, stone -veneer or textured, color -tinted concrete. Timbers
and railroad ties are prohibited as retaining wall materials. Where two (2) alternatively designed
retaining walls meet, a cohesive transition between walls must be demonstrated.
Staff Response: The retaining walls are proposed to utilize highly textured stone -veneer that
resembles naturally occurring rock indigenous to the area. Retaining wall sections are cohesive
and not mutually exclusive in design.
(5) Walls over four (4) feet in height or any wall supporting a vehicle load or structure shall be
structurally designed and certified by a Colorado licensed professional engineer.
Staff Response: The proposed retaining walls are structurally designed and certified by a
Colorado -licensed professional engineer.
AEC Review Criteria
The PZC shall use the following review criteria as the basis for recommendations on the
Application:
§7.16.120(d), Alternative Equivalent Compliance
(1) The proposed alternative achieves the intent of the subject design or development
standard to the same or better degree than the subject standard;
(i) The proposed alternative achieves the goals and policies of the Avon
Comprehensive Plan to the same or better degree than the subject standard;
(3) The proposed alternative results in benefits to the community that are equivalent to
or better than compliance with the subject standard; and
(4) The proposed alternative imposes no greater impacts on adjacent properties than
would occur through compliance with the specific requirements of this ordinance.
Staff Recommendation
Staff recommends approval of the Applications contained in Land Use Cases MNR15029 and
AEC15003 for the Eagle Valley Trail retaining walls located on Town of Avon right-of-way,
with the following findings:
Findings:
1) The proposed retaining wall design was reviewed pursuant to §7.16.080(6, Development
Plan, and 7.16.0900, Design Review, Avon Municipal Code, and
2) The proposed retaining walls exceed the maximum height allowed by §7.28.070 of the
Development Code by having an engineered maximum height of fourteen (14) feet.
3) The AEC application was reviewed pursuant to §7.16.120(d), Alternative Equivalent
Compliance, and was determined to be compliant with the review criteria.
4) The proposed alternative imposes no greater impacts on adjacent properties than would
occur through compliance with the specific requirements of the retaining wall standards.
5) The proposed alternative achieves the intent of the subject design or development
standard to the same or better degree than the subject standard as it will minimize
disturbance to the land and natural vegetation of the Eagle River riparian corridor.
51
MNR15029 & AEC15003 Eagle Valley Trail Retaining Wall Design
Recommended Motion:
I move to approve Case #MNR15029, a Minor Development Plan Application and Case
#AEC15003, an Application for Alternative Equivalent Compliance, for a retaining wall design
for the Eagle Valley Trail segment within the Town of Avon, together with the findings of fact.
Attachments
Application Materials, photos
61 MNR15029 & AEC15003 Eagle Valley Trail Retaining Wall Design
ONTRACTOR TO PROVIDE
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No Revisions: WALL PLAN VIEW STE C440-008
Revised: Designer: LAT Structure SA 18628
Detailer: Numbers
Void: Sheet Number RW -1
Sheet Subset: Subset Sheets:
U9. Fr03FMIAY 6
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BEAVER CREEK TO STONEBRIDGE DR
No Revisions: WALL PLAN VIEW STE C440-008
Revised: Designer: LAT Structure SA 18628
Detailer: Numbers
Void: Sheet Number RW -1
Sheet Subset: Subset Sheets:
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IC BLOCKS
HTC FST PST FS1
FST FST FST FST I FST FST FST I FST FST FST FST FST FST FST FST FST FST
FST FST 1-61 Fbr-
HTC FST EST P&T FST FST FSM 41M 111 41M 41M 41M 41M 41M 41 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41 41M 41M 41M 41M 41M
41M 41M 41M 41M
FSM 1 41 41M I 41M I 41M I 41M 1 411 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41
1M 41M 41M I 41PA I 41M I 41M I 41M I 41M 41M 41M I 41M I 41M I 41M I 41M I 41M 41M 41
41M I 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41 41M 41M 41M 41M 41M
41M 41M 41M 41M
41M 4114 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M I 41M I 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41
1M 41M 41M 41 PA 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41
41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41 41M 41M 41M 41M 4_1M_
_41_M__41M ItM 41M
41M 4114 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M I 41M I 41M 41M 41M 41M _4jM- 41M-491vt- 4719 41M 41M 41B 41B 41B 41B 41B 41B 41B
41B 41B 41B 41
IM 41M 4jjvL 41 -4W --44M- -4tM 41-Wr41PA -60K- 60M 60M 60N1 X0101 -60M1- 509 -6W--6-0M-
60M 60110 60M 60M I 60M 60B 60B 60B 60B 60B
60M 60 4 60B 606 I 60B I 60B I 606 I 60B 60B 60B 60B 60B 606 I 606 I 60B I 606 I 60B 60B 60B 60B 60B 60B 7437.22
OB I 606
7435.72
1:1 OR FLATTER
W
7434.22
7434.22
Z
74303.5'
7430'
? 1-150 LEVELING PAD 2+00 13.5-2 50
F
U
F
41
EXISTING GROUND BOTTOM OF EXPOSED IC BLOCKS
TOP OF WALL
FST ST T HTC
(FRONT FACE OF BLOCK)
41M 41M 41 41M 41 Ml 41M 41M 41M FSM FST FST FST FSTFST-
PST PST __5ST PQT PQT FSTEST P-qT FRT FqT FRT FRT
41 41M 1M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M
41M 41M FSM FS
41M 41M 41M 41M 494 41M 41M 41M 41M 41M 41M 41M 41M I 41M I 41M I 41M I 41M
491 41M 41M 41M 41M 41M 41M 41M 41M 41M I 41M 41M 41M 491
41M 41M 41M FSM
F C
41M 1M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M
41M 41M 41M 41M 41M FSM HTC
41M 41M 41M 41 41M 41M 41M 41M 41M 41M 41M 41M 41 41M 41M 41M
41 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41
41M 41M 41M 41M
41M 41M FS TC
7440
41B 41M 41M a1f01 �1Tvr 411v1 FHM--4�1vt 41�d 41WL 41M _41_M_ 41M 41M 41M 41M 41M 41M 41M 41M 41_M _4�[vL 41ia -4+vi- -41Wr -4fM 41M 41M 41B
IN
41B 41B 41B 41B 41B 41B 41B BC
60B 60 60B 60B 60B 60B 41B 41B 41B 41B 41B 41B 41B 41B
41 41B 4113 41B 41B 41B 41B 41B 41B 41B 41B 41B
'%"11:1
FLATTER
0
7437.22 7435.72
7435.72
W
Z 2.7
1 Q
9.3�
J �
LEVELING PAD
430 I
3+00
3-50 4+00
Q
NOTE: SEE DETAIL(;_, FOR BLOCK LEGEND
Colorado Department of Transportation
Computer File Information
Sheet Revisions
As Constructed
EAGLE VALLEY TRAIL
Project No./Code
Creation Date: 01/16/15 Initials: LAT
1
O
BEAVER CREEK TO STONEBRIDGE
DR
No Revisions:
STE C440-008
)pj 714 Grand Avenue Box 298
W. �`
DETAIL WALL PROFILE #2
Last Modification Date: 01/23/15 Initials: LAT
2
Full Path: P:\EC011001\DWG\MASTER\PHASEIA
3
Revised:
Designer: LAT Structur
SA 18628
Eagle, Colorado 81631 w Associat nc..t
Phone: 970-328-6385
O
2 Invemcss Dr. E
suite 106
DrawingFile Name: Walls- Phase 1a.dw
4
Detailer: Numbers
REGION 3 Englewood, co 80112
�
Void:
Sheet Number RW -2
Acad Ver. 2010 Units: English
5
Sheet Subset: Subset Sheets:
WALL #3
IC BLOCKS
41 M 41 K
41M
41M 3]n
416
7462.97
w
z
J
I
F
Q
PROFILE SCALE:
HORIZ: 1 " = 10'
VERT: 1 " = 10'
IC BLOCKS
TOP OF WALL
(FRONT FACE OF BLOCK)
IC BLOCKS
PAD ELEVATION - TYP.)
TOP OF WALL
(FRONT FACE OF BLOCK)
41M I 41M I 41M I 41M I 41M I 41M I 41M I 41M I FSM I FS
vl 1 41M 41M 41M 41M 41M W 4tM FSM
-41M— --41M— -W1M 41M 41B 41 B 41B 41B 41B I 41B I 41B
3 41B 41B 41B
1:1 OR FLATTER 7464.47
7462.97 3.1'
6.3
1-H50
1+71.73
NOTE: SEE DETAIL RW_, FOR BLOCK LEGEND
Colorado Department of Transportation
)7 714 Grand Avenue Box 298Lost
®� Eagle, Colorado 81631 w Associat s; nest at
®� Phone: 970-328-6385
���n1fHr TMNSPON ON 2 Suite 106 s Dr. E.
sae ios
REGION 3 Englewood, CO 80112
HTC F
O
O
O
O
O
FST I FST I FST
I FST I
FSM I 41M I 41M I 41M I 41M I 41M I 41M
I 41M I 41M 1 41h
41M 41M
41M 41M 41M 41M 41M 41M 41M
41M 41M
41M 41M 41M 41M 41M 41M
41M 41M 41M
HTC F FST FSM 41M
Revised:
HTC FSM 41M 41M 41M 41M 41
41M
41M 41M 41M 41M 41M 41M 41M 41M
41M
41M 41M 41 VI 41M 41M 41M 41M
41M 41M �t
HTC
FSM I 41M I 41M I 41M I 41M 41M 41M 41M
Al Al
�1 M— -41M— --41 [Vr-- -41 1 --11-M
1#k
1101 41101 4M 41M 4a M 4W
41 B 41 B
HTC FSM 1
41M 41M 41101 t 41M 41M 41M 41M 41B 41B
41B
41B 41B 41B 41B 41B 41B 41B 41B
41B
41B 41B 41 B 41B 41B 41B 41B
C _ SAA- tirfi 41 M
1 41 B 1 41 B 1 41 B 1 41 B 1 41 B 41B
ZA111111IZZZZZZZ1111
7462.97
BC 41B 1 41B I 41B
7461.47
7461.47
1:1 OR FL
7459.97
TTER
3.2'
EXISTING GROUND
9.3
J
i
BOTTOM OF EXPOSED WALL
1+00
I
7458.47
7.8 0
50
PRIOR TO CONSTRUCTION
U
(TOP OF LEVELING
LEVELING PAD
F
PAD ELEVATION - TYP.)
TOP OF WALL
(FRONT FACE OF BLOCK)
41M I 41M I 41M I 41M I 41M I 41M I 41M I 41M I FSM I FS
vl 1 41M 41M 41M 41M 41M W 4tM FSM
-41M— --41M— -W1M 41M 41B 41 B 41B 41B 41B I 41B I 41B
3 41B 41B 41B
1:1 OR FLATTER 7464.47
7462.97 3.1'
6.3
1-H50
1+71.73
NOTE: SEE DETAIL RW_, FOR BLOCK LEGEND
Colorado Department of Transportation
)7 714 Grand Avenue Box 298Lost
®� Eagle, Colorado 81631 w Associat s; nest at
®� Phone: 970-328-6385
���n1fHr TMNSPON ON 2 Suite 106 s Dr. E.
sae ios
REGION 3 Englewood, CO 80112
Computer File Information
O
O
O
O
O
Sheet Revisions
As Constructed
EAGLE VALLEY TRAIL Project No./Code
BEAVER CREEK TO STONEBRIDGE DR
DETAIL WALL PROFILE #3 STE C440-008
Creation Date: 01/16/15 Initials: LAT
1
No Revisions:
Modification Date: 01/23/15 Initials: LAT
2
Full Path: P:\EC011001\DWG\MASTER\PHASE1A
3
Revised:
Designer: LAT Structur SA 8628
Detailer. Numbers
Sheet Subset: Subset Sheets: Sheet Number RW -3
DrawingFile Name: Walls- Phase 1 a.dw
4
Void:
Acad Ver. 2010 Scale: 1 "=30' Units: English
5
WALL #4 PROFILE SCALE:
H O R I Z: 1 �� - 1
EXISTING GROUND
OF EXPOSED LL
C BLOCKSVERT: 1 �� = 1 nTO
PRIOR CONSTRUCTION IC BLOCKS TOP OF WALL
44TG FST F&T FST-1 FST FST FST F FST HTC (FRONT FACE OF BLOCK)
41B 41B 41B 41M �f 41M 41M 41M 41M 41M 41M 41M 41 41M 41M FST FST F FST HTC
7
41B 41B I 411"A-1,41M M F61 HS F51 NIL;
747042 416 41M 11N 41M 41M 41M 41M 4 M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M FST HTC
7468.92
(TOP OF LEVELING 416 41M I 4TM 41M 41M 41M 4'M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M FST FST
PAD ELEVATION - TYP.) 7467.42 41B 41M 41M 4tfvl 44M 44-M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M I 41M I 41M I 41M I 41M 41M 41M 41
7465.92 41B 41B 41B 4'B 41B 41B 41B 416 I 416 I 41M I 41M 41R —41Ah -A1JNL 41M 41M 41M 41
41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 11V!
7464.42416 416 1�
41B 41B 41M 4f f 1M 41M
41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41
7460
7462.92 41B 41B 4 B 4
1:1 OR FLATTER
416 41 M 4�1�1 -44-44 41M 41M 1 M
7461.42
60B 41B 41B 41B 41B 41B 41M 41 U- -41 41
416 416 1B
0+00
10.8 0 50 LEVELING PAD 3.0' 7459.92 1+00
o n
7458.42
See Details
7456'92
4A 4B
10.8—LEVELING PAD
RW-6 RW£ N Z
745
Z
TOP OF WALL
FST FST HTC (FRONT FACE OF BLOCK)
41M 41M 41M 41M 41M 41 M FST FST HTC IC BLOCKS
41M 11VI 41M I 41M I 41M I 41M I 41M 41M 41M 41M 41M 41M 41M FST FST HTC
41M 41M 41M I 41M 41M I 41M I 41M I 41M I 41M I 41M I 41M I 41M 41M 41M 41M 41M 41M I 41M 41M FST FST FST FST HTC
�M41M
41M 1M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M FST FST FST F 11 PST 59T-
-41 41M 41M 41M 41M 41M 41 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 4 M 41M
416 1B 41 Nr la 41M 41M I 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M I 41M I 41M I 41M 41M 41M 41M I 41M I 41M I 41M I 41M I 41M 41M 41M 41M 41M 41M 41M 41M I 41M I 41M I 41M 41M 41M
60B 60B 60B 60B 416`416 41B 41B 41M -44 41M 41M 41M 41M 41M 41M 41M 41 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 4 M 41M
606 606 416 41M 41M -4W-4 M- fivY 1m 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M
7455.42 1:1 OR FLATTER 606 60B 60B 60B 60B 41B 41B 416 41 M 4-IM 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 4 M 41M
EXISTING GROUND 2.6' 7453.92
Z BOTTOM OF EXPOSED WALL 60B 606 606 60M i6TM -44 -44 AJ M_ 41M 41M �1M_ �1ArL X1111 4A4
PRIOR TO CONSTRUCTION 7452.42 606
J 1-+50 I 12.3' 2+00 3.3' 7450.92
LEVELING PAD 7449.42
EXISTING GROUND 111
2 50 BOTTOM OF EXPOSED WALL
PRIOR TO CONSTRUCTION =
TOP OF WALL
(FRONT FACE OF BLOCK)
IC BLOCKS
IE BL
FST- P�i T. I FST- I PST I PST I FST- ps:p FST- F T- FST -F-09-1 FST FST FST FST FST FST FST FST FST F
T HTC
41M 4 M 41M 41M 41M 41M I 41M I 41M I 41M I 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M
41M FS TC
41M 41M I 41M I 41M I 41M I 41M I 41M I 41M I 41M I 41M I 41M I 41M 41M 41M 41M 41M --41M- 'I-M- 4Ah tM 4-tM 4TM 41M 41M I 41M I 41M 41M 41M 1 41M 1 41
M 41M -7SM-
41M 4 M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41 -41 M- --41 - 41M 41B 41B 41B 41B 41B 41B 41B 41B 41B 41B 41B 41B 41B 41B 41B
41B 41B 41B
41M 41M 41M 41M 41 VI 41M 41M 41M 41M 41B 41B 41B 416
7455.421-7455.42
41M 4 M 41M 41M 41M 41M 44M 4�M 41M 416 416
1A4 1-M 4M- +M 41 M 41 B 41 B 41 B 7453.92 1:1 OR FLATTER
LEVELING PAD
7452 42
7450
7450.92
2.7' LEVELING PAD
W
WALL 3+00 3-50 4+00
TION =
4+10.39
0 NOTE: SEE DETAIL RW, FOR BLOCK LEGEND
a
Colorado Department of Transportation
Computer File Information
Sheet Revisions
As Constructed
EAGLE VALLEY TRAIL
Project No./Code
Creation Date: 01/16/15 Initials: LAT
1
O
BEAVER CREEK TO STONEBRIDGE DR
No Revisions:
STE C440-008
O.T 714 Grand Avenue Box 298
0
DETAIL WALL PROFILE #4
Last Modification Date: 01/23/15 Initials: LAT
2
Eagle, Colorado 81631 w Michael w. west do
Phone: 970-328-6385 Associates, Inc.
Full Path: P:\EC011001\DWG\MASTER\PHASEIA
3
Revised:
Designer: LAT Structur
SA 18628
DrawingFile Name: Walls- Phase 1 a.dw
4
Detailer: Numbers
� � m�nsaoRanow 2 Innnes Dr. E
supeite 106 los
0
REGION 3 Englewood, co 80112Void:
0
Sheet Number RW-4
Acad Ver. 2010 Scale: 1"=30' Units: English
5
I Sheet Subset: Subset Sheets:
7480
"liVALL
#S
PROFILE SCALE:
TOP OF WALL
H O R I Z" q I �� _ 1 0IC
(FRONT FACE OF BLOCK)
BLOCKS
HTC11
TVERT:
1 �� = .1
0'
IF
1
HT FST FST FSM41M I 41M I 41M 41M
FST
FST I FST FST FSM I 41M 41MTI 41M I 41M I 41M 41M 41M 41M I 41M I 41M I 41M 41M
7470
HTC F T FSM I 41M I 41M 41M
4'M I41M I41M I41M I41M 41M
41M 41M 41M I 41M I 41M I 41M I 41M I 41M I 41M 41M 41M 1 41M 1 41M 1 41M 1 41 NO I
SM I 41M 41M 41M 41M I 41M I 41M 41M I 41M I 41M I 41M I 41M
41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M GIM
HT FSM 41M 41M 41M 41M 41M 41M
4'M 41M 41M 41M 41M 41M
41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41
IE BLOCK HTC
FSM 41M I 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M
41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 1M
FSM
41M 41M 41M 41M 41M _41_M_ -4-1M- 41M 41M
4 M 41M 41M 41M 41M 41M
41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 60M 60M 60M 60M 60M
E BLOCK HTC FSM 41M 41M _A1M--4'ffor 41 M 41B 41B 41B 41M 41 M 4'Tlot- -4}M :," W 4-1 M
44M- -41M- WIVI -60M 60M -69M--60M- ZOM -ZGW 60M -60M- 6OW -60M--699- M
7460
HTC F FSM 41M-- IM 41M 416
HTC 41M ,41'N� 41M 41B
1:1 OR FLAT 461.00 7459.50
7459.50
11,
7459.50
HT Sf� 41101 41M 416
7458.00
3.1
LEVELING PAD y
- BC 41B 416
12.3
BOTTOM OEXISTING F EXPOSED WALL
13.8 15.3
7456.50
PRIOR TO CONSTRUCTION
7455.00
7453.50
(TOP OF LEVELING
0100
PAD ELEVATION - TYP.)
0150
10
IC BLOCKS
TOP OF WALL
(FRONT FACE OF BLOCK)
IC BLOCKS
HTC
FST FST
FSM 41M 41M 41M 41M 41M 41 41M 41M 41M 41M 41M 41M 41M 41M M
HTC FST FST FSM 41M
41M 41M 41M 41M 1 41M 41M
41M I 41M 41M I 41M I 41M 41M I 41M I 41M 41M 41M 41M 41M 41M 41M 41M
HTCL c FST FST FSM 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M
41M 41M 41M 41M 41M 41M 41 VI 41M 41M 41M 41M 41M 41M 41M 41M 41M
FS�FT FST FSM 41M 41M 41M 41M 41M
41M 41M 41M 41M 41M 41M 41M 41M 41M
41M 41M 41M 41M 41M 41M
41M 41M 41M 41M 41M 41M 41M 4 41M 41M 41M_ 42k -44M--4tW W11G
41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 1M 41M 41M 1 41M 1 41M 1
41M 41M 41M 41M 411v1 4TW 41M 41M 41B 41B 41B 41B 41B 41B 41B
41M 1M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 1 41 41M 41M
41M 41M- 41fvr 41M 41B 41B 41B 41B
41 No I 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 41M 44
-4tM--4+M- 4'19
60M 60M 60B 606
41M M 41M 41M 41M 41M 41M 41M 41M
41M 41M 41M 41M 41M --44M- -4M 60M 60
60 60B 60B 60B 60B 60
60B 1:1 OR FLATTER NG PAD
7470.00 LEVELING PAD
_
41 41 M 41 M 41 M 41 M 41 M 41 M 41 M 41 M_ 1i0M- -60fvY "60TH 60M 606 606 60B 6 B
3 8
7468.50 Q
41M M 41M 60M 60M 92-ou -6i� -COM 60M
60B 606 60B 60B J/ zzzzz
a 7467.00
60M 6_OfyL 60M- - M
7465.50
� 0 3.3'
v
EXISTING GROUND
�60M(3�OB60�B60�B
M 60B 606 60B
7464.00
> 12.3—
BOTTOM EXPOSEDWALL
7462.50
_/24 00
N
PRIOR 0 2+50
7461.004A
TF
4B
1 5D
RW 6 RW -6
HTC
IE BLOCK
7480
7470
FST
M 41M M 41M 41M FS
41M 41M 41M 41M 41M 411vl I
FSM
M 41MM 41M--44 4
-M
-4fM �11G 41M 41B 41B 41B
41B 41H
B 1 41B I 1B
7473.00
3.6
7471.50 3
ING PAD O
Q
3
00 3+
5.35
NOTE: SEE DETAIL RWEOR BLOCK LEGEND
Colorado Department of Transportation
Computer
File Information
Sheet Revisions
As Constructed
EAGLE VALLEY TRAIL Project No./Code
Creation Date: 01/16/15 Initials: LAT
1
O
BEAVER CREEK TO STONEBRIDGE DR
No Revisions:
�7 714 Grand Avenue Box 298
DETAIL WALL PROFILE #5 STE C440-008
Last Modification Date: 01/23/15 Initials: LAT
2
Eagle, Colorado 81631 w Michael W. west &
'�® Phone: 970-328-6385 Associates, Inc.
[�
Full Path: P:\EC011001\DWG\MASTER\PHASEIA
3
Revised:
Designer: LAT Structure SA 18628
orvun"urt or mwsrom�noN 2 1me m Dr. E
Suite 106
�
Detailer. Numbers
Drawing File Name: Walls- Phase 1a.dw
4
Void:
REGION 3 �"9'°"°°"' °° 8012
Sheet Subset: Subset Sheets: Sheet Number RW -5
Acad Ver. 2010 Scale: 1 "=30' Units: English
5
Steel Railing (Typical for
Fill Wall Sections )
SETBACK= W -
(1.0" Better Agle on Weln
41" P.C.
See Detail
RWE
Cap Block
Provide For Positive Drainage
(Max Exposed Wall
From Path
rees an Ing
Asphalt Path 2%
Top Block
Non -Woven Geol4xtile Fabric
Move Blocks Forward During
Class 6 Base Course
Installation to Engage Shear\�\�\�\/`
///�//�//
Knobs (Typical)
Backfill CDOT Class 1 or Better
SETBACK= W -
(1.0" Better Agle on Weln
41" P.C.
^1j\//v//v
14'-0" Middle Block
\\
(Max Exposed Wall
14-8"
Face)
14'10"
6101,
Non -Woven Geol4xtile Fabric
7-6"
/
Redi-Rock 60"
No Revisions:
Bottom Block
m
/
12-0"
AASHTO No. 57 Stone to
13' 6"
at Least 12" Behind
Wall
1510.1
/Extend
Ground
Embedmenn
/
Existing \ \\
See Plans
Void:
Base Elevation
Acad Ver. 2010 Scale: 1 "=30' Units: English
5
Sheet Subset: Subset Sheets:
4" Perforated Shall be Sloped at Least
1 %, Drain Daylights at Min. 50 Ft
Intervals. Use Smooth, Solid PVC for
Lateral Pipes.
Crushed Stone Leveling Pad
(ASTM No. 57 or Equivalent)
1 MAXIMUM WALL CROSS SECTION DETAIL
RW -6 N.T.S.
I1� Control Joint
\J (( (If Needed)
J LJ J Concrete (4,000 psi)
1 Poured -In -Place
J Around Pipe
J �� J
v
CONNECTION OPTION #1
Expansion Anchor or Core Into the Top Block
• Spacing as Required for Appurtenance
• Mass of Single Block Available to Resist
Overturning Forces
NOTE: Core Through Cap Block for All
28" Top Block
Block in Second Course Down
(41" Middle Block Shown)
Cap Block—
Freestanding—
CONNECTION OPTION#2 Top View CONNECTION OPTION #3 Block
Grout Posts in V -Shaped Opening Between (NO SCALE) Core Through Top Block and Grout Posts in V -Shaped
Top Blocks Opening Between Blocks in Second Course Down
• Spacing in Multiples of 46 1/8" Increments • Spacing in Multiples of 46 1/8" Increments
• Mass of 2 Adjacent Blocks Available to • Mass of 2 Adjacent Blocks in Second Level Down and 3
Resist Overturning Forces Top Row Blocks Available to Resist Overturning Forces
Block in Second Course Down
(41" Middle Block Shown)
RAIL INSTALLATION OPTIONS DETAIL
DW -9 N.T.S.
3 CURVED WALL DETAIL
RW -6 N.T.S.
Wall Height
(not including cap
blocks)
Maximum
Radius
(from face of
blocks)
1161,
14'6"
3' 0"
14-8"
4'6"
14'10"
6101,
15' 0"
7-6"
15-2"
1
No Revisions:
10' 6"
15-6"
12-0"
15-8"
13' 6"
15' 10"
1510.1
16' 0"
Place
' Pipe Through Wall
4A PIPE THROUGH WALL FRONT VIEW DETAIL 4113 PIPE THROUGH WALL SIDE VIEW DETAIL
RW -6 N.T.S. RW -6 N.T.S.
Fence or Other Appurtenance
o `t Compacted Subgrade
0
AASHr. No. e] Stone to
_ E_nd at Least 1T B.hind
Wall
Embedment Depth As Required
To Resist Overturning Forces on
Appurtenance
Side View
(NO SCALE)
Colorado Department of Transportation
l 714 Grand Avenue Box 298
— Eagle, Colorado 81631 w Associat g; Inc. �`
®®� Phone: 970-328-6385
—Nfnd� OF, PGFFtA, 2 Inverness Dr. E
Z suite 106
REGION Englewood, 00 80112
3
Computer File Information
O
0
Sheet Revisions
As Constructed
EAGLE VALLEY TRAIL
BEAVER CREEK TO STONEBRIDGE DR
WALL DETAILS
Project No./Code
Creation Date: 01/16/15 Initials: LAT
1
No Revisions:
STE C440-008
Last Modification Date: 01/23/15 Initials: LAT
2
Full Path: P:\EC011001\DWG\MASTER\PHASEIA
3
Revised:
Designer: LAT Structure
Detailer Numbers
SA 18628
DrawingFile Name: Walls— Phase 1 a.dw
4
Void:
Sheet Number RW -6
Acad Ver. 2010 Scale: 1 "=30' Units: English
5
Sheet Subset: Subset Sheets:
60" BLOCKS
41 �� SERIES BLOCKS
FREESTANDING SERIES BLOCKS
(FINISHED ON TWO SIDES)
Middle - 60"
Volume = 23.0 cft
Weight = ±3290 lbs
C of G = 31.28"
10" Dia. 31 Vie"
4" High
(Typ.) 23"
18^
®
0
Half Middle - 60" 6Ys"
I�
Volume = 9.31 cft \
Weight= = ±1331 lbs 18^
g
�
10" Dia. 36 %a"
4" High 23"
(Typ.)
Middle - 41"
Volume = 16.44 cft 18"
Weight = ± .92" lbs o
g ®
C of G = 20.92"
13 918^
Half Middle - 41"
Volume = 7.28 cft 18"
Wei ht = ±1041 lbs
g
Straight Top OPTIONAL
( Smooth or Textured)
Full Block (46 Ya")
volume =10.46 cft 18"
Weight = ±1496 lbs
Half Block (23 Y22
Volume = 747 cft asY• y
Weight = ±747 lbs ±23" (Limestone)
±24" (Cobblestone)
Curved Top OPTIONAL
(Smooth or Textured) as Ya'
Volume = 10.03 cft
Weight = ±1434 lbs 18"
a2 Y" y
±23" (Limestone)
±24" (Cobblestone)
Variable Radius Walls
Straight block styles can be
manufactured with the end block 4
insert to allow the blocks to be
used in a variable radius wall.
12^
Straight Full Top Block Shown)
60"
46 Ya"
60"
22 13� fi'
40 Yz"
4s /s
40 Y"
22 tads "
Bottom - 60"
Volume = 23.9 cft
Weight = ±3420 Ibs
g
C of G = 31.90"
31 s/e'
23"
18"
o
m
0�
so"
46 Ye"
a Y6"
Half Bottom - 60"
Volume = 9.75 cft
Wei ht = ±1394 Ibs 18"
9
so"
2213/8
10" Dia.
4" High 23"
(TYPO
Bottom - 41"
Volume = 17.37 cft 1a"
Weight = ±2483 lbs ®
g o
CofG=21.3"
�
46 Ye" e�40Yz"
Half Bottom - 41
Volume = 7.73 cft 1e^
Weight = ±1105 Ibs
40Y"
22136'
3A FREESTANDING BLOCK DETAILS
RW -7 N.T.S.
FREESTANDING SERIES
(FINISHED ON
Top Corne r
(Smooth or Textured) OPTIONAL
Volume = 10.44 cft
Weight ±1493 lbs
j18"
46 Ye'
±24• (Cobblestone)
124"(Cobol stop
CORNERS
THREE SIDES) in
Half Top Corner
(Smooth or Textured) OPTIONAL
Volume = 5.18 cft
Weight ±741 lbs
23 Ya' ±23"(Limestone)
±24" (Cobblestone)
1 60" BLOCK DETAILS
RW_7 N.T.S.
2 41" BLOCK DETAILS
RW -7 N.T.S.
4" CAP BLOCKS
Two -Sided Ca Two -Sided Curve Ca
Cap P
Volume = 4.50 cft Volume = 4.25 cft
Middle Corner 10" Dia. Knobs
Volume = 10.73 cft (Typical)
Weight = ±1534 Ibs 23 8" Dia. Knobs
(OpBonal)
(Bottom Corner Block
does not have groove) 18.
Half Middle Corner
Volume = 5.28 cft
Weight = ±755 lbs
(Half Bottom Comer
Block does not have 1a"
groove)
Weight = ±644 Ibs Weight = ±608 lbs
4"
48
yI
/ 4
HST FREESTANDING TOP
S
CM FREESTANDING MIDDLE
J
BC BOTTOM CORNER
46 Ye"
2s Yz'
40Y^
��28
MC MIDDLE CORNER
J'
Dimensions Updated 11/20/13
TC TOP CORNER
46 Ys" ±23" (Limestone)
±24" (Cobblestone)
±23" (Limestone)
23 Ya ±24" (Cobblestone)
Three -Sided Cap Four -Sided Cap
Volume = 4.68 cft
Weight = ±669 lbs
Volume = 4.81 cft
Weight = ±688 Ibs
41 M 41 " MIDDLE
41B 41 " B 0 TTO M
3B FREESTANDING
BLOCK DETAILS
4"
% 4^
6 0 M 60" M D D L E
RWa N.T.S.
4a" 28 Y2"
49 Yz" 29 Y2";>
6 0 B 60" BOTTOM
HMC HASH MIDDLE CORNER
HTC HALF T O P CORNER
Two -Sided Half Three -Sided Half
Volume= 25 cft
Weight = ±3322 Ibs
Volume =2.43 cft
Weight = ±3347 Ibs
41 H B 41 " HALF B L O C K
'j4^
�4"
EC 4" THICK END CAP
IC 4" THICK INLINE CAP
23 %s' 28 Yz"
25" 2S Y2"
5 BLOCK LEGEND
4 4" CAP BLOCK DETAILS
RW.7 N.T.S.
R J N.T.S.
Colorado Department of Transportation
0T 714 Grand Avenue Box 298
Eagle, Colorado 81631 S1. Michael w. west do
9 associates, Inc.
Phone: 970-328-6385 z Inverness or, E.
� �� sPoa.row suite 106
Englewood, CO 80112
REGION 3
Computer File Information
O
0
0
0
Sheet Revisions
As Constructed
EAGLE VALLEY TRAIL Project No./Code
BEAVER CREEK TO STONEBRIDGE DR
WALL DETAILS STE C440-008
Creation Dote: 01/16/15 Initials: LAT
1
No Revisions:
Last Modification Date: 01/23/15 Initials: LAT
2
Full Path: P:\EC011001\DWG\MASTER\PHASEIA
3
Revised:
Designer: LAT Structure $A 18628
Detailer: Numbers
Sheet Subset: Subset Sheets: Sheet Number RW -7
Drawing File Name: Walls- Phase la.dw g
4
Void:
Acad Ver. 2010 Scale: 1"=30' Units: English
5
1.0 GENERAL
All subsurface soil parameters, assumed soil contact areas, and groundwater parameters
used in the design were based on the borings presented in the report by Michael W. West &
Associates titled "Geotechnical Services for ECO Trails Phases 1 and 2, Avon to Eagle—Vail,
Colorado" dated November 30, 2011.
Description
A. Work includes furnishing and installing the segmental retaining wall (SRW) units to the
lines and grades shown on the plans and as specified herein. Also included is
furnishing and installing appurtenant materials required for construction of the
complete system. The wall design shall accommodate the existing utilities without
adjustment unless noted on the plans.
B. The CONTRACTOR is responsible for determining the locations of any underground utilities prior to
construction of the wall.
C. The Contractor shall provide temporary shoring if required to construct the retaining
walls. This cost is incidental to the work and is not paid for separately.
D. The contractor is solely responsible for safety. The Engineer and Owner shall not be
responsible for means or methods of construction or for safety of workers or of the
public.
References
A. ASTM C33 — Standard for Concrete Aggragates
B. ASTM C94 — Standard Specification for Ready—Mixed Concrete
C. ASTM C1262 — Standar Test Method for Evaluating Freeze—Thaw Durability of Dry—Cast
SRW Units and Related Concrete Units
D. ASTM C1372 — Standard Specifications for Segmental Retaining Wall Units
E. ASTM C136 — Standard Test Method for Sieve Analysis of Fine and Coarse Aggregate
F. ASTM C642 — Standard Test Method for Density, Absorption, and Voids in Hardened
Concrete
G. ASTM D698 — Standard Test Method for Laboratory Compaction Characteristics of Soil
Using Standard Effort
H. ASTM D4253 — Standard Test Methods for Maximum Index Density and Unit Weight of
Soils Using a Vibratory Table
I. ASTM D4318 — Standard Test Method for Liquid Limit, Plastic Limit, and Plasticity
Index of Soils
J. ASTM D4595 — Standard Test Method for Tensile Properties of Geotextiles by the
Wide—Width Strip Method
K. NCMA Test Method SRWU-2 — Determination of Shear Strength Between Segmental
Concrete Units
L. NCMA — "Design Manual for Segmental Retaining Walls"
Delivery, Storage, and Handling
A. Contractor shall check the materials upon delivery to assure proper material has been
received.
B. Contractor shall prevent excessive mud, wet cement and like materials from coming in
contact with the SRW units.
C. Contractor shall protect the materials from damage. Damaged material shall not be
incorporated in the project.
2.0 MATERIALS
Wall Units
A. Segmental wall units shall be Redi—Rock units manufactured under license from Redi—Rock International.
Blocks including partial blocks and cap units shall conform to the requirements shown on the plans and
specifications.
B. The Contractor shall submit block samples to the Owner prior to construction to
approve block color, texture and pattern.
C. Cementitious material shall meet the requirements of Section 701. The concrete block
wall unit shall conform to the standards ASTM C94 for ready mixed concrete.
D. Aggregates used in concrete blocks shall conform to ASTM C33 for normal weight
concrete aggregate.
E. The 28—day compression strength for concrete blocks shall be equal to or greater
than 4000 psi. The quality of blocks shall be maintained such that the variations of
the compression strengths are within 10 percent. The minimum oven dry unit weight
shall be 125 pcf with an air content within 5 to 8 percent, a slump within 4 to 6
inches, and a maximum water absorption rate by weight of 6 percent. Testing shall
be performed in accordance with ASTM C642.
F. Blocks shall be visually efflorescence free. An efflorescence control agent shall be
used in the concrete mix design. Test results for freeze and thaw durability shall be
supplied with test data up to 300 cycles to confirm that blocks with concrete
additives alone can survive 150 cycles with weight loss for each of the four (4) or
five (5) samples not exceeding 1% initial weight. Per Engineer's approval, project
specific freeze and thaw durability tests may be substituted by the tests of units
made with the same material, concrete
mix design, manufacturing process, and curing method, conducted not more than 18
months prior to delivery. An independent laboratory shall provide reports and
certifications of the above tests as per ASTM C1262 and C1372 as appropriate.
G. The Contractor shall check the materials upon delivery to assure proper material has
been received, and shall protect the materials from damage. All units shall be sound
and free from cracks or other defects that would interfere with proper placement
of the unit, or impair the strength or permanence of the construction. Cracks,
chips, or color blemishes will be cause for rejection. Damaged materials shall not be
incorporated in the project. The Contractor shall prevent excessive mud, wet concrete
and like materials from coming in contact with the block units.
H. The permissible variations in the exterior dimensions of the concrete blocks shall not
differ more than plus or minus 1/8 inch, except the height of the block shall be
within plus or minus 1/16 inch from the specified dimensions for on individual
block.The minimum thickness of the concrete blocks shall comply with those designated
on the plans.
I. The Engineer shall be allowed access to the manufacturers facilities to inspect and
sample units from lots prior to delivery with a minimum 2 working days advance
notice. The Engineer will reject any concrete blocks, which do not meet the project
requirements.The Contractor shall notify the Engineer in writing at least 3 working days
before shipment of blocks begins.
Leveling Pad and Free Draining Backfill
A. Leveling Pad and Free Draining Backfill material should be washed, crushed stone, 1
inch diameter and smaller. A crushed stone meeting the gradation requirements of
ASTM No. 57 with no material passing the No. 200 sieve as shown in the following
table.
Standard Sieve Size Percent Passina
1 )�" 100
1 95-100
N' 25-60
#4 0-10
#8 0-5
#200 0
B. The leveling pad thickness shall be a minimum thickness of 12" and should extend at
least 6" in front and 12" behind the bottom block. For erosion protection and bearing capacity
the leveling pad shall have a minimum 18 inches of soil embedment.
C. Non—woven geotextile cloth shall be placed between the Free Draining Backfill and retained soil. The
geotextile shall be a needle punched non—woven fabric with a minimum grab tensile
strength of 120 pounds according to ASTM D4632.
Structure Backfill
A. All required backfill beyond the shown limits of the Free Draining Backfill shall consist of CDOT Class
1 materials in accordance with 206.
B. All other backfill behind and in front of the wall shall consist of suitable on—site soil
or imported borrow approved by the Geotechnical Engineer. Backfill shall generally
consist of sands, silts, or lean clays with a liquid limit less than 45 and a plasticity
index less than 20. Fat clay soils, cobbles, and large rock should generally be avoided
unless approved by the Geotechnical Engineer based on local practices. Frozen soils,
excessively wet or dry soils, debris, and deleterious materials should not be used.
Drainage
A. The drain pipe shall consist of a 4—inch diameter perforated Schedule 40 PVC sloped a
minimum of 1%. Lateral discharge pipes shall be used to discharge water out the face of the
wall and shall consist of 4—inch diameter, non—perforated smooth solid PVC at 50 foot
maximum spacing,
B. Alternatives for the drainage system shown on the plans may be used by the Contractor. A
detailed layout of this equivalent water collection system shall be provided by the Contractor
and approved by the Engineer.
Certifications and Testing Reports
The Contractor shall submit six sets of the following reports, certifications, and
checklists. The Contractor is responsible for providing the material testing and
certifications, obtained from the Manufacturer or an independent testing laboratory,
demonstrating that the materials meet or exceed the required wall design criteria.
A. Report for Block—Block Connection Test. An independent laboratory shall prepare the
test report. The block—to—block connection test method shall generally conform to the
requirements of NCMA Methods SRWU-2. The service state connection strength
displacement criterion shall be % inches.
B. Report and Certification for Concrete Block 28 Day Compression Strength. For the 28
day compressive strength test, a saw cut coupon compressive test is acceptable to
verify the 28—day concrete strength provided the sample allows the test to conform
to ASTM C90. The sampling shall be done at manufacturer'fs casting yard and testing
results shall be pre—approved before shipment. The Engineer will approve the sample
selections for the coupon tests. Coupons shall be cut from the two sides or the back of block
(not the front split face) with maximum two original concrete surfaces. The average compressive
strength of three tests from three randomly selected blocks, with load applied in the bearing
direction shall be equal to or greater than 4,000 psi with the minimum of 3,500 psi for individual tests
in accordance with ASTM C90 and ASTM C140.
C. Efflorescence. The block shall be visually efflorescence free. Efflorescence control agent shall be used in
concrete mix design.
D. Report for Structure Backfill (CDOT Class 1). The test report shall be prepared and certified by an
independent laboratory. The tests shall include sieve analysis (ASTM D422), Atterberg limits (ASTM D4318),
direct shear (ASTM D3080), and modified Proctor (ASTM D1557).
E. Submittal Checklist. The Contractor shall submit the Wet Cast Concrete Block Gravity Wall Submittal
Checklist, Form 1401, with the certifications and testing report submittal package.
3.0 CONSTRUCTION REQUIREMENTS
A. Technical Representative of Wall Product Supplier. The Contractor shall arrange for a technical
representative (Tech Rep) of the manufacturer of the wall products to be present at the start of
construction. If the wall products are supplied from different manufactures, a Tech Rep from each wall
product shall be present.
1. The Tech Rep shall be present for:
C. Placement of a minimum of the first two courses of concrete blocks and backfill or a minimum of
a three foot wall height,
b. If obstructions (i.e. steel piles, concrete piers/abutments, concrete boxes, pipes, etc.) exist,
placement of backfill at one of the obstructions,
C. If a vertical slip joint is required, construction of the vertical slip joint in a minimum of a two
course portion of blocks or a minimum of a three foot wall height, and
d. If corners are required, construction of a representative corner in the wall in a minimum of a two
course portion of blocks or a minimum of a three foot wall height.
2. Before construction of the wall test segment the Tech Rep shall provide the Contractor and the
Engineer the following:
a. Technical instructions as required in the construction of the earth retaining wall system.
b. Product specific specifications in the placement of the soil reinforcement and backfill in accordance
with the wall system.
C. Guidelines in placing the gravity block units and attaching them to the soil reinforcement in
accordance with the system requirements.
d. Provide technical assistance to the gravity block unit fabricator.
3. At the completion of the wall test segment the Tech Rep shall provide the following:
a. Documentation that the wall test segment was constructed in accordance with the product specific
specifications. This documentation shall include a location description (starting and ending stations
and elevations) of the wall test segment.
b. Documentation that the job site wall foreman is familiar with the wall products used to construct
the walls on the project.
4. After completion of the wall test segment the Tech Rep shall be available whenever there is any special
field condition such as change of geological condition, when there are equipment or personnel changes,
or when requested by the Engineer.
As Constructed EAGLE VALLEY TRAIL
BEAVER CREEK TO STONEBRIDGE D
No Revisions: WALL NOTES
Revised:
I- r. umDers
Void: Sheet Subset: Subset Sheets:
Proiect No./Code
STE C440-008
SA 18628
Sheet Number RW -8
Computer File Information
Sheet Revisions
Colorado Department of
Transportation
Creation Date: 01/16/15 Initials: LAT
1
T 714 Grand Avenue Box 298
Michael W. West &
Last Modification Date: 01/23/15 Initials: LAT
2
Eagle, Colorado 81631
9
Phone: 970-328-6385
R Associates, Inc.
Full Path: P:\EC011001\DWG\MASTER\PHASEIA
REGION 3
2 Invemen Dr. E.
suite las
Englmood, ca 80112
DrawingFile Name: Walls— Phase 1 a.dw
Acad Ver. 2010 Scale: 1 "=30' Units: English
selections for the coupon tests. Coupons shall be cut from the two sides or the back of block
(not the front split face) with maximum two original concrete surfaces. The average compressive
strength of three tests from three randomly selected blocks, with load applied in the bearing
direction shall be equal to or greater than 4,000 psi with the minimum of 3,500 psi for individual tests
in accordance with ASTM C90 and ASTM C140.
C. Efflorescence. The block shall be visually efflorescence free. Efflorescence control agent shall be used in
concrete mix design.
D. Report for Structure Backfill (CDOT Class 1). The test report shall be prepared and certified by an
independent laboratory. The tests shall include sieve analysis (ASTM D422), Atterberg limits (ASTM D4318),
direct shear (ASTM D3080), and modified Proctor (ASTM D1557).
E. Submittal Checklist. The Contractor shall submit the Wet Cast Concrete Block Gravity Wall Submittal
Checklist, Form 1401, with the certifications and testing report submittal package.
3.0 CONSTRUCTION REQUIREMENTS
A. Technical Representative of Wall Product Supplier. The Contractor shall arrange for a technical
representative (Tech Rep) of the manufacturer of the wall products to be present at the start of
construction. If the wall products are supplied from different manufactures, a Tech Rep from each wall
product shall be present.
1. The Tech Rep shall be present for:
C. Placement of a minimum of the first two courses of concrete blocks and backfill or a minimum of
a three foot wall height,
b. If obstructions (i.e. steel piles, concrete piers/abutments, concrete boxes, pipes, etc.) exist,
placement of backfill at one of the obstructions,
C. If a vertical slip joint is required, construction of the vertical slip joint in a minimum of a two
course portion of blocks or a minimum of a three foot wall height, and
d. If corners are required, construction of a representative corner in the wall in a minimum of a two
course portion of blocks or a minimum of a three foot wall height.
2. Before construction of the wall test segment the Tech Rep shall provide the Contractor and the
Engineer the following:
a. Technical instructions as required in the construction of the earth retaining wall system.
b. Product specific specifications in the placement of the soil reinforcement and backfill in accordance
with the wall system.
C. Guidelines in placing the gravity block units and attaching them to the soil reinforcement in
accordance with the system requirements.
d. Provide technical assistance to the gravity block unit fabricator.
3. At the completion of the wall test segment the Tech Rep shall provide the following:
a. Documentation that the wall test segment was constructed in accordance with the product specific
specifications. This documentation shall include a location description (starting and ending stations
and elevations) of the wall test segment.
b. Documentation that the job site wall foreman is familiar with the wall products used to construct
the walls on the project.
4. After completion of the wall test segment the Tech Rep shall be available whenever there is any special
field condition such as change of geological condition, when there are equipment or personnel changes,
or when requested by the Engineer.
As Constructed EAGLE VALLEY TRAIL
BEAVER CREEK TO STONEBRIDGE D
No Revisions: WALL NOTES
Revised:
I- r. umDers
Void: Sheet Subset: Subset Sheets:
Proiect No./Code
STE C440-008
SA 18628
Sheet Number RW -8
D. Gravity Block Quality Control, Placing Plan and Daily Placement Logs. Before the start
of each wall construction, the Contractor shall provide a block—placing plan and shall
supply daily placement logs to the Engineer weekly and at the completion of the
wall. The daily placement log shall consist of an elevation view of the wall showing
the dates, number of blocks placed, and the lot numbers of the blocks The block
quality control shall contain multiple submittals if required. Blocks shall be labeled
with the manufacturer'fs lot number for each shipment and corresponding
certification with one set of random samples tested for each 1,000 blocks. At least
one certification with supporting test results is required for each wall. Test results
shall be reviewed and pre—approved by the Engineer before shipment.The Engineer
may conduct separate tests with the spared coupons from the original samples.
Block testing shall be increased to one set of sampling for every 500 blocks if the
Engineer identifies substandard blocks or when block color or concrete mix changes.
With the Engineer'fs approval, block sampling may be reduced to one set of
sampling for every 2,000 blocks after the first acceptable sampling results. The
blocks used for Engineer'fs verification purposes shall be a maximum of 0.5 percent
of the total number of blocks. The Engineer will conduct block sampling as early as
possible and acquire blocks regularly. However, when tests are not performed within
90 days of the sampling date, the blocks will be returned untested. The Contractor
shall coordinate and mark the block and backfill placing sequence on the daily
placement logs. The log serves as means for the Engineer to identify where each lot
of blocks was placed.
E. Wall with Curved Alignments, Tight Curved Corners, and Sections Adjacent to Bridge
Abutment. The Contractor shall provide a placement plan that shows curved layouts,
special block or saw cut block dimensions, sequence of block placement, and
construction off—sets as recommended by the Manufacturer. For tight curved corners,
8 foot radius or less, and dissimilar foundations such as bridge abutment, to avoid
blocks with random cracks, the Contractor shall install stack bond blocks with
vertical slip joints, if necessary, as shown on the plans. A vertical slip joint for
stress relief may be built either with pre—cut or partial pre—cut individual blocks or
by saw cutting block face of breaking running bond vertically right after installation.
F. Excavation and Foundation Preparation.The Contractor shall report to the Engineer
in writing density test results for any unsatisfactory bearing material not
meeting the minimum 95 percent of standard Proctor per ASTM D698. If the
excavation for the placement of the leveling pad exposes an unsatisfactory
bearing material, the Engineer may require removal and replacement of that
material. The Engineer will provide the limits including the depth of removal.
4.0 CONSTRUCTION OF THE WALL SYSTEM
Excavation and Foundation Preparation
A. Foundation soils shall be excavated as required for installation of the retaining wall system
as shown on the plans. Excavate to the base level for a sufficient distance behind the
face to permit installation of the leveling pad.
B. Foundation soil shall be observed by the Geotechnical Engineer to confirm that the bearing
soils are similar to the design conditions or assumptions. Any unsuitable material shall
be excavated and replaced as directed by the Geotechnical Engineer.
C. The native foundation soil shall be compacted to a minimum of 95% maximum dry
density as determined by a Standard proctor test (ASTM D698) prior to the
placement of the Leveling Pad material.
Leveling Pad Placement
A. The Leveling Pad shall be placed as shown on the construction drawings. Leveling Pad
steps shall not exceed 18 inches.
B. Place the stone leveling pad in uniform loose lifts a maximum of 6"
thick. Use appropriate methods to compact material to a minimum of 90 percent
of the relative density in accordance with (ASTM D4253) or as directed by the Engineer.
Prepare and smooth the leveling pad material to ensure complete contact of the first
course with the base.
C. The Leveling Pad shall be a minimum of 12—inches thick and extend 6—inches in front of
the bottom block and 12—inches behind the bottom block.
Free Draining and Structure Backfill Placement
A. Where required, place Structure Backfill (Class 1) in accordance with CDOT
Standard Specification Section 206.
B. Where required, place crushed rock backfill in uniform loose lifts a maximum of
6—inches thick. Consolidate the backfill with a minimum of three passes with a
24—inch wide walk—behind, vibrating plate compactor capable of delivering at
least 2000 pounds of centrifugal force. Compact to a density of at least 90
percent relative density of the backfill in accordance with ASTM D-4253 and
D-4254. In place density of the crushed rock backfill shall be confirmed using
ASTM D-6938.
C. Backfill containing frost or frozen lumps shall not be used. Backfill that has
been placed and becomes frozen shall be removed and replaced at the
Contractor's expense.
D. The Contractor shall provide immediate temporary storm water protection and wind erosion
control at the end of each day during construction. If settlement occurs as the result of
loss of backfill due to wind or water erosion, non—conforming backfill such as frozen fill or
over—saturated fill, or if the backfill does not meet compaction requirements, the
Contractor shall remove the backfill, and bring the elevation to the finished grade at the
Contractor's expense.
E. A final inspection will be made 30 days after the completion of the wall. Before final
project acceptance, the Contractor shall repair any backfill losses due to wind and water
erosion.
F. To avoid the foundation of the leveling pad being washed out by rain, the area in front of
the wall and around the leveling pad shall be backfilled as soon as practicable.
Unit Installation
A. Place the first course of units directly on the Leveling Pad with the aesthetic surface
facing out and the front edges tight together. Check units for level and alignment.
Adjacent units should be in contact. If possible, begin placing units at the lowest section
of the wall. Ensure that units are in full contact with the Leveling Pad.
B. The backfill in front and back of entire base row shall be placed and compacted to firmly
lock them in place. Check all units again for level and alignment. All excess material shall
be swept from top of units.
C. Install next course of wall units on top of base row. Follow the Manufacture's
recommendations to achieve a maximum batter of 1—degree. Position blocks to be offset
from seams of blocks below. Blocks shall be placed fully forward so knob and groove are
engaged. Check each block for proper alignment and Backfill to 12 inch width behind block
with Free Draining Backfill. Spread Class 1 backfill in uniform lifts not exceeding 6 inches.
Employ methods using lightweight compaction equipment that will not disrupt the stability
or batter of the wall. Hand—operated plate compaction equipment shall be used around
the block and within 3 feet of the wall to achieve consolidation. Compact backfill to 95%
of standard proctor (ASTM D 698, AASHTO T-99) density within 2% of its optimum
moisture content.
D. Install each subsequent course in like manner. Repeat procedure to the extent of
wall height.
5.0 PROJECT REQUIREMENTS
Site Drainage
A. The CONTRACTOR shall be responsible for providing construction site drainage, both behind
and in front of the large block walls that is independent of the wall drainage system.
B. The CONTRACTOR shall be responsible for the condition and maintenance of any pipe or
conduit used to control surface water during construction. Upon substantial completion of
the work, surface water control pipes or conduits shall be removed from the site.
Alternatively, pipes or conduits may be left in place with the approval of the ENGINEER, but
shall be fully grouted (abandoned) or left in a manner that protects that structure and
adjacent facilities from ground loss associated with migration of fines through the pipe or
conduit. All work shall be subject to review by the ENGINEER.
C. Final grade above and below the retaining wall shall provide for positive drainage and prevent
ponding. Protect completed wall from other construction. Do not operate large equipment or
store materials above the wall that exceed the design surcharge loads.
Special Inspection
A. Special inspection shall be provided by the ENGINEER representing the OWNER for large
block wall construction activities.
B. The ENGINEER providing the special inspection shall be a qualified geotechnical ENGINEER
or representative with experience in monitoring large block wall construction.
C. The CONTRACTOR and ENGINEER shall maintain accurate records documenting the large
block wall construction. The CONTRACTOR shall assist the ENGINEER as necessary to
obtain the os—built top of wall elevations and all other information as required by the
OWNER and ENGINEER.
D. An independent Quality Control firm shall be retained and administrated by the
CONTRACTOR. The Quality Control firm shall perform sample collection and testing
described in the plans and specifications, and additional testing as required by site
conditions and the ENGINEER. Only qualified and experienced technicians and ENGINEERS
shall perform the testing services. The Quality Control testing firm shall be approved by
the ENGINEER.
E. Quality assurance shall be provided by the ENGINEER. This shall include verification of
geotechnical design parameters, review, and approval of quality control tests and
submittals, and observation of construction for compliance with the drawings and
specifications.
Colorado Department of Transportation Computer File Information Sheet Revisions
Creation Date: 01/16/15 Initials: LAT 1
7 714 Grand Avenue Box 298Last Modification Date: 01/23/15 Initials: LAT 2
Eagle, Colorado 81631 R soc l W West &
Phone: 970-328-6385 2 ciat: Inc Full Path: P:\EC011001\DWG\MASTER\PHASEIA 0 3
es
Suite 106Drowin File Name: Walls— Phase 1 a.dw 0 4
REGION 3 Acad Ver. 2010 Scale: 1"=30' Units: English Eng1EW00d' C0 80112
5
Method of Measurement
Concrete block gravity retaining walls will be measured by the actual number of square
feet of facial area installed and accepted. Facial area shall be defined as the area on a
vertical plane from the top of the leveling pad to the top of the wall cap at the wall
front face.
Basis of Payment
The accepted quantities will be paid for at the contract unit price per unit of
measurement for the pay items listed below:
Pay Item Pay Unit
Concrete Block Gravity Wall, Wet Cast Square Foot
All work and materials necessary and incidental to the construction of the
Concrete Block Gravity Wall, Wet Cast, including but not limited to block units,
drainage system, and geotextiles, structure backfill (class 1), free draining backfill
and leveling pad (crushed rock), temporary shoring (if necessary), and excavation
will not be measured and paid for separately, but shall be included in the work.
Block Facing Payment Reductions. In this subsection, "block" refers to either a
concrete gravity block or a precast cap unit.
A. A dislocated block is where the edge of an individual block is offset outward
more than 1/4 inch or placed with a vertical joint more than 1/4 inch from
the edge of adjacent blocks.
B. A cracked block is an individual block with any visible crack visible in natural
light from a distance equal to the wall height.
C. A corner knock—off is a block with any missing facial corners or any side
longer than % inch at the corner.
D. Substandard blocks are concrete blocks installed in any wall segments that
do not meet the certified values of compression strength, water absorption
rate, and freeze/thaw cycles. Substandard blocks include blocks actually in
the wall for which the Contractor does not provide reports and certifications
as required.
In the completed wall, or completed portion of the wall, if the number of defective
blocks (cracked blocks, corner knock—off blocks, dislocated blocks, efflorescence or
cement blemished blocks and substandard blocks) and blocks failing the straightedge
test exceeds 3 percent of the total number of blocks in any wall segment of 40 foot
horizontal or arc length, a price reduction will be applied to that portion of the wall.
The price reduction shall be 3 percent for each percent of defective blocks in this
portion of the wall exceeding 3 percent. This percentage shall accumulate thereafter to
a maximum reduction of 21 percent. For blocks subject to price reduction, if the
defects are repairable or the overall quality of wall can be improved, with the consent
from the Engineer, the Contractor may repair and reduce the percentage of price
reduction. A walkthrough inspection will be made as requested by the Contractor before
final payment.
% of
Defective
Blocks (x) in
X<3
3< X< 4
4< X< 5
5< X< 6
6<X<7
7<X<8
8<X 59
9< X 510
X>10
40 foot
section
% of Price
Reduction for
0
3
6
9
12
15
18
21
Rejection
that section
The overall payment reduction percentage shall be calculated
by dividing the sum of all defective blocks by the total
number of blocks in that portion of the wall. When this
percentage exceeds 10 percent, the Engineer will reject the
entire wall or portions thereof. The Contractor shall replace
the rejected wall at his own expense.
As Constructed EAGLE VALLEY TRAIL
BEAVER CREEK TO STONEBRIDGE
No Revisions: WALL NOTES
Revised: Designer: LAT Structurel
Detailer: rvumueis
Void: Sheet Subset: Subset Sheets:
DR Project No./Code
STE C440-008
SA 18628
Sheet Number RW -9
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