22.07.06 PSA Stolfus & AssociatesEXHIBIT B
On-Call Agreement for Professional Services
TASK ORDER 2.1
US6 Mobility Improvement Project: Preliminary Design
This Task Order pertains to the On-Call Agreement by and between the Town of Avon
(“TOWN”), and Stolfus and Associates (“CONTRACTOR”), dated On-Call Contract Execution
of September 3, 2021 (“the Agreement”).
CONTRACTOR shall perform services as provided herein and in the Agreement. This Task
Order shall not be binding until it has been properly signed by both parties. Upon
execution, this Task Order shall supplement the Agreement as it pertains to the project
described below.
Project Description: Provide preliminary engineering and concept analysis for the US6
Multimodal Safety and Mobility Improvements project. The project received the CDOT
Revitalizing Main Street Grant to slow prevailing speed on US6 and potentially install 3
pedestrian crossings as shown on the project site below.
Project Site:
Proposed Tasks: See Attachment A.
1. Preliminary (30%) Design Plans for the roundabout and 3 pedestrian crossings.
2. Provide preliminary engineering analysis and design concepts.
DocuSign Envelope ID: 312CF39A-CEE1-42A0-ABE9-990738ADF761
Budget/Proposal: ___$23,050 ____________________________________
Schedule: See Attachment B______________________________________
This Task Order is executed this __6th____ day of ___2022_________, YEAR.
Stolfus and Associates
Approved: ________________________________________President________________ Date: ______________
Name Title
Town of Avon
Approved: _____________________________________Public Works Director ____Date: ______________
Name Title
DocuSign Envelope ID: 312CF39A-CEE1-42A0-ABE9-990738ADF761
7/6/2022
7/6/2022
5690 DTC Boulevard, Suite 330W
Greenwood Village, CO 80111
phone:303-221-2330 • fax: 303-221-2331
www.stolfusandassociates.com
July 5, 2022
Eva Wilson, PE, PTOE
Public Works Director
Town of Avon
EWilson@Avon.org
Dear Eva:
Stolfus & Associates, Inc. (Stolfus) is pleased to amend our proposal to include additional design support for the
roundabout about at US 6 and Stone Bridge Road and for three separate pedestrian crossings to serve adjacent
bus stops at River Edge Crossing, Eaglebend Crossing, and Mountain Stream Crossing. Stolfus has completed
the conceptual design and received support from CDOT to advance to preliminary and final design. This scope of
services will include preliminary design for drainage to submit an FIR level submittal to the Town and CDOT.
It is our understanding the project is funded through a Revitalizing Main Streets grant administered by CDOT and
will follow the CDOT Local Agency process. In addition, the project is located on a US Highway, so CDOT design
standards will apply. Compliance with CDOT Local Agency process, CDOT standards, and coordination with
CDOT staff is included in the scope of services.
Final Design, Lighting, Structural Design, ROW Plans, SUE, Geotechnical, Pavement Design, Environmental,
ROW Acquisition, Advertisement Support, and Construction Management services are not included in this scope
of services.
SCOPE OF SERVICES
The anticipated scope of services and deliverables for this project include:
1. Preliminary Design
a. Preliminary (30%) Design Plans for the roundabout and 3 pedestrian crossings
b. Conduct a Preliminary Design FIR Review meeting with CDOT (virtual)
ADDED OR AMENDED ELEMENTS OF THE SCOPE OF SERVICES
D. PRELIMINARY DESIGN (FIR) PLANS
Stolfus will prepare project documentation including development of preliminary FIR plans and an opinion of
probable cost. A CDOT Form 463 (Design Data) will be prepared and submitted to CDOT. Stolfus will provide
QA/QC review for the project. We will also provide technical support throughout the project in an advisory
capacity. Our review efforts will confirm appropriateness of methodologies used, accuracy of documents,
reasonableness of conclusions, document completeness, and overall clarity.
The Preliminary (30%) FIR Submittal will include:
- Title Sheet, Standard Plans List, General Notes, Typical Sections, Survey Control Diagram, Geometric
Control Plans, Removal Plans, Roadway Plans with drainage elements, Roadway Profiles
Signing and striping will be displayed on the roadway plans. Tabulations, cross-sections, and specifications are
excluded from this scope of services.
J. DRAINAGE AND WATER QUALITY
RESPEC will provide hydrology, hydraulics and water quality design for roundabout improvements at US 6 and
Stone Bridge Road and at 3 proposed pedestrian crossings along US 6. Permanent water quality improvement
features will be incorporated at Stone Bridge Road roundabout site but it assumed that water quality for the
Attachment A: Statement of Work
DocuSign Envelope ID: 312CF39A-CEE1-42A0-ABE9-990738ADF761
Eva Wilson, PE, PTOE
June 24, 2022
Page 2
pedestrian crossings will not be required. The Eagle River floodplain is a FEMA Zone AE floodplain which flows
parallel to US 6, but it is contained within the existing channel and the proposed project limits are outside of the
floodplain limits. Eagle River floodplain permitting is not anticipated and excluded from the scope of work.
RESPEC will summarize the hydraulic design criteria for the project and perform a site visit to evaluate the site.
The FIR phase will include determining the contributing drainage basins, onsite and offsite, and perform surface
runoff analysis. Peak flows will be developed using the rational formula calculations for all drainage basins and
basin routing and associated flows will be completed. Roadside channels, culverts, inlets and/or storm sewer
systems will be designed to meet the Town’s and CDOT’s requirements. The proposed drainage system will be
developed in Microstation and provided to Stolfus for incorporation into their plan sheets. A drainage memo will include
a figure for the drainage basins with basin boundaries, land use and existing drainage infrastructure. The peak flows will
be shown on a separate figure that includes basins and routing elements. RESPEC will not develop plan sheets,
quantities, or a SWMP for this phase due to the limited schedule and funding.
FEE
Stolfus and its subconsultants will perform these engineering services for an additional fee of $23,050 for a total
project cost of $147,050. We appreciate the opportunity to work with the Town of Avon and would be happy to
answer any questions you have on this Scope of Services.
Sincerely,
STOLFUS & ASSOCIATES, INC.
Michelle R. Hansen, PE
Senior Transportation Engineer
DocuSign Envelope ID: 312CF39A-CEE1-42A0-ABE9-990738ADF761
ID Task Task Name Duration Start Finish Predecessors
1 NTP 0 days Fri 11/12/21 Fri 11/12/21
2 Data
Collection/Traffic
Anal sis
25 days Fri 11/12/21 Mon
12/20/21
3 Survey (includes
permits, PTE,
CDOT PreSurvey
Conference
25 days Fri 11/12/21 Mon
12/20/21
1
4 Traffic Counts 5 days Fri 11/19/21 Mon 11/29/1FS+5 days
5 Traffic Analysis 15 days Tue 11/30/2 Mon 12/20/4
6 Conceptual Design 105 days Tue 12/21/2 Thu 5/19/22
7 Conceptual
Roadway/Traffic
(3 crossin s
21 days Tue
12/21/21
Fri 1/21/22 3
8 Conceptual
Roadway/Traffic
(roundabout
21 days Tue
12/21/21
Fri 1/21/22 3,5
9 CDOT Scoping
Meetin
0 days Mon 2/7/22 Mon 2/7/22 8FS+11 days
10 Revise Concept 43 days Tue 2/8/22 Thu 4/7/22 9
11 CDOT Concept
Follow‐up
Meetin
0 days Fri 3/4/22 Fri 3/4/22 10SS+19 days
12 Public
Involvement by
Town
33 days Mon 3/7/22 Wed
4/20/22
11
13 CDOT Concept
Review
21 days Thu 4/21/22 Thu 5/19/22 10,12
14 Preliminary Design 91 days Thu 4/21/22 Mon 8/29/2
15 Update Scope for
Preliminary and
Final Design
(Drainage,
Lighting, Survey,
Walls, Geotech,
SUE,ROW Plans)
36 days Thu 4/21/22 Fri 6/10/22 10,12
16 Supplemental
Surve
10 days Fri 5/20/22 Fri 6/3/22 13
17 SUE QL‐B 25 days Mon 6/20/2 Mon 7/25/2 15FS+5 days
18 Preliminary
Roadwa
25 days Fri 5/20/22 Fri 6/24/22 13
19 Preliminary
Draina e
24 days Mon
6/20/22
Fri 7/22/22 15FS+5 days,12
20 Preliminary
Lighting
24 days Mon
6/20/22
Fri 7/22/22 15FS+5
days,18SS+10
21 Structure
Selection
20 days Mon
6/27/22
Mon
7/25/22
18
22 FIR Plans 20 days Mon 6/27/2 Mon 7/25/2 18
11/12
2/7
3/4
Septemb October Novembe Decembe January February March April May June July August Septemb October Novembe Decembe January February March April
Task
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Project Summary
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Inactive Milestone
Inactive Summary
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Manual Summary Rollup
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External Milestone
Deadline
Progress
Manual Progress
Page 1
Project: stone bridge schedule
Date: Tue 6/28/22
Attachment B: Project Schedule
DocuSign Envelope ID: 312CF39A-CEE1-42A0-ABE9-990738ADF761
ID Task Task Name Duration Start Finish Predecessors
23 FIR QC 10 days Tue 7/26/22 Mon 8/8/22 22
24 FIR Submittal 0 days Mon 8/8/22 Mon 8/8/22 23
25 FIR Review 15 days Tue 8/9/22 Mon 8/29/2 24
26 FIR Meeting 0 days Mon 8/29/2 Mon 8/29/2 25
27 Final Design 90 days Tue 8/9/22 Thu 12/15/2
28 Environmental
Investi ation
90 days Tue 8/9/22 Thu
12/15/22
24
29 Final
Roadwa /Traffic
20 days Tue 8/30/22 Tue 9/27/22 26
30 Confirm ROW
Needs
0 days Tue 9/27/22 Tue 9/27/22 29,21
31 Structure Design 20 days Wed 9/28/2 Tue 10/25/2 29
32 Drainage Design 40 days Tue 8/30/22 Tue 10/25/2 26
33 Lighting Design 20 days Wed 9/28/2 Tue 10/25/2 29SS+20 days
34 SUE QL‐A 20 days Wed 9/14/2 Tue 10/11/2 26FS+10 days
35 Incorporate SUE
Data into Desi n
10 days Wed
10/12/22
Tue
10/25/22
34
36 FOR Plan
Production
20 days Wed
9/28/22
Tue
10/25/22
29
37 Specifications 10 days Wed 10/12/Tue 10/25/2 36FF
38 FOR QC 10 days Wed 10/26/Tue 11/8/22 36
39 FOR Submittal 0 days Tue 11/8/22 Tue 11/8/22 38
40 FOR Review 15 days Wed 11/9/2 Thu 12/1/22 39
41 FOR Meeting 0 days Thu 12/1/22 Thu 12/1/22 40
42 PS&E Plans 20 days Fri 12/2/22 Tue 1/3/23 41
43 CDOT Clearances 15 days Wed 1/4/23 Tue 1/24/23 42,28,51
44 Conditional Approval
for Advertisement
(ROW)
0 days Tue 1/24/23 Tue 1/24/23 43
45 Advertisement 15 days Thu 1/26/23 Wed 2/15/2 44FS+1 day
46 Begin Construction 0 days Wed 3/29/2 Wed 3/29/2 45FS+30 days,52
47 ROW 122 days Wed 9/28/2 Thu 3/23/23
48 ROW Exhibits 15 days Wed 9/28/2 Tue 10/18/2 30
49 CDOT ROW
Review
10 days Wed
10/19/22
Tue 11/1/22 48
50 ROW Exhibit
Revisions
7 days Wed
11/2/22
Thu
11/10/22
49
51 ROW Acquisition
Approval
10 days Fri 11/11/22 Mon
11/28/22
50
52 ROW Acquisition 80 days Tue 11/29/2 Thu 3/23/23 51
8/8
8/29
9/27
11/8
12/1
1/24
3/29
Septemb October Novembe Decembe January February March April May June July August Septemb October Novembe Decembe January February March April
Task
Split
Milestone
Summary
Project Summary
Inactive Task
Inactive Milestone
Inactive Summary
Manual Task
Duration-only
Manual Summary Rollup
Manual Summary
Start-only
Finish-only
External Tasks
External Milestone
Deadline
Progress
Manual Progress
Page 2
Project: stone bridge schedule
Date: Tue 6/28/22
DocuSign Envelope ID: 312CF39A-CEE1-42A0-ABE9-990738ADF761