22.09.27 PSA Stolfus & AssociatesEXHIBIT B
On-Call Agreement for Professional Services
TASK ORDER 2.2
US6 Mobility Improvement Project: Final 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. Final Design Plans for the roundabout and 3 pedestrian crossings.
Budget/Proposal: ___$252,950 ____________________________________
Schedule: __Advertise in_January 2023______________________________________
DocuSign Envelope ID: 180FBF5F-F8EC-441A-B9BB-45B7FA292C7E
This Task Order is as approved by Town Council on the 13th day of September, 2022.
Town of Avon
Recommended: ________________________________Public Works Director ____Date: ______________
Eva Wilson Title
Stolfus and Associates
Approved: ________________________________________President________________ Date: ______________
Elizabeth Stolfus Title
Town of Avon
Approved: _________________________________________Avon Town Mayor ____Date: ______________
Sarah Smith Hymes Title
Town of Avon
Attest: ______________________________________________Avon Town Clerk ____Date: ______________
Patty McKenny Title
DocuSign Envelope ID: 180FBF5F-F8EC-441A-B9BB-45B7FA292C7E
9/27/2022
9/27/2022
9/28/2022
9/28/2022
5690 DTC Boulevard, Suite 330W
Greenwood Village, CO 80111
phone:303-221-2330 • fax: 303-221-2331
www.stolfusandassociates.com
September 6, 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 and preliminary design and received support from CDOT to advance to final design. This scope of
services will include final design for the roadway and traffic elements, as well as final design for drainage, lighting,
and structures and support for ROW exhibits and SUE investigations.
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.
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. ROW Exhibits
2.SUE Investigation and Utility Coordination
3. Final Design
a.Final (90%) Design Plans and specifications
b.Structure selection memo
c.Final drainage report
d.Conduct a Final Design FOR Review meeting with CDOT (virtual)
4. PS&E
a.PS&E documents for approval and clearances for CDOT
b. AD documents
ELEMENTS OF THE SCOPE OF SERVICES
A. PROJECT MANAGEMENT
Stolfus will review and process invoices and provide other project administration/ management services
(coordination and product review) throughout the duration of the project. Stolfus will be responsible for day-to-day
management and coordination of the work elements. Monthly schedule, budget and project status reports will be
included in the invoices.
Stolfus will maintain the project design schedule. The schedule will be updated as necessary during the design
process. Stolfus will notify the Town when tasks are falling behind schedule.
Attachment A
DocuSign Envelope ID: 180FBF5F-F8EC-441A-B9BB-45B7FA292C7E
Eva Wilson, PE, PTOE
September 6, 2022
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The following project team meetings are included in the scope of work:
FOR plan review meeting (virtual)
Up to 4 other progress meetings to address design elements and/or ROW needs
Stolfus will be responsible for scheduling the meetings, preparing meeting exhibits, and participating in the
meetings. Meeting notes will be generated and distributed to the meeting attendees by Stolfus.
B. TRAFFIC ANALYSIS AND CONCEPTUAL DESIGN
This work element was completed in the original design task order. No further work is anticipated.
C. PRELIMINARY DESIGN
This work element was completed in the original design task order. No further work is anticipated.
D. PRELIMINARY DESIGN (FIR) PLANS
This work element was completed in the original design task order. No further work is anticipated.
FINAL DESIGN (FOR) PLANS
Stolfus will respond to FIR comments and prepare FOR level plans, specifications and an opinion of probable
cost. General conditions are excluded from this scope of services. A CDOT Form 463 (Design Data) will be
prepared and submitted to CDOT. Curb ramps will be detailed according to ADA standards. Designs will be
refined. Stolfus will provide QA/QC review for the project. Signing and striping plans will be prepared with up to 6
special sign layouts. Phasing and traffic control device plans are excluded from this scope of services. A high-
level construction schedule will be prepared to determine a number of working days for the Construction Contract.
A memo and an exhibit with plan and profile for the modified driveway at River Forge will be prepared and
submitted to CDOT to support Access Permitting to be completed by CDOT. CDOT permitting is excluded from
this scope of work. 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 Final (90%) FOR Submittal will include:
- Title Sheet, Standard Plans List, General Notes, Tabulations, Typical Sections, Survey Control Diagram,
Geometric Control Plans, Removal Plans, Roadway Plans, Roadway Profiles, Roadway Details, Signing
and Striping Plans, Traffic Control Tabulation, Utility Plans, Drainage Plans and Profiles, Lighting Plans,
Structure Plans, and Cross-sections
PS&E DOCUMENTS
The final design will incorporate comments from the FOR and consist of final plans, specifications, and engineer’s
opinion of probable cost. The PS&E plan package will be submitted to in electronic (PDF) format for the Town to
reproduce for advertisement.
E. TOWN OF AVON AND CDOT PLAN REVIEW
Stolfus will submit plans to the Town and CDOT for formal review at 30% completion level. Reviews are
approximately three (3) weeks. A formal FOR meeting will be held with the Town and CDOT to review the plans.
Comments will be summarized and a response matrix will be prepared.
F. DESIGN STANDARDS
Drawings and designs will be in accordance with the Section 7.32 Engineering Improvement Standards of the
Town’s Municipal Code, CDOT Roadway Design Guide, NCHRP Report 672- Roundabouts: An Informational
Guide; MUTCD, CDOT M&S Standards, CDOT Standard Specification for Road and Bridge Construction and
other standards incorporated by reference.
G. FIELD SURVEYS & SUE
Farnsworth completed a topographic survey and existing ROW verification for the project as part of the original
task order, including the additional survey needed for the driveway modification at River Forge. Farnsworth
Group, Inc. will provide SUE services including QL-B locates at the Stone Bridge intersection and an estimated
DocuSign Envelope ID: 180FBF5F-F8EC-441A-B9BB-45B7FA292C7E
Eva Wilson, PE, PTOE
September 6, 2022
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ten potholes for the project. A utility exhibit and report will be included. Utilities at other sites will be located, but
not at a QL-B level. As subconsultant to Stolfus, Farnsworth will complete the following:
H. RIGHT OF WAY
Approximate permanent and temporary impacts to ROW were defined as part of preliminary design for each site.
Final design efforts will look to eliminate or minimize ROW needs. Farnsworth will research existing boundary
information and existing plats. Up to 2 title commitments will be ordered to establish existing easements.
Farnsworth will draw up any recorded easements in title work. Farnsworth will prepare two temporary easement
exhibits and legal descriptions for the two condominium properties east of Stone Bridge (River Forge) and up to
an additional two permanent easements for improvements outside the ROW at the eastbound bus stop at Stone
Bridge and the westbound bus stop at River Edge. Right-of-way plans and a ROWPR are excluded from the
scope of services based on information provided by the CDOT R3 ROW Unit.
I. UTILITY COORDINATION
Stolfus will provide overall utility coordination/management for the project. Stolfus will coordinate with the SUE
provider, review SUE plans and reports as completed and evaluate proposed design with existing utilities to
identify impacts. Stolfus will work with the hydraulics and structures designers to develop a utility conflict matrix
that will be updated as information is provided from the SUE investigation. Stolfus will assist in developing a
testhole plan based on the utility conflict matrix and will coordinate with the SUE provider to obtain testhole
information. Stolfus will also develop utility plans to accompany the utility conflict matrix that will identify conflicts,
relocations, and responsible parties and will be incorporated into the plan set. Stolfus will hold up to 2 Utility
Coordination Meetings with the Town, CDOT and affected utility companies to review impacts and relocations
(one virtual and one in-person meeting). The in-person meeting will be scheduled such that only one day is
required to meet with all utility owners. Additional one-on-one contacts via phone and email will be provided to
coordinate relocation plans, estimates and agreements. Stolfus will work with the individual utility owners to
develop utility agreements. Stolfus will also complete the utility specification that outlines the utility impacts and
actions by the contractor and/or utility company.
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 is assumed that water quality for the
pedestrian crossings will not be required. A stormwater management plan will be developed for the entire project.
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.
The FOR phase will build on the analysis from the FIR phase. In addition to refined analysis from the FIR phase,
the plans, the SWMP, hydraulic report, and quantities will include additional detail. Storm profiles will be
incorporated into the plan set at this phase. PSPs and non-standard details will be added, if necessary.
The PS&E phase will build on the analysis from the FOR phase. The plans, SWMP, hydraulic report, PSPs will be
finalized and prepared for bid.
RESPEC FOR Plan Sheets:
Tabulation of Drainage Structures
Drainage Plan Sheets
Storm Sewer Profiles
Detail Sheets
Stormwater Management Plan Narrative & Plan Sheets
J. STRUCTURE DESIGN
A small 3-4’ landscape wall is anticipated at the Stone Bridge roundabout on the south side of the roundabout.
San Engineering will prepare a structure selection memo for review and acceptance by CDOT. The report will
DocuSign Envelope ID: 180FBF5F-F8EC-441A-B9BB-45B7FA292C7E
Eva Wilson, PE, PTOE
September 6, 2022
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recommend a feasible wall system for the location and conditions that is consistent with the Town’s desired
aesthetics. Geotechnical data will not be collected since it is expected to be a small landscape wall. At FOR
structural plans and details will be prepared as well as any project specifications for the landscape wall.
Revisions will be made for advertisement, as appropriate.
K. LIGHTING DESIGN
Clanton and Associates will prepare the lighting and electrical consulting for the following:
1. Roundabout at US6 & Stone Bridge Road
2. Street Lighting
3. Pedestrian Lighting
4. Electrical for Lighting and Rapid Flashing Beacon
90% Final Design (FOR)
• Kickoff meeting
• Attend one (1) site visit to observe existing conditions
• Establish basis of design
• Lighting design
• Final lighting layout
• Luminaire selection
• Photometric (point-by-point illuminance) calculations to confirm CDOT compliance
• Lighting details
• Luminaire schedule
• Power Source Locations
• Utility coordination
• Electrical design
• Panel schedules
• One line diagrams
• Lighting Control Centers, including short circuit calculations and feeder sizing
• Circuiting and conduit, including voltage drop calculations and conduit sizing
• Electrical details
• Specifications (CDOT format)
• Tabulation of Approximate Quantities
• Opinion of Probable Cost
• Up to one (1) submittal (90% set)
• Quality Control
• IDR of submittal
• Up to three (3) design meetings
• Attendance at 90% Review meeting by web conference
100% Bid Set (PS&E)
• Incorporate comments from FOR review, up to one (1) comment response
• Final lighting design
• Final electrical design
• Final specification revisions (CDOT format)
• Tabulation of Approximate Quantities
• Opinion of Probable Cost
• Up to two (2) submittals
• Quality Control
• IDR of submittal
• Stamp set
• Up to one (1) design meeting
Specific exclusions from this scope are as follows:
DocuSign Envelope ID: 180FBF5F-F8EC-441A-B9BB-45B7FA292C7E
Eva Wilson, PE, PTOE
September 6, 2022
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• Electric Vehicle (EV) electrical infrastructure design
• Electrical receptacles for holiday lighting or maintenance
• Electrical engineering for additional electrical devices not listed
• Significant lighting and/or electrical redesign after resolution of 30% comments provided by Town of Avon and
CDOT submittal based on client changes such as: changes in streetlight
• ownership, addition of new electrical service(s), or a change from resetting existing streetlights to new streetlight
installation.
• Smart city and/or small cell infrastructure
• Any development, design, or detailing of custom luminaires
• Equipment procurement
• Commissioning
K. CONTRACT TIME
Stolfus will complete the scope of services by February 2023, excluding CDOT review and approval for
advertisement.
L. DESIGN SUPPORT DURING CONSTRUCTION
This scope of services excludes advertisement and design services during construction.
M. PUBLIC INVOLVEMENT SUPPORT
No further public involvement is included in this scope.
DELIVERABLES
Deliverables expected for this project include meeting notes; ROW exhibits, SUE plans; design calculations;
drainage report, structure selection memo; Final (90%) plans, quantities and opinion of probable cost; PS&E
documents and comment response matrix; in electronic format.
FEE
Stolfus and its subconsultants will perform these engineering services for an additional fee of $252,950 for a total
project cost of $400,000. 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: 180FBF5F-F8EC-441A-B9BB-45B7FA292C7E