To: Members of the Castle Rock Water Commission
From: Mark Marlowe, P.E., Director of Castle Rock Water
Mark Henderson, P.E., Assistant Director
Roy Gallea, P.E., Engineering Manager
Matthew Hayes, P.E., Technical Engineering Manager
Josh Hansen, P.E., Project Manager Supervisor
Frank Main, Project Manager
Aaron Stremel, Water Engineer
Title
Fourth Amendment to the Services Agreement with J-U-B Engineers, Inc. for Oversite Services on the 6400 East Tributary at Paintbrush Park Phases 1 and 2 Project [Paintbrush Park]
Town Council Agenda Date: May 5, 2026
Body
________________________________________________________________________________
Executive Summary
The purpose of this memo is to request Town Manager approval of Fourth Amendment (Attachment 1) to the Services Agreement with J-U-B Engineers (formerly Anderson Consulting Engineering), Inc. for the 6400 East Tributary at Paintbrush Park Phases 1 and 2 Project. This amendment provides funding to support construction-phase engineering services, project closeout, and preparation and submittal of a FEMA Letter of Map Revision (LOMR). These services are necessary to advance the project from final design into construction and through completion, including regulatory closeout.
Purchase Order No. 3056 was originally authorized on February 15, 2023, in the amount of $107,490. Amendment 1 increased the contract by $98,855 for additional design and permitting efforts, bringing the total to $206,345. Amendment 2 extended the term of the agreement through December 31, 2025, to allow completion of design and permitting work. Amendment 3 further extended the agreement through December 31, 2026, with no additional cost to allow time for bidding support services.
With design now complete and the project moving into construction in 2026, Staff recommends approval of this Fourth Amendment adding $XXX,XXX for engineering support during construction, post-construction documentation, and FEMA coordination for a total authorization of $XXX,XXX. This amendment ensures continuity of engineering services by the Engineer of Record (J-U-B) through project completion and regulatory approval. The proposed amendment also extends the contract duration through December 31, 2027.
Discussion
The 6400 East Tributary at Paintbrush Park Phases 1 and 2 Project combines the previously separate Phase 1 and Phase 2 designs into a single construction project. This approach reduces overall construction costs and shortens the construction duration, minimizing impacts to the surrounding residential neighborhood and public park.
The final project design includes improvements that address stream stabilization, dam safety,
water quality, and public recreation goals, including:
• Redesign of the pond located north of The Grange to support recreational fishing
• Redesign of the dam embankment to meet State Engineer’s Office criteria for jurisdictional dams
• Inclusion of water quality capture volume in the new pond
• Addition of a riprap-reinforced pond overflow spillway
• Riffle pool drop structures to stabilize the channel grade
• Riprap and grading to prevent stream bank erosion
• New soft surface trails, stream crossings, and fishing access improvements
• Landscaping to enhance aesthetics, reduce erosion, and support wildlife habitat
Due to budget limitations, the project did not proceed to construction in 2024 or 2025.
However, based on an updated Engineer’s Opinion of Probable Cost (EOPC), the Town now has a refined understanding of the project budget requirements and has moved forward with bidding the project in 2026.
This Fourth Amendment provides funding for construction-phase engineering services, including submittal and RFI review, construction observation, field design support, record drawings, coordination of post-construction survey, and completion of the FEMA Letter of Map Revision (LOMR). These services are necessary to ensure the project is constructed in accordance with the design and successfully closed out. The anticipated construction schedule is Summer 2026 through Summer 2027. This amendment extends J-U-B’s contract through December 31, 2027.
Budget Impact
The table below shows the previous amendment history for the Services Agreement between CRW and J-U-B.
|
Amendment |
Date |
Additional Authorization |
Notes |
|
Original Contract |
February 15th, 2023 |
$107,490.00 |
|
|
Amendment 1 |
August 31st, 2023 |
$98,855.00 |
|
|
Amendment 2 |
January 9th, 2025 |
$0.00 |
Extension through December 31st, 2025 |
|
Amendment 3 |
December 29th, 2025 |
$0.00 |
Extension through December 31st, 2025 |
This amendment requests an additional $XXX for a total project authorization of $XXX. The project is funded by the 6400 E Trib. Stabilization Fund ().
|
Project Number |
Account Name |
Account Number |
Total Contract Amount |
Remaining |
Requested Additional Authorization Amount |
2026 Budget |
|
250017 |
6400 E. Trib Stabilization |
212-4475-444.75-52 |
|
$112,000 |
$421,200 |
$2,700,000 |
|
250017 |
6400 E. Trib Stabilization |
210-4275-442.75-11 |
|
|
|
$2,700,000 |
Proposed Motion
“I move to recommend to Town Council approval of the Resolution as presented”
Attachments
Attachment A: Resolution (Not Attached)
Exhibit 1: Exhibit (Not Attached)