To: Honorable Mayor and Members of Town Council
Through: David L. Corliss, Town Manager
From: Mark Marlowe, P.E., Director of Castle Rock Water
Roy Gallea, P.E., Engineering Manager
Erin Evans, P.E., Project Manager
Title
Resolution Approving the First Contract Price Amendment to the Progressive Design-Build Agreement with S.J. Louis Construction, Inc. for the Phase 2 Design Services for the Sedalia Lift Station and Force Main to Plum Creek Water Reclamation Authority Project [Sedalia, CO]
Body
________________________________________________________________________________
Executive Summary
Castle Rock Water (CRW) seeks Town Council approval of a Resolution (Attachment A) approving a First Amendment (Exhibit 1) to the Sedalia Lift Station and Force Main to Plum Creek Water Reclamation Authority (PCWRA) Project Progressive Design-Build (PDB) agreement. The proposal is for the amount of $997,179.47 which includes the original contingency of $63,320.30. An additional $36,397.65 is added to the contract amount to provide for a full a10% contingency of $99,717.95 on the Amendment 1 services. As a result, the total requested authorization amount is $1,033,577.12.
The Sedalia Lift Station and Force Main project is to design and build the main wastewater conveyance line for the town of Sedalia and the surrounding area as shown in Attachment B. However, sewer trunk lines and connections to residents and businesses will need to be constructed though system development fees to take full advantage of this project.
Phase 1 of the project is underway and includes up to 60% design. As prescribed by the PDB method, at 60% a Guaranteed Maximum Price (GMP) or a lump sum price is negotiated with the Design-Builder, S.J. Louis Construction, Inc., and CRW has the option to accept this price for the completion of the project or terminate the contract. If the GMP is accepted, a Phase 2 Agreement is then negotiated, and if approved by Town Council, the project will proceed to completion by December 31, 2026.
Through the course of Phase 1, the Design-Builder proposed a schedule savings measure to separate the Phase 2 design completion from the completion of the construction GMP scope. This Amendment is to approve only the Phase 2 design services from 60% to final design. A separate amendment will be requested for the construction GMP portion of the project.
Budget Impact
The 30% project budget estimate is $18.8 million. A total of $14 million of funding for this project is being paid for by Federal American Rescue Plan Act funds granted to Douglas County. The project is being administered by CRW. CRW will receive a 1% Project Management fee of up to $140,000 for the management of the project. CRW will then fund any overage up to a maximum remaining amount of $4.8 million. The current estimated projected costs are:
|
Description |
Amount including contingency |
|
S.J. Louis PDB Phase 1 – to 60% and GMP |
$696,523 |
|
S.J. Louis PDB Phase 2 – 60% to Final (this amendment) |
$1,033,577 |
|
S.J. Louis Construction - Single FM & LS |
$15,605,000 |
|
Permanent Easements |
$473,000 |
|
Temporary Easements |
$158,000 |
|
Lift Station Land Purchase ~ 1 Acre |
$350,000 |
|
Western States/Kilty |
$246,225 |
|
CRW Project Management Fee at 1% |
$140,000 |
|
Total |
$18,702,325 |
As per the IGA with Douglas County, expenses to be reimbursed to CRW from the escrow account will be processed through GL Account # 213-4575-445.79-38 – 85 Regional Wastewater.
Staff Recommendation
Staff and Castle Rock Water Commission recommend that Town Council approve the First Amendment to the Progressive Design-Build Agreement between the Town of Castle Rock and S.J. Louis Construction, Inc. Douglas County, Special Projects also recommends approval of this amendment based on their review of the proposal.
Proposed Motion
“I move to approve the Resolution as introduced by title.”
Alternative Motions
“I move to approve the resolution as introduced by title, with the following conditions: (list conditions).
“I move to continue this item to the Town Council meeting on _____ date to allow additional time to (list information needed).”
Attachments
Staff Report
Attachment A: Resolution
Exhibit 1: Agreement
Attachment B: LS and FM Location Map