To: Members of the Castle Rock Water Commission
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 a Services Agreement between the Town of Castle Rock and XXXX for the Front Street Downtown Connection, Ray Waterman Regional Water Treatment Center (RWRWTC) Pump Upgrades and Liggett Road Pipe Upsize Projects [Located in various locations throughout Castle Rock, CO] DRAFT
Town Council Agenda Date: April 16, 2024
Body
________________________________________________________________________________
Executive Summary
Castle Rock Water (CRW) staff requests approval of a resolution approving a Services Agreement (Attachment A) with ______________ for the Front Street Downtown Connection, Ray Waterman Regional Water Treatment Center (RWRWTC) Pump Upgrades and Liggett Road Pipe Upsize engineering and design services. In the effort to reduce administrative and contracting costs, gain economies of scale and generate more competitive engineering bids, CRW staff combined three separate but smaller design projects into one request for proposals. The -------_____________ proposal cost is $________________. This cost includes engineering and design services to add an additional transmission main between Front Street and Wilcox Street, complete modeling for the planned upgrades to the RWRWTC high service pump station and provide phasing recommendations for these upgrades, and upsize the distribution main from Plum Creek Water Purification Facility (PCWPF) in Liggett Road. The scope of services to be completed by ___________ is detailed in the proposal included in Attachment A. ________’s rate and fee schedule is also an attachment to the agreement.
__________shall undertake the work upon execution of the agreement and shall complete the work ____weeks thereafter. Location maps for the Front Street Downtown Connection and Liggett Road Upsize projects are provided in attachments to the agreement (Attachments B and C)
Notification and Outreach Efforts
CRW Staff will evaluate the need for public outreach based on final design location and the level of impact to the public. At this time, X public meetings are included in the scope of work.
Discussion
Downtown Castle Rock is located in the Yellow Pressure Zone and is served by one 12-inch water main that connects to Elbert and Third Street from PCWPF. The oldest portion of this transmission main was constructed in 1988 and crosses I-25, Plum Creek, and BNSF Railroad tracks. As this pipeline ages, the probability for leaks and failures of this line increase. If repairs are needed to the existing pipeline, the entire supply to downtown has the potential to be interrupted for the duration of the repair work, causing disruptions to the businesses and residences located within the downtown area. Through the Front Street Downtown Connection project, an additional 2,600 Linear Feet of 12” transmission main will be designed and constructed to connect Front Street to Wilcox Street. This additional connection point will provide redundancy in supply to downtown and will support current and future development in the area.
As Water Infrastructure and Supply Efficiency (WISE) Partnership water becomes increasingly available to Castle Rock, pumping improvements are needed at the RWRWTC. The Red Zone and Green Zone pumps will undergo several phases of upgrades to keep up with increasing supplies of water to the plant. Through this project an initial hydraulic analysis and phasing plan will be developed to guide planning efforts on the future upgrades to the High Service Pump Station. Castle Rock Water anticipates the first phase of upgrades that will be identified through this project are the Red Zone pumps. The full design of the upgrades will be completed as a separate service agreement.
Castle Rock Water is currently in the design stage of expanding PCWPF from 6 Million Gallons per Day (MGD) to 12 MGD. Upon completion of the plant expansion project, the existing 16-inch main in Liggett Road from the plant to the distribution system will be a bottleneck location for the increased production from the plant. CRW engineering has identified the need to install approximately 2,000 LF of 24-inch and 3,000 LF of 16-inch water main to distribute the increased flows from the plant.
A Request for Qualifications (RFQ) was advertised on bidnet to procure qualified consultants for the 2024 on-call professional services for various Castle Rock Water Capital Improvement Projects. A project specific Request for Proposal (RFP) was then sent to six of the pre-qualified consultants for this project. The following table shows the fee proposals received from ___ of the consulting firms:
|
Consulting Firm |
Total Cost |
|
AE2S |
|
|
Consor Engineering |
|
|
Forsgren |
No Proposal |
|
Dewberry Engineers |
|
|
Providence Infrastructure |
|
|
Burns & MacDonnell |
|
___________was chosen by the selection committee to perform the design services for this project and staff has determined the price provided is reasonable. Some of the consultants that were invited to propose on this project could not fit this work into their current project loads.
Budget Impact
The __________ proposal fee is $_______________. Staff requests an additional $_______________ (Town-managed 10% contingency) be authorized for a total project authorization of $_________________. The project will be funded from the accounts shown below.
|
Account Name |
Account Number |
Amount Requested |
Contingency Requested |
2024 Budget |
|
Frnt St to Dwntwn Wtrn |
210-4275-442.79-29 |
|
|
|
Attachments
Attachment A: Resolution (Not Attached)
Exhibit 1: Agreement and Scope of Services (Not Attached)
Attachment B: Location Map for Front Street Downtown Connection
Attachment C: Location Map for Liggett Road Pipe Upsize