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
Frank N. Main, Project Manager
Title
Resolution Approving a Construction Contract with 53 Corporation, LLC for the McMurdo Gulch Stream Reclamation Priority 3 Project [McMurdo Gulch south of the intersection of Castle Oaks Drive and Autumn Sage Street]
Body
________________________________________________________________________________
Executive Summary
Castle Rock Water is seeking Town Council approval of a Resolution (Attachment A) awarding a Construction Contract to 53 Corporation, LLC (53 Corp) for the McMurdo Gulch Stream Reclamation Priority 3 Project in the amount of $2,412,127 plus approximately a 2% Town-managed contingency in the amount of $48,000 for a total authorization of $2,460,127.
The project is located adjacent to Castle Oaks Drive; at four sites south of the intersection of Castle Oaks Drive and Autumn Sage Street. Improvements generally include stream channel improvements at the McMurdo Gulch - multiple locations (Reaches 1, 2 and 3) and (Tributaries 5 and 6), consisting of Grading, Water Control, Unclassified Excavation, Boulder Cascade, Bank Protection, Riffle Drops and Pools, Type H Void-Filled Riprap, Type M Void-Filled Riprap, Boulder Steps, Landscape, Erosion Control, Sediment Control and related Appurtenances. This project will mitigate impact and preserve the natural drainageway within the project area (see Attachment B).
This project will be funded through the Stormwater Enterprise Fund, a developer contribution and through a Participation Agreement from the Cherry Creek Basin Water Quality Authority (Authority). Construction Notice to Proceed is scheduled for December 2024 with a construction completion projected in August 2025.
Budget Impact
The Table below provides a breakdown of planned funding by sponsors for the McMurdo Gulch Stream Reclamation Priority 3 Project.
|
Sponsor |
Previous Project Contributions |
New Funding Contribution 2024 |
Transfer of leftover funds from McMurdo Priority 1 & 2 |
Total Contribution |
Percent Contribution |
|
Developer Contribution |
$225,000 |
$1,545,250 |
------- |
$1,770,250 |
34% |
|
CCBWQA |
$170,121 |
$868,846 |
$251,380 |
$1,290,347 |
25% |
|
Town of Castle Rock Stormwater |
$285,362 |
$1,140,696 |
$675,345 |
$2,101,403 |
41% |
|
Total Project Cost |
$680,483 |
$3,554,792 |
$926,725 |
$5,162,000 |
100% |
|
ACTUAL PROJECT COST |
|
Engineering |
Acquisition |
Construction |
Total |
|
$ 1,006,080.60 |
$ 256,365.63 |
$ 2,997,670.00 |
$ 4,260,116.23 |
|
|
|
|
|
|
SPONSOR FUNDING COST SPLIT |
|
Town of Castle Rock |
$ 1,424,837.17 |
|
CCBWQA at 25% Total Cost |
$ 1,065,029.06 |
|
Developer Fixed Cost |
$ 1,770,250.00 |
|
Total |
$ 4,260,116.23 |
Funds for this Construction Contract will be charged to the Stormwater capital account below. Sufficient stormwater funds for this project are included in the 2024 budget.
|
Fund Description |
Account Number |
Amount |
Contingency |
Total |
2024 Budget Balance |
|
McMurdo Gulch Stream Stbl |
212-4475-444.75-51 |
$2,412,127 |
$48,000 |
$2,460,127 |
$3,170,961 |
The 2024 Budget Balance of $3,170,961 includes both the Developer and CCBWQA contributions to the project.
Staff Recommendation
Staff recommends Town Council approval of a Resolution awarding a Construction Contract with 53 Corporation, LLC for the McMurdo Gulch Stream Reclamation Priority 3 Project at a cost of $2,412,127 plus a 2% Town-managed contingency in the amount of $48,000 for a total authorization in the amount of $2,460,127.
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
Attachment A: Resolution
Exhibit 1: Construction Contract
Attachment B: Project Site Map