TO: Napa County Flood Control and Water Conservation District
FROM: Richard Thomasser, District Manager
REPORT BY: Jeremy Sarrow, Watershed and Flood Control Operations Manager
SUBJECT: Agreement 260058B (FC) with Benchmark Civil Construction
RECOMMENDATION
title
Approve and authorize Agreement No. 260058B (FC) with Benchmark Civil Construction. Inc. for an annual maximum of $159,470 for services pertaining to sediment removal from the Napa Creek bypass culverts. (Fiscal Impact: $159,470 Expense; Flood District Fund; Budgeted; Discretionary)
body
BACKGROUND
The Napa County Flood Control and Water Conservation District is responsible for maintaining infrastructure that supports effective flood risk management throughout the region. One critical component of this system is the Napa Creek bypass culverts, which were designed to convey stormwater flows efficiently and reduce the risk of flooding in adjacent neighborhoods and commercial areas.
In order for the bypass system to function as intended, it is essential that the District ensures unobstructed flow conveyance leading into and through the culverts. Accumulation of debris, sedimentation, or overgrowth of vegetation can significantly reduce hydraulic capacity, compromising the effectiveness of the flood protection system and increasing the risk to surrounding properties and public safety.
Ongoing maintenance of these culverts is therefore a core responsibility of the District, necessary to uphold the performance and integrity of the flood protection infrastructure constructed as part of the Napa River/Napa Creek Flood Protection Project.
The District advertised a Request For Proposals (RFP) on June 4, 2025 in order to hire a general contractor to remove sediment from within the Napa Creek bypass culverts. Benchmark Civil Construction submitted the most qualified proposal pursuant to the scope of work outlined in the RFP.
Requested Actions:
1. Approve and authorize Agreement No. 260058B (FC) with Benchmark Civil Construction.
FISCAL & STRATEGIC PLAN IMPACT
|
Is there a Fiscal Impact? |
Yes |
|
Is it currently budgeted? |
Yes |
|
Where is it budgeted? |
Subdivision 8000500 |
|
Is it Mandatory or Discretionary? |
Discretionary |
|
Discretionary Justification: |
The District is responsible for maintaining flow conveyance so that the Napa Creek bypass culverts can function as designed to prevent flooding within adjacent areas |
|
Is the general fund affected? |
No |
|
Future fiscal impact: |
None |
|
Consequences if not approved: |
The District would not be able to maintain flow conveyance in the culverts leading to potential flooding in adjacent areas |
ENVIRONMENTAL IMPACT
ENVIRONMENTAL DETERMINATION: The proposed routine maintenance activity is covered under the District's Stream Maintenance Program (SMP) which is a project as defined by 14 California Code of Regulations 15378 (State CEQA Guidelines). A Negative Declaration was prepared for this project pursuant to the provisions of CEQA.