Three Creeks Parkway Restoration

Project Information

Project Number: 7562-6D8490

Project Description: This project consists of excavating creek channel banks, stockpiling soil on adjacent parcel, installing steel soldier pile and lagging wall, installing rock slope protection, installing pedestrian bridge, installing irrigation system, hardscaping, and installing or modifying appurtenances needed to widen Marsh Creek flood control channel. Additional information can be found on the Three Creeks Parkway Project Page.

General Location: Brentwood
Supervisory District: 3
Location: Marsh Creek 
Contractor: Granite Rock Company
Resident Engineer: Jacob Jones (WSP)
Phone: (925)522-1518
Working Days: See Below
Construction Start Date: May 26, 2020

Estimated Completion Date: December 2020
Funding Source: Contra Costa County Flood Control & Water Conservation District, US Environmental Protection Agency, California Natural Resource Agency, California Department of Water Resources, Sacramento-San Joaquin Delta Conservancy, State Coastal Conservancy, Pulte Homes.

  • Engineer’s cost estimate:  
    • BASE BID:  $2,762,000
    • Bid Alternate 1:    $94,000
    • Bid Alternate 2:    $362,000
    • Bid Alternate 3:    $18,000
    • Bid Alternate 4:    $99,000
    • Bid Alternate 5:    $48,000
    • Bid Alternate 6:    $210,000
  • Number of Working Days: 
    • BASE BID:            135 days
    • Bid Alternate 1:    3 additional days
    • Bid Alternate 2:    5 additional days
    • Bid Alternate 3:    0 additional days
    • Bid Alternate 4:    3 additional days
    • Bid Alternate 5:    3 additional days
    • Bid Alternate 6:    1 additional day

EPA DBE Program: This is a federal aid contract. You must comply with the requirements of the EPA’s Disadvantaged Business Enterprise (DBE) Program

Project Links