City of Diamond Bar construction bids
Open bids as of Oct 22, 2026
City of Diamond Bar is a public agency in California. This page lists its open construction bids with links to the official notices, the portal it posts on, and its award history from official bid tabulations where we hold them.
Award history
The newest tabulated projects (newest letting Jun 27, 2024). Low bid is the apparent low bid on the tabulation; award status is not in this data. Bidder names are not shown.
| Project | Letting | Bidders | Low bid | Tabulation |
|---|---|---|---|---|
| Steep Canyon Road Erosion Control and Sedimentation Prevention Project | Jun 27, 2024 | 5 | $88,026 | Official tabulation |
| Residential & Collector Streets Rehabilitation (Area 3) and Arterial Rehabilitation (SI24101 & SI24103 & Grand Avenue Drainage Improvement (CIP No. PW23402) & Groundwater Drainage Improvement | Mar 19, 2024 | 7 | $9,369,000 | Official tabulation |
| City Hall Roof Rehabilitation Project | Feb 28, 2024 | 10 | $584,000 | Official tabulation |
| Groundwater Drainage Improvements-Phase 4 & 5 (Copley Drive & Moonlake Street) | Jun 7, 2023 | 4 | $223,788 | Official tabulation |
| Storm Drain Lining and Encasement - Brea Canyon Road | May 5, 2023 | 1 | $228,000 | Official tabulation |
| City Hall building paint rehab | Apr 27, 2023 | 14 | $26,200 | Official tabulation |
| Residential & Collector Streets Rehabilitation (Area 2) and Arterial Streets Rehabilitation (Golden Springs Drive from Brea Canyon Road to Grand Avenue) FY 2022-2023 Project No. SI 23102 & SI2103 | Mar 8, 2023 | 7 | $3,087,263 | Official tabulation |
| RESIDENTIAL & COLLECTOR STREETS REHABILITATION (AREA 1) AND ARTERIAL STREETS REHABILITATION (GOLDEN SPRINGS DRIVE FROM BREA CANYON ROAD TO LEMON AVENUE) | Apr 5, 2022 | 5 | $2,567,790 | Official tabulation |
| Heritage Park Re-Roof/Rehabilitation | May 28, 2021 | 9 | $64,900 | Official tabulation |
| Diamond Bar Blvd (from Pathfinder Road to Mountain Laurel Way) Rehabilitation Project | Mar 24, 2021 | 10 | $878,511 | Official tabulation |
Bidders per project
- Projects with bid tabs
- 16
- Average bidders
- 5.8
- Median bidders
- 5
- Single-bid rate
- 6.3%