The Department of Public Works (DPW) is involved in the planning, design, and construction of infrastructure projects within the unincorporated areas of San Mateo County. Our mission is to provide the public with safe, accessible roads and structures that make their communities more livable.

2022-2023 Storm Damaged Sites

 Our Projects 2026 PPP Preliminary Scope Montara.png 2026 Pavement Preservation Project Reconstruction of 4th Avenue (North Fair Oaks Area) E5131 Vicinity + Location Map REVA Reconstruction of 4th Ave (North Fair Oaks Area) Project Ohlone - Portolá - August 2025 - Existing Condition Ohlone - Portolá Heritage Trail Historic Monument Project Culvert Replacement at Alpine Road at Rogers Gulch Inlet 1 June 2025 Culvert Replacement Project at Alpine Road at Rodgers Gulch Coyote Point Landslide Repair February 2024 b Coyote Point Mudslide Repair Project Junipero Serra Park Pavement Project Vicinity Map Junipero Serra Park Pavement Project Lifeline Transportation Program (LTP) Cycle 7 Location Map Lifeline Transportation Program (LTP) Cycle 7 Project Affordable Housing and Sustainable Communities (AHSC) Cycle 9 Location Map 1 Affordable Housing and Sustainable Communities Program Cycle 9 (North Fair Oaks Area) ELH_1 PPP 2025 2025 Pavement Preservation Project 2025 Reconstruction 18th Avenue - Vicinity Location Map Reconstruction of 18th Avenue Project Location Map Pescadero High School CSA 11 Water Line Extension Project Pescadero High School CSA 11 Water Line Extension Project Entrada Way - Culvert Entrada Way Slip-Out Project Mirada Rd Lane Closure 1 Mirada Rd between Magellan Ave and Medio Ave Location Map E5079000 Half Moon Bay Airport Electrical Vault and Generator Project Half Moon Bay Airport Electrical Vault Project OSMD Sewer Trunk Line Replacement Project Phase 1 Location Map FOSMD Sanitary Sewer Trunk Line Replacement Project - Phase 1 Ferdinand Ave Drainage Improvements Project April 2023 2 Ferdinand Ave Drainage Improvements Project 1780_Higgins 2023 Slip-Out Repair Near 1780 Higgins Canyon Road Wurr Road - Pescadero Creek Road Culverts Wurr Road / Pescadero Creek Road Culverts Existing Retaining Wall North of Lerida Court Lerida Court and Gabarda Way Retaining Walls Improvement Project Vicinity Map CSA 7 Water System Distribution Pipeline Improvement Project.jpg CSA 7 Water System Distribution Pipeline Improvement Project VicinityMap Bridge Preventative Maintenance Project Phase 2 (BPMP Phase 2) Location Map Ticonderoga Retaining Wall Improvement BayRdLocationMap Bay Road Drainage Improvement Project Tunitas Beach Tunitas Beach Improvements Project Map of the Santa Cruz Avenue Corridor Santa Cruz Avenue and Alameda de las Pulgas Improvement Project Rendering of the proposed Middlefield Road project. Middlefield Road Improvement Project Alpine Road Corridor Study (cropped) Alpine Road Corridor Project - PID Past Projects Project Partners