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County of San Mateo Public Works Search Top Menu Contact Us Career Departments Translate Services Roads Utilities Airports Surveying & Map Checking Flood and Sea Level Rise Resiliency District County Buildings Graffiti Abatement Projects Our Projects Your Construction Project Projects Out to Bid Permits Info for Residents Your Construction Project Storm Preparedness Flood Control Districts About Us Our Organization Org Chart Contact Info We are scheduling a maintenance window for all public-facing smcgov.org websites on Friday June 16 from 3am-7am PST. The website will be unavailable while the work is performed. -- Monday, March 16, 2020 The Public Works Department front counter is currently closed. Please use other means of contact. Learn more » Monday, July 27, 2020 Pedestrian Bridge Closure – Mirada Rd Pedestrian Bridge Learn more » -- Our Services The Department of Public Works serves the unincorporated areas of San Mateo County, providing public services and operating facilities that benefit the community as well as County employees and clients of County agencies. Roads Road Maintenance Street Sweeping Parking Restrictions Utilities Sewers Streetlights Water Airports San Carlos Airport Half Moon Bay Airport Surveying & Map Checking Benchmarks Fieldbooks Right-of-Way Maps View All Services Our Projects The Department of Public Works 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. Mirada Road Pedestrian Bridge Replacement – Miramar Area The Department is working to design a project to replace the deteriorating pedestrian/bicycle bridge over Arroyo de en Medio and reinforce the banks adjacent to the bridge.... View more View Mirada Road Pedestrian Bridge Replacement – Miramar Area Reconstruction and Cape Seal of Madrid Ave, Sevilla Ave & Sonora Ave in El Granada Reconstruction and Cape Seal on sections of Madrid Avenue, Sevilla Avenue, and Sonora Avenue in El Granada.... View more View Reconstruction and Cape Seal of Madrid Ave, Sevilla Ave & Sonora Ave in El Granada Reconstruction of A Street and 2nd Ave in Unincorporated Colma Roadway reconstruction of A Street from El Camino Real to Third (3rd) Avenue and Second (2nd) Avenue from A Street to County/Daly City limit in the Unincorporated Colma Area.... View more View Reconstruction of A Street and 2nd Ave in Unincorporated Colma View All Projects View More Contact Us Phone (650) 363-4100 Fax (650) 361-8220 Email -- Main Office map -- 555 County Center 5th Floor Redwood City, CA 94063 View All Contacts Storm Preparedness Be prepared for the next storm with tips and emergency phone numbers, and find out where to pick up sandbags. Learn More COVID-19 Info -- County Home Board of Supervisors A-Z Services Departments Open Data Careers Visiting County Center Email Updates Media Contacts SMC Alert Feedback Browser Compatibility Accessibility Policy Privacy Policy Endorsement Disclaimers Connect with the County! Facebook Instagram Linkedin Twitter Nextdoor YouTube Main: (650) 363-4000 -- Back to Top...