District 4 Environmental Documents by County


Alameda County I-580 Safety Lighting Project

Dublin Boulevard Extension Project RTPL 5432(019)


Marin State Route 1 (SR 1) Capital Preventive Maintenance (CAPM) Project

101 Irwin Creek Culvert Rehabilitation Project


State Route 29 Sulphur Creek and York Creek Bridge Rail Replacement Project

State Route 29/State Route 221 Soscol Junction Improvement Project

State Route 128 Hopper Slough Bridge Replacement Project

San Mateo

Bridge Seismic Restoration Project: (Alpine Road Undercrossing Bridge, Sand Hill Road Overcrossing Bridges, and Interstate-280/Interstate-380 Separation Bridges)

Santa Clara

State Route 9 Saratoga Creek Bridge


State Route 12 Roadway Resurfacing, Restoration and Rehabilitation Project


Sonoma 1 Culvert Rehabilitation Project – North

Sonoma 1 Culvert Rehabilitation Project – South

State Route (SR) 12 Capital Preventive Maintenance (CAPM) Project

District Wide Projects

State Route 37 Improvement