District 4 Environmental Documents by County

District Wide Projects

SR 37 Sears Point to Mare Island Improvement Project

The Draft Environmental Impact Report/Environmental Assessment is available for public review. The comment period is open from January 13 to February 28, 2022. A virtual public meeting will be held on Wednesday, February 2, 2022 from 5:30 - 7:00 p.m. Visit the Meetings and Events page for more information.

Email public scoping comments to Yolanda Rivas at StateRoute37@dot.ca.gov.

Mail public comments to:

California Department of Transportation, District 4
Attn: Yolanda Rivas
P.O. Box 23660, MS-8B
Oakland, CA 94623-0660  

Draft EIR/EA Volume 1 (PDF)

Draft EIR/EA Volume 2 (PDF)

State Route 37 Flood Reduction Project From US 101 to SR 121 Junction

• Fact Sheet

I-680 Express Lane Completion Project

Proposed Overview - As a major north-south freeway, I-680 is a heavily traveled corridor that connects the southern San Francisco Bay Area with Interstate 80 (I-80) and passes through Santa Clara, Alameda, Contra Costa and Solano counties. Within Contra Costa County, travelers experience congestion, traffic bottlenecks within the corridor, and increased travel times. To improve system continuity, congestion relief and operations, the project—part of CCTA’s INNOVATE 680 program—proposes to construct a northbound express lane from Livorna Road to State Route 242 (SR-242). It would also convert the existing northbound high-occupancy vehicle (HOV) lane that runs from SR-242 to the Benicia-Martinez Bridge Toll Plaza, to an express lane. The goal of the project is to complete the I-680 express lane network through Contra Costa County to increase travel speeds for those choosing to use the express lane.

The commenting period will be open from June 15, 2020 to July 29, 2020.

• Virtual Scoping Meeting Website

Alameda

I-80/Ashby Interchange Project

• I-80/Ashby Avenue (SR-13) Interchange Improvements - Alameda CTC
• Initial Study with Proposed Mitigated Negative Declaration and Environmental Assessment

I-80/Gilman Interchange Project 

• Project Home Page

I-580 and Interstate 205 Roadside Safety Improvement Project

• Initial Study with Negative Declaration EA 04-4J940/ EFIS 0416000025
• Initial Study with Proposed Negative Declaration EA 04-4J940/ EFIS 0416000025

I-580 Safety Lighting Project

• Initial Study with Mitigated Negative Declaration EA 04-0K680/ EFIS 0416000125
• Initial Study with Proposed Mitigated Negative Declaration EA 04-0K680/ EFIS 0416000125

Arroyo de la Laguna Bridge Project

• Environmental Impact Report/Environmental Assessment, Signed, with Errata Sheet - EA 04-0J550 / Project ID 0414000012 (pdf)
• EIR-EA Appendices (pdf)

I-580 Storm Damage Permanent Restoration Project

• ALAMEDA COUNTY, CALIFORNIA, DISTRICT 4 – ALA – 580 (PM 4.3) 04-0P120/0417000401 The California Department of Transportation (the Department) proposes to restore the function of an existing storm drain system and preserve the structural integrity of the surrounding embankment and highway along Eastbound I-580 in Alameda County. Project scope includes the replacement of corrugated metal pipe, grading and shoring of the existing slope, and backfill of the eroded embankment at Postmile 4.3. The Department has provided a virtual project presentation that includes an opportunity to comment on the project in leu of a formal public meeting (see website link below). However, the Department will provide an opportunity for a formal public meeting if requested. All requests must be made by the May 11, 2021 deadline.
• 580 Storm Damage Permanent Restoration Project Initial Study – Proposed Mitigated Negative Declaration
• View the virtual project presentation

I-680 HOV/express lanes project

• FED (MND/FONSI) Initial Study with Mitigated Negative Declaration/Environmental Assessment with Finding of No Significant Impact
• Initial Study with Proposed Mitigated Negative Declaration/Environmental Assessment EA 04-0Q3000 / Project ID 0418000069
  

I-880 Interchange Improvements

• Initial Study with Proposed Negative Declaration and Environmental Assessment

I-880 Oakland-Alameda Access Project (OAAP)

• Oakland Alameda Access Project-OAAP (EA 0G360) Environmental Document
• Oakland Alameda Access Project-OAAP (EA 0G360) Environmental Appendices
• Oakland Alameda Access Project-OAAP (EA 0G360) Environmental Appendices - Technical Studies

Dublin Boulevard Extension Project RTPL 5432(019)

• Draft environmental assessment (dublin.ca.gov)

Marin

State Route 37 Capital Preventive Maintenance (CAPM) Pavement Project

• Initial Study with Proposed Negative Declaration EA 04-2K740/ EFIS 0417000018 (PDF)

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

• The proposed Project is located in Marin County, California. The Project proposes to repair 27.8 non-continuous lane miles of SR 1, and is divided into two portions. The southern portion is located between post miles (PMs) 22.8 and 33.0. The northern portion is located between PM 45.0 and PM 50.

101 Irwin Creek Culvert Rehabilitation Project

• Final Initial Study with Negative Declaration 0K510/0416000096
  

U.S. 101 Storm Damage Repair Project

• Notice of Availability of a Section 4(f) De Minimis Determination for U.S. 101 Storm Damage Repair Project
• Draft U.S. 101 Storm Damage Repair Project (04-4J420) – Section 4(f) De Minimis

Napa

Napa Bundle Northern Corridor Gas Pipeline Maintenance Program Project

• PG&E Napa Project Page
• Initial Study with Proposed Mitigated Negative Declaration
• Initial Study with Mitigated Negative Declaration EA 04-1W650/ID 0421000069

State Route 29 Bridge Rail Replacement Project

• Initial Study with Negative Declaration EA 04-0K630 / ID 0416000111
• Initial Study with Proposed Negative Declaration EA 04-0K630 / ID 0416000111

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

• Sulphur Creek Bridge (BR# 21-0016) Napa County Route 29 PM 28.43

State Route 29/State Route 221 Soscol Junction Improvement Project

• Initial Study with Proposed Mitigated Negative Declaration/Environmental Assessment (PDF)

State Route 128 Hopper Slough Bridge Replacement Project

• Hopper Slough Bridge (BR# 21-0019) Napa County Route 128 PM 5.1

Ritchie Creek Bridge Replacement Project for Fish Passage Improvement

• Initial Study with Mitigated Negative Declaration/Environmental Assessment with Finding of No Significant Impact 
• 4J990 Ritchie Creek Public Meeting ADA Compliant Slides
• EA 04-4J990/EFIS 0416000037 Initial Study with Proposed Mitigated Negative Declaration/Environmental Assessment

San Francisco County

Better Market Street Project

• Draft Environmental Assessment and Draft Section 4(f) Evaluation (PDF)
• Draft Environmental Assessment Appendices (PDF)

San Mateo

State Route 1 Safety Barriers Project

• State Route 1 Safety Barriers Project Draft IS/MND
• Public virtual open house information and project overview 

State Route 1 Pescadero Creek Bridge Rails

• 4j870 Signed Initial Study with Negative Declaration
• Draft Environmental Document (Initial Study with Proposed Negative Declaration) EA: 04-4J870 EFIS: 0416000029
• Public Notice Notice of Availability of a Section 4(F) De Minimis Determination for Pescadero Creek Bridge Rails Project
• Draft Pescadero Creek Bridge Railing Replacement Project Evaluation of Potential Section 4(F) Resources And De Minimis Impact Determination

State Route 1 Traffic Operational Systems Improvements Project

• State Route 1 Traffic Operational Systems Improvements Project Final Initial Study with Proposed Negative Declaration EA 04 2K880/ Project ID 417000040
• State Route 1 Traffic Operational Systems Improvements Project Recirculated Draft Initial Study with Proposed Negative Declaration EA 04‑2K880/ Project ID 417000040
• Public Virtual Open House Information for State Route 1 Traffic Operational Systems Improvements Project
• April 8, 2021 Public Meeting Presentation Slides

82 El Camino Real Roadway Renewal Project

• Draft Environmental Impact Report/Environmental Impact Statement and Draft Section 4(f) Evaluation
• Appendices

State Route 1/84 Structures and Scour Mitigation

• FINAL Initial Study with Proposed Mitigated Negative Declaration
• DRAFT Initial Study with Proposed Mitigated Negative Declaration EA 04-2J790 / Project ID 04-1500-0014
• 1 & 84 Mitigation Project Flyer
• Public Meeting Video

Highway 101 Cordilleras Creek Bridge Replacement Project

• Initial Study with Mitigated Negative Declaration and Environmental Assessment with Finding of No Significant Impact
• Initial Study with Proposed Mitigated Negative Declaration and Environmental Assessment EA 04-2J730/ EFIS 0415000004
• 101 Cordilleras Creek Bridge Project Flyer

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

• Final Environmental Document EA 04- 4J850; Project ID 04-1600-0028
• Signed Draft Environmental Document EA 04- 4J850; Project ID 04-1600-0028

Santa Clara

Newell Road Bridge Replacement Project

• Final Environmental Impact Report / Environmental Assessment (www.cityofpaloalto.org)

State Route 9 Saratoga Creek Bridge

• Final Environmental Impact Report/ Environmental Assessment and Final Section 4(f) Evaluation with Finding of No Significant Impact

Solano

State Route 12 Roadway Resurfacing, Restoration and Rehabilitation Project

• Initial Study with Proposed Mitigated Negative Declaration/ Environmental Assessment 

State Route 84 Real McCoy Fenders and Ramps Replacement Project

• Initial Study with Proposed Mitigated Negative Declaration/Environmental Assessment
• Information regarding this project can be found at the State Route 84 Real McCoy Fenders and Ramps Replacement Project website

Sonoma

1 Soldier Pile Wall Project

• Initial Study with Mitigated Negative Declaration EA#: 04-0J300 EFIS#: 041300043
• Initial Study with Proposed Mitigated Negative Declaration EA#: 04-0J300 EFIS#: 0413000433
• Evaluation of Potential Section 4(f) Resources and De Minimis Impact Determination

Sonoma 1 Culvert Rehabilitation Project – North

• October 2020 – Initial Study with Negative Declaration 1K750/0416000309
• 1K750 – Section 4(f) Determination
• February 2020 - Initial Study with Proposed Negative Declaration

Sonoma 1 Culvert Rehabilitation Project – South

• Initial Study with Negative Declaration 04-1K730/0416000307
• June 2019 - Initial Study with Proposed Negative Declaration 1K730/0416000307
• 1k730_Section_4(f)_Evaluation_20200304
• Public Notice

State Route 12 Capital Preventive Maintenance Project

• Initial Study with Mitigated Negative Declaration EA# 04-0K520 EFIS#: 0416000098
• Initial Study with Proposed Mitigated Negative Declaration EA# 04-0K520 EFIS#: 0416000098
• Notice of Intent to Adopt a Mitigated Negative Declaration and Notice of Availability of the Initial Study with Proposed Mitigated Negative Declaration

Santa Rosa U.S. Highway 101 Bicycle and Pedestrian Overcrossing

• Initial Study Santa Rosa Highway 101 Final ED 1.29.21 ADA compliant     
• Initial Study with a Proposed Mitigated Negative Declaration 04-2G340/0413000213
• Audio recording of Zoom Public Meeting in Spanish (Pending)
• Video recording of Zoom Public Meeting in English with sign-language interpretation
• Video slideshow presentation with English narration and captions
• Video slideshow presentation with Spanish narration

State Route 12 Boas Drive Intersection Safety Project

• Initial Study with Proposed Negative Declaration (PDF)