District 4 Environmental Documents by County

Alameda

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

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

Dublin Boulevard Extension Project RTPL 5432(019)

• Draft environmental assessment (dublin.ca.gov)

Marin

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 noncontinuous 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

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

• 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 STPL-5934(180)_BMS_DraftEA_(withoutAppendices)_052820
• Draft Environmental AssessmentSTPL-5934(180)_BMS_DraftEA_Appendices_052820

San Mateo

State Route 1 Traffic Operational Systems Improvements Project

• The provided video slideshow with audio describes the State Route 1 Traffic Operational Systems Improvement Project; provides information on the Draft Initial Study and Negative Declaration (IS/ND) prepared for the project and available for public review and comment; and provides information on how to submit formal comments on the Draft IS/ND to Caltrans.
• State Route 1 Traffic Operational Systems Improvement Project (EA 04-2K880): 9/10/2020 Public Meeting Presentation (video with audio)
  "Accessibility Assistance: Caltrans makes every attempt to ensure our documents are accessible. Due to variances between assistive technologies, there may be portions of this document which are not accessible. Where documents cannot be made accessible, we are committed to providing alternative access to the content. Should you need additional assistance, please contact Nina.Hofmarcher@dot.ca.gov or call Zachary Gifford at 510-506-1264"
• Initial Study with Proposed Negative Declaration EA 04-2K880/ Project ID 417000040

State Route 1/84 Structures and Scour Mitigation

• 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 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

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

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 

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 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

---

District Wide Projects

State Route 37 Improvement

• SR37 Project 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