Welcome to Caltrans District 4

Caltrans District 4 Environmental Documents

DUMBARTON BRIDGE (#35-0038) SEISMIC RETROFIT PROJECT


San Mateo and Alameda County, California 04-SM 84, PM 28.5/30.15 04-ALA 84, PM 0.0/1.2 EA 1A5220
Antioch Bridge Seismic Retrofit Project


Antioch Bridge Seismic Retrofit Project DISTRICT 4 – CC –160, PM 0.8/1.3, SAC –160, PM 0.0/1.31A5210
I-580 Westbound HOV Lane Project
Initial Study with Proposed Mitigated Negative Declaration/Environmental Assessment


Cover Sheet
TOC
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Appendix A
Appendix B
Appendix C
Appendix D
Interstate 680/State Route 4 Interchange Improvement Project


Chapter 1
Chapter 2
Chapter 3-6
Appendix A
Appendix B-G
Appendix H
Appendix I
Appendix J-L
Route 101 Auxiliary from State Route Route 85 to Embarcadero


Initial Study
Route 101 Auxiliary Lanes Embarcadero to Marsh Final Env. Doc.


Initial Study
I-80 Eastbound Cordelia Truck Scales Relocation Project
Draft Environmental Impact Report/ Environmental Assessment


front_matter.pdf
ch_1_prop_project.pdf
ch_2-0_aff_env.pdf
ch_2-1_human_env.pdf
ch_2-2_phys_env.pdf
ch_2-3_bio_env.pdf
ch_2-4_cumulative.pdf
ch_3_ceqa.pdf
ch_4_comments_coord.pdf
ch_5_preparers.pdf
ch_6_distribution.pdf
ch_7_references.pdf


Lover's Lane Safety Improvement Project, Santa Clara County


Initial Study with Proposed Mitigated Negative Declaration

IMPACTS TO THE MARSH ELEMENTARY SCHOOL


SECTION 4(F) DE MINIMIS FINDING

Benicia State Recreation Area


Finding for Impacts

Route 101 Auxiliary Lanes Embarcadero to Marsh Draft Env. Doc


Initial Study

State Route 12 Shoulder Widening from Azevedo to Liberty Island Roads, and Left-Turn Pockets at Currie, McCloskey and Azevedo Roads


Initial Study with Proposed Mitigated Negative Declaration (CEQA)

State Route 12 Jameson Canyon Road Widening & state routes 29/12 interchange project


Jameson Canyon Document Page

The California Department of Transportation (Caltrans) has prepared an environmental document for a bridge replacement project on State Route 12 in Sonoma County at the Laguna de Santa Rosa Bridge just east of Morris Street in Sebastopol.

Bay Area Archeology

Marin-Sonoma Narrows (MSN) HOV Widening Project Draft Environmental Impact Report/ Draft Environmental Impact Statement

US Route 101 East Washington Street Interchange

SR-116 Sebastopol to Cotati Roadway Rehabilitation Initial Study with Negative Declaration -- April 2009

Archaeology of a San Francisco Neighborhood

Archaeologists work to uncover a San Francisco neighborhood, and learn about the people who lived there.

State Route 4 Median Buffer Zone Project: Discovery Bay Appendices

Initial Study R4_envornmental_document | 2MB PDF gif
Discovery Bay Chapter 2 PDF gif
Discovery Bay Chapters 3,4,5PDF gif
Discovery Bay FED Cover and Table of ContentsPDF gif
State Route 84 Expressway Widening Project

ALAMEDA COUNTY, CALIFORNIA
DISTRICT 04 - ALA - 84, PM 22.5/27.3 EA 297600
Initial Study with Negative Declaration/ Environmental Assessment with Finding of No Significant Impact PDF gif

Front Matter, Summary, and Chapters 1-7
Appendix A
Appendices B-H
Appendix I (part 1 of 2)
Appendices I (part 2 of 2), J, and K
Sonoma 101 HOV Widening and Improvements Project Old Redwood Highway, Petaluma to Rohnert Park Expressway, Rohnert Park


Environmental Assessment/Final Environmental Impact Report (EA/FEIR) PDF gif

Interstate 80 High-Occupancy Vehicle Lane Project


The Department of Transportation (Department) has prepared this Initial Study, which examines the potential environmental impacts of the alternatives being considered for the proposed project located inand near the city of Fairfield, Solano County, California.
Initial Study/Proposed Mitigated Negative Declaration (31MB) red square
Sonoma 101 HOV Widening and Improvements Project Steele Lane, Santa Rosa to Windsor Road, Windsor

Environmental Assessment/Final Environmental Impact Report (EA/FEIR)

The North Connector Project
red square

Presented by Chapter Below:
red square 1_purpose_and_need.pdf
red square 2_1human_environment.pdf
red square 2_2community_impacts.pdf
red square 2_3utilities_emergency_services.pdf
red square 2_4traffic.pdf
red square 2_5visual_aesthetics.pdf
red square 2_6cultural_resources.pdf
red square 2_7hydrology.pdf
red square 2_8water_quality.pdf
red square 2_9geology_soils_seismic_topography.pdf
red square 2_10air_quality.pdf
red square 2_11hazardous_waste_materials.pdf
red square 2_12noise.pdf
red square 2_13biological_envioronment.pdf
red square 2_14_4_f_resources.pdf
red square 2_15cumulative_impacts.pdf
red square 3_comments_coordination.pdf
red square 4_list_of_preparers.pdf
red square 5_distribution_list.pdf
red square appendix_a_ceqa_checklist.pdf
red square appendix_b_title_vi_policy_statement.pdf
red square appendix_c_summary_of_relocation_benefits.pdf
red square appendix_d_minimization_and_or_mitigation_summary.pdf
red square appendix_e_list_of_technical_studies_and_references.pdf
red square appendix_f_sta_letter_in_support_of_alignment_et3.pdf
red square appendix_g_alternatives_considered.pdf
red square appendix_h_section_106.pdf
red square appendix_i.pdf
red square cover_and_preface.pdf
red square table_of_contents.pdf
Environmental Assessment/ Initial Study
I-580 Eastbound HOV Lane Project
red square

Presented by Chapter Below:
red square front_matter
red square chapters_1_to_5
red square appendix_a
red square appendices_b_to_f
Interstate 680/State Route 4 Interchange Improvement Project Draft Environmental Assessment (Complete 33MB) red square

Presented by Chapter Below:
red square 01 01_cover_and_front_matter.pdf
red square 02 02_chapter_1.pdf
red square 03 03_chapter_2.pdf
red square 04 04_chapter_3.pdf
red square 05 05_chapter_4.pdf
red square 06 06_chapter_5.pdf
red square 07 07_chapter_6.pdf
red square 08 08_appendix_a.pdf
red square 09 09_appendix_b.pdf
red square 10 10_appendix_c.pdf
red square 11 11_appendix_d.pdf
red square 12 12_appendix_e.pdf
red square 13 13_appendix_f.pdf
red square 13 14_appendix_g.pdf
red square 13 15_appendix_h.pdf
red square 13 16_appendix_i.pdf
I-580/Castro Valley Interchange Project


I-580/Castro Valley Interchange Project - Initial Study / Environmental Assessment June, 2006 (9MB) red square

Caldecott Tunnel


Caldecott Improvement Project Draft EA/EIR
SFOBB Maintenance Complex


SFOBB Maintenance Complex Project, replace and reconstruct existing maintenance facilities located at the San Francisco &ampmacr; Oakland Bay Bridge (SFOBB) toll plaza area (1.5MB) red square
Uvas Creek Bridge Replacement


This project would replace the existing scour damaged Uvas Creek Bridge (Bridge number 37-47) on Route 152 west of the City of Gilroy in Santa Clara County California. Two alignment options are being considered: immediately north or immediately south of the existing bridge, which would be demolished.

red square Initial Study red square
Interstate 680


Interstate 680 High Occupancy Vehicle &amp Auxiliary Lanes, Sunol Grade Northbound | Initial Study and Environmental Assessment

red square Initial Study red square (25MB)
Route 12 Arnold Drive Curve Realignment and Trinity Road Intersection Improvements in Sonoma County


red square Initial Study red square (2MB)
red square Arnold Drive Cross Sections red square(5MB)

Route 84 Safety Improvement Project in Niles Canyon


red square Route 84 Safety Improvement Project in Niles Canyon Notice red square

red square Environmental Document (12MB) red square
Duhig Road Rehabilitation and Curve Realignment Project


red square Part 1 | 5MB
red square Part 2 | 1MB
Initial Study for the SON-116 Stage Gulch Road project


All segments 1-3 MB each, except Full Document:

red square 01 Full Document | 16MB

red square 02 Cover, General Information, Title Page, Draft Mitigated Negative Declaration,
and Table of Contents


red square 03 Chapter 1
red square 04 Chapter 2
red square 05 Chapter 3-6
red square 06 Appendix Sheet A1
red square 07 Appendix Sheet A2
red square 08 Appendix Sheet A3
red square 09 Appendix Sheet A4
red aquare 10 Appendix Sheet A5
red square 11 Appendix Sheet A6
Rte 4 (East) Widening Project


red square Loveridge Road to State Route 160 Draft Environmental Assessment / Initial Study
Rte 84 Realignment &amp widening in Alameda County


red square Initial Study/Environmental Assessment, State Route 84 (Vallecitos Road), Pigeon Pass in Alameda County 04-ALA-KP 33.3137.0, (PM 20.7123.0), 04- 17 2400, April 2005
Interstate 880/State Route 92 Interchange Reconstruction Project


red square Final Environmental Impact Statement
The Devil's Slide Project


red square Devils Slide Draft Environmental Document. 1999
Interstate 80 High Occupancy Vehicle Lane Gap Closure Project


red square Draft EA-IS

red square Figure 3.13-1

red square Figure 1-2a

red square Figure 1-2b

red square Figure 1-2c

red square Figure 1-2d

red square Figure 1-2e

red square Figure 1-2f

red square Figure 1-2g

red square Figure 1-1

red square Figure 3.13-2

red square Figure 3.13-3

red square Figure 3.13-4

red square Figure 3.13-5

red square Appendices

Patterson Slough Bridge Deck


red square Draft Mitigated Negative Declaration/Initial Study for the Patterson Slough Bridge Deck Rehabilitation Project | 4.3MB red square Final Environmental Impact Statement
Support Documents for East Spans Replacement Environmental Document

red square (PDF Files below Recoded 10/21/04 updated) red square Marine Mammal Report red square Appendix C red square Appendix D red square Fisheries Report
Route 238 Hayward Bypass


red square Route 238 Hayward Bypass Final Environmental Impact Statement - text only (html) red square Vol i red square Vol ii red square Vol iii
Route 13


red square Route 13 Vegetation Management Project - finding of no significant impact
Route 37


red square Route 37 (Vallejo) Environmental Document
Route 101


red square Marin 101 HOV Lane Gap Closure Final Environmental Impact Statement/Report
red square Marin 101 HOV Lane Gap Closure Record of Decision
red square
Sonoma County Route 101 Initial Study/Environmental Assessment
red square Route 101 Widening project from Route 12 in to Steele Lane Interchange in Santa Rosa
red square Route101 Auxiliary Lanes Project 3rd Avenue to Millbrae Ave San Mateo County | Complete Document 22MB
State Route 152


red square Initial Study / Environmental Assessment - Safety Improvement Project on State Route 152 in Santa Clara County

Route 92


red square Route 92 Uphill Slow Vehicle Lane and /Safety Improvements
& Initial Study and Environmental Assessment &
Wilfred Avenue Interchange Project Negative Declaration/Finding of No Significant Impact (November 2006-Final Document).
Public comment period for this project is closed
 
 
&
&