FHWA-CA-EIS-83-14-DS2 State Clearinghouse No. 83051706

4-SM-1 KP54.7/66.0 (PM34.0/41.0)

4210-112371

Devil's Slide Improvement Project

Route 1 from Half Moon Bay Airport to Linda Mar Boulevard in Pacifica,

San Mateo County, California

DRAFT

SECOND SUPPLEMENTAL ENVIRONMENTAL IMPACT STATEMENT/

SECOND SUPPLEMENTAL ENVIRONMENTAL IMPACT REPORT

Submitted Pursuant to (State) Division 13, Public Resources Code and (Federal) 42 U.S.C. 4332(2)(C) by the

U.S. DEPARTMENT OF TRANSPORTATION

Federal Highway Administration

and

THE STATE OF CALIFORNIA

Department of Transportation

___________________

/s/ HARRY Y. YAHATA Date 3/2/99 /s/ JEFFREY A. LINDLEY Date 3/4/99
District Director, District 4 Division Administrator
California Department of Transportation Federal Highway Administration

ABSTRACT

The original 1986 FEIS presented three alternative alignments with various design options to provide a safe, dependable and stable highway between the Half Moon Bay Airport and Linda Mar Boulevard in the City of Pacifica. From these alternatives, the Federal Highway Administration (FHWA) and Caltrans selected the Martini Creek alignment, a two-lane facility with an uphill climbing lane in each direction where grades are 6% or greater, as well as traffic safety design features. As a result of a NEPA lawsuit, the impact of estimated future project-generated noise was restudied in the 1995 Noise-Only Supplemental EIS/EIR. Again, the FHWA and Caltrans selected the Martini Creek alignment, but agreed to revisit the tunnel alternative in the reevaluation of the 1986 FEIS that was to follow (a tunnel alternative was previously evaluated in the 1986 FEIS as an alternative considered but withdrawn). Based upon the results of an independent tunnel feasibility report issued in October 1996, and updated cost estimates for the revised Martini Creek alignment alternative, FHWA and Caltrans determined that a tunnel alternative is a reasonable alternative for the proposed project and should be fully evaluated in the environmental process. Therefore, this second draft Supplemental EIS/EIR serves as both the revaluation of the original Final EIS for the Martini Creek alignment alternative and the initial NEPA evaluation of the tunnel alternative. The slide dewatering alternative is also evaluated in this document, but is considered not reasonable. Potential adverse impacts from the tunnel alternative could occur to the visual landscape and to wildlife. Mitigation measures to minimize these impacts include an extensive revegetation program and avoidance of sensitive habitat.

 

ALL COMMENTS MUST BE MADE IN WRITING -

NO COMMENTS WILL BE ACCEPTED VIA EMAIL

The following individuals may be contacted for additional information concerning this document:

Robert Gross, Chief Robert F. Talley
Office of Environmental Planning, South Program Delivery-Team North
Caltrans District 4 Federal Highway Administration
P.O. Box 23660 980 Ninth Street, Suite 400
Oakland, CA 94623-0660 Sacramento, CA 95814-2724
(510) 286-5623 (916) 498-5020

Comments on this draft document are due by May 12, 1999 and should be sent to Robert Gross at the above address.

TABLE OF CONTENTS


ABBREVIATIONS AND ACRONYMS

EXECUTIVE SUMMARY

1.0 INTRODUCTION

1.1 HISTORY

1.2 CURRENT STATUS

2.0 PURPOSE OF AND NEED FOR PROJECT

3.0 ALTERNATIVES

3.1 TUNNEL ALTERNATIVE

3.1.1 Design and Cost

3.1.2 Project Funding

3.1.3 Tunnel System Operations

3.2 MARTINI CREEK ALIGNMENT ALTERNATIVE

3.2.1 Changes In Design and Cost

3.3 NO PROJECT ALTERNATIVE

3.4 ALTERNATIVES CONSIDERED BUT WITHDRAWN

3.5 STATUS OF NEARBY PROJECTS

4.0 AFFECTED ENVIRONMENT

4.1 ENVIRONMENTAL SETTING

4.2 SOCIOECONOMIC SETTING

5.0 ENVIRONMENTAL CONSEQUENCES AND MITIGATION MEASURES

5.1 AESTHETICS

5.2 AIR QUALITY

5.3 CONSTRUCTION

5.4 CONSISTENCY WITH LOCAL AND REGIONAL PLANS

5.5 CULTURAL RESOURCES

5.6 FARMLANDS

5.7 FOG

5.8 GEOLOGY

5.9 HAZARDOUS WASTE

5.10 HYDROLOGY

5.11 NATURAL ENVIRONMENT

5.12 WATERS OF THE U.S.

5.13 NOISE

5.14 PARKLAND

5.15 REQUIRED PERMITS

5.16 SOCIOECONOMIC

5.16.1 Social Setting

5.16.2 Economic Setting

5.16.3 Environmental Justice

5.16.4 Right of Way Acquisitions/Relocations

5.17 TRAFFIC

5.18 WATER QUALITY

5.19 THE RELATIONSHIP BETWEEN LOCAL SHORT-TERM USES OF MAN'S ENVIRONMENT AND MAINTENANCE AND ENHANCEMENT OF LONG-TERM PRODUCTIVITY

5.20 IRREVERSIBLE AND IRRETRIEVABLE COMMITMENTS OF RESOURCES

5.21 UNAVOIDABLE ADVERSE ENVIRONMENTAL EFFECTS

5.22 GROWTH INDUCING IMPACTS

5.23 CUMULATIVE IMPACTS

6.0 TITLE VI POLICY STATEMENT

7.0 DISTRIBUTION LIST

8.0 COORDINATION

9.0 LIST OF PREPARERS

10.0 TECHNICAL STUDIES

11.0 REFERENCES

LIST OF APPENDICES

APPENDIX A Notice of Intent

APPENDIX B San Mateo County Resolution No. 61060

APPENDIX C Request For Jurisdictional Determination Letter

APPENDIX D U.S. Fish and Wildlife Service 1996 Letter and Updated Species List

 

LIST OF FIGURES


FIGURE 2-1: Regional Location Map

FIGURE 2-2: Project Area Map

FIGURE 3-1: Proposed Tunnel Alignment

FIGURE 3-2: Proposed Tunnel Plan

FIGURE 3-3: Proposed Tunnel Cross Sections

FIGURE 3-4: Proposed Martini Creek Alignment

FIGURE 3-5: Well and Piezometer Location Map

 

LIST OF TABLES


TABLE S-1: Summary of Impacts

TABLE 3-1: Short-term Pump Test Results

TABLE 3-2: Monitoring Wells (1988 MDA Study)

TABLE 5-1: County and Coastside Population and Housing Characteristics in 1980 & 1990

TABLE 5-2: Changes in Coastside and County Population, Housing between 1980 & 1990

TABLE 5-3: Income/Housing Values for San Mateo County and Coastside in 1980 & 1990

TABLE 5-4: Employment in San Mateo County and the Coastside in 1980 and 1990

TABLE 5-5: 1990 Minority, Low-Income Populations as a Percentage of a Specific Region

 

ABBREVIATIONS AND ACRONYMS


ABAG Association of Bay Area Governments

APE        Area of Potential Effect

ARB California Air Resources Board

BA        Biological Assessment

BART Bay Area Rapid Transit

BAAQMD Bay Area Air Quality Management District

BMP Best Management Practices

BO        Biological Opinion

CAAA Clean Air Act Amendments

CAP Clean Air Plan

Caltrans California Department of Transportation

CCAA California Clean Air Act

CDFG California Department of Fish and Game

CEQA California Environmental Quality Act

CMSA Consolidated Metropolitan Statistical Area

CNPS California Native Plant Society

CO        Carbon Monoxide

COE        U.S. Army Corps of Engineers

CRF        California Red-legged Frog

DEIS/R Draft Environmental Impact Statement/Report

DOT Department of Transportation

DPR        California Department of Parks and Recreation

DTSC Department of Toxic Substance Control

EIR        Environmental Impact Report

EIS        Environmental Impact Statement

EPA        Environmental Protection Agency

ESA        Environmentally Sensitive Area

ESC        Engineering Service Center

FEIS/R Final Environmental Impact Statement/Report

FHWA Federal Highway Administration

HASR Historic Architecture Survey Report

HC        Hydrocarbons

HPSR Historic Properties Survey Report

ISA        Initial Site Assessment

km         kilometer

LCP        Local Coastal Program

LOS  Level of Service

m       meter

MTC Metropolitan Transportation Commission

NEPA National Environmental Policy Act

NMFS National Marine Fisheries Service

NOI       Notice of Intent

NPDES National Pollution Discharge Elimination System

NOx       Oxides of Nitrogen

O3       Ozone

PCM Permanent Control Measures

PM        Postmile

PM10 Small Particulates

ppb       Parts per Billion

ppm        Parts per Million

ROD Record of Decision

RTP        Regional Transportation Plan

RTIP Regional Transportation Improvement Program

RWQCB Regional Water Quality Control Board

SamTrans   San Mateo County Transit

SEIS/R Supplemental Environmental Impact Statement/Report

SHPO State Historic Preservation Officer

SIP         State Implementation Plan

STIP State Transportation Improvement Program

SWPPP Storm Water Pollution Prevention Plan

TIP        Transportation Improvement Program

TCM Transportation Control Measures

USFWS United States Fish and Wildlife Service

USGS United States Geological Survey

 

Return To District 4 Home Page

ALL COMMENTS ON THIS DOCUMENT MUST BE MADE IN WRITING TO:

Robert Gross, Chief
Office of Environmental Planning, South
Caltrans District 4
P.O. Box 23660
Oakland, CA 94623-0660
(510) 286-5623