REDESIGN of a FLOOD CONTROL PROJECT by CITIZEN INITIATIVE1 Bev Ortiz2
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Floodplain Evaluation
City of Pleasant Hill—Oak Park Properties Specific Plan Draft EIR Appendix H: Floodplain Evaluation FirstCarbon Solutions THIS PAGE INTENTIONALLY LEFT BLANK Oak Park Properties Specific Plan City of Pleasant Hill, California Draft Revised Floodplain Evaluation Report Prepared for: Prepared by: August 2019 BN 37454543v2 Oak Park Properties Specific Plan City of Pleasant Hill, California Draft Revised Floodplain Evaluation Report Submitted to: City of Pleasant Hill This report has been prepared by or under the supervision of the following Registered Engineer. The Registered Civil Engineer attests to the technical information contained herein and has judged the qualifications of any technical specialists providing engineering data upon which recommendations, conclusions, and decisions are based. ________________________________________ Han-Bin Liang, Ph.D., P.E. Registered Civil Engineer ________________________________________ Date August 2019 BN 37454543v2 Draft Revised Floodplain Evaluation Report Oak Park Properties Specific Plan City of Pleasant Hill, California Table of Contents Executive Summary ........................................................................................................... iii 1 General Description ............................................................................................ 1 1.1 Project Description .............................................................................................. 1 1.2 Purpose of Study ................................................................................................ -
Contra Costa County, California
VOLUME 12 OF 45 CONTRA COSTA COUNTY, CALIFORNIA AND INCORPORATED AREAS Community Community Name Number ANTIOCH, CITY OF 060026 BRENTWOOD, CITY OF 060439 CLAYTON, CITY OF 060027 CONCORD, CITY OF 065022 DANVILLE, TOWN OF 060707 EL CERRITO, CITY OF 065027 HERCULES , CITY OF 060434 LAFAYETTE , CITY OF 065037 MARTINEZ , CITY OF 065044 MORAGA , TOWN OF 060637 OAKLEY , CITY OF 060766 ORINDA, CITY OF 060722 PINOLE, CITY OF 060032 PITTSBURG, CITY OF 060033 PLEASANT HILL, CITY OF 060034 RICHMOND, CITY OF 060035 SAN PABLO, CITY OF 060036 SAN RAMON, CITY OF 060710 WALNUT CREEK, CITY OF 065070 CONTRA COSTA COUNTY (UNINCORPORATED AREAS) 060025 REVISED March 21, 2017 Federal Emergency Management Agency FLOOD INSURANCE STUDY NUMBER 06013CV002C NOTICE TO FLOOD INSURANCE STUDY USERS Communities participating in the National Flood Insurance Program have established repositories of flood hazard data for floodplain management and flood insurance purposes. This Flood Insurance Study (FIS) may not contain all data available within the repository. It is advisable to contact the community repository for any additional data. Part or all of this FIS may be revised and republished at any time. In addition, part of this FIS may be revised by the Letter of Map Revision process, which does not involve republication or redistribution of the FIS. It is, therefore, the responsibility of the user to consult with community officials and to check the community repository to obtain the most current FIS components. Initial Countywide FIS Effective Date: June 16, 2009 Revised Countywide FIS Dates: September 30, 2015 March 21, 2017 TABLE OF CONTENTS VOLUME 1 – March 21, 2017 Page 1.0 INTRODUCTION......................................................................................................................... -
Walnut Creek Sediment Study Final
Walnut Creek Sedimentation Study January 10, 2012 Prepared for: U.S. Army Corps of Engineer Sacramento District 1325 J Street Sacramento, CA 95814-2922 Prepared by: Ronald R. Copeland, Ph.D., P.E. Mobile Boundary Hydraulics, PLLC P.O. Box 264 Clinton MS 39060 1 Table of Contents LIST OF FIGURES ............................................................................................................................................ 4 LIST OF TABLES .............................................................................................................................................. 6 LIST OF PLATES .............................................................................................................................................. 7 INTRODUCTION ............................................................................................................................................. 8 Purpose ..................................................................................................................................................... 8 Study Area ................................................................................................................................................. 8 Study Approach ......................................................................................................................................... 8 Numerical Model Description ................................................................................................................... 9 NUMERICAL MODEL ................................................................................................................................... -
Briones Regional Park ~ East Sa Y Regional Park District
1981 RESOURCE ANALYSIS / . " MANAGEMENT P'LAN ___d - ..-..-'--- ."--- '. _.' -: ....... · .. ·-.. · __ .....;.r~- ... -.. ' .~~.- " -:;~"""''::-.~'''- ._......... >1 ..... .... 7. • "'._........ : .... .....-'1.... ...-;-"7 '" •••~..;~/j, .... -~-...:"..~ .-.-~ .... ,,;.: ..•.. ~ ... -.-- -._--------- ., BRIONES REGIONAL PARK ~ EAST SA Y REGIONAL PARK DISTRICT BRIONES REGIONAL PARK RESOURCE ANALYSIS Adopted: September 22, 1981 Resolution No: 1981-9-262 Prepared by: East Bay Regional Park District 2950 .Peralta Oaks Court Oakland, CA 94605 (510) 635-0135 .... TABLE OF CONTENTS - continued PAGE VII. REPORT PREPARATION AND PERSONS CONTACTED 84 A. REPORT PREPARATION 84 B. PERSONS' CONTACTED 85 VIII. BIBLIOGRAPHY- FIGURE I. C-l: LOCATION 5 '.. FIGURE I. D-2 : AER~ PHOTOGRAPH 6 FIGURE I. E-l: MAJOR FEATURES· AND PARK NAMES 7 FIGURE III. :8-1: MASTER PLAN UNITS 14 FIGURE tV. A-I: TOPOGRAPHY 19 FIGliM tV. A-2: ASPECT 20 FIGIJRE IV. A-3: SLOPE' 21 FIGURE IV. A-4: GEOLOGY 22 FIGURE IV. A-5: GEtiLOGIC CROSS~SECTIONS 23 FIGURE IV. A-6: LANDSLIDE SUSCEPTIBILITY 24 FIGURE IV. A-7: BEDROCK DEPTH 25 FIQURE IV. A-8: EROSIO:N 26 FIGURE IV. B-1: HYDROLOGY 27 FIGURE IV. F-l: VEGETATION 44 FIGtmE IV. F-2: GRASSLAND MANAGEMENT STRATA 53 FIGURE IV. H-l: RANGE CAPABILITY 64 FIGUlm IV. I-I: wiLDFIRE-REST 'WIND 68 FIGURE IV. 1-2: WILDFlRE-NORTHEAST WIND 68 FIGURE IV. K-l: ARCHAEOLOGY -71 FIGURE V. A-I: IMPROVEHENTS 75 FIGUlm V. A-2: ROAD CROSS SECTIONS 77 FIGURE V. B-1: POTENTIAL DEVELOPMENT SITES 79 FlGURE VI. A-I: ACQUISITION 81 . TABLES TABLE IV. A-I: SOIL PROFILES 24 TABLE IV. B.... l: WATERSHEDS 28 TABLE IV. B"..2: AVERAGE MONTHLY FLOWS.