DIGITAL FLOOD INSURANCE RATE MAP DATABASE, MONTEREY COUNTY, CALIFORNIA

Resource lineage description

source

source description  Source Contribution: Spatial and attribute information for cross sections, floodplain information, station start descriptions, BFEs, general structures, surface water features, and some feature names.Source Type Paper

representative resolution scale:

Scale denominator: 12000

source citation

Title Flood Insurance Study, City of Del Ray Oaks, CA

publication  Date   1981-05-04

presentationForm  MAP AND REPORT

other Citation Details  The hydrologic and hydraulic analyses for this study were performed by George S. Nolte and Associates, for the Federal Insurance Administration, under Contract No. H-4722. This work, which was competed in July 1980, covered all significant flooding sources affecting the City of Del Rey Oaks.

cited responsible party - publisher

organisation Name  Federal Emergency Management Agency

Contact information

Address

, Washington, D.C.

cited responsible party - originator

organisation Name  Federal Emergency Management Agency

source

source description  Source Contribution: Spatial and attribute information for cross sections, floodplain information, station start descriptions, BFEs, general structures, surface water features, and some feature names.Source Type Paper

representative resolution scale:

Scale denominator: 12000

source citation

Title Flood Insurance Study, City of Gonzales, CA

publication  Date   1981-05-18

presentationForm  MAP AND REPORT

other Citation Details  The hydrologic and hydraulic analyses for this study were performed by George S. Nolte and Associates, for the Federal Insurance Administration, under Contract No. H-4722. This work, which was competed in August 1980, covered all significant flooding sources affecting the City of Gonzales.

cited responsible party - publisher

organisation Name  Federal Emergency Management Agency

Contact information

Address

, Washington, D.C.

cited responsible party - originator

organisation Name  Federal Emergency Management Agency

source

source description  Source Contribution: Spatial and attribute information for general structures.Source Type Paper

representative resolution scale:

Scale denominator: 12000

source citation

Title Letter of Map Revision, case number 92-09-125P, City of Salinas, CA

publication  Date   1992-09-10

presentationForm  mapDigital

other Citation Details  A Letter of Map Revision is a letter, usually accompanied by a map attachment, that revises BFEs, flood hazard zones, floodplain boundaries and/or floodways shown on the FIRM.

cited responsible party - publisher

organisation Name  Federal Emergency Management Agency

Contact information

Address

, Washington, D.C.

cited responsible party - originator

organisation Name  Federal Emergency Management Agency

source

source description  Source Contribution: Spatial and attribute information for cross sections, station start descriptions, floodplain information, surface water features, and general structures.Source Type Digitized

representative resolution scale:

Scale denominator: 12000

source citation

Title Monterey County, California Digital Flood Insurance Rate Map

publication  Date   2009-04-02

presentationForm  mapDigital

other Citation Details  This study was revised in February 2006 to incorporate an updated analysis of flood hazards along a 19-mile reach of the Carmel River from the San Clemente Dam downstream to the Pacific Ocean. Portions of the revised study area had previously been studied by both detailed and approximate methods. The hydrologic and hydraulic analyses were performed by Northwest Hydraulic Consultants for FEMA under Contract No. EMF-2001-CO-0015, and completed in March 2006. This study was revised in November 2006 to incorporate an updated analysis of flood hazards along Calera and Watson Creeks using detailed methods. In addition to these updates, the upper 1,065 feet of El Toro Creek was restudied. This update defines flood hazards using Zone AE, Zone X, and floodway designations. Calera Creek had previously been studied by detailed methods and Watson Creek had previously been studied by approximate methods. The hydrologic and hydraulic analyses were performed by Northwest Hydraulic Consultants for FEMA under Contract No. EMF-2001-CO-0015, and completed in April 2005.

cited responsible party - publisher

organisation Name  Federal Emergency Management Agency

Contact information

Address

, Washington, D.C.

cited responsible party - originator

organisation Name  Federal Emergency Management Agency

source

source description  Source Contribution: Spatial and attribute information for general structures.Source Type Paper

representative resolution scale:

Scale denominator: 12000

source citation

Title Letter of Map Revision, case number 89-09-30P, Monterey County, CA (Unincorporated Areas)

publication  Date   1992-02-21

presentationForm  mapDigital

other Citation Details  A Letter of Map Revision is a letter, usually accompanied by a map attachment, that revises BFEs, flood hazard zones, floodplain boundaries and/or floodways shown on the FIRM.

cited responsible party - publisher

organisation Name  Federal Emergency Management Agency

Contact information

Address

, Washington, D.C.

cited responsible party - originator

organisation Name  Federal Emergency Management Agency

source

source description  Source Contribution: Spatial and attribute information for general structures.Source Type Paper

representative resolution scale:

Scale denominator: 12000

source citation

Title Letter of Map Revision, case number 02-09-869P, Monterey County, CA (Unincorporated Areas)

publication  Date   2003-03-20

presentationForm  mapDigital

other Citation Details  A Letter of Map Revision is a letter, usually accompanied by a map attachment, that revises BFEs, flood hazard zones, floodplain boundaries and/or floodways shown on the FIRM.

cited responsible party - publisher

organisation Name  Federal Emergency Management Agency

Contact information

Address

, Washington, D.C.

cited responsible party - originator

organisation Name  Federal Emergency Management Agency

source

source description  Source Contribution: Location of roads, railroads, bridges, streams, and other physical features.Source Type CD-ROM

representative resolution scale:

Scale denominator: 12000

source citation

Title Digital Orthophoto Quadrangle

publication  Date   1987-01-01

presentationForm  REMOTE SENSING IMAGE

other Citation Details  The digital orthophoto quadrangle (DOQ) is a 1-meter ground resolution, quarter-quadrangle (3.75-minutes of latitude by 3.75-minutes of longitude) image cast on the Universal Transverse Mercator Projection (UTM) on the North American Datum of 1983 (NAD83). The imagery is based on panchromatic black and white (or color infra-red) NAPP or NAPP-like photography.

cited responsible party - publisher

organisation Name  U.S. Geological Survey

Contact information

Address

, Reston, VA

cited responsible party - originator

organisation Name  U.S. Geological Survey

source

source description  Source Contribution: Base map general structures.Source Type Digitized

representative resolution scale:

Scale denominator: 12000

source citation

Title Monterey County, California Digital Flood Insurance Rate Map

publication  Date   2009-04-02

presentationForm  mapDigital

other Citation Details  Base map general structures digitized from U.S. Geological Survey Digital Orthophoto Quadrangles.

cited responsible party - publisher

organisation Name  Federal Emergency Management Agency

Contact information

Address

, Washington, D.C.

cited responsible party - originator

organisation Name  Federal Emergency Management Agency

source

source description  Source Contribution: Grid of DFIRM panels.Source Type Digitized

representative resolution scale:

Scale denominator: 6000

source citation

Title Monterey County, California Digital Flood Insurance Rate Map

publication  Date   2009-04-02

presentationForm  mapDigital

other Citation Details  Grid of FIRM panels created for this Flood Insurance Study.

cited responsible party - publisher

organisation Name  Federal Emergency Management Agency

Contact information

Address

, Washington, D.C.

cited responsible party - originator

organisation Name  Federal Emergency Management Agency

source

source description  Source Contribution: Spatial and attribute information for floodplain information, cross sections and station start descriptions.Source Type Paper

representative resolution scale:

Scale denominator: 12000

source citation

Title Letter of Map Revision, case number 96-09-148P, City of Gonzales, CA

publication  Date   1996-01-10

presentationForm  mapDigital

other Citation Details  A Letter of Map Revision is a letter, usually accompanied by a map attachment, that revises BFEs, flood hazard zones, floodplain boundaries and/or floodways shown on the FIRM.

cited responsible party - publisher

organisation Name  Federal Emergency Management Agency

Contact information

Address

, Washington, D.C.

cited responsible party - originator

organisation Name  Federal Emergency Management Agency

source

source description  Source Contribution: National Geodetic Survey reference points (bench marks).Source Type On-line

representative resolution scale:

Scale denominator: 24000

source citation

Title Geodetic bench mark positions and descriptions

publication  Date   2007-01-01

presentationForm  mapDigital

other Citation Details  The National Geodetic Survey (NGS) serves as the Nation's depository for geodetic data in the National Spatial Reference System. These geodetic data include bench marks and other control points that provide the base of reference for latitude, longitude, height, scale, orientation, and gravity measurements used throughout the United States.

cited responsible party - publisher

organisation Name  National Geodetic Survey

Contact information

Address

, Silver Spring, MD

cited responsible party - originator

organisation Name  National Geodetic Survey

source

source description  Source Contribution: Public Land Survey System (range, township, and sections).Source Type CD-ROM

representative resolution scale:

Scale denominator: 100000

source citation

Title Monterey County PLSS data

publication  Date   1993-11-01

presentationForm  mapDigital

other Citation Details  This data set includes the Public Land Survey System for the State of California. Townships are roughly six miles square, and are numbered north and south from an established baseline. Likewise, ranges are numbered east and west from an established meridian. California uses three baseline/meridians, these being Humboldt, Mt. Diablo, and San Bernardino, abbreviated HBandM, MDBandM, and SBBandM. Township and range values are combined in the redefined item TOWN-RANGE to facilitate dissolve and dropline functions. Many places in the State are not gridded into sections. Most of these cases involve Spanish and Mexican landgrant areas that were honored by the government of the United States when California became a State, and were subsequently excluded from the section survey process. Other areas were not sectioned because of difficulties in surveying wetlands and mountainous terrain.

cited responsible party - publisher

organisation Name  U.S. Geological Survey

Contact information

Address

, Reston, VA

cited responsible party - originator

organisation Name  U.S. Geological Survey

source

source description  Source Contribution: Spatial and attribute information for political entities.Source Type CD-ROM

representative resolution scale:

Scale denominator: 12000

source citation

Title Monterey county and corporate boundaries

publication  Date   2004-08-01

presentationForm  mapDigital

other Citation Details  Work performed by MJD. Current to 2002 only. Accurate to approximately 1:12,000 or scale of original parcel base for County. Projection is UTM 10 meters, WGS84.

cited responsible party - publisher

organisation Name  AMBAG, Association of Monterey Bay Area Governments

Contact information

Address

, Marina, CA

cited responsible party - originator

organisation Name  AMBAG, Association of Monterey Bay Area Governments

source

source description  Source Contribution: Spatial and attribute information for political entities.Source Type CD-ROM

representative resolution scale:

Scale denominator: 100000

source citation

Title Public, conservation, and trust lands

publication  Date   2004-11-01

presentationForm  mapDigital

other Citation Details  A 1:100,000 polygon features class representing public, conservation and trust land ownership in the state of California. Developed for the California Resources Agency's Legacy Project, this dataset depicts ownership features as submitted by major public, trust, and non-profit groups in the state. PCTL04_1 is an update to the Legacy Project's PCTL03_1a geographic dataset, which was built upon a prior effort by the USBR to map public lands. Contributors to past datasets were contacted with requests for any updated lands. Agencies that had ownership changes or boundary adjustments were BLM (including NPS, USBR, and SLC), USFWS, CDFG, CDF, and CDPR. Major changes for the PCTL04_1 update included changes in data supplied by BLM. The changes were due to the agency's switch to a GCBD-based PLS. There were also improvements made to NPS boundaries from a joint effort between NPS and BLM. Changes in USFWS lands were primarily due to re-coding of ownership status. CDF and CDFG also had minor changes. Purpose The California Legacy Project is an initiative by the California Resources Agency to help state agencies and the state's conservation partners make better decisions about how to conserve precious natural resources. This Public, Conservation and Trust Lands dataset is part of a number of geographic datasets developed for this initiative, and is intended to provide stakeholders in both the public and private sectors with a planning-level representation of ownership in California. THIS LAYER MUST NOT BE USED FOR PARCEL OR PROPERTY BOUNDARY MAPPING OR ANALYSIS. This version cannot be considered final, and is continually subject to review and update by contributing groups and/or agencies. It is intended to provide GENERAL ownership information for conservation and other planning purposes. This dataset was compiled by VESTRA Resources, Inc, under contract to the California Resources Agency.

cited responsible party - publisher

organisation Name  California Resources Agency Legacy Project

Contact information

Address

, Sacramento, CA

cited responsible party - originator

organisation Name  California Resources Agency Legacy Project

source

source description  Source Contribution: Grid of USGS 7.5-Minute Series Topographic Maps.Source Type On-line

representative resolution scale:

Scale denominator: 24000

source citation

Title 7.5-Minute Quadrangle Grid

publication  Date   2002-12-01

presentationForm  mapDigital

other Citation Details  Grid of USGS 7.5-Minute Series Topographic Maps.

cited responsible party - publisher

organisation Name  ESRI

Contact information

Address

, Redlands, CA

cited responsible party - originator

organisation Name  U.S. Geological Survey

source

source description  Source Contribution: Spatial and attribute information for cross sections, floodplain information, station start descriptions, BFEs, and surface water features.Source Type Paper

representative resolution scale:

Scale denominator: 12000

source citation

Title Flood Insurance Study, City of King City, CA

publication  Date   1981-04-15

presentationForm  MAP AND REPORT

other Citation Details  The hydrologic and hydraulic analyses for this study were performed by George S. Nolte and Associates, for the Federal Insurance Administration, under Contract No. H-4722. This work, which was competed in August 1980, covered all significant flooding sources affecting the King City.

cited responsible party - publisher

organisation Name  Federal Emergency Management Agency

Contact information

Address

, Washington, D.C.

cited responsible party - originator

organisation Name  Federal Emergency Management Agency

source

source description  Source Contribution: Spatial and attribute information for floodplain information.Source Type Paper

representative resolution scale:

Scale denominator: 12000

source citation

Title Flood Insurance Study, City of Marina, CA

publication  Date   1993-02-03

presentationForm  MAP AND REPORT

other Citation Details  The hydrologic and hydraulic analyses for this study were performed by George S. Nolte and Associates, for the Federal Insurance Administration, under Contract No. H-4722. On April 1, 1987, the results of this study were reviewed and accepted at a final coordination meeting attended by representatives of the community and FEMA. This study was revised on February 3, 1993, to incorporate the results of revised hydrologic and hydraulic analyses, including a soils investigation, of 11 flood hazard areas shown as approximate Zone A flooding on the Flood Insurance Rate Map for the City of Marina. The revised study was prepared by Ensign and Buckley, Consulting Engineers, the study contractor for the Federal Emergency Management Agency (FEMA) under Contract No. EMW-90-6-3133 and was completed in December 1991.

cited responsible party - publisher

organisation Name  Federal Emergency Management Agency

Contact information

Address

, Washington, D.C.

cited responsible party - originator

organisation Name  Federal Emergency Management Agency

source

source description  Source Contribution: Spatial and attribute information for cross sections, floodplain information, station start descriptions, BFEs, general structures, surface water features, and some feature names.Source Type Paper

representative resolution scale:

Scale denominator: 12000

source citation

Title Flood Insurance Study, City of Monterey, CA

publication  Date   1986-06-17

presentationForm  MAP AND REPORT

other Citation Details  The hydrologic and hydraulic analyses for the original study were performed by George S. Nolte and Associates, for the Federal Insurance Administration, under Contract No. H-4722. This work, was competed in December 1979. The coastal analyses for the revised study were performed by Ott Water Engineers, Inc., for FEMA, under Contract No. EMW-83-C-1175. This work was completed in August 1984.

cited responsible party - publisher

organisation Name  Federal Emergency Management Agency

Contact information

Address

, Washington, D.C.

cited responsible party - originator

organisation Name  Federal Emergency Management Agency

source

source description  Source Contribution: Spatial and attribute information for general structures, cross sections, station start descriptions, BFEs, and surface water features.Source Type Paper

representative resolution scale:

Scale denominator: 12000

source citation

Title Flood Insurance Study, City of Salinas, CA

publication  Date   1981-05-04

presentationForm  MAP AND REPORT

other Citation Details  The hydrologic and hydraulic analyses for the original study were performed by George S. Nolte and Associates, for the Federal Insurance Administration, under Contract No. H-4722. This work, which was competed in July 1980, covered all significant flooding sources affecting Salinas.

cited responsible party - publisher

organisation Name  Federal Emergency Management Agency

Contact information

Address

, Washington, D.C.

cited responsible party - originator

organisation Name  Federal Emergency Management Agency

source

source description  Source Contribution: Spatial and attribute information for cross sections, floodplain information, station start descriptions, BFEs, and general structures.Source Type Paper

representative resolution scale:

Scale denominator: 12000

source citation

Title Flood Insurance Study, City of Seaside, CA

publication  Date   1986-08-19

presentationForm  MAP AND REPORT

other Citation Details  The hydrologic and hydraulic analyses for riverine areas in the original study were performed by George S. Nolte and Associates, for the Federal Insurance Administration, under Contract No. H-4722. This work was competed in December 1979. The coastal hazard analyses for this revised study were performed by Ott Water Engineers, Inc., for FEMA, under Contract No. EMW-83-C-1175. This work was completed in August 1984.

cited responsible party - publisher

organisation Name  Federal Emergency Management Agency

Contact information

Address

, Washington, D.C.

cited responsible party - originator

organisation Name  Federal Emergency Management Agency

source

source description  Source Contribution: Spatial and attribute information for cross sections, floodplain information, station start descriptions, general structures, and surface water features.Source Type Paper

representative resolution scale:

Scale denominator: 12000

source citation

Title Flood Insurance Study, Monterey County, CA (Unincorporated Areas)

publication  Date   1984-01-30

presentationForm  MAP AND REPORT

other Citation Details  The hydrologic and hydraulic analyses for most of the original study were performed by George S. Nolte and Associates, for the Federal Insurance Administration, under Contract No. H-4722. Hydrologic and hydraulic analyses for Pajaro River and Thomasello Creek were performed by Brown and Caldwell, for FEMA, under Contract No. H-4723. This work was completed in December 1982. The coastal analyses for this revised study were performed by Ott Water Engineers, Inc., for FEMA, under Contract No. EMW-83-C-1175. This work was completed in August 1984.

cited responsible party - publisher

organisation Name  Federal Emergency Management Agency

Contact information

Address

, Washington, D.C.

cited responsible party - originator

organisation Name  Federal Emergency Management Agency

source

source description  Source Contribution: Spatial and attribute information for cross sections, station start descriptions, general structures, and surface water features.Source Type Paper

representative resolution scale:

Scale denominator: 12000

source citation

Title Flood Insurance Study, Monterey County, CA (Unincorporated Areas)

publication  Date   1986-08-05

presentationForm  MAP AND REPORT

other Citation Details  The FIS and FIRM are the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). This DFIRM includes data previously published by FEMA in the following Flood Insurance Study: Monterey County, CA (Unincorporated Areas), Effective date: 19860805.

cited responsible party - publisher

organisation Name  Federal Emergency Management Agency

Contact information

Address

, Washington, D.C.

cited responsible party - originator

organisation Name  Federal Emergency Management Agency

source

source description  Source Contribution: Spatial and attribute information for cross sections, station start descriptions, BFEs, and surface water features.Source Type Paper

representative resolution scale:

Scale denominator: 12000

source citation

Title Flood Insurance Study, Monterey County, CA (Unincorporated Areas)

publication  Date   1991-09-27

presentationForm  MAP AND REPORT

other Citation Details  The FIS and FIRM are the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). This DFIRM includes data previously published by FEMA in the following Flood Insurance Study: Monterey County, CA (Unincorporated Areas), Effective date: 19910927.

cited responsible party - publisher

organisation Name  Federal Emergency Management Agency

Contact information

Address

, Washington, D.C.

cited responsible party - originator

organisation Name  Federal Emergency Management Agency

source

source description  Source Contribution: Spatial and attribute information for floodplain information.Source Type Paper

representative resolution scale:

Scale denominator: 12000

source citation

Title Flood Insurance Study, City of Soledad, CA

publication  Date   1984-12-17

presentationForm  MAP AND REPORT

other Citation Details  The FIS and FIRM are the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). This DFIRM includes data previously published by FEMA in the following Flood Insurance Study: City of Soledad, CA, Effective date: 19840515.

cited responsible party - publisher

organisation Name  Federal Emergency Management Agency

Contact information

Address

, Washington, D.C.

cited responsible party - originator

organisation Name  Federal Emergency Management Agency

AbsoluteExternalPositionalAccuracy

name Of Measure Horizontal Positional Accuracy Report

evaluation Method Description  The DFIRM Database consists of countywide vector files and associated attributes produced in conjunction with the hardcopy FEMA FIRM. The published effective FIRM and DFIRM are issued as the official designation of the SFHAs. As such they are adopted by local communities and form the basis for administration of the NFIP. For these purposes they are authoritative. Provisions exist in the regulations for public review, appeals and corrections of the flood risk information shown to better match real world conditions. As with any engineering analysis of this type, variation from the estimated flood heights and floodplain boundaries is possible. Details of FEMA's requirements for the FISs and flood mapping process that produces these data are available in the Guidelines and Specifications for Flood Hazard Mapping Partners. Horizontal accuracy was tested by manual comparison of source graphics with hardcopy plots and a symbolized display on an interactive computer graphic system. Independent quality control testing of FEMA's DFIRM database was also performed.

AbsoluteExternalPositionalAccuracy

name Of Measure Vertical Positional Accuracy Report

evaluation Method Description  The DFIRM Database consists of countywide vector files and associated attributes produced in conjunction with the hardcopy FEMA FIRM. The published effective FIRM and DFIRM maps are issued as the official designation of the SFHAs. As such they are adopted by local communities and form the basis for administration of the NFIP. For these purposes they are authoritative. Provisions exist in the regulations for public review, appeals and corrections of the flood risk information shown to better match real world conditions. As with any engineering analysis of this type, variation from the estimated flood heights and floodplain boundaries is possible. Details of FEMA's requirements for the FISs and flood mapping process that produces these data are available in the Guidelines and Specifications for Flood Hazard Mapping Partners. Vertical accuracy was tested by manual comparison of source graphics with hardcopy plots and a symbolized display on an interactive computer graphic system. Independent quality control testing of FEMA's DFIRM database was also performed.

Completeness Commission

evaluation Method Description  Data contained in the DFIRM Database files reflect the content of the source materials. Features may have been eliminated or generalized on the source graphic, due to scale and legibility constraints. With new mapping, FEMA plans to maintain full detail in the spatial data it produces. However, older information is often transferred from existing maps where some generalization has taken place. Flood risk data are developed for communities participating in the NFIP for use in insurance rating and for floodplain management. Flood hazard areas are determined using statistical analyses of records of river flow, storm tides, and rainfall; information obtained through consultation with the communities; floodplain topographic surveys; and hydrological and hydraulic analysis. Both detailed and approximate analyses are employed. Generally, detailed analyses are used to generate flood risk data only for developed or developing areas of communities. For areas where little or no development is expected to occur, FEMA uses approximate analyses to generate flood risk data. Typically, only drainage areas that are greater than one square mile are studied.

Completeness Omission

evaluation Method Description  Data contained in the DFIRM Database files reflect the content of the source materials. Features may have been eliminated or generalized on the source graphic, due to scale and legibility constraints. With new mapping, FEMA plans to maintain full detail in the spatial data it produces. However, older information is often transferred from existing maps where some generalization has taken place. Flood risk data are developed for communities participating in the NFIP for use in insurance rating and for floodplain management. Flood hazard areas are determined using statistical analyses of records of river flow, storm tides, and rainfall; information obtained through consultation with the communities; floodplain topographic surveys; and hydrological and hydraulic analysis. Both detailed and approximate analyses are employed. Generally, detailed analyses are used to generate flood risk data only for developed or developing areas of communities. For areas where little or no development is expected to occur, FEMA uses approximate analyses to generate flood risk data. Typically, only drainage areas that are greater than one square mile are studied.

ConceptualConsistency

measure Description  When FEMA revises an FIS, adjacent studies are checked to ensure agreement between flood elevations at the boundaries. Likewise flood elevations at the confluence of streams studied independently are checked to ensure agreement at the confluence. The FIRM and the FIS are developed together and care is taken to ensure that the elevations and other features shown on the flood profiles in the FIS agree with the information shown on the FIRM. However, the elevations as shown on the FIRM are rounded whole-foot elevations. They must be shown so that a profile recreated from the elevations on the FIRM will match the FIS profiles within one half of one foot.