Department of Water Resources California Levee Database (CLD) An ongoing Initiative to Collect and Catalog Data for California’s Levees and Flood Control

Department of Water ResourcesDepartment of Water ResourcesCalifornia Levee Database (CLD)California Levee Database (CLD)

An ongoing Initiative to Collect and Catalog An ongoing Initiative to Collect and Catalog Data for California’s Levees and Flood Control Structures Data for California’s Levees and Flood Control Structures

byby

Floodplain Management Branch.Floodplain Management Branch.

Purpose Purpose ““Better Understanding of and Reducing Better Understanding of and Reducing

Risks from Reasonably Foreseeable Risks from Reasonably Foreseeable Flooding” (Floodplain Management Flooding” (Floodplain Management Task Force Report)Task Force Report) Levees play critical role in the StateLevees play critical role in the State Levee risk not well knownLevee risk not well known

Influenced by Paterno decisionInfluenced by Paterno decision Greater political focusGreater political focus

Other potential usesOther potential uses Mapping, project planningMapping, project planning Inspections, maintenanceInspections, maintenance Emergency managementEmergency management Critical infrastructureCritical infrastructure

National interest in projectNational interest in project USACEUSACE FEMAFEMA

Fundamental BenefitsFundamental Benefits

Database definition of a levee (core attributes)Database definition of a levee (core attributes)

Current and searchable statewide inventoryCurrent and searchable statewide inventory

Centralize data storageCentralize data storage

Establishment of unique identification of flood Establishment of unique identification of flood control segments and systemscontrol segments and systems

Provide framework for management of related Provide framework for management of related informationinformation

HistoryHistory 1997 initial centerlines were created through 1997 initial centerlines were created through

the combined efforts of the combined efforts of USACEUSACE FEMAFEMA OESOES

2005 2005 Initial data collection with funding from Initial data collection with funding from DWR & FEMADWR & FEMA Technical Resource Pilot Project Technical Resource Pilot Project

(Santa Clara)(Santa Clara) 2006 2006

Historic geotechnical boring location collectionHistoric geotechnical boring location collection Web application developmentWeb application development Technical Resource data collectionTechnical Resource data collection Continued data collectionContinued data collection Interagency coordinationInteragency coordination

20072007 Data sharing managementData sharing management NLD/MLI Data integration/model NLD/MLI Data integration/model

developmentdevelopment Web application developmentWeb application development Technical Resource data collectionTechnical Resource data collection

20082008 Web application developmentWeb application development Attribution data collectionAttribution data collection

20092009 Align with NLD data modelAlign with NLD data model Integrate data from FEMA MLIIntegrate data from FEMA MLI Project levee attribute refinementProject levee attribute refinement

20102010 Non-project levee data collectionNon-project levee data collection ArcServer Web viewer (CLASIS)ArcServer Web viewer (CLASIS) CVFED, SPFC, CVFPP supportCVFED, SPFC, CVFPP support SPFC footprint refinementSPFC footprint refinement NULE document integrationNULE document integration

Initial Data SourcesInitial Data Sources Office of Emergency Service (OES)Office of Emergency Service (OES) DWRDWR

Project leveesProject levees Delta leveesDelta levees

USACEUSACE Comprehensive StudyComprehensive Study

FEMAFEMA FIRMsFIRMs DFIRMsDFIRMs FLISFLIS

Local agenciesLocal agencies Cities, countiesCities, counties Flood control districtsFlood control districts Reclamation districtsReclamation districts Levee maintenance districtsLevee maintenance districts

Public mapsPublic maps USGS 7.5 min topoUSGS 7.5 min topo USGS digital orthophotoUSGS digital orthophoto Other maps, aerial photosOther maps, aerial photos GoogleGoogle

Levee Database DesignLevee Database Design

Data stored at CDEC on a Unix serverData stored at CDEC on a Unix server

DWR’s Levee Database is stored in an Oracle 10g DWR’s Levee Database is stored in an Oracle 10g Relational Database Management System (RDBMS)Relational Database Management System (RDBMS)

Access to spatial features is conducted via ESRI’s ArcSDE Access to spatial features is conducted via ESRI’s ArcSDE (Spatial Data Engine)(Spatial Data Engine)

Users interface spatial and tabular data through CLASIS Users interface spatial and tabular data through CLASIS (web based mapping website) or directly through ESRI’s (web based mapping website) or directly through ESRI’s ArcMap softwareArcMap software

Technical Specification

Database ManagementDatabase Management

CLD managed by Floodplain Management BranchCLD managed by Floodplain Management Branch

Current and previous CLD versions are stored at CDECCurrent and previous CLD versions are stored at CDEC

Periodic updates being sent to CDEC loading into the master Periodic updates being sent to CDEC loading into the master Oracle databaseOracle database

Access is maintained through CDEC Access is maintained through CDEC

AccomplishmentsAccomplishmentsAccomplishmentsAccomplishmentsNLD Surveyed Levee Centerlines IncludedNLD Surveyed Levee Centerlines Included

Using the same data model as NLD and MLIUsing the same data model as NLD and MLI

Coordinated with FEMA and USACE to data shareCoordinated with FEMA and USACE to data share

Developed process, procedures & scripts for importing and exporting Developed process, procedures & scripts for importing and exporting data between the NLD & CLDdata between the NLD & CLD

Created schedule for data exchange between agenciesCreated schedule for data exchange between agencies

Levee Data Model Interagency Design Levee Data Model Interagency Design CollaborationCollaboration

AccomplishmentsAccomplishmentsAccomplishmentsAccomplishments

Work with DWR Northern District and CVFPP to determine SPFC Work with DWR Northern District and CVFPP to determine SPFC footprintfootprint

Coordinated USACE to ensure both agencies are in agreementCoordinated USACE to ensure both agencies are in agreement

Developed process, procedures & scripts for importing and exporting Developed process, procedures & scripts for importing and exporting data between the NLD & CLDdata between the NLD & CLD

Submitted changes and recommendations to CVFPP for approval by Submitted changes and recommendations to CVFPP for approval by DWR legal and the Central Valley Flood Protection BoardDWR legal and the Central Valley Flood Protection Board

State Plan of Flood Control (SPFC)State Plan of Flood Control (SPFC)


Work with counties/agencies outside the Central ValleyWork with counties/agencies outside the Central Valley

Collect information on levees and levee-like structuresCollect information on levees and levee-like structures

Improve data and fill-in blanks in the databaseImprove data and fill-in blanks in the database

Establish relationships with agencies for exchange of dataEstablish relationships with agencies for exchange of data

Improve levee alignment of non-project leveesImprove levee alignment of non-project levees

Data Collection for Non-Project LeveesData Collection for Non-Project Levees


Integrate data from MLI in to the CLDIntegrate data from MLI in to the CLD

Adjust/Improve alignments of non-federal leveesAdjust/Improve alignments of non-federal levees

Integrate data about certification and accreditationsIntegrate data about certification and accreditations

Include information about Provisionally Accredited Levees (PAL)Include information about Provisionally Accredited Levees (PAL)

Refine data exchange process to streamline data transfer Refine data exchange process to streamline data transfer

Integration of FEMA Integration of FEMA Midterm Levee Inventory (MLI)Midterm Levee Inventory (MLI)


California Levee and Stream Information California Levee and Stream Information System (CLASIS)System (CLASIS)


Import documents collected for ULE/ NULE programs into the CLDImport documents collected for ULE/ NULE programs into the CLD

Link documents to levee segmentsLink documents to levee segments

Allows documents to be searched by levee segmentAllows documents to be searched by levee segment

Actual documents can be viewed through media tableActual documents can be viewed through media table

Integration of NULE Research DocumentsIntegration of NULE Research Documents


Active Use of CLDActive Use of CLD

Several Projects are using data from the CLD or data Several Projects are using data from the CLD or data collected in conjunction with the levee database effort:collected in conjunction with the levee database effort:

USACE NLDUSACE NLD FEMA MLIFEMA MLI DWR Urban levee program (ULE)DWR Urban levee program (ULE) DWR Non-Urban levee program (NULE)DWR Non-Urban levee program (NULE) Central Valley Floodplain Evaluation and Delineation Central Valley Floodplain Evaluation and Delineation

Program (CVFED)Program (CVFED) Central Valley Flood Protection Plan (CVFPP)Central Valley Flood Protection Plan (CVFPP) State Plan of Flood Control (SPFC)State Plan of Flood Control (SPFC) Non-project levee data collection outside central valleyNon-project levee data collection outside central valley

Proposed ActivitiesProposed Activities Use as an emergency management tool during flood Use as an emergency management tool during flood

eventsevents Use as base for levee related document managementUse as base for levee related document management Coordinate with FEMA RiskMAP programCoordinate with FEMA RiskMAP program Outreach to other State departments and the publicOutreach to other State departments and the public Web mapping application refinement Web mapping application refinement Integrate borehole information from ULE/NULEIntegrate borehole information from ULE/NULE Work with USACE Silver Jackets ProgramWork with USACE Silver Jackets Program Define data sharing policies and finalize agreement Define data sharing policies and finalize agreement