Numerical Models No Longer Accepted by FEMA for National Flood Insurance Program Usage

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This page lists numerical models no longer accepted by FEMA for National Flood Insurance Program (NFIP) usage. This page is intended for engineers, surveyors, floodplain managers and FEMA mapping partners.

Current Unacceptable Models

Currently Unacceptable Numerical Models
TYPEPROGRAMDEVELOPED BYCOMMENTS
Coastal Models;
Coastal Storm Surges
ODISTIM (1975)Coastal Consultants, Inc.Have not been used for NFIP studies for more than 5 years.
Coastal Models;
Coastal Storm Surges
Northeaster Model
(1978)
Stone & Webster Engineering GroupHave not been used for NFIP studies for more than 5 years.
Coastal Models;
Coastal Storm Surges
FLOW2D
(1975) 1
Resource Analysis, Inc.Have not been used for NFIP studies for more than 5 years.
Coastal Models;
Coastal Wave Effects
GLWRM (1992)U.S. Army Corps of EngineersHave not been used for NFIP studies for more than 5 years.
Hydrologic Models;
Single Event
DBRM 3.0 (1993)Bernard L. Golding, P.E.
Consulting Water Resources Engineer
Orlando, FL
Have not been used for NFIP studies for more than 5 years.
Hydrologic Models;
Single Event
HYMOU.S. Department of Agriculture,
Natural Resources Conservation Service
NRCS is no longer supporting the program.
Hydrologic Models;
Single Event
DR3M
(Oct. 1993)
U.S. Geological SurveyHave not been used for NFIP studies for more than 5 years.
Hydrologic Models;
Single Event
TR-20
(February 1992)
U.S. Department of Agriculture,
Natural Resources
Conservation Service
NRCS is no longer supporting the DOS version of the program.
Hydrologic Models;
Single Event
TR-55
(June 1986)
U.S. Department of Agriculture,
Natural Resources
Conservation Service
NRCS is no longer supporting the DOS version of the program.
Interior Drainage AnalysisHEC-IFH 1.03 and upU.S. Army Corps of EngineersThe U.S. Army Corps of Engineers is no longer supporting the program.
Hydraulic Model;
One-dimensional Steady Flow
WSP2
(October 1993)
U.S. Department of Agriculture,
Natural Resources Conservation Service
NRCS is no longer supporting the program.
Hydraulic Model;
One-dimensional Steady Flow
FLDWY
(May 1989)
U.S. Department of Agriculture,
Natural Resources Conservation Service
NRCS is no longer supporting the program; for past studies done using FLDWY, the user manual is still available from NRCS to help interpret the data.
Hydraulic Model;
One-dimensional Unsteady Flow
UNET 4.0
(Apr. 2001)
US Army Corps of EngineersReplaced by HEC-RAS.
Hydraulic Model;
One-dimensional Unsteady Flow
DAMBRKNational Weather ServiceNWS is no longer supporting the program.
Hydraulic Model;
One-dimensional Unsteady Flow
NETWORK (DWOPER)National Weather ServiceNWS is no longer supporting the program.
Floodway ModelSFDU.S. Army Corps of Engineers / FEMAThe U.S. Army Corps of Engineers / FEMA are no longer supporting the program.
Floodway ModelPSUPROPennsylvania State University /  U.S. Army Corps of Engineers / FEMAPennsylvania State University / U.S. Army Corps of Engineers / FEMA are no longer supporting the program.
Locally Accepted Hydraulic ModelSHEET2D 9Tomasello Consulting Engineers, Inc.Replaced by S2DMM.

 

Nationally and Locally Accepted Models

Return to the Numerical Models Meeting the Minimum Requirements of the National Flood Insurance Program to view the list of nationally and locally accepted models that meet NFIP requirements for flood hazard mapping activities.

Last Updated: 
01/26/2015 - 18:39
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