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Flood Damage Assessment Tools

This site contains economic flood damage assessment models developed by NRCS. The older DOS URB1 and ECON2 models are formulated specifically to look at urban and rural flood damages in PL566 sized watersheds. They take flow frequencies and cross sectional rating curves import directly from the NRCS programs, WSP2 and TR20. These programs can also be used with the appropriate USACE programs like HEC2. The current version of ECON2 and URB1 was last revised 1991, and are being replaced with the new Flood Econ program and the USACE HEC-FDA program.

The Hydrologic Engineering Center's Flood Damage Analysis (HEC-FDA) computer program is designed to assist Corps of Engineers study team members in using risk-based analysis methods for flood-damage-reduction studies as required by the Corps (EM 1110-2-1419). The approach explicitly incorporates descriptions of uncertainty of key parameters and functions into project benefit and performance analyses. The following is a description of how HEC-FDA is used in flood-damage-reductions studies during plan development.  Bob Carl (HEC) is the USACE contact with NRCS on this model.  Current software and documentation are available at
http://www.hec.usace.army.mil/software/hec-fda/index.html  CCE Certification of HEC FDA

HEC-FDA has been used by NRCS Economists Lauren Cartwright, (573-876-5015), Kent Hardmeyer (732-537-6055) and Colleen Tennity. In January, 2005, 20 NRCS economists received training on the HEC-FDA model at the USACE Hydrologic Engineering Center in Davis, CA.   Many NRCS watershed staff are now converting to this model.
Bentley Creek, PA HEC-FDA Example files developed by Colleen Tennity.

The NRCS URB1, ECON2, and CARE models have been combined by George Forster at ITC into a CCEinstallation package at fdatools.exe.  Being a CCE installation, you need an administrative login to install fdatools.exe on a CCE machine.  Otherwise you can just download the DOS programs and run them directly in a Command Prompt window.

Plans Of Work (POW) and To-Do Items for Project Evaluations
CA Watershed POW, (XLS, 28KB)
East Locust MO POW, (XLS, 35KB)
Pick Creek MO POW, (DOC, 55KB)
Coon Creek Rehab ND POW, (XLS, 76KB)
Project Planning Chart and POW, (XLS, 26KB)
Work Items Needed for Evaluation of Irrigation Project, (PDF, 402KB)
Work Items Needed for Evaluation of Watershed Protection Project, (PDF, 321KB)
Work Items Needed for Evaluation of Agricultural Flooding, (PDF, 340KB)
Work Items Needed for Evaluation of Urban Flood Damages, (PDF, 318KB)
National Watershed Program Manual (PDF, 2.81MB)
National Watershed Program Handbook (PDF, 80KB)

Other Flood Damage Information Sources

NRCS Flood Control Models and Documentation Downloads

Model Name/Link Model Description NRCS Contact
National Watershed Programs Manual (E-directives) National Watershed Program Manual (PDF, 2.81MB) Ilde Chavez, National Watershed Operations Team Leader, 202-720-7730
MI Rapid Watershed Assessment Tool, (XLS, 1.42MB) CPPE and Rapid Watershed Assessment Tool, (XLS, 1.42MB)

June Moss, MI

Rapid Watershed Assessment Lessons Learned (PPT, 1.78MB) Rapid Watershed Assessment Lessons Learned (PPT, 1.78MB) Jan.Surface
Search for the Elusive 35%; A Sponsor Dilemma (DOC, 83KB) Search for the Elusive 35%; A Sponsor Dilemma (PPT, 5MB) James Featherston
Kansas Emergency Watershed Protection (EWP) Program (PPT, 3.6MB) Kansas Emergency Watershed Protection (EWP) Program (PPT, 3.6MB) Paul Gallagher
Watershed Economics Training (PPT, 58K) Dale Pekar's Watershed Economics Training (PPT, 58K) Dale Pekar
National Economic Development (NED) Plan Requirement affecting Watershed Rehabilitation Projects (PDF, 400KB) National Economic Development (NED) Plan Requirement affecting Watershed Rehabilitation Projects (PDF, 400KB) David Buland
HAZUS HMR3 Flood Model Technical Manual (PDF, 5MB) HAZUS HMR3 Flood Model Technical Manual (PDF, 400KB) George Townsley
fdatools.exe (ZIP, 1.4MB) CCE Installation of NRCS URB1, Econ2, and CARE DOS programs, April, 2006  David Buland
NRCS National Watershed Manual (PDF) 1992 National Watershed Manual as one PDF file David Buland
Part 611 NRCS National Water Resources Handbook for Economics Part 611 NRCS National Water Resources Handbook for Economics (PDF, 855 KB)  
Emergency Watershed Protection EWP Final Rule, 7 CFR Part 624 (PDF)  
National Flood Insurance Program Administration Costs (XLS, 17KB) P&G 2.4.12(b) allows reductions in the administrative costs associated with the NFIP to be claimed as NED benefits in those alternatives which effectively remove properties from the 100-year floodplain.   The attached spreadsheet shows the derivation of the average annual administrative expenses per-policy over the period 2000-2004 of $167 (2007-QII dollar terms, as of August 30, 2007). As far as I can tell, these are the latest published data. Dale Pekar
2007 Flood Damage Analysis Spreadsheet (XLS, 2.8MB)
Older 2005 Flood Damage Spreadsheet  (XLS, 177 KB) 
Excel Spreadsheet Version of the Urb1 Flood Control Model converted by Hal Gordon, NRCS OR. Hal Gordon
Flood Damage Reduction Analysis with HEC-FDA (DOC. 66.5 KB)     U.S. Army Corps of Engineers Workshop (01/05)
     Student Information
 
Economist Role in Water Resource Programs (PPT, 2.7MB) by Bruce Julian, 10/2002  
ECON2 Program
ECON2 Users Manual
Agricultural Flood Water Damage Economic Evaluation (63.3 KB)
Coreona SD Econ2 2007 Input Data (158 KB)
AZ Crop Damage Factors (260 KB)

David Buland
URB1
URB1 Data Development Procedures
URB1 PC Users Manual (1990 version)
URB1 PROGRAM Checklist
Urban Flood Water Damage Economic Evaluation Tool (49.2 KB)
MO Bridge Stage Damage Tables Study
New Mexico Depth Damage Data (622 KB)
USACE Depth Damage Factors.xls (34 KB)
USACE Without Basement Depth Damage Factors.xls (34 KB)
USACE Basement Depth Damage Factors.xls (246 KB)
USACE Commercial Depth Damage Factors.xls (38 KB)



David Buland
DE (ZIP, 86.1 KB) DOS Data Entry Program for Econ2 & URB1  
Damage Survey Report (DSR), OMB #05780030, NRCS-PDM-20, v7/2005,  (PDF, 260 KB)
Flood Damage Commercial and Industrial Interview Form, (PDF)
Flood Damage Residential Properties Interview Form, (PDF)
Flood Damage Transportation and Utilities Interview Form, (PDF)
A Manual Procedure to Estimate Annual Crop and Pasture Flood Damages, (PDF)
Partial Duration Frequency Series in Estimating Floodwater Damages, (PDF)
Economics - Basic Data for Evaluating Floodwater Damages to Crops and Pastures in the Northeast (Using Econ 2) (PDF)
Procedures for Evaluating Flatland Flood Damages, (PDF) David Buland
Bunning-Bereuter-Blumenauer Flood Insurance Reform Act of 2004  
 RocklHouse Creek, KY, Econonomic Appendix, 2007  
 CCE Certification of HEC FDA (DOC, 72KB) David Buland

 

There was an effort from 1998 to 2005 to revise and combine the NRCS URB1 and ECON2 models into the new Flood Econ model.  As of 2007, all IT Work on FloodEcon is officially discontinued.