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Price Indexes and Discount Rates | NRCS Economics

Price Index with Web Sources

Quick spreadsheet of the most common indexes and discount rates (xlsx, 93 KB) Updated Monthly
Historic Normalized Prices for use by Federal agencies in water and related land resource planning
CPI: 1913 to current
ENR: 1908 to current Engineering
Historic Water Resource Project Discount Rates
The FY2021 Water Resource Project Discount Rate is 2.5%.  
OMB Circular No. A-94, Discount Rates For Cost-Effectiveness, Lease Purchase, and Related Analyses.
OMB Circular No. A-94, APPENDIX C (Revised December,  2020), Discount Rates For Cost-Effectiveness, Lease Purchase, and Related Analyses. Use 0.8% for all non - PL566 watershed analysis including 2021 payment schedules and other analysis.
OMB Circular No. A-4 Regulatory Analysis should use 7%, with 3% and 10% for sensitivity analysis.
Land Values for all US States and Counties 1850 to 2021.  Can be used for indexing older Ag. Damages/Benefits in Older Watershed Projects for EWP and Rehab. 
Recreational and Water Quality Benefits
NRCS Financial Functions, Investments & Retirement Tools and Training

Agricultural Prices and Indexes are available through the National Agricultural Statistics Service Home Page.  The direct link is to Agricultural Prices.  Historical data is easily assessable from

The BEA Regional Projections, 1969 to 2045 spreadsheet (xls, 3.88 MB) (formerly OBERS) projections are available.  This spreadsheet includes employment, earnings, and gross sector production by industrial sector, by state and MSA annually 1969 to 1993, plus forecasts through 2045. Some items, like content (not buildings) flood damages, can include future increases based on these GDP type projections. BEA has since discontinued their Regional Projections Program: Discontinuation of the Regional Projections Program. But many older NRCS projects used them.

Instructions on the use of these regional projections for estimating future flood damages are included in Principles and Guidelines for Water Resource Projects,(PDF, 1.22MB) section 2.4.11(c), Pages 36-37 and page 47.

Construction Costs Indexes include:

NRCS Economics Official Directives