USACE Guidance

EM 1110-2-1413 (USACE, 2018)
USACE. 2018. Hydrologic Analysis of Interior Areas. EM 1110-2-1413, 24 August 2018. U.S. Army Corps of Engineers, Washington, DC. Supersedes the 1987 edition. Available from USACE Engineer Manuals.

EM 1110-2-1417 (USACE, 1994)
USACE. 1994. Flood-Runoff Analysis. EM 1110-2-1417, 31 August 1994. U.S. Army Corps of Engineers, Washington, DC. Available from USACE Engineer Manuals.

EM 1110-2-1619 (USACE, 2025)
USACE. 2025. Risk Assessment for Flood Risk Management and Coastal Storm Risk Management Studies. EM 1110-2-1619, 29 September 2025. U.S. Army Corps of Engineers, Washington, DC. Appendix C describes the hydrologic engineering management plan (HEMP), and paragraph 6-5 addresses interior drainage facility performance. Supersedes EP 1110-2-9. Available from USACE Engineer Manuals.

EP 1110-2-9 (USACE, 1994)
USACE. 1994. Hydrologic Engineering Studies Design. EP 1110-2-9, 31 July 1994. U.S. Army Corps of Engineers, Washington, DC. Superseded by EM 1110-2-1619 (USACE, 2025), Appendix C.

ER 1105-2-100 (USACE, 2000)
USACE. 2000. Planning Guidance Notebook. ER 1105-2-100, 22 April 2000. U.S. Army Corps of Engineers, Washington, DC. Chapters 1 through 3 superseded by ER 1105-2-103 (USACE, 2023). Available from USACE Engineer Regulations.

ER 1105-2-103 (USACE, 2023)
USACE. 2023. Planning Policy for Conducting Civil Works Planning Studies. ER 1105-2-103, 7 November 2023 (effective 7 December 2023). U.S. Army Corps of Engineers, Washington, DC. Chapter 4 addresses flood risk management. Available from USACE Engineer Regulations.

ER 1165-2-21 (USACE, 1980)
USACE. 1980. Flood Damage Reduction Measures in Urban Areas. ER 1165-2-21, 30 October 1980. U.S. Army Corps of Engineers, Washington, DC. Available from USACE Engineer Regulations.

ECB 2026-1 (USACE, 2026)
USACE. 2026. Incorporating Resilience to Nonstationary Hydrometeorological Conditions in USACE Civil Works Studies, Designs, and Projects. Engineering and Construction Bulletin 2026-1, issued 9 January 2026, expires 9 January 2028. U.S. Army Corps of Engineers, Washington, DC. Available from the Whole Building Design Guide.

Federal and Technical Guidance

Barnes, 1967
Barnes, H.H. (1967). Roughness Characteristics of Natural Channels. Water-Supply Paper 1849. U.S. Geological Survey, Washington, DC.

Cudworth, 1989
Cudworth, A.G., Jr., 1989. Flood Hydrology Manual. U.S. Department of the Interior, Bureau of Reclamation, Denver, CO.

Jennings, 1994
Jennings, M.E., W.O. Thomas, Jr. and H.C. Riggs, 1994. Nationwide Summary of U.S. Geological Survey Regional Regression Equations for Estimating Magnitude and Frequency of Floods for Ungaged Sites. Water-Resources Investigation 94-4002. U.S. Geological Survey, Washington, DC.

MHFD, 2024
Mile High Flood District (MHFD). 2024. "Runoff." Chapter 6 in Urban Storm Drainage Criteria Manual, Volume 1, March 2024. Denver, CO. Section 5 describes the Colorado Urban Hydrograph Procedure (CUHP), which computes Snyder-type time-to-peak and peaking coefficients from catchment imperviousness. The relationships have been recalibrated since this chapter's case study was prepared. Available from Mile High Flood District.

NWS, 1972
National Weather Service, 1972. National Weather Service River Forecast System River Forecast Procedures, NOAA Technical Memo NWS-HYDRO-14. Hydrologic Research Laboratory, Silver Spring, MD.

Rantz, 1971
Rantz, S. E., 1971. Suggested Criteria for Hydrologic Design of Storm-Drainage Facilities in the San Francisco Bay Region, California. Open File Report, U.S. Geological Survey, Menlo Park, CA.

Sauer, 1983
Sauer, V.B., W.O. Thomas, V.B. Stricker, and K.V. Wilson, 1983. Flood Characteristics of Urban Watersheds in the United States. Water Supply Paper 2207. U.S. Geological Survey, Washington, DC.

Sumioka, 1998
Sumioka, S.S., D.L. Kresch, and K.D. Kasnick, 1998. Magnitude and Frequency of Floods in Washington. Water Resources Investigation 97-4277. U.S. Geological Survey, Washington, DC.

Thomas, 2001
Thomas, W.O., Baker, M., Grimm, M.M., and McCuen, R.H., 2001. Evaluation of Flood Frequency Estimates for Ungaged Watersheds. Unpublished manuscript.

Waananen, 1977
Waananen, A.O. and J.R. Crippen, 1977. Magnitude and Frequency of Floods in California. Resource Investigation 77-21. U.S. Geological Survey, Washington, DC.

HEC Software Documentation

📖 User's Manual

How to build and run the HEC-HMS components used in this chapter.

📐 Technical Reference Manual

Theory behind the methods used in this chapter.

🛠️ Tutorials & Guides

Hands-on worked examples with downloadable project files.

📊 HEC-RAS

Computing water surface elevations from HEC-HMS flows, as described under Processing of Results in the case study.

📊 HEC-FDA

Expected annual damage computations, as described in the Flood Risk Management (FRM) Studies.