HEC-HMS Technical Reference Manual Diversion Modeling Current: Diversion Modeling References PDF Download PDF Download page Diversion Modeling References. Current page All pages Diversion Modeling References Bureau of Reclamation (1987). Design of small dams. U.S. Dept. of the Interior, Washington, D.C.Soil Conservation Service (1985). Earth dams and reservoirs, Technical Release 60. USDA, Springfield, VA.USACE (1990). Hydraulic design of spillways, EM 1110-2-1603. Office of Chief of Engineers, Washington, DC.USACE. HEC-RAS user's manual. Hydrologic Engineering Center, Davis, CA. ×