Check Dams 1 : A small rock or concrete structure generally placed laterally across steep ditches for the purpose of reducing the velocity in the ditch
Federal Emergency Management Agency (FEMA), Flood Hazard Mitigation Handbook (FEMA Hazard Mitigation Handbook Series - Helping People before, during and after disasters), Appendix B: Glossary & Index of Flood Damage Keywords, Washington D.C., USA 2002. http://www.conservationtech.com/FEMA-WEB/FEMA-subw eb-flood/01-06-FLOOD/8-Appendices/appendix-B.htm, (ND/ Flood - Amer) {62}