# Bonny Dam

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**Bonny Dam** (National ID # CO01300) is a dam in [Yuma County, Colorado](/source/Yuma_County,_Colorado), in the eastern part of the state.

The earthen dam was constructed between 1948 and 1951 by the [United States Bureau of Reclamation](/source/United_States_Bureau_of_Reclamation), with a height of 158 feet (48 m) and 9,200 feet (2,800 m) long at its crest.[1] It impounds the South Fork of the [Republican River](/source/Republican_River) for flood control, irrigation storage and recreation, as part of the Bureau's extensive [Pick-Sloan Missouri Basin Program](/source/Pick-Sloan_Missouri_Basin_Program). The dam is owned and operated by the Bureau.

The reservoir it creates, **Bonny Reservoir**, was drained in 2011. It formerly had a water surface area of over 2,000 acres (810 ha), a maximum capacity of 170,160 acre.ft, and a shoreline of about 15 miles (24 km).[2][3] All water was released downstream to flow across the Kansas state border, about 6 miles (10 km) to the east, to satisfy a May 2003 [United States Supreme Court](/source/United_States_Supreme_Court) decision on a dispute arising from the Republican River Compact.[4]

In September and October 2011, Bonny Lake was drained and many of the [Bonny Lake State Park](/source/Bonny_Lake_State_Park)'s services were eliminated, including the fishery and the visitors' center. The dam structure remains. The park is now being operated as part of the South Republican River State Wildlife Area.[5][6]

## See also

- [List of largest reservoirs of Colorado](/source/List_of_largest_reservoirs_of_Colorado)

## References

1. Team, Reclamation Web. ["Dam details - Bonny Dam - Bureau of Reclamation"](https://web.archive.org/web/20160818121235/http://www.usbr.gov/projects/Facility.jsp?fac_Name=Bonny%20Dam&groupName=Dimensions). Archived from [the original](http://www.usbr.gov/projects/Facility.jsp?fac_Name=Bonny%20Dam&groupName=Dimensions) on 2016-08-18. Retrieved 2016-07-24.

1. ["Recreation.gov recreation area details - Bonny Reservoir (Bonny Lake State Park) - Recreation.gov"](http://www.recreation.gov/recAreaDetails.do?contractCode=NRSO&recAreaId=48&contractCode=129)

1. Team, Reclamation Web. ["Project details - Armel Unit - Bureau of Reclamation"](https://web.archive.org/web/20120925143928/http://www.usbr.gov/projects/Project.jsp?proj_Name=Armel%20Unit). Archived from [the original](http://www.usbr.gov/projects/Project.jsp?proj_Name=Armel%20Unit) on 2012-09-25. Retrieved 2012-08-17.

1. ["Archived copy"](https://web.archive.org/web/20130606223135/http://www.ksda.gov/includes/document_center/interstate_water_issues/RRC_Docs/FinalArbitrationDecision-LegalIssues.pdf). Archived from [the original](http://www.ksda.gov/includes/document_center/interstate_water_issues/RRC_Docs/FinalArbitrationDecision-LegalIssues.pdf) on 2013-06-06. Retrieved 2012-08-17.

1. ["Colorado's Bonny Lake State Park Loses its Lake"](https://web.archive.org/web/20120406045914/http://www.campoutcolorado.com/index.php/2012/03/03/colorados-bonny-lake-state-park-loses-its-lake/). 2012-03-03. Archived from [the original](http://www.campoutcolorado.com/index.php/2012/03/03/colorados-bonny-lake-state-park-loses-its-lake/) on 2012-04-06. Retrieved 2012-04-15.

1. ["Colorado Parks & Wildlife - Parks"](https://web.archive.org/web/20120828004339/http://www.parks.state.co.us/Parks/BonnyLake/Pages/BonnyLakeHome.aspx). Archived from [the original](http://www.parks.state.co.us/Parks/BonnyLake/Pages/BonnyLakeHome.aspx) on 2012-08-28.

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Adapted from the Wikipedia article [Bonny Dam](https://en.wikipedia.org/wiki/Bonny_Dam) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Bonny_Dam?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.