{{Use American English|date=July 2025}} {{singlesource|date=February 2025}} {{Use mdy dates|date=February 2025}} {{Infobox body of water | name = Fort Cobb Reservoir | image = Fortcobblake-1.jpg | caption = | image_bathymetry = | caption_bathymetry = | location = Caddo County, Oklahoma | coords = {{coord|35|12|N|98|29|W |region:US-OK_type:waterbody |display=inline,title}} | lake_type = reservoir | inflow = Cobb Creek, Lake Creek | outflow = | catchment = | basin_countries = United States | length = | width = | area = {{convert|4000|acre|abbr=on}} | depth = | max-depth = | volume = {{convert|143700|acre.ft|m3}} | residence_time = | shore = {{convert|45|mi|abbr=on}} | elevation = {{convert|1342|ft}} | islands = | cities = Fort Cobb, Oklahoma<br>Carnegie, Oklahoma <!-- Map --> | pushpin_map = Oklahoma#USA | pushpin_label_position = | pushpin_map_alt = Location of Fort Cobb Reservoir in Oklahoma, USA. | pushpin_map_caption = <!-- Below --> | website = | reference = }} thumb|View of Fort Cobb Dam from lake

'''Fort Cobb Reservoir''' (also called Fort Cobb Lake) is a reservoir located in Caddo County in the U.S. state of Oklahoma. It impounds the waters of Cobb Creek (joining from the west),<ref>{{cite web|url= https://www.google.com/maps/place/Cobb+Creek/@35.2350646,-98.5537898,17.06z/data=!4m5!3m4!1s0x87ac36001d06fa85:0x66fdb9e765cfd8b4!8m2!3d35.318157!4d-98.6271016 |title= Cobb Creek (focus on joinder with Fort Cobb Lake)| publisher=Google Maps|accessdate=August 4, 2021}}</ref><ref>{{cite web|url= https://www.google.com/maps/place/Fort+Cobb+Lake/@35.1955826,-98.5355189,12.38z/data=!4m5!3m4!1s0x87adb4a64f17f317:0xfe485be3f6a2d69e!8m2!3d35.1886287!4d-98.4691567 |title=Fort Cobb Lake, Oklahoma| publisher=Google Maps|accessdate=August 4, 2021}}</ref> Lake Creek (joining from the north),<ref>{{cite web|url= https://www.google.com/maps/place/Lake+Creek/@35.2599191,-98.5380633,13.69z/data=!4m5!3m4!1s0x87ac35a77d6eadb5:0x84b64e870f11835a!8m2!3d35.2965247!4d-98.5240438 |title=Lake Creek, Oklahoma|publisher=Google Maps|accessdate=August 7, 2021}}</ref> and Willow Creek (joining from the northeast).<ref>{{cite web|url= https://www.google.com/maps/place/Willow+Creek/@35.2280024,-98.4780027,15.31z/data=!4m5!3m4!1s0x87adca87c2d22fc9:0x61b5eb332c89fdfe!8m2!3d35.2566774!4d-98.4554434 |title=Willow Creek, Oklahoma|publisher=Google Maps|accessdate=August 7, 2021}}</ref> The lake covers approximately {{convert|4,000|acre|km2}} of water and {{convert|45|mi|km|0|abbr=on}} of shoreline. Its drainage area is {{convert|285|mi2|km2}}. It was constructed in 1958. The towns of Carnegie, Fort Cobb, and Eakly are located nearby.

Fort Cobb Dam is on Cobb Creek about {{convert|5|mi|km}} north of Fort Cobb, and roughly {{convert|5|mi|km}} above the confluence of Cobb Creek with the Washita River. The dam is a zoned earthfill structure containing 3,569,185&nbsp;cubic yards (2,729,000&nbsp;m<sup>3</sup>) of embankment. The crest width is {{convert|30|ft|m}}, and the crest length is {{convert|9,900|ft|km}}. The structural height of the dam is {{convert|122|ft|m}}.

Fort Cobb Reservoir has a total capacity of {{convert|143740|acre.ft|m3|lk=in}} and covers an area of {{convert|5956|acre|km2}} at top of flood pool level. The uncontrolled morning-glory spillway in the left abutment consists of a concrete intake structure, concrete conduit, and concrete chute and stilling basin.

The Fort Cobb Reservoir is part of the Washita Basin Project of the Bureau of Reclamation, which also includes Foss Reservoir on the Washita River in Custer County, along with numerous small flood-control structures on creeks and streams. Municipal and industrial water is supplied to the city of Anadarko and Western Farmers Electric Cooperative through the Anadarko Aqueduct which begins at the Fort Cobb Reservoir.<ref>{{Cite web |url=http://www.usbr.gov/projects/Project.jsp?proj_Name=Washita%20Basin%20Project |title=Washita Basin Project. Retrieved on 2016-10-07 |access-date=2016-10-07 |archive-url=https://web.archive.org/web/20160303202649/http://www.usbr.gov/projects/Project.jsp?proj_Name=Washita%20Basin%20Project |archive-date=2016-03-03 |url-status=dead }}</ref>

== Recreation and fish and wildlife == {{unreferencedsect|date=February 2025}} Fort Cobb Reservoir provides over {{convert|2,000|acre|km2}} of land and some {{convert|2,300|acre|km2}} of water surface areas for recreation and includes {{convert|1,800|acre|km2}} of land and {{convert|1,800|acre|km2}} of water surface area for wildlife management. This reservoir provides some {{convert|45|mi|km|0|abbr=on}} of shoreline at top of conservation pool. The recreation areas are administered by the Oklahoma Tourism and Recreation Department and the wildlife management area is administered by the Oklahoma Department of Wildlife Conservation. Since reservoir releases are primarily for municipal and industrial demands and flood control, the reservoir does not normally experience drastic drawdowns.

The primary fish species include white and smallmouth bass, channel catfish, walleye, bluegill, bullhead, saugeye and crappie.

The lake offers five RV campgrounds, one RV & Tent campground and four tent campgrounds on the southeast and southwest area of Fort Cobb Lake. Fort Cobb State Park and the wildlife management areas of the lake.

== References == {{reflist}}

== External links == * [http://www.travelok.com/listings/view.profile/id.2821 Fort Cobb Reservoir on TravelOK.com] Official Oklahoma Tourism Dept. site * [http://www.usbr.gov/projects/Facility.jsp?fac_Name=Fort+Cobb+Dam&groupName=Overview Fort Cobb Dam - Oklahoma] {{Webarchive|url=https://web.archive.org/web/20150905103038/http://www.usbr.gov/projects/Facility.jsp?fac_Name=Fort+Cobb+Dam&groupName=Overview |date=2015-09-05 }} * [https://web.archive.org/web/20160303202649/http://www.usbr.gov/projects/Project.jsp?proj_Name=Washita%20Basin%20Project Washita Basin Project - US Bureau of Reclamation] * {{cite gnis|id=1092954|name=Fort Cobb Reservoir|accessdate=2009-05-03}} * [https://web.archive.org/web/20121024013411/http://www.library.okstate.edu/okmaps/ Oklahoma Digital Maps: Digital Collections of Oklahoma and Indian Territory] * [https://www.swt-wc.usace.army.mil/FCOB.lakepage.html] FTCO2 : Ft. Cobb Lake, OK access date=2019-03-18

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Category:Dams completed in 1958 Category:Reservoirs in Oklahoma Category:Protected areas of Caddo County, Oklahoma Category:Dams in Oklahoma Category:United States Bureau of Reclamation dams Category:Bodies of water of Caddo County, Oklahoma