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{{Infobox dam
| name = Banning Dam<br />''Lake Eleanor Dam''
| official_namename_official =
| image = Banning Dam & Lake Eleanor, Westlake Village,= CaliforniaLake_eleanor_thousand_oaks.jpg
| image_size =
| image_caption = Banning Dam and= Lake Eleanor as seen from above
| image_alt =
| location_map = California
| location_map_size =
| location_map_width =
| location_map_caption =
| location_map_text =
| coordinates = {{coord|34|08|07|N|118|51|06|W|type:landmark|display=inline,title}}
| lat_d = 34
| lat_mcountry = 08United States
| localelocation = [[Ventura County, California]]▼
| lat_s = 07
| lat_NSstatus = NO
| construction_began = {{Start date and age|1881}}▼
| long_d = 118
| cost opening = $500{{start date and (age|1889)}}▼
| long_m = 51
| long_sdemolished = 06 =
| as_ofcost = $500 (1889)▼
| long_EW = W
| owner = Conejo Open Space Conservation Agency
| coordinates_type = type:landmark
| dam_type = Arch, constant-radius
| coordinates_display= inline,title
| height dam_height = {{convert|3537|ft|m|abbr=on}}▼
| coordinates_ref =
| dam_height_thalweg =
| country = [[United States]]
| dam_height_foundation=
▲| locale = [[Ventura County, California]]
| status dam_length = {{convert|140|ft|m|abbr= Oon}}
| dam_width_crest =
▲| construction_began = {{Start date|1881}}
| open dam_width_base =
| demolisheddam_volume =
| dam_elevation_crest =
▲| cost = $500 (1889)
| owner dam_crosses = Open space
| type spillway_count = Arch, constant-radius
| base_width spillway_type =▼
▲| height = {{convert|35|ft|m|abbr=on}}
| height_thalweg spillway_capacity =
| extra res_name = Lake Eleanor▼
| height_foundation =
| res_capacity_total =
| length = {{convert|140|ft|m|abbr=on}}
| crest_width res_capacity_active =
| res_capacity_inactive=
▲| base_width =
| curve_radiusres_catchment =
| volume res_surface =
| crest_elevationres_elevation =
| crosses res_max_depth =
| spillways res_max_length =
| spillway_typeres_max_width =
| spillway_capacityres_tidal_range =
| reservoir plant_operator = Lake Eleanor
| plant_commission =▼
| reservoir_capacity =
| active_capacity plant_decommission =
| inactive_capacityplant_type =
| tidal_range plant_turbines =▼
| reservoir_catchment=
| reservoir_surfaceplant_capacity =
| plant_annual_gen =
| reservoir_elevation=
| website =▼
| reservoir_max_depth=
| reservoir_lengthextra =
| reservoir_max_width=
| hydraulic_head =
▲| tidal_range =
| plant_owner =
| plant_operator =
▲| plant_commission =
| plant_licence_exp =
| plant_decommission =
| plant_type =
| turbines =
| installed_capacity =
| max_planned_cap =
| capacity_factor =
| average_annual_gen =
| net_generation =
▲| website =
▲| as_of =
▲| extra =
}}
 
'''Lake Eleanor''' (National ID # CA00737), also known as '''Banning Dam''', is an {{convert|8|acre|adj=on}} freshwater lake ([[gravity dam]]) near [[Westlake Village, California|Westlake Village]] in [[Thousand Oaks, California]]. The lake lies within the {{convert|513|acre|adj=on}} '''Lake Eleanor Open Space''' and was [[Ventura County Historic Landmarks & Points of Interest|Ventura County Historic Landmark]] No. 120 in 1988. It is also designated City of Thousand Oaks Historical Landmark No. 9. Under ownership of [[Conejo Open Space Conservation Agency]] (COSCA), the lake sits in a gorge with sheer cliffs and drops of {{convert|40|–|50|ft|abbr=on}}. An artificial lake, it was first constructed in 1889, and may be the first concrete [[arched dam]] built in California.<ref>{{Cite web|url=https://www.toaks.org/departments/city-manager-s-office/public-information-office/history|title = History &#124; Thousand Oaks, CA}}</ref><ref>{{Cite web|url=https://www.conejovalleyguide.com/welcome/banning-dam-lake-eleanor-dam-in-thousand-oaks-is-a-ventura-county-historical-landmark|title = Banning Dam (Lake Eleanor Dam) in Thousand Oaks is a Ventura County Historical Landmark| date=23 November 2017 }}</ref><ref>https://docs.vcrma.org/images/pdf/planning/programs/chb/Points_of_Interest.pdf (Page 51).</ref><ref>{{Cite web|url=https://www.latimes.com/archives/la-xpm-1997-oct-20-me-44848-story.html|title = Archives|website = [[Los Angeles Times]]| date=20 October 1997 }}</ref>
The '''Banning Dam''' (National ID # CA00737; also known as '''Lake Eleanor Dam''') is a [[gravity dam]] built in 1889, in the [[Santa Monica Mountains]], near present day [[Westlake Village, California|Westlake Village]], in [[Ventura County, California|Ventura County]], [[Southern California]].
 
Although not a major dam, Banning Dam is among the oldest still standing in the state. Nearby [[Sherwood Dam]] dates from {{start date and age|1904|p=y}}. It is less than {{convert|1|mi|km}} east of [[Lake Sherwood, California|Lake Sherwood]].<ref name="google_201106">{{cite web | url=httphttps://maps.google.com/maps?ll=34.135278,-118.851667&spn=0.01,0.01&t=h&q=34.135278,-118.851667 | title=Decker Canyon Road | publisher=Google | work=Google Maps | accessdateaccess-date=June 23, 2011}}</ref> The structure is located within the Lake Eleanor Open Space. At 37 feet high, and 140 feet long at its crest, the dam is privately owned by the local Conejo Open Space Conservation Agency.<ref>{{cite web|url=http://ce-npdp-serv2.stanford.edu/DamDirectory/DamDetail.jsp?npdp_id%3DCA00737 |title=Archived copy |access-date=2012-09-26 |url-status=dead |archive-url=https://web.archive.org/web/20160305082814/http://ce-npdp-serv2.stanford.edu/DamDirectory/DamDetail.jsp?npdp_id=CA00737 |archive-date=2016-03-05 }}</ref>▼
Named for its builder, "Captain" William Banning, it impounds Eleanor Creek to form the recreational '''Lake Eleanor''' (not to be confused with [[Lake Eleanor]] in [[Tuolumne County, California]], also a reservoir).▼
 
==Etymology==
▲Although not a major dam, Banning Dam is among the oldest still standing in the state. Nearby [[Sherwood Dam]] dates from 1904. It is less than {{convert|1|mi|km}} east of [[Lake Sherwood, California|Lake Sherwood]].<ref name="google_201106">{{cite web | url=http://maps.google.com/maps?ll=34.135278,-118.851667&spn=0.01,0.01&t=h&q=34.135278,-118.851667 | title=Decker Canyon Road | publisher=Google | work=Google Maps | accessdate=June 23, 2011}}</ref> The structure is located within the Lake Eleanor Open Space. At 37 feet high, and 140 feet long at its crest, the dam is privately owned by the local Conejo Open Space Conservation Agency.<ref>http://ce-npdp-serv2.stanford.edu/DamDirectory/DamDetail.jsp?npdp_id=CA00737</ref>
▲Named for its builder, "Captain" William Banning, it impounds Eleanor Creek to form the recreational '''Lake Eleanor''' (not to be confused with [[Lake Eleanor]] in [[Tuolumne County, California]], also a reservoir).
 
==History==
[[File:Banning Dam.jpg|thumb|left|250px]]
[[File:Banning Dam & Lake Eleanor, Westlake Village, California.jpg|thumb|right]]
Lake Eleanor was originally constructed as a reliable water source for cattle in the 1880s. Work on the dam began in 1881 and was completed in 1889. Officials drained the reservoir in 1972 arguing it was a hazard, however, hundreds of frogs died and wildlife was consequentially moved to [[Triunfo Creek]] after the drainage.<ref>O’Brien, Tricia (2017). ''Thousand Oaks and Westlake Village (Images of America)''. Arcadia Publishing. Page 97. {{ISBN|9781467125697}}.</ref>
 
The lake was acquired by the Conejo Open Space Conservation Agency (COSCA) in 1986,<ref>{{Cite web|url=http://www.conejo-openspace.org/lake-eleanor.html|title = Lake Eleanor}}</ref> and was designated [[Ventura County Historic Landmarks & Points of Interest|Ventura County Historic Landmark]] No. 120 in May 1988. It was later designated City of Thousand Oaks Historical Landmark No. 9.<ref>https://docs.vcrma.org/images/pdf/planning/programs/chb/Points_of_Interest.pdf (Page 51).</ref><ref>{{Cite web|url=https://www.toaks.org/departments/city-manager-s-office/public-information-office/history|title = History &#124; Thousand Oaks, CA}}</ref>
 
==Ecology==
Lake Eleanor Open Space makes up diverse wildlife habitats and landscapes such as rugged hills, rocky outcrops, marsh habitat, [[coastal sage scrub]], and native oak woodland. The area supports several endangered and rare species of plants and nesting sites for [[hawks]] and other avifauna. Due to its sensitive resources and also the rugged terrain, there is only one trail developed in the open space, which follows the ridge east of Westlake Boulevard, accessed from Denver Springs Drive in Westlake Village, California.<ref>{{Cite web|url=http://www.conejo-openspace.org/lake-eleanor.html|title = Lake Eleanor}}</ref> Another trailhead is located at Highgate Road in Thousand Oaks, California.<ref>{{Cite web|url=https://www.toacorn.com/articles/westlake-hike-offers-lake-views/|title = Westlake hike offers lake views|date = 6 July 2017}}</ref>
 
The 8-acre lake and its surrounding 529 acres of open space are fenced off from the public, in order to create habitat for wildlife species such as the [[Great Blue Heron]].<ref>https://docs.vcrma.org/images/pdf/planning/programs/chb/Points_of_Interest.pdf (Page 51).</ref>
 
==Recreation==
Due to sensitive resources and rough terrain, trails have not been developed in the area. One trail has however been developed following the ridgeline east of Westlake Boulevard. This trail provides views of two additional bodies of water: [[Westlake Lake]] and [[Las Virgenes Reservoir]].<ref>{{Cite web|url=https://www.toacorn.com/articles/westlake-hike-offers-lake-views/|title = Westlake hike offers lake views|date = 6 July 2017}}</ref> The trail, which starts and begins in neighborhoods, can be reached from its trailheads at Highgate Road and Denver Springs Drive. Besides mountain and lake views, the ridgeline trail also offers views of the [[Conejo Valley]] and the [[Santa Monica Mountains]]. A variety of highpoints can be found along the trail, which has a total elevation gain of 500&nbsp;ft.<ref>Riedel, Allen (2011). ''Best Easy Day Hikes Conejo Valley''. Rowman & Littlefield. Pages 64-65. {{ISBN|9780762765812}}.</ref>
 
==See also==
* [[Sherwood Dam]]
* [[Rindge Dam]]
* [[List of dams and reservoirs in California]]
* [[List of lakes in California]]
* [[Westlake Village, California]]
 
==References==
{{reflist}}
 
{{Thousand Oaks, California}}
 
[[Category:Dams in California]]
Line 89 ⟶ 93:
[[Category:Dams completed in 1889]]
[[Category:United States privately owned dams]]
[[Category:1889 establishments in California]]
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