Aquilla Lake

Aquilla Lake
Aquilla Dam and Lake
Location of Aquilla Lake in Texas, USA.
Location of Aquilla Lake in Texas, USA.
Aquilla Lake
Location of Aquilla Lake in Texas, USA.
Location of Aquilla Lake in Texas, USA.
Aquilla Lake
LocationHill County, Texas
Coordinates31°54′34″N 97°12′12″W / 31.90944°N 97.20333°W / 31.90944; -97.20333
Typereservoir
Primary inflowsAquilla Creek, Hackberry Creek
Primary outflowsAquilla Creek
Catchment area255 sq mi (660 km2)
Basin countriesUnited States
Surface area3,280 acres (1,330 ha)
Average depth59.5 ft (18.1 m)
Water volume54,400 acre⋅ft (67,100,000 m3) (normal conservation pool)
146,000 acre⋅ft (180,000,000 m3) (flood pool)
Surface elevation537 ft (163.7 m) (normal conservation pool)
556 ft (169.5 m) (flood pool)

Aquilla Lake is an artificial lake (reservoir) in Hill County, Texas, USA. The dam was constructed by the U.S. Army Corps of Engineers. The dam is part of the overall flood control project in the Brazos River basin. The lake is located approximately 23 miles (37 km) north of Waco, Texas, and directly north of the town of Aquilla.

The dam was built and is owned by the U.S. Army Corps of Engineers. The lake is formed by an earthfill dam with a crest length of 11,890 feet (3,624 m) and a top width of 38 feet (11.6 m). A reinforced concrete inlet structure near the center of dam houses the flood-control gates and operating equipment. Closure of the dam began March 20, 1982, and the dam was completed in January 1983. Deliberate impoundment began April 29, 1983. The lake was built for water supply, flood control, and recreation purposes. Figures given herein represent total contents. Data regarding the dam and lake are given in the following table (USGS data):

  Elevation Capacity
(ft) (m) (acre-feet) (million m³)
Top of dam 582.5 177.6    
Spillway crest (uncontrolled) 564.5 172.1 213,700 263.6
Top of flood-control pool 556.0 169.5 146,000 180.1
Top of conservation pool 537.5 163.8 52,400 64.6
Invert, lowest gated outlet 503.0 153.3 932 1.1
Record maximum (1991-12-23) 551.9 168.2 119,000 146.8
Record minimum (1983-10-10) 511.3 155.8 4,600 5.7

Recreational activities on the lake include boating, fishing, hunting, and wildlife viewing.