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| Carter Lake (Colorado) | |
|---|---|
| Name | Carter Lake |
| Location | Larimer County, Colorado, United States |
| Type | Reservoir |
| Basin countries | United States |
| Inflow | Big Thompson River |
| Outflow | Big Thompson River |
| Area | 1,100 acres |
| Max-depth | 120 ft |
| Volume | 20,000 acre·ft |
| Elevation | 5,100 ft |
Carter Lake (Colorado) is a reservoir in Larimer County, Colorado maintained as part of a flood-control and water-supply system in northern Colorado. Created by damming the Big Thompson River by the United States Bureau of Reclamation, it lies near the cities of Loveland, Colorado, Berthoud, Colorado, and Fort Collins, Colorado. The reservoir serves multiple roles including recreation, municipal water storage, and ecosystem support in the Front Range corridor.
Carter Lake is situated in the foothills below the Rocky Mountains on the eastern side of the Continental Divide (North America), within watersheds connected to the South Platte River and ultimately the Missouri River. The reservoir sits at the intersection of county roads with proximity to U.S. Route 287, Interstate 25, and the regional rail corridor operated historically by Union Pacific Railroad. Neighboring protected areas and landmarks include Horsetooth Reservoir, Rocky Mountain National Park, and the Cache la Poudre River National Heritage Area. Surrounding municipalities that rely on its recreation and water resources include Loveland, Colorado, Fort Collins, Colorado, Greeley, Colorado, and Weld County, Colorado communities.
Carter Lake was constructed as part of federal projects executed during the mid-20th century, conceived within policy frameworks influenced by agencies such as the United States Bureau of Reclamation, the U.S. Army Corps of Engineers, and state entities including the Colorado Water Conservation Board. The dam and reservoir were authorized amid broader regional development initiatives like the Colorado-Big Thompson Project and after precedents set by New Deal and postwar infrastructure programs tied to the Tennessee Valley Authority model. Engineering work drew on contractors experienced with projects such as Glen Canyon Dam and Hoover Dam, and designs reflected standards promoted by the American Society of Civil Engineers. Local stakeholders including the City of Loveland and the Northern Colorado Water Conservancy District negotiated water rights and operation agreements informed by Colorado water law and prior adjudications in Division 1.
Hydrologic inputs to Carter Lake derive primarily from the Big Thompson River watershed, snowmelt from the Front Range and precipitation patterns influenced by the North American Monsoon, with flow regulation coordinated among entities like the United States Bureau of Reclamation, Northern Water, and municipal utilities such as the City of Loveland Utilities Commission. The reservoir participates in water storage, seasonal flow moderation, and emergency flood mitigation following precedents established after events like the Big Thompson Flood of 1976 and the 2013 Colorado floods. Water allocation interfaces with transmountain diversions exemplified by the Colorado-Big Thompson Project and downstream rights held by entities including the Denver Water Department and agricultural districts in Larimer County and Weld County. Hydropower generation capacity is modest but comparable to small releases managed under federal licensing by the Federal Energy Regulatory Commission frameworks.
Carter Lake supports fish populations targeted by management plans of the Colorado Parks and Wildlife, including stocked species such as rainbow trout, brown trout, and kokanee salmon as well as native and introduced warmwater species like walleye and smallmouth bass. Terrestrial and avian habitats around the reservoir are used by species recorded by the Audubon Society and studies from institutions like Colorado State University and University of Colorado Boulder. Recreational uses administered by local authorities include boating, angling, camping, hiking on trails linking to the Masonville Trail System, and winter activities coordinated with county parks systems. Annual events and competitions connect with regional organizations such as the USA Triathlon and local angling tournaments sanctioned by Trout Unlimited chapters.
Public access to Carter Lake is provided through day-use areas, campgrounds, boat ramps, marinas, and picnic facilities operated by the City of Loveland in partnership with the Larimer County Department of Natural Resources and the United States Bureau of Reclamation. Access corridors include U.S. Route 287, county roads, and regional transit links to Fort Collins-Loveland Municipal Airport and trailheads connected to the Front Range Trail. Services nearby include fueling and repair offered by businesses in Loveland, Colorado and seasonal concessions managed under permits with organizations such as the Colorado Parks and Wildlife and local chambers of commerce like the Loveland Chamber of Commerce.
Conservation and environmental challenges at Carter Lake involve invasive species management (for example species monitored by the Colorado Department of Agriculture and the U.S. Fish and Wildlife Service), sedimentation concerns addressed through studies by the U.S. Geological Survey (USGS), and water-quality monitoring coordinated with the Environmental Protection Agency regional offices and the Colorado Department of Public Health and Environment. Best-practice conservation initiatives draw on partnerships with non-governmental organizations such as The Nature Conservancy, Trout Unlimited, and local watershed coalitions, while research collaborations with Colorado State University and federal agencies inform adaptive management to mitigate impacts from drought patterns associated with the Western United States drought and climate trends analyzed by the National Oceanic and Atmospheric Administration. Ongoing programs include shoreline restoration, riparian buffer plantings coordinated through the Natural Resources Conservation Service, and public education campaigns run jointly by municipal officials and regional conservation groups.
Category:Reservoirs in Colorado Category:Larimer County, Colorado