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Full-history daily elevation and storage CSVs for every reservoir tracked.
Western Reservoir Conditions·Daily·No. 93·
One CSV per reservoir with the full daily period of record, updated daily, stable URLs. Columns: date (YYYY-MM-DD), elevation_ft (daily surface elevation, feet above sea level), storage_af (storage in acre-feet). Missing values are left blank, never zero-filled. Sources: USBR RISE (Colorado system), CDEC (California), and TWDB (Texas & Rio Grande) - details on the about page.
| File | Reservoir | Coverage | Latest reading |
|---|---|---|---|
| lake-mead.csv | Lake Mead | since February 2, 1935 | October 23, 2026 |
| lake-powell.csv | Lake Powell | since June 28, 1963 | October 23, 2026 |
| lake-mohave.csv | Lake Mohave | since January 8, 1950 | October 23, 2026 |
| lake-havasu.csv | Lake Havasu | since October 1, 1938 | October 23, 2026 |
| flaming-gorge.csv | Flaming Gorge Reservoir | since December 2, 1962 | October 23, 2026 |
| blue-mesa.csv | Blue Mesa Reservoir | since November 30, 1965 | October 23, 2026 |
| navajo.csv | Navajo Reservoir | since June 26, 1962 | October 23, 2026 |
| shasta.csv | Shasta Lake | since January 1, 1985 | October 23, 2026 |
| oroville.csv | Lake Oroville | since October 1, 1985 | October 23, 2026 |
| folsom.csv | Folsom Lake | since October 1, 1985 | October 23, 2026 |
| berryessa.csv | Lake Berryessa | since January 1, 1985 | October 23, 2026 |
| new-melones.csv | New Melones Lake | since October 1, 1985 | October 23, 2026 |
| trinity-lake.csv | Trinity Lake | since January 1, 1980 | October 23, 2026 |
| don-pedro.csv | Don Pedro Reservoir | since January 1, 1985 | October 23, 2026 |
| san-luis.csv | San Luis Reservoir | since January 4, 1988 | October 23, 2026 |
| lake-travis.csv | Lake Travis | since September 30, 1940 | October 24, 2026 |
| lake-buchanan.csv | Lake Buchanan | since June 30, 1937 | October 24, 2026 |
| canyon-lake.csv | Canyon Lake | since July 25, 1962 | October 24, 2026 |
| amistad.csv | Amistad Reservoir | since June 1, 1968 | October 24, 2026 |
| falcon.csv | Falcon Lake | since August 23, 1953 | October 24, 2026 |
| elephant-butte.csv | Elephant Butte Reservoir | since March 21, 1915 | October 18, 2026 |
| abilene.csv | Lake Abilene | since March 5, 1999 | October 24, 2026 |
| alan-henry.csv | Lake Alan Henry | since October 1, 1997 | October 24, 2026 |
| amon-g-carter.csv | Lake Amon G Carter | since March 5, 1999 | October 24, 2026 |
| aquilla.csv | Aquilla Lake | since October 2, 1983 | October 24, 2026 |
| arlington.csv | Lake Arlington | since April 2, 1957 | October 24, 2026 |
| arrowhead.csv | Lake Arrowhead | since June 2, 1967 | October 24, 2026 |
| athens.csv | Lake Athens | since October 2, 1985 | October 24, 2026 |
| austin.csv | Lake Austin | since January 1, 1966 | October 24, 2026 |
| b-a-steinhagen.csv | B. A. Steinhagen Lake | since May 2, 1951 | October 24, 2026 |
| bardwell.csv | Bardwell Lake | since November 2, 1965 | October 24, 2026 |
| belton.csv | Belton Lake | since March 2, 1954 | October 24, 2026 |
| benbrook.csv | Benbrook Lake | since October 2, 1952 | October 24, 2026 |
| bob-sandlin.csv | Lake Bob Sandlin | since August 9, 1977 | October 24, 2026 |
| bois-darc.csv | Bois d'Arc Lake | since December 1, 2021 | October 24, 2026 |
| bonham.csv | Lake Bonham | since March 25, 1999 | October 24, 2026 |
| brady-creek.csv | Brady Creek Reservoir | since May 2, 1963 | October 24, 2026 |
| bridgeport.csv | Bridgeport Reservoir | since October 2, 1977 | October 24, 2026 |
| brownwood.csv | Lake Brownwood | since July 1, 1933 | October 24, 2026 |
| caddo.csv | Caddo Lake | since June 17, 2012 | October 24, 2026 |
| cedar-creek.csv | Cedar Creek Reservoir | since January 2, 1965 | October 24, 2026 |
| champion-creek.csv | Champion Creek Reservoir | since October 2, 1959 | October 24, 2026 |
| cherokee.csv | Lake Cherokee | since February 14, 2017 | October 24, 2026 |
| choke-canyon.csv | Choke Canyon Reservoir | since October 1, 1984 | October 24, 2026 |
| cisco.csv | Lake Cisco | since February 11, 1999 | October 24, 2026 |
| coleman.csv | Lake Coleman | since February 26, 1999 | October 24, 2026 |
| coleto-creek.csv | Coleto Creek Reservoir | since October 2, 1986 | October 24, 2026 |
| colorado-city.csv | Lake Colorado City | since April 2, 1949 | October 24, 2026 |
| comanche-creek.csv | Comanche Creek Reservoir | since October 2, 1994 | October 24, 2026 |
| conroe.csv | Lake Conroe | since January 10, 1973 | October 24, 2026 |
| corpus-christi.csv | Lake Corpus Christi | since September 1, 1948 | October 24, 2026 |
| crook.csv | Lake Crook | since March 26, 1999 | October 24, 2026 |
| cypress-springs.csv | Lake Cypress Springs | since July 2, 1998 | October 24, 2026 |
| e-v-spence.csv | E. V. Spence Reservoir | since December 2, 1968 | October 24, 2026 |
| eagle-mountain.csv | Eagle Mountain Reservoir | since February 28, 1934 | October 24, 2026 |
| fork.csv | Lake Fork Reservoir | since October 2, 1979 | October 24, 2026 |
| fort-phantom-hill.csv | Fort Phantom Hill Reservoir | since October 1, 1965 | October 24, 2026 |
| georgetown.csv | Lake Georgetown | since March 4, 1980 | October 24, 2026 |
| gibbons-creek.csv | Gibbons Creek Reservoir | since May 2, 2017 | October 24, 2026 |
| graham.csv | Lake Graham | since October 2, 1963 | October 24, 2026 |
| granbury.csv | Lake Granbury | since October 2, 1972 | October 24, 2026 |
| granger.csv | Granger Lake | since January 22, 1980 | October 24, 2026 |
| grapevine.csv | Grapevine Lake | since July 2, 1952 | October 24, 2026 |
| greenbelt.csv | Greenbelt Lake | since August 17, 1967 | October 24, 2026 |
| halbert.csv | Halbert Lake | since April 15, 1999 | October 24, 2026 |
| hords-creek.csv | Hords Creek Lake | since April 2, 1948 | October 24, 2026 |
| houston.csv | Lake Houston | since April 2, 1954 | October 24, 2026 |
| houston-county.csv | Houston County Lake | since May 12, 1999 | October 24, 2026 |
| hubbard-creek.csv | Hubbard Creek Reservoir | since October 2, 1962 | October 24, 2026 |
| hubert-h-moss.csv | Moss Lake | since October 1, 2000 | October 24, 2026 |
| inks.csv | Inks Lake | since January 1, 1966 | October 24, 2026 |
| j-b-thomas.csv | Lake J.B. Thomas | since January 2, 1954 | October 24, 2026 |
| jacksonville.csv | Lake Jacksonville | since May 14, 1999 | October 24, 2026 |
| jim-chapman.csv | Cooper (Chapman) Lake | since October 2, 1993 | October 24, 2026 |
| joe-pool.csv | Joe Pool Lake | since October 2, 1985 | October 24, 2026 |
| kemp.csv | Lake Kemp | since October 2, 1949 | October 24, 2026 |
| kickapoo.csv | Lake Kickapoo | since February 1, 1946 | October 24, 2026 |
| lake-o-the-pines.csv | Lake O the Pines | since September 1, 1957 | October 24, 2026 |
| lavon.csv | Lavon Lake | since October 2, 1953 | October 24, 2026 |
| leon.csv | Leon Reservoir | since February 1, 1955 | October 24, 2026 |
| lewisville.csv | Lewisville Lake | since November 2, 1954 | October 24, 2026 |
| limestone.csv | Lake Limestone | since December 1, 1978 | October 24, 2026 |
| livingston.csv | Livingston Reservoir | since October 2, 1968 | October 24, 2026 |
| lost-creek.csv | Lost Creek Reservoir | since March 4, 1999 | October 24, 2026 |
| lyndon-b-johnson.csv | Lake L. B. Johnson | since August 1, 1951 | October 24, 2026 |
| mackenzie.csv | Mackenzie Reservoir | since April 17, 1999 | October 24, 2026 |
| marble-falls.csv | Lake Marble Falls | since January 1, 1966 | October 24, 2026 |
| martin.csv | Martin Lake | since April 11, 1974 | October 24, 2026 |
| medina.csv | Medina Lake | since August 9, 1997 | October 24, 2026 |
| meredith.csv | Lake Meredith | since October 2, 1986 | October 24, 2026 |
| millers-creek.csv | Millers Creek Reservoir | since October 2, 1976 | October 24, 2026 |
| mineral-wells.csv | Lake Mineral Wells | since February 19, 1999 | October 24, 2026 |
| monticello.csv | Monticello Reservoir | since July 10, 1998 | October 24, 2026 |
| mountain-creek.csv | Mountain Creek Lake | since October 2, 1960 | October 24, 2026 |
| murvaul.csv | Murvaul Lake | since April 8, 1999 | October 24, 2026 |
| nacogdoches.csv | Lake Nacogdoches | since March 2, 1977 | October 24, 2026 |
| nasworthy.csv | Lake Nasworthy | since October 1, 1996 | October 24, 2026 |
| navarro-mills.csv | Navarro Mills Lake | since September 2, 1962 | October 24, 2026 |
| new-terrell-city.csv | New Terrell City Lake | since April 22, 1999 | October 24, 2026 |
| nocona.csv | Lake Nocona (Farmer's Creek) | since March 13, 1999 | October 24, 2026 |
| north-fork-buffalo-creek.csv | North Fork Buffalo Creek Reservoir | since August 15, 1998 | October 24, 2026 |
| o-c-fisher.csv | O. C. Fisher Lake | since February 2, 1952 | October 24, 2026 |
| o-h-ivie.csv | O. H. Ivie Reservoir | since September 22, 1990 | October 24, 2026 |
| oak-creek.csv | Oak Creek Reservoir | since May 1, 1953 | October 24, 2026 |
| palestine.csv | Lake Palestine | since February 2, 1962 | October 24, 2026 |
| palo-duro.csv | Palo Duro Reservoir | since June 19, 1999 | October 24, 2026 |
| palo-pinto.csv | Lake Palo Pinto | since February 20, 1999 | October 24, 2026 |
| pat-cleburne.csv | Lake Pat Cleburne | since June 18, 1998 | October 24, 2026 |
| pat-mayse.csv | Pat Mayse Lake | since October 2, 1967 | October 24, 2026 |
| possum-kingdom.csv | Possum Kingdom Lake | since March 22, 1941 | October 24, 2026 |
| proctor.csv | Proctor Lake | since February 2, 1963 | October 24, 2026 |
| ray-hubbard.csv | Lake Ray Hubbard | since October 2, 1996 | October 24, 2026 |
| ray-roberts.csv | Ray Roberts Lake | since July 2, 1987 | October 24, 2026 |
| red-bluff.csv | Red Bluff Reservoir | since February 1, 1937 | October 24, 2026 |
| richland-chambers.csv | Richland-Chambers Reservoir | since November 2, 1988 | October 24, 2026 |
| sam-rayburn.csv | Sam Rayburn Reservoir | since January 2, 1965 | October 24, 2026 |
| somerville.csv | Somerville Lake | since February 2, 1966 | October 24, 2026 |
| stamford.csv | Lake Stamford | since July 1, 1953 | October 24, 2026 |
| stillhouse-hollow.csv | Stillhouse Hollow Lake | since September 2, 1966 | October 24, 2026 |
| striker.csv | Lake Striker | since January 30, 2017 | October 24, 2026 |
| sulphur-springs.csv | Lake Sulphur Springs | since March 26, 1999 | October 24, 2026 |
| sweetwater.csv | Lake Sweetwater | since January 1, 1936 | October 24, 2026 |
| tawakoni.csv | Lake Tawakoni | since October 2, 1960 | October 24, 2026 |
| texana.csv | Lake Texana | since June 18, 1999 | October 24, 2026 |
| texoma.csv | Lake Texoma | since October 2, 1943 | October 24, 2026 |
| toledo-bend.csv | Toledo Bend Reservoir | since October 2, 1966 | October 24, 2026 |
| twin-buttes.csv | Twin Buttes Reservoir | since October 2, 1962 | October 24, 2026 |
| tyler.csv | Lake Tyler | since October 2, 1985 | October 24, 2026 |
| waco.csv | Waco Lake | since August 2, 1964 | October 24, 2026 |
| waxahachie.csv | Lake Waxahachie | since April 3, 1999 | October 24, 2026 |
| weatherford.csv | Lake Weatherford | since August 29, 1998 | October 24, 2026 |
| white-river.csv | White River Reservoir | since April 2, 1964 | October 24, 2026 |
| whitney.csv | Whitney Lake | since January 2, 1952 | October 24, 2026 |
| worth.csv | Lake Worth | since October 2, 1981 | October 24, 2026 |
| wright-patman.csv | Wright Patman Lake | since October 2, 1986 | October 24, 2026 |
JSON - current state
/data/latest.json carries the latest reading for all 135 reservoirs - date, elevation, storage, percent full, status word, 7-day and 1-year change, record low, capacity basis, and source - and /data/<slug>.json (e.g. /data/lake-mead.json) serves one reservoir in the same shape. Rebuilt with the site, stable URLs, no key required. The JSON is current state only; the full history lives in the CSVs above.
All data is US-government public domain; these files just repackage it. Attribution appreciated: link to reservoirbench.com.
Want the current level on your own site instead? The free lake level badge is one copy-paste.