Lake J B Thomas
Scurry County, Texas7,820 acresView mapDirections
No nutrient or algae sampling on record from TCEQ for this lake.
- 64 ft max depth
- Public access
- Limited data
Lake J B Thomas in Scurry County, Texas has water-quality measurements published by TCEQ, shown here as reported. Surface area: 7820 acres.
Lake J B Thomas is a 7,820-acre lake in Scurry County, Texas with an estimated average depth of about 64 feet. Limited fish-species data available. Public access is available with 2 public boat landings.
Source: EPA Water Quality Portal sampling records, TCEQ, last sampled 2020-10-13. Methodology: how these readings are compared.
At about 7,800 acres, Lake J B Thomas is large enough that where you stay decides which shore you see most of. It has 2 public boat landings, so a lakefront rental is not the only way to get a boat on the water. For a place on the water, look through cabin and lake-house rentals near Lake J B Thomas on Vrbo. For a hotel or motel room, Booking.com and Expedia both search around the lake.
What Lake J B Thomas is good for
From access and monitoring records, not editorial picks.
- Boat launch2 documented ramps
- Big water7,820 acres
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lake J B Thomas is safe to swim in today is a call for the Texas Commission on Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake J B Thomas
These are the measurements TCEQ publishes for Lake J B Thomas, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data.
Ask about Lake J B Thomas
Answers come straight from the public measurements and survey records on this page.
→ Lake J B Thomas water level: the live USGS gauge reading
Lake Details
Max depth
~64 ft est.
Surface area
7,820 acres
Public access
Yes
Listed by TCEQ
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Texas has not published bathymetry for Lake J B Thomas.
Lake Size & Watershed
Watershed (drainage) area
2,409 sq mi
HydroLAKES / HydroSHEDS
Shoreline
42.9 mi
HydroLAKES / HydroSHEDS
Elevation
2,211 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Recreation & Access
- Lake J. B. ThomasPublic
- Bull Creek ParkPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Lake J B Thomas
Compare lakeside cabins, hotels, and vacation rentals near Lake J B Thomas in Scurry County, Texas — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Lake J B Thomas
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip? Cabins and lodging at Lake J B Thomas → · more Texas lake trips
Follow Lake J B Thomas’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Lake J B Thomas
Reservoir Info (USACE NID)
Lake J B Thomas is a man-made reservoir impounded by the Lake Jb Thomas Dam (completed 1952), built primarily for water supply on the Colorado River; earth-type dam, 105 ft tall and 9,200 ft long.
- Surface area
- 7,820 ac
- Normal storage
- 200,604 ac-ft
- Max storage
- 430,600 ac-ft
- Drainage area
- 997 sq mi
- Hazard class
- High
- Owner
- COLORADO RIVER MUNICIPAL WATER DISTRICT
All listed purposes: Water Supply;Recreation.
Source: USACE National Inventory of Dams, NID ID TX04138 · Operator website
Nearby Lakes in Scurry County
Frequently asked questions about Lake J B Thomas
Where is Lake J B Thomas?
- Lake J B Thomas is a lake in Scurry County, Texas. Its water-quality measurements are published by TCEQ and shown on this page as reported.
What is the water quality of Lake J B Thomas?
- Lake J B Thomas in Scurry County, Texas has water-quality measurements published by TCEQ, shown here as reported. Surface area: 7820 acres.
Is Lake J B Thomas safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Lake J B Thomas?
- No published bathymetric survey covers Lake J B Thomas, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 64 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 7820 acres.
Are there boat ramps on Lake J B Thomas?
- Lake J B Thomas has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Lake J. B. Thomas, Bull Creek Park. Public access is listed as yes.
Can I fish at Lake J B Thomas?
- Lake J B Thomas has 2 documented boat landings in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Texas's fish and wildlife agency, so check its current regulations before you go.
Explore Lake J B Thomas across LakeQuality
More lakes in Texas
Other Lakes in Texas
Where this data comes from
5 measurements from 2 monitoring stations, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- USGS Texas Water Science Center
USGS-TX5 samples · 2020
Monitoring station identifiers (2)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory