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LakeQuality

Jim Bridger Pond

Sweetwater County, Wyoming96 acresView mapDirections

NR
Not rated

Not enough samples to grade — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). No letter yet. Here is what we do have.

Water temp
No reading
No gauge
Clarity
4.9 ft
Secchi · sampled 2013
Max depth
~15 ft est.
GLOBathy model
Level
No reading
No gauge
Trend
No reading
Not enough history
  • 15 ft max depth
  • Public access
  • Limited data

Jim Bridger Pond in Sweetwater County, Wyoming is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 4.9 ft visibility. Phosphorus: 13 µg/L. Surface area: 96 acres.

Clarity
4.9 ft
Max depth
~15 ft est.
Area
96 acres
Phosphorus
13 µg/L
Public access
Yes
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Watch Jim Bridger Pond’s letter

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Why Jim Bridger Pond has no grade

We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Jim Bridger Pond, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity and phosphorus, but not algae (chlorophyll-a).

Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.

Sampling is run by Wyoming DEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.

Jim Bridger Pond is a 96-acre lake in Sweetwater County, Wyoming with an estimated average depth of about 15 feet. Limited fish-species data available. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled 2013-09-11. Grade methodology: LakeQuality methodology.

What Jim Bridger Pond is good for

From access and monitoring records, not editorial picks.

  • Boat launch1 documented ramp

Swimming Safety

Not rated

Limited data

The letter is not a swimming clearance. Check local advisories before you swim.

Get alerts for Jim Bridger Pond

Water quality measurements for Jim Bridger Pond

These readings exist but are not enough for an A–F grade — see why.

Murky, only visible to about 4.9 ft. Phosphorus 13 µg/L. TSI 48.

MetricValueGrade
Water Clarity (Secchi Depth)4.9 ftNot graded
Phosphorus13 µg/LNot graded
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)48Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth~15 ft est.
Average Depth~13 ft est.
Surface Area96 acres
Public AccessYes

Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Wyoming has not published bathymetry for Jim Bridger Pond.

Lake Size & Watershed

Watershed (drainage) area
3 sq mi
Shoreline
1.9 mi
Elevation
6,673 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

1
Boat Landings
Yes
Public Access
  • Jim Bridger PondPublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

Fishing Jim Bridger Pond

Reservoir Info (USACE NID)

Jim Bridger Pond is a man-made reservoir impounded by the Jim Bridger Power Plant Surge Pond (completed 1989), built primarily for water supply on the Humphrey Draw; earth-type dam, 97 ft tall and 810 ft long.

Surface area
96 ac
Normal storage
1,592 ac-ft
Max storage
2,228 ac-ft
Drainage area
3.6 sq mi
Hazard class
Significant
Owner
PACIFICORP

All listed purposes: Water Supply;Other.

Source: USACE National Inventory of Dams, NID ID WY01307 · Operator website · Matched by proximity (0.08 km)

Nearby Lakes in Sweetwater County

Frequently asked questions about Jim Bridger Pond

Where is Jim Bridger Pond?

Jim Bridger Pond is a lake in Sweetwater County, Wyoming. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).

What is the water quality grade for Jim Bridger Pond?

Jim Bridger Pond in Sweetwater County, Wyoming is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 4.9 ft visibility. Phosphorus: 13 µg/L. Surface area: 96 acres.

Is Jim Bridger Pond safe to swim in?

The letter is not a swimming clearance. Check local advisories before you swim.

How deep is Jim Bridger Pond?

No published bathymetric survey covers Jim Bridger Pond, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 15 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 96 acres.

Are there boat ramps on Jim Bridger Pond?

Jim Bridger Pond has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Jim Bridger Pond. Public access is listed as yes.

Where this data comes from

4 measurements from 1 monitoring station, 2013. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • State of Wyoming Department of Environmental Quality Watershed ProgramWYDEQ_WATERSHED4 samples · 2013

Analytical methods

  • Secchi
  • Total Phosphorus After Block Digestion
Monitoring station identifiers (1)

Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated 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