Woodruff Narrows Reservoir
Uinta County, Wyoming2,312 acresView mapDirections
Wyoming DEQ publishes the water-quality measurements for Woodruff Narrows Reservoir. Here is what has been measured.
- 128 ft max depth
- Public access
- Limited data
Woodruff Narrows Reservoir in Uinta County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Water clarity: 0.9 ft visibility. Phosphorus: 92 µg/L. Surface area: 2312 acres.
Woodruff Narrows Reservoir is a 2,312-acre lake in Uinta County, Wyoming with an estimated average depth of about 128 feet. Overall water quality is improving over recent sampling years. 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 2014-09-23. Methodology: how these readings are compared.
What Woodruff Narrows Reservoir is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Big water2,312 acres
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Woodruff Narrows Reservoir is safe to swim in today is a call for the Wyoming Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Woodruff Narrows Reservoir
These are the measurements Wyoming DEQ publishes for Woodruff Narrows Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 0.9 ft of visibility. Phosphorus 92 µg/L. TSI 74.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 0.9ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 92µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 74 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Woodruff Narrows Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~128 ft est.
Surface area
2,312 acres
Public access
Yes
Listed by Wyoming DEQ
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Wyoming has not published bathymetry for Woodruff Narrows Reservoir.
Lake Size & Watershed
Watershed (drainage) area
778 sq mi
HydroLAKES / HydroSHEDS
Shoreline
10.1 mi
HydroLAKES / HydroSHEDS
Elevation
6,453 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
- Woodruff Narrows ReservoirPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
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Fishing Woodruff Narrows Reservoir
Water quality readings over time
2 seasons of samples on record (2013–2014). Calling a direction takes at least 4 years of the same measurement.
Phosphorus
Improving-64.4 µg/L/yr2 years
Reservoir Info (USACE NID)
Woodruff Narrows Reservoir is a man-made reservoir impounded by the Woodruff Narrows (completed 1962), built primarily for irrigation on the Bear River; earth-type dam, 68 ft tall and 620 ft long.
- Surface area
- 2,312 ac
- Normal storage
- 57,300 ac-ft
- Max storage
- 102,000 ac-ft
- Drainage area
- 870 sq mi
- Hazard class
- High
- Owner
- WOODRUFF NARROWS RESERVOIR ASSOCIATION
Source: USACE National Inventory of Dams, NID ID WY01197 · Operator website
Nearby Lakes in Uinta County
Frequently asked questions about Woodruff Narrows Reservoir
Where is Woodruff Narrows Reservoir?
- Woodruff Narrows Reservoir is a lake in Uinta County, Wyoming. Its water-quality measurements are published by Wyoming DEQ and shown on this page as reported.
What is the water quality of Woodruff Narrows Reservoir?
- Woodruff Narrows Reservoir in Uinta County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Water clarity: 0.9 ft visibility. Phosphorus: 92 µg/L. Surface area: 2312 acres.
Is Woodruff Narrows Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Woodruff Narrows Reservoir?
- No published bathymetric survey covers Woodruff Narrows Reservoir, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 128 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 2312 acres.
Are there boat ramps on Woodruff Narrows Reservoir?
- Woodruff Narrows Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Woodruff Narrows Reservoir. Public access is listed as yes.
Can I fish at Woodruff Narrows Reservoir?
- Woodruff Narrows Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Wyoming's fish and wildlife agency, so check its current regulations before you go.
Explore Woodruff Narrows Reservoir across LakeQuality
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Where this data comes from
7 measurements from 1 monitoring station, 2013–2014. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- State of Wyoming Department of Environmental Quality Watershed Program
WYDEQ_WATERSHED7 samples · 2013–2014
Analytical methods
- Secchi
- Total Phosphorus After Block Digestion
Monitoring station identifiers (1)
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