Horse Heaven Reservoir Along East Shore
Crook County, Oregon28 acresView mapDirections
Oregon DEQ publishes the water-quality measurements for Horse Heaven Reservoir Along East Shore. Here is what has been measured.
- Impaired · Temperature
- 12 ft max depth
- Limited data
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Answers come straight from the public measurements and survey records on this page.
Horse Heaven Reservoir Along East Shore in Crook County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported. Phosphorus: 40 µg/L. Surface area: 28.1 acres.
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Horse Heaven Reservoir Along East Shore is a 28-acre lake in Crook County, Oregon with an estimated average depth of about 12 feet.
Source: EPA Water Quality Portal sampling records, Oregon DEQ, last sampled 2022-07-12. Grade methodology: LakeQuality methodology.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Horse Heaven Reservoir Along East Shore is listed impaired under Clean Water Act §303(d) (IR 5) for temperature. Check local advisories before you swim.
Whether Horse Heaven Reservoir Along East Shore is safe to swim in today is a call for the Oregon Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Horse Heaven Reservoir Along East Shore
These are the measurements Oregon DEQ publishes for Horse Heaven Reservoir Along East Shore, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 40 µg/L. TSI 57.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 40 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 57 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~12 ft est. |
| Surface Area | 28 acres |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Oregon has not published bathymetry for Horse Heaven Reservoir Along East Shore.
Lake Size & Watershed
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.
Fishing Horse Heaven Reservoir Along East Shore
Reservoir Info (USACE NID)
Horse Heaven Reservoir Along East Shore is a man-made reservoir impounded by the Bonnie View Dam (completed 1953), built primarily for irrigation on the Horse Heaven Creek; earth-type dam, 42 ft tall and 598 ft long.
- Surface area
- 28.1 ac
- Normal storage
- 484 ac-ft
- Max storage
- 750 ac-ft
- Drainage area
- 5 sq mi
- Hazard class
- Significant
- Owner
- GILL CATTLE COMPANY
Source: USACE National Inventory of Dams, NID ID OR00213 · Operator website · Matched by proximity (0.59 km)
EPA Impairment Status
Horse Heaven Reservoir Along East Shore is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit OR_LK_1707030406_05_100104 · Official waterbody report · Matched by proximity (0.27 km)
Nearby Lakes in Crook County
Frequently asked questions about Horse Heaven Reservoir Along East Shore
Where is Horse Heaven Reservoir Along East Shore?
- Horse Heaven Reservoir Along East Shore is a lake in Crook County, Oregon. Its water-quality measurements are published by Oregon DEQ and shown on this page as reported.
What is the water quality of Horse Heaven Reservoir Along East Shore?
- Horse Heaven Reservoir Along East Shore in Crook County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported. Phosphorus: 40 µg/L. Surface area: 28.1 acres.
Is Horse Heaven Reservoir Along East Shore safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Horse Heaven Reservoir Along East Shore is listed impaired under Clean Water Act §303(d) (IR 5) for temperature. Check local advisories before you swim.
How deep is Horse Heaven Reservoir Along East Shore?
- No published bathymetric survey covers Horse Heaven Reservoir Along East Shore, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 12 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 28.1 acres.
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Where this data comes from
1 measurement from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Department of Environmental Quality - State of Oregon
OREGONDEQ1 sample · 2022
Analytical methods
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
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
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)