West Branch Walker Brook Lake
Berkshire County, Massachusetts65 acresView mapDirections
Clarity, phosphorus, and algae all sit in the cleanest band for this region.
- Mesotrophic
- #4 of 8 in the county
- 32 ft max depth
- Limited data
West Branch Walker Brook Lake in Berkshire County, Massachusetts has a water quality grade of A (Excellent). Chlorophyll-a (algae): 2.5 µg/L. Surface area: 65 acres.
- Max depth
- ~32 ft est.
- Area
- 65 acres
- Type
- Mesotrophic
- Chlorophyll-a
- 2.5 µg/L
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Watch West Branch Walker Brook Lake’s letter
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West Branch Walker Brook Lake is a 65-acre mesotrophic lake in Berkshire County, Massachusetts with an estimated average depth of about 32 feet. Water quality is graded A based on 1 sampling years through 2016. Compared to the 7 other monitored lakes in Berkshire County, West Branch Walker Brook Lake ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, MassDEP, last sampled 2016-09-21. Grade methodology: LakeQuality methodology.
Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The A is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: A (Excellent)
No clarity data. Chlorophyll-a 2.5 µg/L. TSI 40. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 2.5 µg/L | Good |
| Trophic State Index (TSI) | 40 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~32 ft est. |
| Average Depth | ~18 ft est. |
| Surface Area | 65 acres |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Massachusetts has not published bathymetry for West Branch Walker Brook Lake.
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 West Branch Walker Brook Lake
Reservoir Info (USACE NID)
West Branch Walker Brook Lake is a man-made reservoir impounded by the Robin Hood Lake Dam (completed 2013), built primarily for recreation on the West Branch Walker Brook; earth-type dam, 17 ft tall and 250 ft long.
- Surface area
- 65 ac
- Normal storage
- 362 ac-ft
- Max storage
- 490 ac-ft
- Drainage area
- 1.9 sq mi
- Hazard class
- Significant
- Owner
- Sherwood Forest Lake District
Source: USACE National Inventory of Dams, NID ID MA00206 · Operator website · Matched by proximity (0.04 km)
County Ranking
Ranked #4 of 8 lakes in Berkshire County
Nearby Lakes in Berkshire County
Frequently asked questions about West Branch Walker Brook Lake
Where is West Branch Walker Brook Lake?
- West Branch Walker Brook Lake is a lake in Berkshire County, Massachusetts. LakeQuality grades it A for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for West Branch Walker Brook Lake?
- West Branch Walker Brook Lake in Berkshire County, Massachusetts has a water quality grade of A (Excellent). Chlorophyll-a (algae): 2.5 µg/L. Surface area: 65 acres.
Is West Branch Walker Brook Lake safe to swim in?
- The A is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
How deep is West Branch Walker Brook Lake?
- No published bathymetric survey covers West Branch Walker Brook Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 32 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 65 acres.
Explore West Branch Walker Brook Lake across LakeQuality
2 documented falls within 16 mi, nearest Glendale Falls
Species activity outlook by water temperature and season
Where to stay at Massachusetts's top lakes, each with its grade
Moderate nutrients, good water quality
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Where this data comes from
3 measurements from 1 monitoring station, 2016. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Massachusetts Department of Environmental Protection (MassDEP)
MASSDEP3 samples · 2016
Analytical methods
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
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)