Reservoir 26
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Depth scale
Survey readout
Reservoir 26 has a reported maximum depth of 14 ft, and covers about 46 acres in Sullivan County, Indiana. The Indiana DNR survey maps contours down to 12 ft; the depth between 12 ft and 14 ft is interpolated rather than measured. Depths come from the Indiana DNR survey of 2018.
Measured from the Indiana DNR lake bathymetry survey.
Depth below 12 ft is interpolated. The survey's own contours stop at 12 ft, while it reports a maximum of 14 ft. The basin between those two depths is inferred by the model, not measured — so the shape of the deep hole is an estimate, and the deep-spot marker shows the deepest depth actually surveyed.
- Deepest mapped contour
- 14 ft
- Survey year
- 2018
- Surface area
- 46 acres
- Shoreline
- 1.11 mi · round
- Aquatic vegetation
- 12% of surface · NDVI estimate
- Public access
- Boat Ramp · Reservoir Number Twenty-six · Indiana DNR site
Additional depth details4 contours
- Contour depths
- 0–14 ft
- Recorded point soundings
- 12 ft, 6 ft, 6 ft
Provenance
Sources: IN DNR Lake Bathymetry, USGS 3DEP, USDA NAIP (public domain), OpenStreetMap (ODbL).
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Map details & sources4 sources
All layers registered to one bounding box; positions in WGS 84.
Survey-derived depth contours drape over USGS 3DEP elevation, with a USDA NAIP aerial basemap and OpenStreetMap shoreline. Color shows surveyed depth; dark lines are the survey's own isobaths.
- Coordinates
- 39.01870, -87.24616
- IN DNR lake ID
- 90345054
- Vertical exaggeration
- 3.0× below the waterline; land at true scale
- Basemap
- USDA NAIP · public domain
- Model size
- 1.4 MB
Paddling
Paddling Index methodology v1.0 · calculated 2026-09-21Reservoir 26 has a heavily wooded and largely undeveloped setting, well sheltered geometry, little nearby major-road exposure. Watercraft controls: Electric motors only.
Why this score?5 components
Included in the index
| Component | Rating | Points of weight | Measurement |
|---|---|---|---|
| Natural setting | Excellent | 24.8 of 30 | 84% natural land cover within 150 m of shore (78% forest, 4% wetland; 4% developed) |
| Geometric wind exposure | Excellent | 25.0 of 25 | mean fetch 460 m · 71% of sampled water within 500 m of shelter · short fetch in most directions |
| Watercraft controls | Electric motors only | 14.2 of 15 | Electric motors only |
| Public access | Good | 12.8 of 15 | 1 DNR fishing access site · boat ramp · ADA-accessible · fishing pier |
| Road isolation | Excellent | 14.6 of 15 | relatively isolated from major roads · 3 INDOT-classified segments within 1.2 km, peak 1,001 vehicles/day |
Additional paddling considerations
These describe the lake but are not part of the v1 Paddling Index and do not change the number above.
- Wake sensitivity
- Low — wide enough that wakes disperse over most of the lake
- Aquatic vegetation
- Low — approximately 12% mapped coverage · NAIP aerial imagery (NDVI)
- Observed motorized activity
- Unknown — No lake-level measurement of boat traffic is available. Legal permission to operate motors is not evidence of use.
- Wildlife habitat potential
- High — 78% forest and 4% wetland cover within 150 m of shore
Compare Indiana lakes by Paddling Index →
Reservoir 26 — common questions
How deep is Reservoir 26?
The Indiana DNR reports a maximum depth of 14 ft for Reservoir 26. The survey's own contours reach 12 ft, so the depth below that is interpolated from the reported maximum rather than mapped.
How big is Reservoir 26?
Reservoir 26 covers about 46 acres in Sullivan County, Indiana.
Is there public access to Reservoir 26?
Yes. The Indiana DNR lists a public access site on Reservoir 26: a boat ramp with a fishing pier, restrooms and ADA access. The DNR notes that a lake permit is required. DNR directions: "N of Bucktown on SR 159 then E on CR 500 S."
Is the depth of Reservoir 26 measured or estimated?
The survey contours reach 12 ft while the survey reports a maximum of 14 ft, so the basin between those depths is inferred by the model rather than measured.
