24 mapped river miles, draining 52 square miles, in the Ashtabula Chagrin basin watershed. No gauge stands in it; the nearest is 15.3 miles away, and it is the only temperature evidence on this page — what Ohio EPA publishes is the aquatic life use below — a habitat designation under Ohio Administrative Code 3745-1, which describes the assemblage the water holds rather than the temperature it runs at.
50°F and colder is cold, through cold-transitional and cool, to warm above 70°F — the same four bands, breaking at 58, 64 and 70°F, that the app paints. Grey is water nobody has measured.
The nearest gauge is 16.7 miles away, at Cuyahoga River At Independence Oh — not a reading of this water, but of what the region is doing today. A closer gauge has stopped reporting — its water-temperature series is empty, and was last stamped 28 September 2026, so no number here comes from it.
There isn't one. Ohio EPA publishes no temperature classification for any water in Ohio. What it publishes is the aquatic life use below — a habitat designation under Ohio Administrative Code 3745-1, which describes the assemblage the water holds rather than the temperature it runs at — so this river draws grey on the map above, and grey here means unmeasured rather than warm. The only temperature on this page is the live reading from the nearest USGS gauge, 15.3 miles away; it is a reading of that water, not this one.
The Chagrin River is a Lake Erie tributary with 27.5 miles of run corridor on it — salmon, steelhead and lake-run brown trout, on their own calendar and under their own rules. Run timing, species and access on the Chagrin River →
Ohio EPA classifies this water as Warmwater Habitat. This is Ohio EPA's description of the aquatic community the water supports, assigned under OAC 3745-1 on fish and macroinvertebrate survey scores. It is not the season and creel rules — those are the ODNR Division of Wildlife's, change yearly, and live with that agency.
Ohio EPA water quality standards, OAC 3745-1 →
12 units of public or open-access land touch this river, 2,755 acres in total. Acreage is the whole unit, not the part beside the water.
| Unit | Owner | Acres |
|---|---|---|
| Bass Lake Preserve | county land | 574 |
| The Rookery | county land | 559 |
| Western Reserve Land Conservancy 382 | local holder not recorded | 74 |
| Western Reserve Land Conservancy 187 | local holder not recorded | 95 |
| Whitesburg Park | city land | 31 |
| Western Reserve Land Conservancy 381 | local holder not recorded | 11 |
| White Tail Ranch Wild Animal Preserve | city land | 64 |
| River Run Park | city land | 5 |
| Vacant Municipal | city land | 1,337 |
| Riverside Park | city land | 3 |
Ohio EPA designates this as trout water — Warmwater Habitat — without naming the species. No fish survey or stocking record for this water is in the files this site reads.
1 named stream meets this one. Confluence miles are above the mouth; the longest twelve are listed.
Chagrin River sits in HUC 8 04110003, the Ashtabula Chagrin basin, and drains 52 square miles, Strahler order 4 at the mouth. 138 NHD reaches carry the name for 52.0 miles in total — more than the 24.2 miles of drawn mainstem, because NHD counts side channels and braids as their own reaches.
The closest 6 rivers on this site, straight-line from the middle of this one — not drive time.