BirdTrout

Ashtabula-Chagrin Watershed, Ohio

1,442 miles of mapped stream across 628 square miles of drainage in Ashtabula, Lake, Geauga, Cuyahoga, Portage counties, in 34 named streams. Ohio designates 106 of those miles as trout water, on 15 streams.

Open in BirdTrout
Map key
Public land — where the bank is open to walk and fish
USGS gauge — live water temperature
Water temperature — the colour of every stream in the basin

50°F and colder is cold, through cold-transitional and cool, to warm above 70°F — the same four bands the app paints. On this map the colour is nothing at all: Ohio EPA publishes no thermal classification, so every stream on this map draws grey. The gauge dots are the one exception and they read live. Grey is every stream here, for the reason above.

The watershed in numbers

HUC8 04110003 in the USGS Watershed Boundary Dataset. Every figure below adds up the river pages in this basin — same records, one basin at a time.

1,442 mi
of mapped stream
3,352 NHD reaches
628 sq mi
drainage area
401,605 acres
3,750 ac
public land
0.9% of the basin · 6 units

Cold, cool and warm water

Ohio publishes no thermal class. What Ohio EPA publishes is an aquatic life use under OAC 3745-1 — Coldwater, Exceptional Warmwater, Warmwater, Modified Warmwater or Limited Resource Habitat — assigned on fish and macroinvertebrate survey scores. It describes the community the water supports, not the temperature it runs at. It covers 0% of this basin's stream miles (0.0 of 1,442); the rest is untyped and is drawn grey on the map above.

Ohio EPA publishes no thermal classification of any stream in the state, so this page has no cold/cool/warm breakdown and none is inferred from the aquatic life use. The coldwater designation is a habitat and management call — OAC 3745-1-07(B)(1)(f) covers both waters holding native coldwater fauna and waters ODNR runs a trout programme on that could be restored to coldwater — and reading a July temperature out of it would be this site inventing one. Ohio water draws grey on the live map; grey means unmeasured.

Every named stream in the basin

All 34 of them, longest first. 8 have a page of their own and are linked; the rest are in the app. The class column is Ohio EPA's designation of that stream. It is not a temperature: this state publishes none, so every row reads untyped in the thermal column. "Now" is the live USGS reading where a gauge stands in that stream.

Stream Miles Class Now Designation
Chagrin River 52.0 untyped — Warmwater Habitat
Ashtabula River 27.5 untyped — Warmwater Habitat
East Branch Chagrin River 23.7 untyped — Coldwater Habitat
Aurora Branch 19.9 untyped — Coldwater Habitat
West Branch Ashtabula River 16.5 untyped — —
East Branch Ashtabula River 14.0 untyped — —
Cowles Creek 11.4 untyped — Warmwater Habitat
Euclid Creek 11.3 untyped — —
Arcola Creek 11.0 untyped — Warmwater Habitat
Indian Creek 10.4 untyped — —
Ashtabula Creek 9.7 untyped — —
Wheeler Creek 8.7 untyped — Warmwater Habitat
Silver Creek 8.4 untyped — Coldwater Habitat
Griswold Creek 8.4 untyped — Coldwater Habitat
Doan Brook 8.2 untyped — —
Red Brook 7.6 untyped — —
McFarland Creek 7.5 untyped — —
Ward Brook 7.3 untyped — Warmwater Habitat
Marsh Creek 5.9 untyped — —
Willey Creek 5.7 untyped — Coldwater Habitat
Spring Creek 5.2 untyped — Coldwater Habitat
East Branch 4.9 untyped — —
Ninemile Creek 4.6 untyped — —
Fields Brook 4.4 untyped — —
Heisley Creek 3.9 untyped — —
Hubbard Run 3.4 untyped — Coldwater Habitat
Redstone Run 2.6 untyped — —
McKinley Creek 2.4 untyped — —
Pierson Creek 2.4 untyped — Coldwater Habitat, Exceptional Warmwater Habitat / Coldwater Habitat
Claribel Creek 2.4 untyped — —
Creek Chub Run 1.9 untyped — Warmwater Habitat
Coffee Creek 1.8 untyped — —
East Branch of Euclid Creek 1.8 untyped — —
Stevenson Brook 1.8 untyped — —

Public land in the watershed

3,750 acres in 6 units, which is 0.9% of the 401,605 acres the basin covers. Private inholdings carried in the same source file are excluded, here and on the map.

Managing agency Acres Share Units
City and township land 2,418 64% 2
County land 1,109 30% 2
State natural-resources agency 223 6% 2

The biggest named blocks of it, each with its own page — the streams on that ground, what is open to hunt on it, and where the access sites are.

Neighbouring watersheds

The subbasins that share a boundary with this one and carry coldwater streams.