IRR BIA RTE 11 over Onion Creek Drain
Fair Condition28 years old60 vehicles/day
Location
| State | Michigan |
| County | Isabella |
| Location | Saginaw Chippewa Res. |
| Carries | IRR BIA RTE 11 |
| Crosses | Onion Creek Drain |
| Coordinates | 43.59537, -84.70345 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 36.7 ft (11.2 m) |
| Max Span | 36.7 ft (11.2 m) |
| Deck Width | 78.1 ft (23.8 m) |
| Deck Area | 266.6 sq m |
| Main Spans | 1 |
| Year Built | 1998 |
Traffic
| Avg Daily Traffic | 60 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | Bureau of Indian Affairs |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 00000000000F521 |