Mckinley Rd(c 600) over Commins Creek
Oscoda County, Michigan · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mckinley Rd(c 600) over Commins Creek in Oscoda County, Michigan, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 2003, making it 22 years old at the 2025 inventory.
- It carries about 1,440 vehicles a day (traffic count year 2005).
- Its listed owner is the county highway agency.
- It is one of 7 of the 15 inventoried bridges in Oscoda County rated fair (46.7%); 3 (20.0%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated October 2023, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (44.65773, -84.04295)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 52 ft |
| Location | Mentor Twp Sec 11 |
| NBI structure number | 000000000013192 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Michigan department of transportation.
Busiest bridges in Oscoda County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| M-33|m-72|n Mount over Au Sable River | 1984 | 8,950 | Fair |
| M-72|cripps Rd over E Br Big Creek | 1960 | 2,656 | Fair |
| Deeter Road over West Br Big Creek | 2001 | 2,100 | Good |
| M-72|park Rd over W Br Big Creek | 1957 | 2,064 | Fair |
| CR 489(RED Oak Rd) over Au Sable River | 1959 | 1,540 | Fair |
| Mckinley Rd(c 600) over Perry Creek | 2003 | 1,440 | Good |
All bridges nearby: Oscoda County, MI bridge conditions · every bridge in Oscoda County · Michigan bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.