Maple River Road over Maple River
Emmet County, Michigan · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Maple River Road over Maple River in Emmet County, Michigan, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2015, making it 10 years old at the 2025 inventory.
- It carries about 683 vehicles a day (traffic count year 2014).
- Its listed owner is the county highway agency.
- It is one of 21 of the 38 inventoried bridges in Emmet County rated good (55.3%); 1 (2.6%) 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 August 2024, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (45.50766, -84.76232)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 60 ft |
| Location | 1.4 Mi NE of Brutus |
| NBI structure number | 000000000002459 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2024 |
| 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 Emmet County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-31|W Mitchellst over Bear River | 1930 | 28,667 | Fair |
| I-75 over Straits of Mackinac | 1957 | 11,926 | Fair |
| I-75 S Appr over Huron Ave | 1957 | 11,076 | Fair |
| I-75 N Appr over Straits of Mackinac | 1942 | 11,076 | Fair |
| I-75 NB over D&m RR (abn) | 1957 | 10,100 | Fair |
| I-75 NB over Central St | 1957 | 10,100 | Fair |
All bridges nearby: Emmet County, MI bridge conditions · every bridge in Emmet County · Michigan bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.