M-30 over Larabee Creek
Gladwin County, Michigan · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- M-30 over Larabee Creek in Gladwin County, Michigan, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1977, making it 48 years old at the 2025 inventory.
- It carries about 3,517 vehicles a day (traffic count year 2007).
- Its listed owner is the state highway agency.
- It is one of 24 of the 63 inventoried bridges in Gladwin County rated good (38.1%); 4 (6.3%) 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 July 2023, 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 → (43.94396, -84.36593)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 32 ft |
| Location | In Winegars |
| NBI structure number | 000000000002888 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Michigan department of transportation.
Busiest bridges in Gladwin County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| M-18|m-61|w Cedar over Cedar Creek | 2001 | 13,231 | Fair |
| M-18 over Tobacco River | 1939 | 6,100 | Poor |
| M-18 over S Br Little Sugar River | 1923 | 5,963 | Good |
| M-18 over Farm Drain | 1937 | 5,052 | Fair |
| M-30 over Tobacco River | 2021 | 4,100 | Good |
| M-61 over Tittabawassee River | 1958 | 3,302 | Fair |
All bridges nearby: Gladwin County, MI bridge conditions · every bridge in Gladwin County · Michigan bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.