Williams Road over Spaulding Extension
Clinton County, Michigan · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Williams Road over Spaulding Extension in Clinton County, Michigan, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1924 and reconstructed in 1984, making it 101 years old at the 2025 inventory.
- It carries about 160 vehicles a day (traffic count year 1979).
- Its listed owner is the county highway agency.
- It is one of 34 of the 215 inventoried bridges in Clinton County rated poor (15.8%); 34 (15.8%) 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.
- It is coded scour critical (NBI item 113 = 3): scour critical: foundations unstable for the assessed or calculated scour.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (42.98016, -84.52298)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 27 ft |
| Location | N of Parks Rd |
| NBI structure number | 000000000001958 |
| Condition class | Poor |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 3: scour critical: foundations unstable for the assessed or calculated scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Michigan department of transportation.
Busiest bridges in Clinton County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-127 NB over Ferdun Creek | 1957 | 88,500 | Fair |
| US-127 SB over Coleman Rd | 1971 | 41,300 | Fair |
| US-127 NB over Coleman Rd | 1971 | 41,300 | Fair |
| I-96 over Husted & Landenburg Drn | 1957 | 38,938 | Fair |
| I-69 over Chandler Drain | 1973 | 37,978 | Fair |
| I-69 over Chandler Drain | 1973 | 37,978 | Fair |
All bridges nearby: Clinton County, MI bridge conditions · every bridge in Clinton County · Michigan bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.