Steel Road over Big Potato Creek
Saginaw County, Michigan · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Steel Road over Big Potato Creek in Saginaw County, Michigan, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1920 and reconstructed in 1996, making it 105 years old at the 2025 inventory.
- It carries about 79 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 58 of the 315 inventoried bridges in Saginaw County rated poor (18.4%); 58 (18.4%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated October 2024, on a 12-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 → (43.26457, -84.28854)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 4 | 4 | Poor condition |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 37 ft |
| Location | 0.4 Mi N of Brant Road |
| NBI structure number | 000000000009313 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | October 2024 |
| Inspection interval (item 91) | 12 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 Saginaw County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-75 NB over Cass River | 1961 | 56,192 | Good |
| I-75 US-10 over CSX RR | 1961 | 47,480 | Fair |
| I-75 US-10 over CSX RR | 1958 | 46,000 | Fair |
| I-75 SB over CSX RR | 1958 | 38,000 | Fair |
| I-75 NB over CSX RR | 2021 | 32,900 | Good |
| I-75 SB over CSX RR | 2021 | 32,900 | Fair |
All bridges nearby: Saginaw County, MI bridge conditions · every bridge in Saginaw County · Michigan bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.