Jackson Road over Unnamed Creek
Ionia County, Michigan · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Jackson Road over Unnamed Creek in Ionia County, Michigan, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1993, making it 32 years old at the 2025 inventory.
- It carries about 321 vehicles a day (traffic count year 2008).
- Its listed owner is the county highway agency.
- It is one of 12 of the 118 inventoried bridges in Ionia County rated poor (10.2%); 12 (10.2%) 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 2024, on a 12-month routine inspection cycle.
- 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 → (42.91536, -85.19353)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 4 | 4 | Poor condition |
Bridge details
| Structure | Steel culvert |
| Length | about 21 ft |
| Location | 1.0 Mile SE of Saranac |
| NBI structure number | 000000000004055 |
| Condition class | Poor |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2024 |
| Inspection interval (item 91) | 12 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 Ionia County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-96 over Portland Trail | 2013 | 35,000 | Good |
| I-96 over Libhart Creek | 1958 | 33,978 | Fair |
| I-96 EB over Kent Rd | 1959 | 20,074 | Fair |
| I-96 WB over Kent Rd | 1959 | 20,074 | Fair |
| I-96 EB over Okemos Rd | 1959 | 20,074 | Fair |
| I-96 WB over Okemos Rd | 1959 | 20,074 | Fair |
All bridges nearby: Ionia County, MI bridge conditions · every bridge in Ionia County · Michigan bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.