N Grand River over Grand River
Ingham County, Michigan · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- N Grand River over Grand River in Ingham 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 1924 and reconstructed in 1979, making it 101 years old at the 2025 inventory.
- It carries about 3,815 vehicles a day (traffic count year 2009).
- Its listed owner is a city or municipal highway agency.
- It is one of 40 of the 241 inventoried bridges in Ingham County rated good (16.6%); 30 (12.4%) are rated poor.
- 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 → (42.74991, -84.55527)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Concrete deck arch |
| Length | about 202 ft |
| Location | In the City of Lansing |
| NBI structure number | 000000000003947 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Michigan department of transportation.
Busiest bridges in Ingham County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-96 over Kalamink Creek | 1962 | 48,560 | Fair |
| I-496 WB over Mount Hope Rd | 1963 | 41,388 | Fair |
| I-496 WB over Forest Rd | 1963 | 41,388 | Fair |
| I-496 WB over Jolly Rd | 1963 | 41,388 | Fair |
| I-496 WB over Red Cedar River & Ramp V | 1970 | 39,163 | Fair |
| I-496 WB over CSX RR & Trowbridge Rmp | 2024 | 39,163 | Good |
All bridges nearby: Ingham County, MI bridge conditions · every bridge in Ingham County · Michigan bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.