Kalamazoo Street over Grand River
Ingham County, Michigan · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Kalamazoo Street over Grand River in Ingham County, Michigan, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1979, making it 46 years old at the 2025 inventory.
- It carries about 7,875 vehicles a day (traffic count year 2006).
- Its listed owner is a city or municipal highway agency.
- It is one of 171 of the 241 inventoried bridges in Ingham County rated fair (71.0%); 30 (12.4%) 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 fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (42.72999, -84.54714)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 417 ft |
| Location | In the City of Lansing |
| NBI structure number | 000000000003937 |
| Condition class | Fair |
| 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 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.