M-103 over White Pigeon River
St. Joseph County, Michigan · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- M-103 over White Pigeon River in St. Joseph 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 1931 and reconstructed in 1998, making it 94 years old at the 2025 inventory.
- It carries about 3,802 vehicles a day (traffic count year 2007).
- Its listed owner is the state highway agency.
- It is one of 39 of the 132 inventoried bridges in St. Joseph County rated good (29.5%); 16 (12.1%) 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 July 2023, on a 24-month routine inspection cycle.
- 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 → (41.76985, -85.77328)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 99 ft |
| Location | 0.5 Mi N of Indiana State |
| NBI structure number | 000000000010261 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 7: scour countermeasures installed |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Michigan department of transportation.
Busiest bridges in St. Joseph County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-131 over St Joseph River | 2013 | 9,999 | Good |
| US-131 NB over Rocky River | 1951 | 9,588 | Fair |
| US-131 SB over Rocky River | 1956 | 9,588 | Fair |
| US-131 over White Pigeon River | 1994 | 9,556 | Fair |
| M-60 & US-131 Br over Rocky River | 1966 | 9,299 | Fair |
| M-60 & US-131 Br over Rocky River Race | 1942 | 9,299 | Fair |
All bridges nearby: St. Joseph County, MI bridge conditions · every bridge in St. Joseph County · Michigan bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.