FM over W Fork Grand River
Ringgold County, Iowa · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- FM over W Fork Grand River in Ringgold County, Iowa, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1966, making it 59 years old at the 2025 inventory.
- It carries about 34 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 68 of the 215 inventoried bridges in Ringgold County rated fair (31.6%); 88 (40.9%) 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 December 2022, on a 24-month routine inspection cycle.
- 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 → (40.76924, -94.35273)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 179 ft |
| Location | 069301901 |
| NBI structure number | 000000000297300 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | December 2022 |
| Inspection interval (item 91) | 24 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 Iowa department of transportation.
Busiest bridges in Ringgold County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ia 2 over Walnut Creek | 1988 | 1,750 | Good |
| Ia 2 over East Fork Grand River | 1985 | 1,750 | Fair |
| Ia 2 over Lotts Creek | 1985 | 1,750 | Good |
| US 169 over Stream | 1938 | 1,730 | Fair |
| US 169 over Walnut Creek | 1985 | 1,730 | Fair |
| Ia 2 over E Fork Lotts Creek | 1985 | 1,550 | Good |
All bridges nearby: Ringgold County, IA bridge conditions · every bridge in Ringgold County · Iowa bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.