310TH St over Fletchall Creek
Ringgold County, Iowa · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 310TH St over Fletchall Creek in Ringgold County, Iowa, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2021, making it 4 years old at the 2025 inventory.
- It carries about 45 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 59 of the 215 inventoried bridges in Ringgold County rated good (27.4%); 88 (40.9%) 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 December 2023, on a 48-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 → (40.59555, -94.27281)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 79 ft |
| Location | 067302301 |
| NBI structure number | 000000000295411 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | December 2023 |
| Inspection interval (item 91) | 48 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.