634 Av-708/709 Rd over S Fk Big Nemaha River
Richardson County, Nebraska · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 634 Av-708/709 Rd over S Fk Big Nemaha River in Richardson County, Nebraska, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 7 (good condition) on the 0-9 scale.
- It was built in 1988, making it 37 years old at the 2025 inventory.
- It carries about 35 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 105 of the 259 inventoried bridges in Richardson County rated good (40.5%); 35 (13.5%) 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 September 2022, 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 → (40.1003, -95.9353)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous prestressed concrete stringer or multi-beam girder |
| Length | about 288 ft |
| Location | 4S Humb (634a-708/709r) |
| NBI structure number | C007400905 |
| Condition class | Good |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | September 2022 |
| 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 Nebraska department of transportation.
Busiest bridges in Richardson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US75 over Little Muddy Creek | 1986 | 3,615 | Good |
| US75 over Dry Branch | 1930 | 3,605 | Fair |
| US75 over Whiskey Run | 1986 | 3,605 | Good |
| US75 over Honey Creek | 1958 | 3,415 | Good |
| US75 over Stream | 1992 | 3,145 | Fair |
| US75 over S Fk Big Nemaha River | 1958 | 3,145 | Fair |
All bridges nearby: Richardson County, NE bridge conditions · every bridge in Richardson County · Nebraska bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.