SH 31 Log 6.21 over Slough 78
Lonoke County, Arkansas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SH 31 Log 6.21 over Slough 78 in Lonoke County, Arkansas, 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 1954, making it 71 years old at the 2025 inventory.
- It carries about 770 vehicles a day (traffic count year 2018).
- Its listed owner is the state highway agency.
- It is one of 75 of the 189 inventoried bridges in Lonoke County rated fair (39.7%); 9 (4.8%) are rated poor.
- 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 → (34.56069, -91.88711)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 5 | Fair condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Concrete slab |
| Length | about 71 ft |
| Location | 1 Mi N of Jct US 165 |
| NBI structure number | 000000000002757 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Arkansas department of transportation.
Busiest bridges in Lonoke County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 67 over Glade Branch | 2018 | 56,135 | Good |
| US 67 Log 1.02 over White Oak Branch | 1969 | 38,000 | Fair |
| I-40 Log 175.75 over Creek | 1963 | 37,000 | Good |
| I-40 Log 177.81 over Creek | 1963 | 37,000 | Good |
| I-40 Log 183.99 over Buck Creek | 1963 | 33,125 | Fair |
| I-40 Log 185.46 over Buck Creek | 1963 | 33,000 | Good |
All bridges nearby: Lonoke County, AR bridge conditions · every bridge in Lonoke County · Arkansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.