SH 86 Log 2.75 over Big Lagrue Bayou
Prairie County, Arkansas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SH 86 Log 2.75 over Big Lagrue Bayou in Prairie County, Arkansas, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1953 and reconstructed in 1967, making it 72 years old at the 2025 inventory.
- It carries about 140 vehicles a day (traffic count year 2018).
- Its listed owner is the state highway agency.
- It is one of 48 of the 88 inventoried bridges in Prairie County rated fair (54.5%); 8 (9.1%) 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 May 2023, 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 → (34.74302, -91.68017)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Concrete channel beam |
| Length | about 44 ft |
| Location | 2.8 Mi S Jct US 70 & 86 |
| NBI structure number | 0000000000M3085 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Arkansas department of transportation.
Busiest bridges in Prairie County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-40 Log 199.12 over White Rvr Rlf & Park Rd | 2013 | 36,000 | Good |
| I-40 Log 200.79 over White River Relief | 2013 | 36,000 | Good |
| I-40 Log 189.65 over Barnes CR | 1965 | 35,916 | Fair |
| I-40 Log 190.10 over Branch | 1963 | 35,916 | Good |
| I 40 District 6 over White River | 2016 | 34,000 | Good |
| I-40 WB Log194.39 over Hurricane Creek | 1965 | 18,000 | Fair |
All bridges nearby: Prairie County, AR bridge conditions · every bridge in Prairie County · Arkansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.