SH 66/Stone County over S. Sylamore
Stone County, Arkansas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SH 66/Stone County over S. Sylamore in Stone County, Arkansas, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1956, making it 69 years old at the 2025 inventory.
- It carries about 2,300 vehicles a day (traffic count year 2018).
- Its listed owner is the state highway agency.
- It is one of 34 of the 73 inventoried bridges in Stone County rated fair (46.6%); 10 (13.7%) 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 October 2024, 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 → (35.88643, -92.23982)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Concrete slab |
| Length | about 224 ft |
| Location | .46 Mi E of Newnata |
| NBI structure number | 000000000000892 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2024 |
| 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 Arkansas department of transportation.
Busiest bridges in Stone County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SH 9/Stone County over Branch | 1978 | 4,400 | Good |
| SH 66/Stone County over Hughes Creek | 1955 | 4,300 | Fair |
| SH 66/Stone County over Tubbs Creek | 1955 | 4,286 | Poor |
| SH 66/Stone County over Lick Fork Creek | 1955 | 4,286 | Poor |
| SH 14/Stone County over Rocky Bayou | 1951 | 2,536 | Fair |
| SH 5/Stone County over Sylamore Creek | 1938 | 2,500 | Poor |
All bridges nearby: Stone County, AR bridge conditions · every bridge in Stone County · Arkansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.