Co Rd 70 Zone B over Alex Branch-Polk Co.
Polk County, Arkansas · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Co Rd 70 Zone B over Alex Branch-Polk Co. in Polk County, Arkansas, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1937, making it 88 years old at the 2025 inventory.
- It carries about 334 vehicles a day (traffic count year 2018).
- Its listed owner is the county highway agency.
- It is one of 29 of the 222 inventoried bridges in Polk County rated poor (13.1%); 29 (13.1%) 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 February 2024, on a 24-month routine inspection cycle.
- It is coded scour critical (NBI item 113 = 3): scour critical: foundations unstable for the assessed or calculated scour.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (34.65561, -94.09094)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Concrete slab |
| Length | about 51 ft |
| Location | 3.70 M E Jct US71 & COR70 |
| NBI structure number | 000000000016180 |
| Condition class | Poor |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | February 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 3: scour critical: foundations unstable for the assessed or calculated scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Arkansas department of transportation.
Busiest bridges in Polk County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US Highway 71 over Ward Creek Polk County | 1953 | 13,000 | Fair |
| US 71 - Polk Co. over Creek | 1980 | 11,000 | Fair |
| US 71 over Lyn Creek | 1953 | 7,900 | Fair |
| US 71-Polk Co over McKinney Creek | 1935 | 6,600 | Fair |
| US 71 - Polk Co. over Drainage Ditch | 1939 | 6,600 | Fair |
| US 71-Polk Co over Brier Creek | 1953 | 6,168 | Fair |
All bridges nearby: Polk County, AR bridge conditions · every bridge in Polk County · Arkansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.