I-49 SB Lns over Porter Road
Washington County, Arkansas · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-49 SB Lns over Porter Road in Washington County, Arkansas, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2015, making it 10 years old at the 2025 inventory.
- It carries about 69,203 vehicles a day (traffic count year 2018).
- Its listed owner is the state highway agency.
- It is one of 100 of the 449 inventoried bridges in Washington County rated good (22.3%); 30 (6.7%) are rated poor.
- 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 → (36.08967, -94.19337)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 391 ft |
| Location | 2.69 No Jct 49 & 62 |
| NBI structure number | 000000000007287 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Arkansas department of transportation.
Busiest bridges in Washington County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I49 NB Mn Ln Ramp over US 71B Mn Lns-Wash. Co. | 1984 | 68,000 | Fair |
| I-49 Main Lanes over Brush Creek-Washington | 1983 | 67,000 | Fair |
| I-49 Washington Co over Hamestring Creek | 2015 | 66,598 | Good |
| I-49 NE Ramp over I-49 SB & 71B SB-Wash Co | 1984 | 52,589 | Good |
| SH112 Rmp to I49NB over NB I-49 Ramp to 71B | 2017 | 46,443 | Good |
| Ncollegeave over US 71 Sect 17B | 1971 | 44,355 | Fair |
All bridges nearby: Washington County, AR bridge conditions · every bridge in Washington County · Arkansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.