Keithly Creek Road over Keithly Creek
Washington County, Idaho · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Keithly Creek Road over Keithly Creek in Washington County, Idaho, 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 1995, making it 30 years old at the 2025 inventory.
- It carries about 30 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 26 of the 80 inventoried bridges in Washington County rated good (32.5%); 4 (5.0%) 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 → (44.50611, -116.75972)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 24 ft |
| Location | 2.5 N. 1.1 W. Midvale |
| NBI structure number | 000000000028776 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Idaho department of transportation.
Busiest bridges in Washington County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 95 over Robertson Slough | 2017 | 7,800 | Good |
| US 95 over Weiser River | 2013 | 7,700 | Fair |
| US 95 over Monroe Creek | 1999 | 5,600 | Good |
| US 95 over Galloway Canal | 1999 | 5,600 | Good |
| US 95 over Manns Creek | 2004 | 4,400 | Fair |
| US 95 over Sage Creek | 1964 | 4,400 | Fair |
All bridges nearby: Washington County, ID bridge conditions · every bridge in Washington County · Idaho bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.