6TH Street over Lapwai Creek
Nez Perce County, Idaho · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 6TH Street over Lapwai Creek in Nez Perce 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 1999, making it 26 years old at the 2025 inventory.
- It carries about 588 vehicles a day (traffic count year 2023).
- Its listed owner is a city or municipal highway agency.
- It is one of 20 of the 72 inventoried bridges in Nez Perce County rated good (27.8%); 3 (4.2%) 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 July 2022, on a 48-month routine inspection cycle.
- 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 → (46.37419, -116.67244)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete tee beam |
| Length | about 65 ft |
| Location | In CULDESAC;6TH St. |
| NBI structure number | 000000000029991 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2022 |
| Inspection interval (item 91) | 48 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 Idaho department of transportation.
Busiest bridges in Nez Perce County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SMA7344;BRYDEN Cyn over Snake R;high/southway Br | 1982 | 22,000 | Fair |
| US 12 over US 12;SNAKE River | 1939 | 21,000 | Fair |
| US 12 over Clearwater River;bnrr | 1951 | 21,000 | Fair |
| US 95 over Hatwai Creek | 1979 | 13,000 | Fair |
| US 95 over US 12;US 12-95 Ic | 1964 | 11,000 | Fair |
| US 12 over Aprroach Rd;catholic CR. | 1968 | 8,400 | Good |
All bridges nearby: Nez Perce County, ID bridge conditions · every bridge in Nez Perce County · Idaho bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.