Structure 26660 · Boise County, ID
Carries Summit Flat Road over Smith Creek, 0.5 E. Pioneerville.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.
How ratings work21 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.
| State | Idaho |
| County | Boise |
| Location | 0.5 E. Pioneerville |
| Carries | Summit Flat Road |
| Crosses | Smith Creek |
| Coordinates | 43.96778, -115.84143 |
| Material | Wood or Timber |
| Design | Stringer/Multi-beam |
| Total Length | 21.0 ft (6.4 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Width | 15.4 ft (4.7 m) |
| Deck Area | 30.1 sq m |
| Main Spans | 1 |
| Year Built | 1974 |
| Avg Daily Traffic | 50 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 1 |
| Last Inspection | September 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 000000000026660 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.