Structure 3470A0000000 · Pierce County, WA
Carries SR 7 over Clover Creek, 3.7 N Jct SR 507.
Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.
How ratings work23 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 slab bridge.
| State | Washington |
| County | Pierce |
| Location | 3.7 N Jct SR 507 |
| Carries | SR 7 |
| Crosses | Clover Creek |
| Coordinates | 47.13706, -122.43461 |
| Material | Concrete |
| Design | Slab |
| Total Length | 23.0 ft (7 m) |
| Max Span | 21.0 ft (6.4 m) |
| Deck Width | 73.5 ft (22.4 m) |
| Deck Area | 156.8 sq m |
| Main Spans | 1 |
| Year Built | 1929 (reconstructed 1948) |
| Avg Daily Traffic | 31,999 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 5 |
| Last Inspection | March 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 0003470A0000000 |
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.