Structure 999901600810171 · Riley County, KS
Carries K16 HWY over Big Blue R(tuttle Res ), 1.76 Mi E Us77.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.
How ratings work5,350 ft end to end, longest span 184 ft: about 15 football fields, or 1.0 miles. 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 | Kansas |
| County | Riley |
| Location | 1.76 Mi E Us77 |
| Carries | K16 HWY |
| Crosses | Big Blue R(tuttle Res ) |
| Coordinates | 39.43250, -96.72250 |
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 5350.1 ft (1630.7 m) |
| Max Span | 184.1 ft (56.1 m) |
| Deck Width | 33.1 ft (10.1 m) |
| Deck Area | 16470.1 sq m |
| Main Spans | 5 |
| Year Built | 1962 |
| Avg Daily Traffic | 539 (2023) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
| Last Inspection | August 2024 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 999901600810171 |
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.