Structure C-16-R · Larimer County, CO
Carries US 34 Ml over Louden Ditch, 2.2 M. West Of Loveland.
Set by its lowest-rated component: Deck and 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 rigid-frame bridge.
| State | Colorado |
| County | Larimer |
| Location | 2.2 M. West Of Loveland |
| Carries | US 34 Ml |
| Crosses | Louden Ditch |
| Coordinates | 40.41831, -105.18223 |
| Material | Concrete |
| Design | Frame |
| Total Length | 23.3 ft (7.1 m) |
| Max Span | 20.3 ft (6.2 m) |
| Deck Width | 33.5 ft (10.2 m) |
| Deck Area | 72.4 sq m |
| Main Spans | 1 |
| Year Built | 1933 |
| Avg Daily Traffic | 8,300 (2020) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | C-16-R |
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.