Structure 4900448 · Marion County, IN
Carries Knapp RD over Flat Branch, 00.10 N Of Maze RD.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 4 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 | Indiana |
| County | Marion |
| Location | 00.10 N Of Maze RD |
| Carries | Knapp RD |
| Crosses | Flat Branch |
| Coordinates | 39.64648, -86.00907 |
| Material | Concrete |
| Design | Slab |
| Total Length | 23.0 ft (7 m) |
| Max Span | 19.7 ft (6 m) |
| Deck Width | 18.4 ft (5.6 m) |
| Deck Area | 39.2 sq m |
| Main Spans | 1 |
| Year Built | 1929 |
| Avg Daily Traffic | 233 (2019) |
| Truck Traffic | 5% |
| Lanes On Bridge | 1 |
| Last Inspection | July 2024 |
| Inspection Frequency | Every 12 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 4900448 |
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.