Structure 180570009214197 · Dallas County, TX
Carries IH 345 SB over IH 30 US 75 Dart Rail, Ih345 & Ih30 Interchange.
Set by its lowest-rated component: Superstructure and Substructure at 4 of 9.
How ratings work13,192 ft end to end, longest span 230 ft: about 37 football fields, or 2.5 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 girder bridge.
| State | Texas |
| County | Dallas |
| Location | Ih345 & Ih30 Interchange |
| Carries | IH 345 SB |
| Crosses | IH 30 US 75 Dart Rail |
| Coordinates | 32.79242, -96.79276 |
| Material | Steel Continuous |
| Design | Girder and Floorbeam |
| Total Length | 13191.9 ft (4020.9 m) |
| Max Span | 230.0 ft (70.1 m) |
| Deck Width | 57.7 ft (17.6 m) |
| Deck Area | 70767.8 sq m |
| Main Spans | 98 |
| Year Built | 1971 |
| Avg Daily Traffic | 90,190 (2022) |
| Truck Traffic | 6% |
| Lanes On Bridge | 3 |
| Lanes Under Bridge | 94 |
| Last Inspection | June 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Scour Critical | Not applicable |
| Structure Number | 180570009214197 |
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.