SH 121 NB over Dnt Frontage Roads
Good Condition17 years old55,316 vehicles/day
Location
| State | Texas |
| County | Collin |
| Location | Dnt/sh 121 Interchange |
| Carries | SH 121 NB |
| Crosses | Dnt Frontage Roads |
| Coordinates | 33.09091, -96.82285 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 514.1 ft (156.7 m) |
| Max Span | 118.1 ft (36 m) |
| Deck Width | 69.9 ft (21.3 m) |
| Deck Area | 3337.7 sq m |
| Main Spans | 5 |
| Year Built | 2009 |
Traffic
| Avg Daily Traffic | 55,316 (2018) |
| Truck Traffic | 5% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 8 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | Local Toll Authority |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 180430036404122 |