SH 121 SB over Alma Drive
Good Condition17 years old22,796 vehicles/day
Location
| State | Texas |
| County | Collin |
| Location | 1.6 Mi NE Of FM 2478 |
| Carries | SH 121 SB |
| Crosses | Alma Drive |
| Coordinates | 33.13436, -96.70692 |
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 | 330.1 ft (100.6 m) |
| Max Span | 89.9 ft (27.4 m) |
| Deck Width | 69.9 ft (21.3 m) |
| Deck Area | 2142.8 sq m |
| Main Spans | 4 |
| Year Built | 2009 |
Traffic
| Avg Daily Traffic | 22,796 (2018) |
| Truck Traffic | 6% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 10 |
Inspection & Ownership
| Last Inspection | December 2023 |
| Inspection Frequency | Every 24 months |
| Owner | Local Toll Authority |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 180430036404441 |