SH 121 Nbml over Sister Grove Branch
Good Condition6 years old7,700 vehicles/day
Location
| State | Texas |
| County | Collin |
| Location | 1.4 Miles SW Of SH 475 |
| Carries | SH 121 Nbml |
| Crosses | Sister Grove Branch |
| Coordinates | 33.33294, -96.48046 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 220.1 ft (67.1 m) |
| Max Span | 100.1 ft (30.5 m) |
| Deck Width | 40.0 ft (12.2 m) |
| Deck Area | 818.6 sq m |
| Main Spans | 3 |
| Year Built | 2020 |
Traffic
| Avg Daily Traffic | 7,700 (2017) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 180430054903231 |