SH 121 SB over Sister Grove Branch
Fair Condition5 years old15,070 vehicles/day
Location
| State | Texas |
| County | Collin |
| Location | 4.10 Mi NE Of FM 545 |
| Carries | SH 121 SB |
| Crosses | Sister Grove Branch |
| Coordinates | 33.31779, -96.50466 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 8 (Very 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 | 2021 |
Traffic
| Avg Daily Traffic | 15,070 (2020) |
| 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 | 180430054903232 |