SH 121 SB FR over NW Trib of Youngs Br Crk
GoodCollin County, Texas · 0.15 MI SW of Ind Parkway · Structure no. 180430036404182
- Built
- 2007
- 18 years old
- Condition
- Good
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 110 ft
- 1 main span
- Daily traffic
- 22,081
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
SH 121 SB FR over NW Trib of Youngs Br Crk is a prestressed concrete stringer/multi-beam or girder carrying SH 121 SB FR over NW Trib of Youngs Br Crk in Collin County, Texas. It was built in 2007, so it is 18 years old, younger than the Texas average of 44.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 22,081 vehicles a day, roughly 3% of them trucks, projected to reach 29,320 by 2040. The structure is 110 ft (33.5 m) long and 51 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 121 SB FR over NW Trib of Youngs Br Crk built?
It was built in 2007, making it 18 years old in 2025.
What condition is SH 121 SB FR over NW Trib of Youngs Br Crk in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.
How much traffic does SH 121 SB FR over NW Trib of Youngs Br Crk carry?
About 22,081 vehicles per day (2020 count), of which roughly 3% are trucks.
How long is SH 121 SB FR over NW Trib of Youngs Br Crk?
The structure is 110 ft (33.5 m) long with a longest span of 110 ft (33.5 m) and a deck 51 ft wide.
Who owns SH 121 SB FR over NW Trib of Youngs Br Crk?
It is owned by the State Highway Agency and maintained by the Local Toll Authority.