SH 121 SB over W Sandy Lake RD
GoodDallas County, Texas · 1.55 MI SW of Denton C/L · Structure no. 180570036402430
- Built
- 2009
- 16 years old
- Condition
- Good
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 250 ft
- 2 main spans
- Daily traffic
- 142,733
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
SH 121 SB over W Sandy Lake RD is a prestressed concrete stringer/multi-beam or girder carrying SH 121 SB over W Sandy Lake RD in Dallas County, Texas. It was built in 2009, so it is 16 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 142,733 vehicles a day, projected to reach 116,370 by 2031. The structure is 250 ft (76.2 m) long and 95 ft wide.
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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 121 SB over W Sandy Lake RD built?
It was built in 2009, making it 16 years old in 2025.
What condition is SH 121 SB over W Sandy Lake RD 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 January 2024.
How much traffic does SH 121 SB over W Sandy Lake RD carry?
About 142,733 vehicles per day (2018 count).
How long is SH 121 SB over W Sandy Lake RD?
The structure is 250 ft (76.2 m) long with a longest span of 125 ft (38.1 m) and a deck 95 ft wide.
Who owns SH 121 SB over W Sandy Lake RD?
It is owned by the State Highway Agency.