SH 121 over Stiff Creek
GoodCollin County, Texas · 0.5 MI NE of FM 2933 · Structure no. 180430054903220
- Built
- 2019
- 6 years old
- Condition
- Good
- inspected September 2023
- Type
- Culvert
- Concrete
- Length
- 49 ft
- 3 main spans
- Daily traffic
- 13,628
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
SH 121 over Stiff Creek is a concrete culvert carrying SH 121 over Stiff Creek in Collin County, Texas. It was built in 2019, so it is 6 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 13,628 vehicles a day, roughly 14% of them trucks, projected to reach 19,080 by 2037. The structure is 49 ft (14.9 m) long and 117 ft wide. If it were closed, the detour would be 3.1 mi (5 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 121 over Stiff Creek built?
It was built in 2019, making it 6 years old in 2025.
What condition is SH 121 over Stiff Creek 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 September 2023.
How much traffic does SH 121 over Stiff Creek carry?
About 13,628 vehicles per day (2017 count), of which roughly 14% are trucks.
How long is SH 121 over Stiff Creek?
The structure is 49 ft (14.9 m) long with a longest span of 6 ft (1.8 m) and a deck 117 ft wide.
Who owns SH 121 over Stiff Creek?
It is owned by the State Highway Agency.