Knob Hill RD over Trib W Prong Sister Grov
GoodGrayson County, Texas · 3.25 MI W of FM 2729 · Structure no. 010920AA0222001
- Built
- 2002
- 23 years old
- Condition
- Good
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 50 ft
- 1 main span
- Daily traffic
- 45
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Knob Hill RD over Trib W Prong Sister Grov is a prestressed concrete stringer/multi-beam or girder carrying Knob Hill RD over Trib W Prong Sister Grov in Grayson County, Texas. It was built in 2002, so it is 23 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 45 vehicles a day, projected to reach 55 by 2030. The structure is 50 ft (15.2 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 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 Knob Hill RD over Trib W Prong Sister Grov built?
It was built in 2002, making it 23 years old in 2025.
What condition is Knob Hill RD over Trib W Prong Sister Grov 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 March 2024.
How much traffic does Knob Hill RD over Trib W Prong Sister Grov carry?
About 45 vehicles per day (2023 count).
How long is Knob Hill RD over Trib W Prong Sister Grov?
The structure is 50 ft (15.2 m) long with a longest span of 50 ft (15.2 m) and a deck 26 ft wide.
Who owns Knob Hill RD over Trib W Prong Sister Grov?
It is owned by the County Highway Agency.