SH 99 SB over Highland Knolls
GoodFort Bend County, Texas · 1.9 MI S of IH 10 · Structure no. 120800351004033
- Built
- 2006
- 19 years old
- Condition
- Good
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 304 ft
- 3 main spans
- Daily traffic
- 41,000
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
SH 99 SB over Highland Knolls is a prestressed concrete stringer/multi-beam or girder carrying SH 99 SB over Highland Knolls in Fort Bend County, Texas. It was built in 2006, so it is 19 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 41,000 vehicles a day, roughly 4% of them trucks, projected to reach 30,040 by 2033. The structure is 304 ft (92.7 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 | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 99 SB over Highland Knolls built?
It was built in 2006, making it 19 years old in 2025.
What condition is SH 99 SB over Highland Knolls 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 October 2024.
How much traffic does SH 99 SB over Highland Knolls carry?
About 41,000 vehicles per day (2019 count), of which roughly 4% are trucks.
How long is SH 99 SB over Highland Knolls?
The structure is 304 ft (92.7 m) long with a longest span of 128 ft (39 m) and a deck 51 ft wide.
Who owns SH 99 SB over Highland Knolls?
It is owned by the State Highway Agency.