SH 99 NB over Mound Road
GoodHarris County, Texas · 0.40 MI S of US 290 · Structure no. 121020351005090
- Built
- 2013
- 12 years old
- Condition
- Good
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 324 ft
- 3 main spans
- Daily traffic
- 19,100
- 2010 count
- Owner
- State
- State Highway Agency
About this bridge
SH 99 NB over Mound Road is a prestressed concrete stringer/multi-beam or girder carrying SH 99 NB over Mound Road in Harris County, Texas. It was built in 2013, so it is 12 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 19,100 vehicles a day, roughly 5% of them trucks, projected to reach 32,400 by 2030. The structure is 324 ft (98.8 m) long and 40 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 | 8 Very Good | No problems noted. |
| 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 99 NB over Mound Road built?
It was built in 2013, making it 12 years old in 2025.
What condition is SH 99 NB over Mound Road 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 August 2024.
How much traffic does SH 99 NB over Mound Road carry?
About 19,100 vehicles per day (2010 count), of which roughly 5% are trucks.
How long is SH 99 NB over Mound Road?
The structure is 324 ft (98.8 m) long with a longest span of 124 ft (37.8 m) and a deck 40 ft wide.
Who owns SH 99 NB over Mound Road?
It is owned by the State Highway Agency.