Thompson RD over Ciwa Canal
GoodPosted for loadHarris County, Texas · 0.10 MI S of Jones RD · Structure no. 121020AA3401001
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected August 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 97 ft
- 3 main spans
- Daily traffic
- 8,390
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Thompson RD over Ciwa Canal is a prestressed concrete box beam or girders - multiple carrying Thompson RD over Ciwa Canal in Harris County, Texas. It was built in 1970, so it is 55 years old, older 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. Its operating status is: posted for load restriction.
It carries about 8,390 vehicles a day, roughly 3% of them trucks, projected to reach 8,390 by 2042. The structure is 97 ft (29.6 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 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 Thompson RD over Ciwa Canal built?
It was built in 1970, making it 55 years old in 2025.
What condition is Thompson RD over Ciwa Canal 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 2023.
How much traffic does Thompson RD over Ciwa Canal carry?
About 8,390 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is Thompson RD over Ciwa Canal?
The structure is 97 ft (29.6 m) long with a longest span of 31 ft (9.4 m) and a deck 34 ft wide.
Who owns Thompson RD over Ciwa Canal?
It is owned by the County Highway Agency.