US 90A SB over Buffalo Bayou/ Zoltowski
PoorHarris County, Texas · 1.6 MI S of IH 10 · Structure no. 121020002710063
- Built
- 1956
- 69 years old, rebuilt 1996
- Condition
- Poor
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 970 ft
- 3 main spans
- Daily traffic
- 25,730
- 2013 count
- Owner
- State
- State Highway Agency
About this bridge
US 90A SB over Buffalo Bayou/ Zoltowski is a steel continuous stringer/multi-beam or girder carrying US 90A SB over Buffalo Bayou/ Zoltowski in Harris County, Texas. It was built in 1956 and reconstructed in 1996, so it is 69 years old, older than the Texas average of 44.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 25,730 vehicles a day, roughly 4% of them trucks, projected to reach 36,030 by 2033. The structure is 970 ft (295.7 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 90A SB over Buffalo Bayou/ Zoltowski built?
It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1996.
What condition is US 90A SB over Buffalo Bayou/ Zoltowski in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.
How much traffic does US 90A SB over Buffalo Bayou/ Zoltowski carry?
About 25,730 vehicles per day (2013 count), of which roughly 4% are trucks.
How long is US 90A SB over Buffalo Bayou/ Zoltowski?
The structure is 970 ft (295.7 m) long with a longest span of 270 ft (82.3 m) and a deck 40 ft wide.
Who owns US 90A SB over Buffalo Bayou/ Zoltowski?
It is owned by the State Highway Agency.