FM 1128 over Mustang Bayou
GoodBrazoria County, Texas · 2.10 MI N of SH 6 · Structure no. 120200168401004
- Built
- 1984
- 41 years old
- Condition
- Good
- inspected October 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 137 ft
- 3 main spans
- Daily traffic
- 7,314
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
FM 1128 over Mustang Bayou is a prestressed concrete box beam or girders - multiple carrying FM 1128 over Mustang Bayou in Brazoria County, Texas. It was built in 1984, so it is 41 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 7,314 vehicles a day, roughly 5% of them trucks, projected to reach 7,320 by 2033. The structure is 137 ft (41.8 m) long and 42 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 | 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 FM 1128 over Mustang Bayou built?
It was built in 1984, making it 41 years old in 2025.
What condition is FM 1128 over Mustang Bayou 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 FM 1128 over Mustang Bayou carry?
About 7,314 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is FM 1128 over Mustang Bayou?
The structure is 137 ft (41.8 m) long with a longest span of 45 ft (13.7 m) and a deck 42 ft wide.
Who owns FM 1128 over Mustang Bayou?
It is owned by the State Highway Agency.