US 59 SB over Isleib RD
FairFort Bend County, Texas · 7.3 MI S of SH 36 · Structure no. 120800008909213
- Built
- 2008
- 17 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 310 ft
- 3 main spans
- Daily traffic
- 13,292
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
US 59 SB over Isleib RD is a prestressed concrete stringer/multi-beam or girder carrying US 59 SB over Isleib RD in Fort Bend County, Texas. It was built in 2008, so it is 17 years old, younger than the Texas average of 44.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 13,292 vehicles a day, roughly 14% of them trucks, projected to reach 18,585 by 2039. The structure is 310 ft (94.5 m) long and 62 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 59 SB over Isleib RD built?
It was built in 2008, making it 17 years old in 2025.
What condition is US 59 SB over Isleib RD in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.
How much traffic does US 59 SB over Isleib RD carry?
About 13,292 vehicles per day (2019 count), of which roughly 14% are trucks.
How long is US 59 SB over Isleib RD?
The structure is 310 ft (94.5 m) long with a longest span of 120 ft (36.6 m) and a deck 62 ft wide.
Who owns US 59 SB over Isleib RD?
It is owned by the State Highway Agency.