Sienna Pkwy over Sawmill Lake
GoodFort Bend County, Texas · 0.27 MI W of Waters Lake · Structure no. 120800AA1107252
- Built
- 2018
- 7 years old
- Condition
- Good
- inspected December 2023
- Type
- Arch - Deck
- Concrete
- Length
- 37 ft
- 1 main span
- Daily traffic
- 30,959
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Sienna Pkwy over Sawmill Lake is a concrete arch - deck carrying Sienna Pkwy over Sawmill Lake in Fort Bend County, Texas. It was built in 2018, so it is 7 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 30,959 vehicles a day, roughly 4% of them trucks, projected to reach 43,343 by 2042. The structure is 37 ft (11.3 m) long and 101 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sienna Pkwy over Sawmill Lake built?
It was built in 2018, making it 7 years old in 2025.
What condition is Sienna Pkwy over Sawmill Lake 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 December 2023.
How much traffic does Sienna Pkwy over Sawmill Lake carry?
About 30,959 vehicles per day (2021 count), of which roughly 4% are trucks.
How long is Sienna Pkwy over Sawmill Lake?
The structure is 37 ft (11.3 m) long with a longest span of 37 ft (11.3 m) and a deck 101 ft wide.
Who owns Sienna Pkwy over Sawmill Lake?
It is owned by the County Highway Agency.