US Bridges

US 59 Sbml over Westpark DR

Fair

Harris County, Texas · 1.90 MI W of IH 610 W · Structure no. 121020002713209

Built
1993
32 years old, rebuilt 2003
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,000 ft
3 main spans
Daily traffic
146,960
2011 count
Owner
State
State Highway Agency

About this bridge

US 59 Sbml over Westpark DR is a steel continuous stringer/multi-beam or girder carrying US 59 Sbml over Westpark DR in Harris County, Texas. It was built in 1993 and reconstructed in 2003, so it is 32 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 146,960 vehicles a day, roughly 6% of them trucks, projected to reach 205,750 by 2031. The structure is 1,000 ft (304.8 m) long and 91 ft wide.

CarriesUS 59 Sbml
CrossesWestpark DR
Location1.90 MI W of IH 610 W
RouteU.S. Route 59
StateTexas
Coordinates29.72331, -95.49196
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+7 approach)
Design loadHS 20
Structure length1,000 ft (304.8 m)
Longest span164 ft (50 m)
Deck width91 ft (27.7 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic146,960 (2011)
Projected traffic205,750 by 2031
Trucks6%
Lanes on structure6
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 59 Sbml over Westpark DR built?

It was built in 1993, making it 32 years old in 2025. It was reconstructed in 2003.

What condition is US 59 Sbml over Westpark DR 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 Sbml over Westpark DR carry?

About 146,960 vehicles per day (2011 count), of which roughly 6% are trucks.

How long is US 59 Sbml over Westpark DR?

The structure is 1,000 ft (304.8 m) long with a longest span of 164 ft (50 m) and a deck 91 ft wide.

Who owns US 59 Sbml over Westpark DR?

It is owned by the State Highway Agency.