US Bridges

West RD EB over White Oak Bayou

Fair

Harris County, Texas · 0.15 MI E of Rio Grande · Structure no. 121020AA7704002

Built
1988
37 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
152 ft
5 main spans
Daily traffic
12,145
2016 count
Owner
County
County Highway Agency

About this bridge

West RD EB over White Oak Bayou is a prestressed concrete box beam or girders - multiple carrying West RD EB over White Oak Bayou in Harris County, Texas. It was built in 1988, so it is 37 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 5 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 12,145 vehicles a day, roughly 1% of them trucks, projected to reach 8,000 by 2035. The structure is 152 ft (46.3 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesWest RD EB
CrossesWhite Oak Bayou
Location0.15 MI E of Rio Grande
RouteCounty Highway 0
CountyHarris County
StateTexas
Coordinates29.90914, -95.57057
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length152 ft (46.3 m)
Longest span30 ft (9.1 m)
Deck width31 ft (9.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,145 (2016)
Projected traffic8,000 by 2035
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$9,000
NavigationNo navigation control on waterway

Frequently asked questions

When was West RD EB over White Oak Bayou built?

It was built in 1988, making it 37 years old in 2025.

What condition is West RD EB over White Oak Bayou 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 2023.

How much traffic does West RD EB over White Oak Bayou carry?

About 12,145 vehicles per day (2016 count), of which roughly 1% are trucks.

How long is West RD EB over White Oak Bayou?

The structure is 152 ft (46.3 m) long with a longest span of 30 ft (9.1 m) and a deck 31 ft wide.

Who owns West RD EB over White Oak Bayou?

It is owned by the County Highway Agency.