US Bridges

Bw 8 NB over Clay RD

Fair

Harris County, Texas · 3.10 MI S of US 290 · Structure no. 121020325601169

Built
1990
35 years old, rebuilt 2004
Condition
Fair
inspected November 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
264 ft
1 main span
Daily traffic
15,000
2010 count
Owner
Toll Authority
Local Toll Authority

About this bridge

Bw 8 NB over Clay RD is a prestressed concrete stringer/multi-beam or girder carrying Bw 8 NB over Clay RD in Harris County, Texas. It was built in 1990 and reconstructed in 2004, so it is 35 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 15,000 vehicles a day, roughly 7% of them trucks, projected to reach 29,250 by 2028. The structure is 264 ft (80.5 m) long and 72 ft wide.

Location

Open in Google Maps
CarriesBw 8 NB
CrossesClay RD
Location3.10 MI S of US 290
CountyHarris County
StateTexas
Coordinates29.83198, -95.56368
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length264 ft (80.5 m)
Longest span116 ft (35.4 m)
Deck width72 ft (21.8 m)
Roadway width69 ft (20.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2010)
Projected traffic29,250 by 2028
Trucks7%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
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 Bw 8 NB over Clay RD built?

It was built in 1990, making it 35 years old in 2025. It was reconstructed in 2004.

What condition is Bw 8 NB over Clay 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 November 2022.

How much traffic does Bw 8 NB over Clay RD carry?

About 15,000 vehicles per day (2010 count), of which roughly 7% are trucks.

How long is Bw 8 NB over Clay RD?

The structure is 264 ft (80.5 m) long with a longest span of 116 ft (35.4 m) and a deck 72 ft wide.

Who owns Bw 8 NB over Clay RD?

It is owned by the Local Toll Authority.