US Bridges

IH 45 NB Off-Ramp over Bw 8 Ebfr & Wbfr

Fair

Harris County, Texas · IH 45 & Bw 8 Interchange · Structure no. 121020011006283

Built
1995
30 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
562 ft
8 main spans
Daily traffic
19,835
2021 count
Owner
State
State Highway Agency

About this bridge

IH 45 NB Off-Ramp over Bw 8 Ebfr & Wbfr is a prestressed concrete box beam or girders - multiple carrying IH 45 NB Off-Ramp over Bw 8 Ebfr & Wbfr in Harris County, Texas. It was built in 1995, so it is 30 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 19,835 vehicles a day, roughly 7% of them trucks, projected to reach 29,969 by 2041. The structure is 562 ft (171.3 m) long and 29 ft wide.

Location

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CarriesIH 45 NB Off-Ramp
CrossesBw 8 Ebfr & Wbfr
LocationIH 45 & Bw 8 Interchange
RouteInterstate 45
CountyHarris County
StateTexas
Coordinates29.94023, -95.41344
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length562 ft (171.3 m)
Longest span83 ft (25.3 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deck17 ft (5.1 m)

Traffic and service

Average daily traffic19,835 (2021)
Projected traffic29,969 by 2041
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkInterstate 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 IH 45 NB Off-Ramp over Bw 8 Ebfr & Wbfr built?

It was built in 1995, making it 30 years old in 2025.

What condition is IH 45 NB Off-Ramp over Bw 8 Ebfr & Wbfr 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 IH 45 NB Off-Ramp over Bw 8 Ebfr & Wbfr carry?

About 19,835 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is IH 45 NB Off-Ramp over Bw 8 Ebfr & Wbfr?

The structure is 562 ft (171.3 m) long with a longest span of 83 ft (25.3 m) and a deck 29 ft wide.

Who owns IH 45 NB Off-Ramp over Bw 8 Ebfr & Wbfr?

It is owned by the State Highway Agency.