US Bridges

IH45 SB to BW8 WB over IH 45 Sbfr & Bw 8 Wbfr

Good

Harris County, Texas · Jct. IH45 & BW8 South · Structure no. 121020050003351

Built
1997
28 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,364 ft
2 main spans
Daily traffic
20,726
2023 count
Owner
State
State Highway Agency

About this bridge

IH45 SB to BW8 WB over IH 45 Sbfr & Bw 8 Wbfr is a steel continuous stringer/multi-beam or girder carrying IH45 SB to BW8 WB over IH 45 Sbfr & Bw 8 Wbfr in Harris County, Texas. It was built in 1997, so it is 28 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 20,726 vehicles a day, roughly 10% of them trucks, projected to reach 25,908 by 2042. The structure is 1,364 ft (415.7 m) long and 29 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesIH45 SB to BW8 WB
CrossesIH 45 Sbfr & Bw 8 Wbfr
LocationJct. IH45 & BW8 South
RouteInterstate 45
StateTexas
Coordinates29.60661, -95.20766
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating52 US tons
Inventory rating31 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+10 approach)
Design loadHS 20
Structure length1,364 ft (415.7 m)
Longest span150 ft (45.7 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,726 (2023)
Projected traffic25,908 by 2042
Trucks10%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$89,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH45 SB to BW8 WB over IH 45 Sbfr & Bw 8 Wbfr built?

It was built in 1997, making it 28 years old in 2025.

What condition is IH45 SB to BW8 WB over IH 45 Sbfr & Bw 8 Wbfr 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 November 2024.

How much traffic does IH45 SB to BW8 WB over IH 45 Sbfr & Bw 8 Wbfr carry?

About 20,726 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is IH45 SB to BW8 WB over IH 45 Sbfr & Bw 8 Wbfr?

The structure is 1,364 ft (415.7 m) long with a longest span of 150 ft (45.7 m) and a deck 29 ft wide.

Who owns IH45 SB to BW8 WB over IH 45 Sbfr & Bw 8 Wbfr?

It is owned by the State Highway Agency.