US Bridges

IH 45 Hov over IH 45 Sbml

Fair

Harris County, Texas · 1.34 MI N of Greens Bayou · Structure no. 121020011005172

Built
1997
28 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
2,048 ft
3 main spans
Daily traffic
9,600
2021 count
Owner
State
State Highway Agency

About this bridge

IH 45 Hov over IH 45 Sbml is a steel continuous stringer/multi-beam or girder carrying IH 45 Hov over IH 45 Sbml 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 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 9,600 vehicles a day, roughly 3% of them trucks, projected to reach 14,400 by 2041. The structure is 2,048 ft (624.2 m) long and 23 ft wide.

Location

Open in Google Maps
CarriesIH 45 Hov
CrossesIH 45 Sbml
Location1.34 MI N of Greens Bayou
RouteInterstate 45
CountyHarris County
StateTexas
Coordinates29.97469, -95.42124
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+19 approach)
Design loadHS 20
Structure length2,048 ft (624.2 m)
Longest span100 ft (30.5 m)
Deck width23 ft (7.1 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,600 (2021)
Projected traffic14,400 by 2041
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
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 Hov over IH 45 Sbml built?

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

What condition is IH 45 Hov over IH 45 Sbml 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 October 2024.

How much traffic does IH 45 Hov over IH 45 Sbml carry?

About 9,600 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is IH 45 Hov over IH 45 Sbml?

The structure is 2,048 ft (624.2 m) long with a longest span of 100 ft (30.5 m) and a deck 23 ft wide.

Who owns IH 45 Hov over IH 45 Sbml?

It is owned by the State Highway Agency.