US Bridges

IH45NB to IH 69SB over IH45SB; IH 69NB; Streets

Fair

Harris County, Texas · IH 45 at IH 69 · Structure no. 121020050003540

Built
1974
51 years old, rebuilt 2020
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
2,239 ft
3 main spans
Daily traffic
54,300
2016 count
Owner
State
State Highway Agency

About this bridge

IH45NB to IH 69SB over IH45SB; IH 69NB; Streets is a steel continuous stringer/multi-beam or girder carrying IH45NB to IH 69SB over IH45SB; IH 69NB; Streets in Harris County, Texas. It was built in 1974 and reconstructed in 2020, so it is 51 years old, older 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 54,300 vehicles a day, roughly 10% of them trucks, projected to reach 75,600 by 2036. The structure is 2,239 ft (682.4 m) long and 30 ft wide.

Location

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CarriesIH45NB to IH 69SB
CrossesIH45SB; IH 69NB; Streets
LocationIH 45 at IH 69
RouteInterstate 45
CountyHarris County
StateTexas
Coordinates29.74283, -95.35838
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+16 approach)
Design loadHS 20
Structure length2,239 ft (682.4 m)
Longest span203 ft (61.9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54,300 (2016)
Projected traffic75,600 by 2036
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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 IH45NB to IH 69SB over IH45SB; IH 69NB; Streets built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2020.

What condition is IH45NB to IH 69SB over IH45SB; IH 69NB; Streets 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 December 2024.

How much traffic does IH45NB to IH 69SB over IH45SB; IH 69NB; Streets carry?

About 54,300 vehicles per day (2016 count), of which roughly 10% are trucks.

How long is IH45NB to IH 69SB over IH45SB; IH 69NB; Streets?

The structure is 2,239 ft (682.4 m) long with a longest span of 203 ft (61.9 m) and a deck 30 ft wide.

Who owns IH45NB to IH 69SB over IH45SB; IH 69NB; Streets?

It is owned by the State Highway Agency.