US Bridges

North ST over IH 45

Fair

Harris County, Texas · 0.75 MI N of IH 10 · Structure no. 121020050003114

Built
1961
64 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
270 ft
2 main spans
Daily traffic
1,210
2016 count
Owner
State
State Highway Agency

About this bridge

North ST over IH 45 is a steel continuous stringer/multi-beam or girder carrying North ST over IH 45 in Harris County, Texas. It was built in 1961, so it is 64 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 5 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 1,210 vehicles a day, projected to reach 1,210 by 2036. The structure is 270 ft (82.3 m) long and 39 ft wide.

Location

Open in Google Maps
CarriesNorth ST
CrossesIH 45
Location0.75 MI N of IH 10
RouteCity Street 0
CountyHarris County
StateTexas
Coordinates29.78546, -95.36965
Functional classUrban Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadH 20
Structure length270 ft (82.3 m)
Longest span83 ft (25.3 m)
Deck width39 ft (11.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,210 (2016)
Projected traffic1,210 by 2036
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$19,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was North ST over IH 45 built?

It was built in 1961, making it 64 years old in 2025.

What condition is North ST over IH 45 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 August 2024.

How much traffic does North ST over IH 45 carry?

About 1,210 vehicles per day (2016 count).

How long is North ST over IH 45?

The structure is 270 ft (82.3 m) long with a longest span of 83 ft (25.3 m) and a deck 39 ft wide.

Who owns North ST over IH 45?

It is owned by the State Highway Agency.