US Bridges

Gray ST over IH 69

Fair

Harris County, Texas · 0.05 MI S of IH 45 · Structure no. 121020002713117

Built
1975
50 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
275 ft
2 main spans
Daily traffic
1,720
2015 count
Owner
State
State Highway Agency

About this bridge

Gray ST over IH 69 is a prestressed concrete stringer/multi-beam or girder carrying Gray ST over IH 69 in Harris County, Texas. It was built in 1975, so it is 50 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 1,720 vehicles a day, projected to reach 1,720 by 2035. The structure is 275 ft (83.8 m) long and 68 ft wide.

Location

Open in Google Maps
CarriesGray ST
CrossesIH 69
Location0.05 MI S of IH 45
RouteCity Street 0
CountyHarris County
StateTexas
Coordinates29.74377, -95.36332
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionDecember 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 rating52 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+4 approach)
Design loadH 20
Structure length275 ft (83.8 m)
Longest span71 ft (21.6 m)
Deck width68 ft (20.8 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deck17 ft (5.3 m)

Traffic and service

Average daily traffic1,720 (2015)
Projected traffic1,720 by 2035
Trucks0%
Lanes on structure3
Traffic directionOne-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$38,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Gray ST over IH 69 built?

It was built in 1975, making it 50 years old in 2025.

What condition is Gray ST over IH 69 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 Gray ST over IH 69 carry?

About 1,720 vehicles per day (2015 count).

How long is Gray ST over IH 69?

The structure is 275 ft (83.8 m) long with a longest span of 71 ft (21.6 m) and a deck 68 ft wide.

Who owns Gray ST over IH 69?

It is owned by the State Highway Agency.