US Bridges

IH 10 Wb/Ih 610 SB over IH 10 & IH610

Fair

Harris County, Texas · IH 10/IH 610 Interchange · Structure no. 121020050801380

Built
1974
51 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
614 ft
4 main spans
Daily traffic
20,160
2011 count
Owner
State
State Highway Agency

About this bridge

IH 10 Wb/Ih 610 SB over IH 10 & IH610 is a steel continuous stringer/multi-beam or girder carrying IH 10 Wb/Ih 610 SB over IH 10 & IH610 in Harris County, Texas. It was built in 1974, 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 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 20,160 vehicles a day, roughly 9% of them trucks, projected to reach 31,640 by 2031. The structure is 614 ft (187.1 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesIH 10 Wb/Ih 610 SB
CrossesIH 10 & IH610
LocationIH 10/IH 610 Interchange
RouteInterstate 10
CountyHarris County
StateTexas
Coordinates29.77554, -95.26366
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4 (+4 approach)
Design loadHS 20
Structure length614 ft (187.1 m)
Longest span95 ft (29 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck17 ft (5.3 m)

Traffic and service

Average daily traffic20,160 (2011)
Projected traffic31,640 by 2031
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesThird level (interchange)
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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$46,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 10 Wb/Ih 610 SB over IH 10 & IH610 built?

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

What condition is IH 10 Wb/Ih 610 SB over IH 10 & IH610 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 November 2024.

How much traffic does IH 10 Wb/Ih 610 SB over IH 10 & IH610 carry?

About 20,160 vehicles per day (2011 count), of which roughly 9% are trucks.

How long is IH 10 Wb/Ih 610 SB over IH 10 & IH610?

The structure is 614 ft (187.1 m) long with a longest span of 95 ft (29 m) and a deck 32 ft wide.

Who owns IH 10 Wb/Ih 610 SB over IH 10 & IH610?

It is owned by the State Highway Agency.