US Bridges

IH 610W SB On-Ramp over US 59 Etc

Fair

Harris County, Texas · IH 610W at US 59 · Structure no. 121020027117530

Built
2004
21 years old
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Multiple
Steel Continuous
Length
2,202 ft
8 main spans
Daily traffic
9,014
2021 count
Owner
State
State Highway Agency

About this bridge

IH 610W SB On-Ramp over US 59 Etc is a steel continuous box beam or girders - multiple carrying IH 610W SB On-Ramp over US 59 Etc in Harris County, Texas. It was built in 2004, so it is 21 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 9,014 vehicles a day, roughly 5% of them trucks, projected to reach 27,080 by 2033. The structure is 2,202 ft (671.2 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIH 610W SB On-Ramp
CrossesUS 59 Etc
LocationIH 610W at US 59
CountyHarris County
StateTexas
Coordinates29.73247, -95.46047
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.
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 rating60 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans8 (+3 approach)
Design loadHS 25 or greater
Structure length2,202 ft (671.2 m)
Longest span270 ft (82.3 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,014 (2021)
Projected traffic27,080 by 2033
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesFourth level (interchange)
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo
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 610W SB On-Ramp over US 59 Etc built?

It was built in 2004, making it 21 years old in 2025.

What condition is IH 610W SB On-Ramp over US 59 Etc 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 IH 610W SB On-Ramp over US 59 Etc carry?

About 9,014 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is IH 610W SB On-Ramp over US 59 Etc?

The structure is 2,202 ft (671.2 m) long with a longest span of 270 ft (82.3 m) and a deck 26 ft wide.

Who owns IH 610W SB On-Ramp over US 59 Etc?

It is owned by the State Highway Agency.