US Bridges

IH 610 Wb/Us 59 SB over IH 610 / US 59

Fair

Harris County, Texas · At US 59 & IH 610 N Loop · Structure no. 121020027114406

Built
1974
51 years old, rebuilt 2000
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
2,162 ft
9 main spans
Daily traffic
6,863
2021 count
Owner
State
State Highway Agency

About this bridge

IH 610 Wb/Us 59 SB over IH 610 / US 59 is a steel continuous stringer/multi-beam or girder carrying IH 610 Wb/Us 59 SB over IH 610 / US 59 in Harris County, Texas. It was built in 1974 and reconstructed in 2000, 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 6,863 vehicles a day, roughly 3% of them trucks, projected to reach 10,294 by 2041. The structure is 2,162 ft (659 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 610 Wb/Us 59 SB
CrossesIH 610 / US 59
LocationAt US 59 & IH 610 N Loop
RouteInterstate 610
StateTexas
Coordinates29.80798, -95.33561
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.6 US tons
Inventory rating35.2 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans9 (+13 approach)
Design loadHS 20
Structure length2,162 ft (659 m)
Longest span131 ft (39.9 m)
Deck width31 ft (9.6 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,863 (2021)
Projected traffic10,294 by 2041
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesFourth level (interchange)
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 610 Wb/Us 59 SB over IH 610 / US 59 built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2000.

What condition is IH 610 Wb/Us 59 SB over IH 610 / US 59 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 October 2024.

How much traffic does IH 610 Wb/Us 59 SB over IH 610 / US 59 carry?

About 6,863 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is IH 610 Wb/Us 59 SB over IH 610 / US 59?

The structure is 2,162 ft (659 m) long with a longest span of 131 ft (39.9 m) and a deck 31 ft wide.

Who owns IH 610 Wb/Us 59 SB over IH 610 / US 59?

It is owned by the State Highway Agency.