US Bridges

IH 610 EB over North Main ST

Fair

Harris County, Texas · 3.80 MI E of US 290 · Structure no. 121020027114074

Built
1963
62 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
215 ft
3 main spans
Daily traffic
97,129
2019 count
Owner
State
State Highway Agency

About this bridge

IH 610 EB over North Main ST is a steel continuous stringer/multi-beam or girder carrying IH 610 EB over North Main ST in Harris County, Texas. It was built in 1963, so it is 62 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 97,129 vehicles a day, roughly 9% of them trucks, projected to reach 104,480 by 2033. The structure is 215 ft (65.5 m) long and 69 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIH 610 EB
CrossesNorth Main ST
Location3.80 MI E of US 290
RouteInterstate 610
CountyHarris County
StateTexas
Coordinates29.81387, -95.39155
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.
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating39 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length215 ft (65.5 m)
Longest span85 ft (25.9 m)
Deck width69 ft (21.1 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic97,129 (2019)
Projected traffic104,480 by 2033
Trucks9%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$366,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 610 EB over North Main ST built?

It was built in 1963, making it 62 years old in 2025.

What condition is IH 610 EB over North Main ST 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 IH 610 EB over North Main ST carry?

About 97,129 vehicles per day (2019 count), of which roughly 9% are trucks.

How long is IH 610 EB over North Main ST?

The structure is 215 ft (65.5 m) long with a longest span of 85 ft (25.9 m) and a deck 69 ft wide.

Who owns IH 610 EB over North Main ST?

It is owned by the State Highway Agency.