US Bridges

IH 610WNB Off-Ramp over US 59 & Richmond Ave

Good

Harris County, Texas · IH 610W at US 59 · Structure no. 121020027117529

Built
2004
21 years old
Condition
Good
inspected December 2024
Type
Box Beam or Girders - Multiple
Steel Continuous
Length
1,819 ft
8 main spans
Daily traffic
15,000
2010 count
Owner
State
State Highway Agency

About this bridge

IH 610WNB Off-Ramp over US 59 & Richmond Ave is a steel continuous box beam or girders - multiple carrying IH 610WNB Off-Ramp over US 59 & Richmond Ave 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15,000 vehicles a day, roughly 7% of them trucks, projected to reach 360,000 by 2028. The structure is 1,819 ft (554.4 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIH 610WNB Off-Ramp
CrossesUS 59 & Richmond Ave
LocationIH 610W at US 59
CountyHarris County
StateTexas
Coordinates29.73042, -95.45957
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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 (+1 approach)
Design loadHS 25 or greater
Structure length1,819 ft (554.4 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 traffic15,000 (2010)
Projected traffic360,000 by 2028
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesFourth level (interchange)
CrossesHighway
Detour if closed1.2 mi (2 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 610WNB Off-Ramp over US 59 & Richmond Ave built?

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

What condition is IH 610WNB Off-Ramp over US 59 & Richmond Ave in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does IH 610WNB Off-Ramp over US 59 & Richmond Ave carry?

About 15,000 vehicles per day (2010 count), of which roughly 7% are trucks.

How long is IH 610WNB Off-Ramp over US 59 & Richmond Ave?

The structure is 1,819 ft (554.4 m) long with a longest span of 270 ft (82.3 m) and a deck 26 ft wide.

Who owns IH 610WNB Off-Ramp over US 59 & Richmond Ave?

It is owned by the State Highway Agency.