US Bridges

US 59 SB On-Ramp over US59 SB Conn to IH10 WB

Good

Harris County, Texas · At US59/IH10 Interchange · Structure no. 121020017711284

Built
2003
22 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
674 ft
6 main spans
Daily traffic
20,620
2010 count
Owner
State
State Highway Agency

About this bridge

US 59 SB On-Ramp over US59 SB Conn to IH10 WB is a prestressed concrete stringer/multi-beam or girder carrying US 59 SB On-Ramp over US59 SB Conn to IH10 WB in Harris County, Texas. It was built in 2003, so it is 22 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 20,620 vehicles a day, roughly 5% of them trucks, projected to reach 40,440 by 2027. The structure is 674 ft (205.4 m) long and 29 ft wide.

CarriesUS 59 SB On-Ramp
CrossesUS59 SB Conn to IH10 WB
LocationAt US59/IH10 Interchange
RouteU.S. Route 59
StateTexas
Coordinates29.77188, -95.34085
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length674 ft (205.4 m)
Longest span130 ft (39.6 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,620 (2010)
Projected traffic40,440 by 2027
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 US 59 SB On-Ramp over US59 SB Conn to IH10 WB built?

It was built in 2003, making it 22 years old in 2025.

What condition is US 59 SB On-Ramp over US59 SB Conn to IH10 WB 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 September 2024.

How much traffic does US 59 SB On-Ramp over US59 SB Conn to IH10 WB carry?

About 20,620 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is US 59 SB On-Ramp over US59 SB Conn to IH10 WB?

The structure is 674 ft (205.4 m) long with a longest span of 130 ft (39.6 m) and a deck 29 ft wide.

Who owns US 59 SB On-Ramp over US59 SB Conn to IH10 WB?

It is owned by the State Highway Agency.