US Bridges

From Rp C to IH610 over West 18 ST EB

Good

Harris County, Texas · IH610 and W 18th ST · Structure no. 121020027114692

Built
2017
8 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,073 ft
9 main spans
Daily traffic
26,750
2011 count
Owner
State
State Highway Agency

About this bridge

From Rp C to IH610 over West 18 ST EB is a prestressed concrete stringer/multi-beam or girder carrying From Rp C to IH610 over West 18 ST EB in Harris County, Texas. It was built in 2017, so it is 8 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 26,750 vehicles a day, roughly 1% of them trucks, projected to reach 32,090 by 2031. The structure is 1,073 ft (327.1 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFrom Rp C to IH610
CrossesWest 18 ST EB
LocationIH610 and W 18th ST
RouteInterstate 0
StateTexas
Coordinates29.80043, -95.44921
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans9
Design loadHL 93
Structure length1,073 ft (327.1 m)
Longest span120 ft (36.6 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,750 (2011)
Projected traffic32,090 by 2031
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was From Rp C to IH610 over West 18 ST EB built?

It was built in 2017, making it 8 years old in 2025.

What condition is From Rp C to IH610 over West 18 ST EB 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 August 2024.

How much traffic does From Rp C to IH610 over West 18 ST EB carry?

About 26,750 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is From Rp C to IH610 over West 18 ST EB?

The structure is 1,073 ft (327.1 m) long with a longest span of 120 ft (36.6 m) and a deck 42 ft wide.

Who owns From Rp C to IH610 over West 18 ST EB?

It is owned by the State Highway Agency.