US Bridges

IH10 EB to SH99 SB over IH10 & SH99 Frs & Ramps

Fair

Harris County, Texas · At IH 10 & SH 99 Int · Structure no. 121020027106663

Built
2014
11 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
3,464 ft
32 main spans
Daily traffic
9,000
2012 count
Owner
State
State Highway Agency

About this bridge

IH10 EB to SH99 SB over IH10 & SH99 Frs & Ramps is a prestressed concrete stringer/multi-beam or girder carrying IH10 EB to SH99 SB over IH10 & SH99 Frs & Ramps in Harris County, Texas. It was built in 2014, so it is 11 years old, younger 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 9,000 vehicles a day, roughly 7% of them trucks, projected to reach 13,300 by 2032. The structure is 3,464 ft (1,055.8 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIH10 EB to SH99 SB
CrossesIH10 & SH99 Frs & Ramps
LocationAt IH 10 & SH 99 Int
RouteInterstate 10
CountyHarris County
StateTexas
Coordinates29.78506, -95.77903
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to 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 typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans32 (+2 approach)
Design loadHL 93
Structure length3,464 ft (1,055.8 m)
Longest span115 ft (35.1 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,000 (2012)
Projected traffic13,300 by 2032
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesThird level (interchange)
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkSTRAHNET connector

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 IH10 EB to SH99 SB over IH10 & SH99 Frs & Ramps built?

It was built in 2014, making it 11 years old in 2025.

What condition is IH10 EB to SH99 SB over IH10 & SH99 Frs & Ramps 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 September 2024.

How much traffic does IH10 EB to SH99 SB over IH10 & SH99 Frs & Ramps carry?

About 9,000 vehicles per day (2012 count), of which roughly 7% are trucks.

How long is IH10 EB to SH99 SB over IH10 & SH99 Frs & Ramps?

The structure is 3,464 ft (1,055.8 m) long with a longest span of 115 ft (35.1 m) and a deck 38 ft wide.

Who owns IH10 EB to SH99 SB over IH10 & SH99 Frs & Ramps?

It is owned by the State Highway Agency.