US Bridges

SH99 SB to IH10 WB over IH10 EX-RP/WBFR/SH99SBFR

Good

Harris County, Texas · At IH 10 & SH 99 Int · Structure no. 121020027106688

Built
2014
11 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
2,120 ft
13 main spans
Daily traffic
1,700
2012 count
Owner
State
State Highway Agency

About this bridge

SH99 SB to IH10 WB over IH10 EX-RP/WBFR/SH99SBFR is a prestressed concrete stringer/multi-beam or girder carrying SH99 SB to IH10 WB over IH10 EX-RP/WBFR/SH99SBFR 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 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 1,700 vehicles a day, projected to reach 2,500 by 2032. The structure is 2,120 ft (646.2 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSH99 SB to IH10 WB
CrossesIH10 EX-RP/WBFR/SH99SBFR
LocationAt IH 10 & SH 99 Int
RouteState Highway 99
CountyHarris County
StateTexas
Coordinates29.78754, -95.77774
Functional classUrban Other Principal Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable 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 spans13 (+9 approach)
Design loadHL 93
Structure length2,120 ft (646.2 m)
Longest span120 ft (36.6 m)
Deck width38 ft (11.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2012)
Projected traffic2,500 by 2032
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 SH99 SB to IH10 WB over IH10 EX-RP/WBFR/SH99SBFR built?

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

What condition is SH99 SB to IH10 WB over IH10 EX-RP/WBFR/SH99SBFR 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 SH99 SB to IH10 WB over IH10 EX-RP/WBFR/SH99SBFR carry?

About 1,700 vehicles per day (2012 count).

How long is SH99 SB to IH10 WB over IH10 EX-RP/WBFR/SH99SBFR?

The structure is 2,120 ft (646.2 m) long with a longest span of 120 ft (36.6 m) and a deck 38 ft wide.

Who owns SH99 SB to IH10 WB over IH10 EX-RP/WBFR/SH99SBFR?

It is owned by the State Highway Agency.