US Bridges

IH10 EB Off-Rp 9-C over Mason Creek

Good

Harris County, Texas · 6.1 MI W of SH 6 · Structure no. 121020027106545

Built
2006
19 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
192 ft
1 main span
Daily traffic
122,000
2011 count
Owner
State
State Highway Agency

About this bridge

IH10 EB Off-Rp 9-C over Mason Creek is a prestressed concrete stringer/multi-beam or girder carrying IH10 EB Off-Rp 9-C over Mason Creek in Harris County, Texas. It was built in 2006, so it is 19 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 122,000 vehicles a day, roughly 9% of them trucks, projected to reach 256,130 by 2029. The structure is 192 ft (58.5 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIH10 EB Off-Rp 9-C
CrossesMason Creek
Location6.1 MI W of SH 6
RouteInterstate 10
CountyHarris County
StateTexas
Coordinates29.78487, -95.7472
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: 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, cast-in-place
Main spans1 (+2 approach)
Design loadHS 25 or greater
Structure length192 ft (58.5 m)
Longest span85 ft (25.9 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic122,000 (2011)
Projected traffic256,130 by 2029
Trucks9%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was IH10 EB Off-Rp 9-C over Mason Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is IH10 EB Off-Rp 9-C over Mason Creek 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 IH10 EB Off-Rp 9-C over Mason Creek carry?

About 122,000 vehicles per day (2011 count), of which roughly 9% are trucks.

How long is IH10 EB Off-Rp 9-C over Mason Creek?

The structure is 192 ft (58.5 m) long with a longest span of 85 ft (25.9 m) and a deck 27 ft wide.

Who owns IH10 EB Off-Rp 9-C over Mason Creek?

It is owned by the State Highway Agency.