US Bridges

SH 99 Ebml over Bus 146

Good

Harris County, Texas · 2.4 MI E of SH 146 · Structure no. 121020318701014

Built
2022
3 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
273 ft
2 main spans
Daily traffic
9,594
2023 count
Owner
State
State Highway Agency

About this bridge

SH 99 Ebml over Bus 146 is a prestressed concrete stringer/multi-beam or girder carrying SH 99 Ebml over Bus 146 in Harris County, Texas. It was built in 2022, so it is 3 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 9,594 vehicles a day, roughly 16% of them trucks, projected to reach 13,431 by 2042. The structure is 273 ft (83.1 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSH 99 Ebml
CrossesBus 146
Location2.4 MI E of SH 146
RouteState Highway 99
StateTexas
Coordinates29.72128, -94.96049
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum 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 spans2 (+1 approach)
Design loadHL 93
Structure length273 ft (83.1 m)
Longest span112 ft (34.1 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,594 (2023)
Projected traffic13,431 by 2042
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 SH 99 Ebml over Bus 146 built?

It was built in 2022, making it 3 years old in 2025.

What condition is SH 99 Ebml over Bus 146 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 SH 99 Ebml over Bus 146 carry?

About 9,594 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is SH 99 Ebml over Bus 146?

The structure is 273 ft (83.1 m) long with a longest span of 112 ft (34.1 m) and a deck 40 ft wide.

Who owns SH 99 Ebml over Bus 146?

It is owned by the State Highway Agency.