US Bridges

SH 146 over Missouri ST

Fair

Harris County, Texas · 0.30 MI NE of SH 146 Bus · Structure no. 121020038913106

Built
1996
29 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
300 ft
3 main spans
Daily traffic
62,011
2023 count
Owner
State
State Highway Agency

About this bridge

SH 146 over Missouri ST is a prestressed concrete stringer/multi-beam or girder carrying SH 146 over Missouri ST in Harris County, Texas. It was built in 1996, so it is 29 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 5 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 62,011 vehicles a day, roughly 17% of them trucks, projected to reach 84,335 by 2042. The structure is 300 ft (91.4 m) long and 121 ft wide.

Location

Open in Google Maps
CarriesSH 146
CrossesMissouri ST
Location0.30 MI NE of SH 146 Bus
RouteState Highway 146
CountyHarris County
StateTexas
Coordinates29.71662, -94.99747
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: 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, cast-in-place
Main spans3
Design loadHS 20
Structure length300 ft (91.4 m)
Longest span98 ft (29.9 m)
Deck width121 ft (36.9 m)
Roadway width116 ft (35.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62,011 (2023)
Projected traffic84,335 by 2042
Trucks17%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 146 over Missouri ST built?

It was built in 1996, making it 29 years old in 2025.

What condition is SH 146 over Missouri ST 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 October 2024.

How much traffic does SH 146 over Missouri ST carry?

About 62,011 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is SH 146 over Missouri ST?

The structure is 300 ft (91.4 m) long with a longest span of 98 ft (29.9 m) and a deck 121 ft wide.

Who owns SH 146 over Missouri ST?

It is owned by the State Highway Agency.