US Bridges

SH 146 NB over Spur 330

Fair

Harris County, Texas · At Int SH 146 & Spur 330 · Structure no. 121020038913269

Built
1982
43 years old
Condition
Fair
inspected August 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
334 ft
4 main spans
Daily traffic
38,435
2019 count
Owner
State
State Highway Agency

About this bridge

SH 146 NB over Spur 330 is a prestressed concrete stringer/multi-beam or girder carrying SH 146 NB over Spur 330 in Harris County, Texas. It was built in 1982, so it is 43 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 38,435 vehicles a day, roughly 7% of them trucks, projected to reach 22,450 by 2033. The structure is 334 ft (101.8 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSH 146 NB
CrossesSpur 330
LocationAt Int SH 146 & Spur 330
RouteState Highway 146
CountyHarris County
StateTexas
Coordinates29.74664, -94.98622
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum 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

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length334 ft (101.8 m)
Longest span84 ft (25.6 m)
Deck width57 ft (17.4 m)
Roadway width54 ft (16.6 m)
Vertical clearance over deck29 ft (8.9 m)

Traffic and service

Average daily traffic38,435 (2019)
Projected traffic22,450 by 2033
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 146 NB over Spur 330 built?

It was built in 1982, making it 43 years old in 2025.

What condition is SH 146 NB over Spur 330 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 August 2022.

How much traffic does SH 146 NB over Spur 330 carry?

About 38,435 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is SH 146 NB over Spur 330?

The structure is 334 ft (101.8 m) long with a longest span of 84 ft (25.6 m) and a deck 57 ft wide.

Who owns SH 146 NB over Spur 330?

It is owned by the State Highway Agency.