US Bridges

SH 146 NB on Rp over Little Cedar Bayou

Fair

Harris County, Texas · 3.6MI N of UP RR Spur Etc · Structure no. 121020038905053

Built
1969
56 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
145 ft
3 main spans
Daily traffic
6,985
2024 count
Owner
State
State Highway Agency

About this bridge

SH 146 NB on Rp over Little Cedar Bayou is a prestressed concrete stringer/multi-beam or girder carrying SH 146 NB on Rp over Little Cedar Bayou in Harris County, Texas. It was built in 1969, so it is 56 years old, older 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 6,985 vehicles a day, roughly 8% of them trucks, projected to reach 6,210 by 2033. The structure is 145 ft (44.2 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSH 146 NB on Rp
CrossesLittle Cedar Bayou
Location3.6MI N of UP RR Spur Etc
RouteState Highway 146
CountyHarris County
StateTexas
Coordinates29.65548, -95.02972
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: 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 spans3
Design loadHS 20
Structure length145 ft (44.2 m)
Longest span54 ft (16.5 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,985 (2024)
Projected traffic6,210 by 2033
Trucks8%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 146 NB on Rp over Little Cedar Bayou built?

It was built in 1969, making it 56 years old in 2025.

What condition is SH 146 NB on Rp over Little Cedar Bayou 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 November 2024.

How much traffic does SH 146 NB on Rp over Little Cedar Bayou carry?

About 6,985 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is SH 146 NB on Rp over Little Cedar Bayou?

The structure is 145 ft (44.2 m) long with a longest span of 54 ft (16.5 m) and a deck 26 ft wide.

Who owns SH 146 NB on Rp over Little Cedar Bayou?

It is owned by the State Highway Agency.