US Bridges

Preston Ave over Little Vince Bayou

Fair

Harris County, Texas · 0.70 MI N of Spencer HWY · Structure no. 121020C02566001

Built
1975
50 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
33 ft
1 main span
Daily traffic
13,880
2011 count
Owner
County
County Highway Agency

About this bridge

Preston Ave over Little Vince Bayou is a prestressed concrete box beam or girders - multiple carrying Preston Ave over Little Vince Bayou in Harris County, Texas. It was built in 1975, so it is 50 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 13,880 vehicles a day, projected to reach 15,000 by 2031. The structure is 33 ft (10.1 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesPreston Ave
CrossesLittle Vince Bayou
Location0.70 MI N of Spencer HWY
RouteCity Street 0
CountyHarris County
StateTexas
Coordinates29.67504, -95.17243
Functional classUrban Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
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 typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span31 ft (9.4 m)
Deck width60 ft (18.2 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,880 (2011)
Projected traffic15,000 by 2031
Trucks0%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Preston Ave over Little Vince Bayou built?

It was built in 1975, making it 50 years old in 2025.

What condition is Preston Ave over Little Vince 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 August 2023.

How much traffic does Preston Ave over Little Vince Bayou carry?

About 13,880 vehicles per day (2011 count).

How long is Preston Ave over Little Vince Bayou?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 60 ft wide.

Who owns Preston Ave over Little Vince Bayou?

It is owned by the County Highway Agency.