US Bridges

Sl 573 NB over Little Tarkington Bayou

Fair

Liberty County, Texas · 1.1 MI NE of FM 2025 · Structure no. 201460017704017

Built
1925
100 years old, rebuilt 1946
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
81 ft
9 main spans
Daily traffic
2,570
2022 count
Owner
State
State Highway Agency

About this bridge

Sl 573 NB over Little Tarkington Bayou is a concrete culvert carrying Sl 573 NB over Little Tarkington Bayou in Liberty County, Texas. It was built in 1925 and reconstructed in 1946, so it is 100 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 2,570 vehicles a day, roughly 14% of them trucks, projected to reach 3,342 by 2042. The structure is 81 ft (24.7 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSl 573 NB
CrossesLittle Tarkington Bayou
Location1.1 MI NE of FM 2025
RouteState Highway 573
CountyLiberty County
StateTexas
Coordinates30.36433, -95.07639
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39 US tons
Inventory rating23 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadH 15
Structure length81 ft (24.7 m)
Longest span8 ft (2.4 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,570 (2022)
Projected traffic3,342 by 2042
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 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 Sl 573 NB over Little Tarkington Bayou built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1946.

What condition is Sl 573 NB over Little Tarkington 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 March 2024.

How much traffic does Sl 573 NB over Little Tarkington Bayou carry?

About 2,570 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is Sl 573 NB over Little Tarkington Bayou?

The structure is 81 ft (24.7 m) long with a longest span of 8 ft (2.4 m) and a deck 46 ft wide.

Who owns Sl 573 NB over Little Tarkington Bayou?

It is owned by the State Highway Agency.