US Bridges

SH 105 over Tarkington Bayou

Good

Liberty County, Texas · 4.6 MI E of US 59 · Structure no. 201460059301020

Built
2024
1 years old
Condition
Good
inspected March 2024
Type
Other
Prestressed Concrete
Length
210 ft
5 main spans
Daily traffic
8,500
2022 count
Owner
State
State Highway Agency

About this bridge

SH 105 over Tarkington Bayou is a prestressed concrete other carrying SH 105 over Tarkington Bayou in Liberty County, Texas. It was built in 2024, so it is 1 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,500 vehicles a day, roughly 16% of them trucks, projected to reach 12,100 by 2042. The structure is 210 ft (64 m) long and 61 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesSH 105
CrossesTarkington Bayou
Location4.6 MI E of US 59
RouteState Highway 105
StateTexas
Coordinates30.32155, -95.04364
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeOther
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length210 ft (64 m)
Longest span50 ft (15.2 m)
Deck width61 ft (18.5 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,500 (2022)
Projected traffic12,100 by 2042
Trucks16%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 105 over Tarkington Bayou built?

It was built in 2024, making it 1 years old in 2025.

What condition is SH 105 over Tarkington Bayou in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does SH 105 over Tarkington Bayou carry?

About 8,500 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is SH 105 over Tarkington Bayou?

The structure is 210 ft (64 m) long with a longest span of 50 ft (15.2 m) and a deck 61 ft wide.

Who owns SH 105 over Tarkington Bayou?

It is owned by the State Highway Agency.