US Bridges

SH 103 over Chinquapin Creek

Good

San Augustine County, Texas · 2.00 MI W of US 96 · Structure no. 112030033607029

Built
1956
69 years old, rebuilt 1992
Condition
Good
inspected May 2024
Type
Slab
Concrete Continuous
Length
110 ft
4 main spans
Daily traffic
2,379
2019 count
Owner
State
State Highway Agency

About this bridge

SH 103 over Chinquapin Creek is a concrete continuous slab carrying SH 103 over Chinquapin Creek in San Augustine County, Texas. It was built in 1956 and reconstructed in 1992, so it is 69 years old, older 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 2,379 vehicles a day, roughly 18% of them trucks, projected to reach 2,940 by 2033. The structure is 110 ft (33.5 m) long and 46 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesSH 103
CrossesChinquapin Creek
Location2.00 MI W of US 96
RouteState Highway 103
StateTexas
Coordinates31.40057, -94.09109
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating31 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length110 ft (33.5 m)
Longest span30 ft (9.1 m)
Deck width46 ft (14 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,379 (2019)
Projected traffic2,940 by 2033
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 SH 103 over Chinquapin Creek built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1992.

What condition is SH 103 over Chinquapin Creek 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 May 2024.

How much traffic does SH 103 over Chinquapin Creek carry?

About 2,379 vehicles per day (2019 count), of which roughly 18% are trucks.

How long is SH 103 over Chinquapin Creek?

The structure is 110 ft (33.5 m) long with a longest span of 30 ft (9.1 m) and a deck 46 ft wide.

Who owns SH 103 over Chinquapin Creek?

It is owned by the State Highway Agency.