US Bridges

US 380 over Salt Fork Brazos River

Fair

Stonewall County, Texas · 5.21 MI E of Kent C/L · Structure no. 082170010604043

Built
1937
88 years old, rebuilt 1988
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
1,198 ft
23 main spans
Daily traffic
697
2020 count
Owner
State
State Highway Agency

About this bridge

US 380 over Salt Fork Brazos River is a steel stringer/multi-beam or girder carrying US 380 over Salt Fork Brazos River in Stonewall County, Texas. It was built in 1937 and reconstructed in 1988, so it is 88 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 5 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 697 vehicles a day, roughly 15% of them trucks, projected to reach 960 by 2033. The structure is 1,198 ft (365.2 m) long and 42 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

CarriesUS 380
CrossesSalt Fork Brazos River
Location5.21 MI E of Kent C/L
RouteU.S. Route 380
StateTexas
Coordinates33.21223, -100.4342
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans23
Design loadHS 20
Structure length1,198 ft (365.2 m)
Longest span52 ft (15.9 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic697 (2020)
Projected traffic960 by 2033
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.3 mi (60 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was US 380 over Salt Fork Brazos River built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1988.

What condition is US 380 over Salt Fork Brazos River 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 2023.

How much traffic does US 380 over Salt Fork Brazos River carry?

About 697 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is US 380 over Salt Fork Brazos River?

The structure is 1,198 ft (365.2 m) long with a longest span of 52 ft (15.9 m) and a deck 42 ft wide.

Who owns US 380 over Salt Fork Brazos River?

It is owned by the State Highway Agency.