US Bridges

US 380 over Dbl Mtn Frk Brazos River

Fair

Haskell County, Texas · 3.85 MI W of SH 6 · Structure no. 081050036002026

Built
1941
84 years old, rebuilt 1982
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,270 ft
18 main spans
Daily traffic
753
2020 count
Owner
State
State Highway Agency

About this bridge

US 380 over Dbl Mtn Frk Brazos River is a steel continuous stringer/multi-beam or girder carrying US 380 over Dbl Mtn Frk Brazos River in Haskell County, Texas. It was built in 1941 and reconstructed in 1982, so it is 84 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 753 vehicles a day, roughly 11% of them trucks, projected to reach 1,310 by 2033. The structure is 1,270 ft (387.1 m) long and 50 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesUS 380
CrossesDbl Mtn Frk Brazos River
Location3.85 MI W of SH 6
RouteU.S. Route 380
StateTexas
Coordinates33.18788, -99.96086
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionJune 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 geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating29 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans18 (+2 approach)
Design loadH 15
Structure length1,270 ft (387.1 m)
Longest span75 ft (22.9 m)
Deck width50 ft (15.3 m)
Roadway width49 ft (14.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic753 (2020)
Projected traffic1,310 by 2033
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$153,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 380 over Dbl Mtn Frk Brazos River built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 1982.

What condition is US 380 over Dbl Mtn Frk 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 June 2023.

How much traffic does US 380 over Dbl Mtn Frk Brazos River carry?

About 753 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is US 380 over Dbl Mtn Frk Brazos River?

The structure is 1,270 ft (387.1 m) long with a longest span of 75 ft (22.9 m) and a deck 50 ft wide.

Who owns US 380 over Dbl Mtn Frk Brazos River?

It is owned by the State Highway Agency.