US Bridges

US 380 over Hamby Creek

Good

Young County, Texas · 3.0 MI E FM 578 · Structure no. 032520036102005

Built
1934
91 years old, rebuilt 1973
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
35 ft
4 main spans
Daily traffic
686
2020 count
Owner
State
State Highway Agency

About this bridge

US 380 over Hamby Creek is a concrete culvert carrying US 380 over Hamby Creek in Young County, Texas. It was built in 1934 and reconstructed in 1973, so it is 91 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 686 vehicles a day, roughly 30% of them trucks, projected to reach 960 by 2040. The structure is 35 ft (10.7 m) long and 57 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesUS 380
CrossesHamby Creek
Location3.0 MI E FM 578
RouteU.S. Route 380
StateTexas
Coordinates33.18269, -98.86197
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length35 ft (10.7 m)
Longest span8 ft (2.4 m)
Deck width57 ft (17.5 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic686 (2020)
Projected traffic960 by 2040
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 380 over Hamby Creek built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1973.

What condition is US 380 over Hamby 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 September 2023.

How much traffic does US 380 over Hamby Creek carry?

About 686 vehicles per day (2020 count), of which roughly 30% are trucks.

How long is US 380 over Hamby Creek?

The structure is 35 ft (10.7 m) long with a longest span of 8 ft (2.4 m) and a deck 57 ft wide.

Who owns US 380 over Hamby Creek?

It is owned by the State Highway Agency.