US Bridges

SH 31 over Duncan Creek

Fair

Henderson County, Texas · 1.3 MI E of FM 773 · Structure no. 101080016402004

Built
1930
95 years old, rebuilt 1976
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
55 ft
2 main spans
Daily traffic
10,234
2018 count
Owner
State
State Highway Agency

About this bridge

SH 31 over Duncan Creek is a concrete culvert carrying SH 31 over Duncan Creek in Henderson County, Texas. It was built in 1930 and reconstructed in 1976, so it is 95 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 6 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 10,234 vehicles a day, roughly 18% of them trucks, projected to reach 13,620 by 2033. The structure is 55 ft (16.8 m) long and 182 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSH 31
CrossesDuncan Creek
Location1.3 MI E of FM 773
RouteState Highway 31
CountyHenderson County
StateTexas
Coordinates32.28301, -95.72929
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 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
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
DeckNot applicable
Main spans2
Design loadH 15
Structure length55 ft (16.8 m)
Longest span10 ft (3 m)
Deck width182 ft (55.6 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,234 (2018)
Projected traffic13,620 by 2033
Trucks18%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 31 over Duncan Creek built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1976.

What condition is SH 31 over Duncan Creek 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 February 2023.

How much traffic does SH 31 over Duncan Creek carry?

About 10,234 vehicles per day (2018 count), of which roughly 18% are trucks.

How long is SH 31 over Duncan Creek?

The structure is 55 ft (16.8 m) long with a longest span of 10 ft (3 m) and a deck 182 ft wide.

Who owns SH 31 over Duncan Creek?

It is owned by the State Highway Agency.