US Bridges

FM 1639 over Helton Creek

Fair

Gregg County, Texas · 0.55 MI SW of SH 31 · Structure no. 100930160801005

Built
1936
89 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
634
2020 count
Owner
State
State Highway Agency

About this bridge

FM 1639 over Helton Creek is a concrete culvert carrying FM 1639 over Helton Creek in Gregg County, Texas. It was built in 1936, so it is 89 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 634 vehicles a day, roughly 9% of them trucks, projected to reach 980 by 2033. The structure is 32 ft (9.8 m) long and 37 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM 1639
CrossesHelton Creek
Location0.55 MI SW of SH 31
RouteState Highway 1639
StateTexas
Coordinates32.37894, -94.93582
Functional classRural Minor Collector

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width37 ft (11.4 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic634 (2020)
Projected traffic980 by 2033
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 FM 1639 over Helton Creek built?

It was built in 1936, making it 89 years old in 2025.

What condition is FM 1639 over Helton 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 November 2024.

How much traffic does FM 1639 over Helton Creek carry?

About 634 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is FM 1639 over Helton Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 37 ft wide.

Who owns FM 1639 over Helton Creek?

It is owned by the State Highway Agency.