US Bridges

FM 3426 over Big Sandy Creek

Fair

Lamar County, Texas · 1.0 MI W of FM 905 · Structure no. 011390131902010

Built
1986
39 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
210 ft
3 main spans
Daily traffic
281
2020 count
Owner
State
State Highway Agency

About this bridge

FM 3426 over Big Sandy Creek is a prestressed concrete stringer/multi-beam or girder carrying FM 3426 over Big Sandy Creek in Lamar County, Texas. It was built in 1986, so it is 39 years old, younger 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 281 vehicles a day, roughly 5% of them trucks, projected to reach 337 by 2039. The structure is 210 ft (64 m) long and 30 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesFM 3426
CrossesBig Sandy Creek
Location1.0 MI W of FM 905
RouteState Highway 3426
CountyLamar County
StateTexas
Coordinates33.54318, -95.46219
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length210 ft (64 m)
Longest span70 ft (21.3 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic281 (2020)
Projected traffic337 by 2039
Trucks5%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 3426 over Big Sandy Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is FM 3426 over Big Sandy 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 September 2024.

How much traffic does FM 3426 over Big Sandy Creek carry?

About 281 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is FM 3426 over Big Sandy Creek?

The structure is 210 ft (64 m) long with a longest span of 70 ft (21.3 m) and a deck 30 ft wide.

Who owns FM 3426 over Big Sandy Creek?

It is owned by the State Highway Agency.