US Bridges

FM 1431 over Big Sandy Creek

Good

Travis County, Texas · 5.5 MI W of US 183 · Structure no. 142270137801021

Built
1982
43 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
160 ft
2 main spans
Daily traffic
19,825
2020 count
Owner
State
State Highway Agency

About this bridge

FM 1431 over Big Sandy Creek is a prestressed concrete stringer/multi-beam or girder carrying FM 1431 over Big Sandy Creek in Travis County, Texas. It was built in 1982, so it is 43 years old, younger 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 19,825 vehicles a day, roughly 4% of them trucks, projected to reach 29,955 by 2039. The structure is 160 ft (48.8 m) long and 58 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesFM 1431
CrossesBig Sandy Creek
Location5.5 MI W of US 183
RouteState Highway 1431
StateTexas
Coordinates30.51633, -97.90875
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span80 ft (24.4 m)
Deck width58 ft (17.7 m)
Roadway width56 ft (17 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,825 (2020)
Projected traffic29,955 by 2039
Trucks4%
Lanes on structure4
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 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 1431 over Big Sandy Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is FM 1431 over Big Sandy 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 January 2025.

How much traffic does FM 1431 over Big Sandy Creek carry?

About 19,825 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is FM 1431 over Big Sandy Creek?

The structure is 160 ft (48.8 m) long with a longest span of 80 ft (24.4 m) and a deck 58 ft wide.

Who owns FM 1431 over Big Sandy Creek?

It is owned by the State Highway Agency.