US Bridges

CR 431 over Long Branch

Fair

Williamson County, Texas · 0.30 MI S of US 79 · Structure no. 142460AA0359001

Built
1986
39 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
47 ft
1 main span
Daily traffic
180
2010 count
Owner
County
County Highway Agency

About this bridge

CR 431 over Long Branch is a steel stringer/multi-beam or girder carrying CR 431 over Long Branch in Williamson 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 180 vehicles a day, roughly 2% of them trucks, projected to reach 220 by 2027. The structure is 47 ft (14.3 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCR 431
CrossesLong Branch
Location0.30 MI S of US 79
RouteCounty Highway 431
CountyWilliamson County
StateTexas
Coordinates30.57885, -97.33328
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: 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 rating43 US tons
Inventory rating26 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length47 ft (14.3 m)
Longest span44 ft (13.4 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (2010)
Projected traffic220 by 2027
Trucks2%
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

OwnerCounty Highway Agency
Maintained byCounty 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 CR 431 over Long Branch built?

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

What condition is CR 431 over Long Branch 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 2023.

How much traffic does CR 431 over Long Branch carry?

About 180 vehicles per day (2010 count), of which roughly 2% are trucks.

How long is CR 431 over Long Branch?

The structure is 47 ft (14.3 m) long with a longest span of 44 ft (13.4 m) and a deck 28 ft wide.

Who owns CR 431 over Long Branch?

It is owned by the County Highway Agency.