US Bridges

IH 35 SB FR over West Fork Smith Branch

Fair

Williamson County, Texas · 0.7 MI S of FM 2243 · Structure no. 142460001509311

Built
1968
57 years old, rebuilt 1989
Condition
Fair
inspected January 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
1,647
2021 count
Owner
State
State Highway Agency

About this bridge

IH 35 SB FR over West Fork Smith Branch is a concrete culvert carrying IH 35 SB FR over West Fork Smith Branch in Williamson County, Texas. It was built in 1968 and reconstructed in 1989, so it is 57 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 1,647 vehicles a day, roughly 4% of them trucks, projected to reach 3,261 by 2041. The structure is 32 ft (9.8 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIH 35 SB FR
CrossesWest Fork Smith Branch
Location0.7 MI S of FM 2243
RouteInterstate 35
CountyWilliamson County
StateTexas
Coordinates30.61061, -97.68734
Functional classUrban 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 inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to 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 span11 ft (3.4 m)
Deck width43 ft (13 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,647 (2021)
Projected traffic3,261 by 2041
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 IH 35 SB FR over West Fork Smith Branch built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1989.

What condition is IH 35 SB FR over West Fork Smith 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 January 2023.

How much traffic does IH 35 SB FR over West Fork Smith Branch carry?

About 1,647 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is IH 35 SB FR over West Fork Smith Branch?

The structure is 32 ft (9.8 m) long with a longest span of 11 ft (3.4 m) and a deck 43 ft wide.

Who owns IH 35 SB FR over West Fork Smith Branch?

It is owned by the State Highway Agency.