US Bridges

Ss 158 over Pecan Branch

Fair

Williamson County, Texas · 1.1 MI N of FM 972 · Structure no. 142460001517058

Built
1936
89 years old, rebuilt 1994
Condition
Fair
inspected January 2023
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
10,462
2021 count
Owner
State
State Highway Agency

About this bridge

Ss 158 over Pecan Branch is a concrete culvert carrying Ss 158 over Pecan Branch in Williamson County, Texas. It was built in 1936 and reconstructed in 1994, 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 10,462 vehicles a day, roughly 4% of them trucks, projected to reach 14,647 by 2041. The structure is 27 ft (8.2 m) long and 68 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSs 158
CrossesPecan Branch
Location1.1 MI N of FM 972
RouteState Highway 35
CountyWilliamson County
StateTexas
Coordinates30.6691, -97.6652
Functional classUrban Minor Arterial

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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width68 ft (20.6 m)
Roadway width65 ft (19.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,462 (2021)
Projected traffic14,647 by 2041
Trucks4%
Lanes on structure5
Traffic directionTwo-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 Ss 158 over Pecan Branch built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1994.

What condition is Ss 158 over Pecan 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 Ss 158 over Pecan Branch carry?

About 10,462 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Ss 158 over Pecan Branch?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m) and a deck 68 ft wide.

Who owns Ss 158 over Pecan Branch?

It is owned by the State Highway Agency.