US Bridges

CR 234 over Smalley Branch

Good

Williamson County, Texas · 4.82 MI S of FM 487 · Structure no. 142460AA0170002

Built
1989
36 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
38 ft
3 main spans
Daily traffic
2,357
2020 count
Owner
County
County Highway Agency

About this bridge

CR 234 over Smalley Branch is a concrete culvert carrying CR 234 over Smalley Branch in Williamson County, Texas. It was built in 1989, so it is 36 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 2,357 vehicles a day, projected to reach 1,920 by 2030. The structure is 38 ft (11.6 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 234
CrossesSmalley Branch
Location4.82 MI S of FM 487
RouteCounty Highway 234
CountyWilliamson County
StateTexas
Coordinates30.74297, -97.66494
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span8 ft (2.4 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,357 (2020)
Projected traffic1,920 by 2030
Trucks0%
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 234 over Smalley Branch built?

It was built in 1989, making it 36 years old in 2025.

What condition is CR 234 over Smalley Branch 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 October 2023.

How much traffic does CR 234 over Smalley Branch carry?

About 2,357 vehicles per day (2020 count).

How long is CR 234 over Smalley Branch?

The structure is 38 ft (11.6 m) long with a longest span of 8 ft (2.4 m) and a deck 28 ft wide.

Who owns CR 234 over Smalley Branch?

It is owned by the County Highway Agency.