US Bridges

CR 357 over East Alligator Branch

Good

Williamson County, Texas · 0.40 MI E of CR 352 · Structure no. 142460AA0297001

Built
1988
37 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
35
2020 count
Owner
County
County Highway Agency

About this bridge

CR 357 over East Alligator Branch is a concrete culvert carrying CR 357 over East Alligator Branch in Williamson County, Texas. It was built in 1988, so it is 37 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 35 vehicles a day, projected to reach 200 by 2030. The structure is 27 ft (8.2 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCR 357
CrossesEast Alligator Branch
Location0.40 MI E of CR 352
RouteCounty Highway 357
CountyWilliamson County
StateTexas
Coordinates30.75123, -97.37657
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 protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than 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 length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2020)
Projected traffic200 by 2030
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$43,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 357 over East Alligator Branch built?

It was built in 1988, making it 37 years old in 2025.

What condition is CR 357 over East Alligator 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 357 over East Alligator Branch carry?

About 35 vehicles per day (2020 count).

How long is CR 357 over East Alligator Branch?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m) and a deck 28 ft wide.

Who owns CR 357 over East Alligator Branch?

It is owned by the County Highway Agency.