US Bridges

CR 401 over Mustang Creek Trib

Good

Williamson County, Texas · 0.48 MI S of US 79 · Structure no. 142460AA0443501

Built
2023
2 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
240 ft
2 main spans
Daily traffic
120
2021 count
Owner
County
County Highway Agency

About this bridge

CR 401 over Mustang Creek Trib is a prestressed concrete stringer/multi-beam or girder carrying CR 401 over Mustang Creek Trib in Williamson County, Texas. It was built in 2023, so it is 2 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 120 vehicles a day, projected to reach 1 by 1900. The structure is 240 ft (73.2 m) long and 70 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCR 401
CrossesMustang Creek Trib
Location0.48 MI S of US 79
RouteCounty Highway 401
CountyWilliamson County
StateTexas
Coordinates30.55669, -97.45234
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length240 ft (73.2 m)
Longest span120 ft (36.6 m)
Deck width70 ft (21.3 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2021)
Projected traffic1 by 1900
Trucks—
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 401 over Mustang Creek Trib built?

It was built in 2023, making it 2 years old in 2025.

What condition is CR 401 over Mustang Creek Trib 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 December 2023.

How much traffic does CR 401 over Mustang Creek Trib carry?

About 120 vehicles per day (2021 count).

How long is CR 401 over Mustang Creek Trib?

The structure is 240 ft (73.2 m) long with a longest span of 120 ft (36.6 m) and a deck 70 ft wide.

Who owns CR 401 over Mustang Creek Trib?

It is owned by the County Highway Agency.