US Bridges

183A SB Ml over South Brushy Creek

Good

Williamson County, Texas · 2.1 MI N of SH 45 · Structure no. 142460T00183006

Built
2007
18 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
470 ft
4 main spans
Daily traffic
14,320
2010 count
Owner
Toll Authority
Local Toll Authority

About this bridge

183A SB Ml over South Brushy Creek is a prestressed concrete stringer/multi-beam or girder carrying 183A SB Ml over South Brushy Creek in Williamson County, Texas. It was built in 2007, so it is 18 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 14,320 vehicles a day, roughly 5% of them trucks, projected to reach 25,776 by 2030. The structure is 470 ft (143.3 m) long and 72 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries183A SB Ml
CrossesSouth Brushy Creek
Location2.1 MI N of SH 45
StateTexas
Coordinates30.49631, -97.80321
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum 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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length470 ft (143.3 m)
Longest span125 ft (38.1 m)
Deck width72 ft (21.9 m)
Roadway width70 ft (21.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,320 (2010)
Projected traffic25,776 by 2030
Trucks5%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
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 183A SB Ml over South Brushy Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is 183A SB Ml over South Brushy Creek 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 September 2023.

How much traffic does 183A SB Ml over South Brushy Creek carry?

About 14,320 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is 183A SB Ml over South Brushy Creek?

The structure is 470 ft (143.3 m) long with a longest span of 125 ft (38.1 m) and a deck 72 ft wide.

Who owns 183A SB Ml over South Brushy Creek?

It is owned by the Local Toll Authority.