US Bridges

183A SB FR over Block House Creek

Good

Williamson County, Texas · 2.2 MI N of FM 1431 · Structure no. 142460T00183019

Built
2007
18 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
680 ft
6 main spans
Daily traffic
17,350
2010 count
Owner
Toll Authority
Local Toll Authority

About this bridge

183A SB FR over Block House Creek is a prestressed concrete stringer/multi-beam or girder carrying 183A SB FR over Block House 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 17,350 vehicles a day, roughly 5% of them trucks, projected to reach 24,000 by 2030. The structure is 680 ft (207.3 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries183A SB FR
CrossesBlock House Creek
Location2.2 MI N of FM 1431
CountyWilliamson County
StateTexas
Coordinates30.55728, -97.82175
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.
Superstructure8 Very GoodNo problems noted.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 spans6
Design loadHS 20
Structure length680 ft (207.3 m)
Longest span115 ft (35.1 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,350 (2010)
Projected traffic24,000 by 2030
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a toll road
National Highway SystemNo

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 FR over Block House Creek built?

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

What condition is 183A SB FR over Block House 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 FR over Block House Creek carry?

About 17,350 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is 183A SB FR over Block House Creek?

The structure is 680 ft (207.3 m) long with a longest span of 115 ft (35.1 m) and a deck 38 ft wide.

Who owns 183A SB FR over Block House Creek?

It is owned by the Local Toll Authority.