US Bridges

US 183 SB Ml over Little Walnut Creek

Good

Travis County, Texas · 0.40 MI NW of US 290 · Structure no. 142270015109120

Built
2006
19 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
300 ft
3 main spans
Daily traffic
32,680
2019 count
Owner
Toll Authority
Local Toll Authority

About this bridge

US 183 SB Ml over Little Walnut Creek is a prestressed concrete stringer/multi-beam or girder carrying US 183 SB Ml over Little Walnut Creek in Travis County, Texas. It was built in 2006, so it is 19 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 32,680 vehicles a day, roughly 3% of them trucks, projected to reach 44,730 by 2035. The structure is 300 ft (91.4 m) long and 94 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 183 SB Ml
CrossesLittle Walnut Creek
Location0.40 MI NW of US 290
RouteU.S. Route 183
StateTexas
Coordinates30.32903, -97.67903
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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be 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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length300 ft (91.4 m)
Longest span100 ft (30.5 m)
Deck width94 ft (28.7 m)
Roadway width63 ft (19.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,680 (2019)
Projected traffic44,730 by 2035
Trucks3%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerLocal Toll Authority
Maintained byState 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 US 183 SB Ml over Little Walnut Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is US 183 SB Ml over Little Walnut 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 July 2023.

How much traffic does US 183 SB Ml over Little Walnut Creek carry?

About 32,680 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is US 183 SB Ml over Little Walnut Creek?

The structure is 300 ft (91.4 m) long with a longest span of 100 ft (30.5 m) and a deck 94 ft wide.

Who owns US 183 SB Ml over Little Walnut Creek?

It is owned by the Local Toll Authority and maintained by the State Highway Agency.