US Bridges

US 183 NB Ml over Little Walnut Creek

Fair

Travis County, Texas · 0.40 MI NW of US 290 · Structure no. 142270015109119

Built
2006
19 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
300 ft
3 main spans
Daily traffic
20,449
2019 count
Owner
Toll Authority
Local Toll Authority

About this bridge

US 183 NB Ml over Little Walnut Creek is a prestressed concrete stringer/multi-beam or girder carrying US 183 NB 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 20,449 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 72 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 183 NB Ml
CrossesLittle Walnut Creek
Location0.40 MI NW of US 290
RouteU.S. Route 183
StateTexas
Coordinates30.32917, -97.67868
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to 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 spans3
Design loadHS 20
Structure length300 ft (91.4 m)
Longest span100 ft (30.5 m)
Deck width72 ft (21.8 m)
Roadway width56 ft (17 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,449 (2019)
Projected traffic44,730 by 2035
Trucks3%
Lanes on structure3
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 NB Ml over Little Walnut Creek built?

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

What condition is US 183 NB Ml over Little Walnut Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

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

About 20,449 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is US 183 NB 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 72 ft wide.

Who owns US 183 NB Ml over Little Walnut Creek?

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