US Bridges

US 183 Nbfr over Little Walnut CR

Good

Travis County, Texas · 0.75 MI N of FM 969 · Structure no. 142270015109504

Built
2018
7 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
208 ft
1 main span
Daily traffic
5,000
2018 count
Owner
State
State Highway Agency

About this bridge

US 183 Nbfr over Little Walnut CR is a prestressed concrete stringer/multi-beam or girder carrying US 183 Nbfr over Little Walnut CR in Travis County, Texas. It was built in 2018, so it is 7 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 5,000 vehicles a day, roughly 4% of them trucks, projected to reach 6,000 by 2038. The structure is 208 ft (63.4 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 183 Nbfr
CrossesLittle Walnut CR
Location0.75 MI N of FM 969
RouteU.S. Route 183
StateTexas
Coordinates30.2962, -97.66196
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.
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 geometry2: Basically intolerable, requiring high priority of replacement
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 spans1 (+2 approach)
Design loadHL 93
Structure length208 ft (63.4 m)
Longest span130 ft (39.6 m)
Deck width57 ft (17.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2018)
Projected traffic6,000 by 2038
Trucks4%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
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 US 183 Nbfr over Little Walnut CR built?

It was built in 2018, making it 7 years old in 2025.

What condition is US 183 Nbfr over Little Walnut CR 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 US 183 Nbfr over Little Walnut CR carry?

About 5,000 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is US 183 Nbfr over Little Walnut CR?

The structure is 208 ft (63.4 m) long with a longest span of 130 ft (39.6 m) and a deck 57 ft wide.

Who owns US 183 Nbfr over Little Walnut CR?

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