US Bridges

183 SB to Lp 1 NB over US 183

Fair

Travis County, Texas · US 183/LP 1 Interchange · Structure no. 142270015106090

Built
1991
34 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,186 ft
3 main spans
Daily traffic
57,130
2009 count
Owner
State
State Highway Agency

About this bridge

183 SB to Lp 1 NB over US 183 is a steel continuous stringer/multi-beam or girder carrying 183 SB to Lp 1 NB over US 183 in Travis County, Texas. It was built in 1991, so it is 34 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 57,130 vehicles a day, roughly 3% of them trucks, projected to reach 79,980 by 2029. The structure is 1,186 ft (361.5 m) long and 28 ft wide.

Location

Open in Google Maps
Carries183 SB to Lp 1 NB
CrossesUS 183
LocationUS 183/LP 1 Interchange
RouteU.S. Route 183
CountyTravis County
StateTexas
Coordinates30.37966, -97.73892
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+7 approach)
Design loadHS 20
Structure length1,186 ft (361.5 m)
Longest span191 ft (58.2 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deck18 ft (5.4 m)

Traffic and service

Average daily traffic57,130 (2009)
Projected traffic79,980 by 2029
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesThird level (interchange)
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 183 SB to Lp 1 NB over US 183 built?

It was built in 1991, making it 34 years old in 2025.

What condition is 183 SB to Lp 1 NB over US 183 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 August 2023.

How much traffic does 183 SB to Lp 1 NB over US 183 carry?

About 57,130 vehicles per day (2009 count), of which roughly 3% are trucks.

How long is 183 SB to Lp 1 NB over US 183?

The structure is 1,186 ft (361.5 m) long with a longest span of 191 ft (58.2 m) and a deck 28 ft wide.

Who owns 183 SB to Lp 1 NB over US 183?

It is owned by the State Highway Agency.