US Bridges

Lp 1 NB to 183 NB over US 183 / Lp 1 I/C

Fair

Travis County, Texas · US 183 / Lp 1 I/C · Structure no. 142270313601089

Built
1991
34 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
3,030 ft
3 main spans
Daily traffic
6,850
2009 count
Owner
State
State Highway Agency

About this bridge

Lp 1 NB to 183 NB over US 183 / Lp 1 I/C is a steel continuous stringer/multi-beam or girder carrying Lp 1 NB to 183 NB over US 183 / Lp 1 I/C 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 6,850 vehicles a day, roughly 3% of them trucks, projected to reach 11,780 by 2029. The structure is 3,030 ft (923.5 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLp 1 NB to 183 NB
CrossesUS 183 / Lp 1 I/C
LocationUS 183 / Lp 1 I/C
RouteState Highway 1
CountyTravis County
StateTexas
Coordinates30.38031, -97.73868
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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 (+21 approach)
Design loadHS 20
Structure length3,030 ft (923.5 m)
Longest span212 ft (64.6 m)
Deck width40 ft (12.3 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,850 (2009)
Projected traffic11,780 by 2029
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesFourth level (interchange)
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lp 1 NB to 183 NB over US 183 / Lp 1 I/C built?

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

What condition is Lp 1 NB to 183 NB over US 183 / Lp 1 I/C 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 September 2023.

How much traffic does Lp 1 NB to 183 NB over US 183 / Lp 1 I/C carry?

About 6,850 vehicles per day (2009 count), of which roughly 3% are trucks.

How long is Lp 1 NB to 183 NB over US 183 / Lp 1 I/C?

The structure is 3,030 ft (923.5 m) long with a longest span of 212 ft (64.6 m) and a deck 40 ft wide.

Who owns Lp 1 NB to 183 NB over US 183 / Lp 1 I/C?

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