US Bridges

US 183 NB Conn over Lp 1 Nbfr & Off-Rp

Fair

Travis County, Texas · US 183 / Lp 1 Interchange · Structure no. 142270015106087

Built
1990
35 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,205 ft
12 main spans
Daily traffic
11,450
2013 count
Owner
State
State Highway Agency

About this bridge

US 183 NB Conn over Lp 1 Nbfr & Off-Rp is a prestressed concrete stringer/multi-beam or girder carrying US 183 NB Conn over Lp 1 Nbfr & Off-Rp in Travis County, Texas. It was built in 1990, so it is 35 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 11,450 vehicles a day, roughly 2% of them trucks, projected to reach 16,030 by 2033. The structure is 1,205 ft (367.3 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 183 NB Conn
CrossesLp 1 Nbfr & Off-Rp
LocationUS 183 / Lp 1 Interchange
RouteU.S. Route 183
CountyTravis County
StateTexas
Coordinates30.37856, -97.73515
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.
Last inspectionAugust 2023
Inspection intervalevery 48 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
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans12
Design loadHS 20
Structure length1,205 ft (367.3 m)
Longest span112 ft (34.1 m)
Deck width29 ft (8.7 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,450 (2013)
Projected traffic16,030 by 2033
Trucks2%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
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 US 183 NB Conn over Lp 1 Nbfr & Off-Rp built?

It was built in 1990, making it 35 years old in 2025.

What condition is US 183 NB Conn over Lp 1 Nbfr & Off-Rp 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 US 183 NB Conn over Lp 1 Nbfr & Off-Rp carry?

About 11,450 vehicles per day (2013 count), of which roughly 2% are trucks.

How long is US 183 NB Conn over Lp 1 Nbfr & Off-Rp?

The structure is 1,205 ft (367.3 m) long with a longest span of 112 ft (34.1 m) and a deck 29 ft wide.

Who owns US 183 NB Conn over Lp 1 Nbfr & Off-Rp?

It is owned by the State Highway Agency.