US Bridges

Lp 1 SB Off Ramp over Lp 1 SB on Ramp

Good

Travis County, Texas · 0.35 MI N of Parmer LN · Structure no. 142270313601154

Built
2006
19 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,080 ft
9 main spans
Daily traffic
10,000
2016 count
Owner
State
State Highway Agency

About this bridge

Lp 1 SB Off Ramp over Lp 1 SB on Ramp is a prestressed concrete stringer/multi-beam or girder carrying Lp 1 SB Off Ramp over Lp 1 SB on Ramp 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 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 10,000 vehicles a day, roughly 4% of them trucks, projected to reach 13,000 by 2036. The structure is 1,080 ft (329.2 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesLp 1 SB Off Ramp
CrossesLp 1 SB on Ramp
Location0.35 MI N of Parmer LN
CountyTravis County
StateTexas
Coordinates30.42609, -97.70266
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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, precast panels
Main spans9
Design loadHS 20
Structure length1,080 ft (329.2 m)
Longest span120 ft (36.6 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2016)
Projected traffic13,000 by 2036
Trucks4%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Lp 1 SB Off Ramp over Lp 1 SB on Ramp built?

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

What condition is Lp 1 SB Off Ramp over Lp 1 SB on Ramp 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 November 2023.

How much traffic does Lp 1 SB Off Ramp over Lp 1 SB on Ramp carry?

About 10,000 vehicles per day (2016 count), of which roughly 4% are trucks.

How long is Lp 1 SB Off Ramp over Lp 1 SB on Ramp?

The structure is 1,080 ft (329.2 m) long with a longest span of 120 ft (36.6 m) and a deck 26 ft wide.

Who owns Lp 1 SB Off Ramp over Lp 1 SB on Ramp?

It is owned by the State Highway Agency.