US Bridges

Lp 1 NB over US 290/SH 71

Good

Travis County, Texas · Lp 1 & US290/SH71 Interch · Structure no. 142270011309146

Built
1999
26 years old
Condition
Good
inspected August 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,226 ft
10 main spans
Daily traffic
48,210
2015 count
Owner
State
State Highway Agency

About this bridge

Lp 1 NB over US 290/SH 71 is a prestressed concrete stringer/multi-beam or girder carrying Lp 1 NB over US 290/SH 71 in Travis County, Texas. It was built in 1999, so it is 26 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 48,210 vehicles a day, roughly 2% of them trucks, projected to reach 82,920 by 2035. The structure is 1,226 ft (373.7 m) long and 46 ft wide.

Location

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CarriesLp 1 NB
CrossesUS 290/SH 71
LocationLp 1 & US290/SH71 Interch
RouteState Highway 1
CountyTravis County
StateTexas
Coordinates30.23462, -97.8249
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 spans10 (+2 approach)
Design loadHS 25 or greater
Structure length1,226 ft (373.7 m)
Longest span120 ft (36.6 m)
Deck width46 ft (14 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deck16 ft (4.9 m)

Traffic and service

Average daily traffic48,210 (2015)
Projected traffic82,920 by 2035
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an 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 Lp 1 NB over US 290/SH 71 built?

It was built in 1999, making it 26 years old in 2025.

What condition is Lp 1 NB over US 290/SH 71 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 August 2022.

How much traffic does Lp 1 NB over US 290/SH 71 carry?

About 48,210 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is Lp 1 NB over US 290/SH 71?

The structure is 1,226 ft (373.7 m) long with a longest span of 120 ft (36.6 m) and a deck 46 ft wide.

Who owns Lp 1 NB over US 290/SH 71?

It is owned by the State Highway Agency.