US Bridges

Lp 1 NB over Windsor RD

Good

Travis County, Texas · 6.25 MI S of US 183 · Structure no. 142270313601009

Built
1971
54 years old, rebuilt 2016
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
139 ft
2 main spans
Daily traffic
74,702
2019 count
Owner
State
State Highway Agency

About this bridge

Lp 1 NB over Windsor RD is a prestressed concrete stringer/multi-beam or girder carrying Lp 1 NB over Windsor RD in Travis County, Texas. It was built in 1971 and reconstructed in 2016, so it is 54 years old, older 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 74,702 vehicles a day, roughly 2% of them trucks, projected to reach 94,970 by 2033. The structure is 139 ft (42.4 m) long and 73 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLp 1 NB
CrossesWindsor RD
Location6.25 MI S of US 183
RouteState Highway 1
CountyTravis County
StateTexas
Coordinates30.29217, -97.75979
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 inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating39 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length139 ft (42.4 m)
Longest span69 ft (21 m)
Deck width73 ft (22.2 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic74,702 (2019)
Projected traffic94,970 by 2033
Trucks2%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lp 1 NB over Windsor RD built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2016.

What condition is Lp 1 NB over Windsor RD 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 September 2023.

How much traffic does Lp 1 NB over Windsor RD carry?

About 74,702 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is Lp 1 NB over Windsor RD?

The structure is 139 ft (42.4 m) long with a longest span of 69 ft (21 m) and a deck 73 ft wide.

Who owns Lp 1 NB over Windsor RD?

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