US Bridges

Lp 1 Nbfr over Williamson Creek

Good

Travis County, Texas · 1.0 MI SW of US 290 · Structure no. 142270313601102

Built
1990
35 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
196 ft
2 main spans
Daily traffic
5,223
2022 count
Owner
State
State Highway Agency

About this bridge

Lp 1 Nbfr over Williamson Creek is a prestressed concrete stringer/multi-beam or girder carrying Lp 1 Nbfr over Williamson Creek 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 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 5,223 vehicles a day, roughly 4% of them trucks, projected to reach 7,312 by 2042. The structure is 196 ft (59.7 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesLp 1 Nbfr
CrossesWilliamson Creek
Location1.0 MI SW of US 290
RouteState Highway 1
CountyTravis County
StateTexas
Coordinates30.22366, -97.8331
Functional classUrban Collector

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable 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 spans2 (+1 approach)
Design loadHS 20
Structure length196 ft (59.7 m)
Longest span72 ft (21.9 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,223 (2022)
Projected traffic7,312 by 2042
Trucks4%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$19,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Lp 1 Nbfr over Williamson Creek built?

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

What condition is Lp 1 Nbfr over Williamson Creek 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 2024.

How much traffic does Lp 1 Nbfr over Williamson Creek carry?

About 5,223 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Lp 1 Nbfr over Williamson Creek?

The structure is 196 ft (59.7 m) long with a longest span of 72 ft (21.9 m) and a deck 42 ft wide.

Who owns Lp 1 Nbfr over Williamson Creek?

It is owned by the State Highway Agency.