US Bridges

SH45WB to LP1SB over SH 45

Good

Williamson County, Texas · 2.7 MI E of RM 620 · Structure no. 142460068306130

Built
2006
19 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
3,819 ft
3 main spans
Daily traffic
18,000
2013 count
Owner
State
State Highway Agency

About this bridge

SH45WB to LP1SB over SH 45 is a steel continuous stringer/multi-beam or girder carrying SH45WB to LP1SB over SH 45 in Williamson 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 18,000 vehicles a day, roughly 15% of them trucks, projected to reach 29,190 by 2033. The structure is 3,819 ft (1,164 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSH45WB to LP1SB
CrossesSH 45
Location2.7 MI E of RM 620
RouteState Highway 45
CountyWilliamson County
StateTexas
Coordinates30.47806, -97.69491
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
MaterialSteel Continuous
DeckCorrugated steel
Main spans3 (+28 approach)
Design loadHS 20
Structure length3,819 ft (1,164 m)
Longest span273 ft (83.2 m)
Deck width38 ft (11.6 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,000 (2013)
Projected traffic29,190 by 2033
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a toll 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 SH45WB to LP1SB over SH 45 built?

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

What condition is SH45WB to LP1SB over SH 45 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 SH45WB to LP1SB over SH 45 carry?

About 18,000 vehicles per day (2013 count), of which roughly 15% are trucks.

How long is SH45WB to LP1SB over SH 45?

The structure is 3,819 ft (1,164 m) long with a longest span of 273 ft (83.2 m) and a deck 38 ft wide.

Who owns SH45WB to LP1SB over SH 45?

It is owned by the State Highway Agency.