US Bridges

Willow Brook Road over Trib to Catasauqua CR

Good

Lehigh County, Pennsylvania · Willow Brook Rd. Bridge · Structure no. 000000000068653

Built
2021
4 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
25 ft
1 main span
Daily traffic
3,747
2024 count
Owner
State
State Highway Agency

About this bridge

Willow Brook Road over Trib to Catasauqua CR is a concrete culvert carrying Willow Brook Road over Trib to Catasauqua CR in Lehigh County, Pennsylvania. It was built in 2021, so it is 4 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,747 vehicles a day, roughly 10% of them trucks, projected to reach 10,000 by 2032. The structure is 25 ft (7.6 m) long and 85 ft wide. If it were closed, the detour would be 96.9 mi (156 km).

Location

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CarriesWillow Brook Road
CrossesTrib to Catasauqua CR
LocationWillow Brook Rd. Bridge
RouteState Highway 0
CountyLehigh County
StatePennsylvania
Coordinates40.65997, -75.44736
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating41.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width85 ft (25.9 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,747 (2024)
Projected traffic10,000 by 2032
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed96.9 mi (156 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Willow Brook Road over Trib to Catasauqua CR built?

It was built in 2021, making it 4 years old in 2025.

What condition is Willow Brook Road over Trib to Catasauqua CR 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 December 2023.

How much traffic does Willow Brook Road over Trib to Catasauqua CR carry?

About 3,747 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Willow Brook Road over Trib to Catasauqua CR?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 85 ft wide.

Who owns Willow Brook Road over Trib to Catasauqua CR?

It is owned by the State Highway Agency.