US Bridges

Allentown Road over Ne.Br.Perkiomen Creek

Fair

Montgomery County, Pennsylvania · .5 Mi.E. Tpk 08E08/2918K8 · Structure no. 000000000027527

Built
1988
37 years old
Condition
Fair
inspected January 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
174 ft
2 main spans
Daily traffic
7,313
2024 count
Owner
State
State Highway Agency

About this bridge

Allentown Road over Ne.Br.Perkiomen Creek is a prestressed concrete continuous box beam or girders - multiple carrying Allentown Road over Ne.Br.Perkiomen Creek in Montgomery County, Pennsylvania. It was built in 1988, so it is 37 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 7,313 vehicles a day, roughly 9% of them trucks, projected to reach 7,445 by 2032. The structure is 174 ft (53 m) long and 41 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesAllentown Road
CrossesNe.Br.Perkiomen Creek
Location.5 Mi.E. Tpk 08E08/2918K8
RouteState Highway 0
CountyMontgomery County
StatePennsylvania
Coordinates40.33022, -75.37703
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106 US tons
Inventory rating41 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length174 ft (53 m)
Longest span85 ft (25.9 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,313 (2024)
Projected traffic7,445 by 2032
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Allentown Road over Ne.Br.Perkiomen Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Allentown Road over Ne.Br.Perkiomen Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2023.

How much traffic does Allentown Road over Ne.Br.Perkiomen Creek carry?

About 7,313 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Allentown Road over Ne.Br.Perkiomen Creek?

The structure is 174 ft (53 m) long with a longest span of 85 ft (25.9 m) and a deck 41 ft wide.

Who owns Allentown Road over Ne.Br.Perkiomen Creek?

It is owned by the State Highway Agency.