US Bridges

Pottstown Ex (wb) over Trappe Road

Fair

Montgomery County, Pennsylvania · Upper Providence 3253-A03 · Structure no. 000000000027436

Built
1976
49 years old, rebuilt 2010
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
165 ft
3 main spans
Daily traffic
33,727
2024 count
Owner
State
State Highway Agency

About this bridge

Pottstown Ex (wb) over Trappe Road is a prestressed concrete stringer/multi-beam or girder carrying Pottstown Ex (wb) over Trappe Road in Montgomery County, Pennsylvania. It was built in 1976 and reconstructed in 2010, so it is 49 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 33,727 vehicles a day, roughly 6% of them trucks, projected to reach 39,838 by 2032. The structure is 165 ft (50.3 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesPottstown Ex (wb)
CrossesTrappe Road
LocationUpper Providence 3253-A03
RouteU.S. Route 422
Coordinates40.16991, -75.49715
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating37 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length165 ft (50.3 m)
Longest span89 ft (27.1 m)
Deck width43 ft (13.2 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,727 (2024)
Projected traffic39,838 by 2032
Trucks6%
Lanes on structure2
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 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 Pottstown Ex (wb) over Trappe Road built?

It was built in 1976, making it 49 years old in 2025. It was reconstructed in 2010.

What condition is Pottstown Ex (wb) over Trappe Road 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 March 2023.

How much traffic does Pottstown Ex (wb) over Trappe Road carry?

About 33,727 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Pottstown Ex (wb) over Trappe Road?

The structure is 165 ft (50.3 m) long with a longest span of 89 ft (27.1 m) and a deck 43 ft wide.

Who owns Pottstown Ex (wb) over Trappe Road?

It is owned by the State Highway Agency.