US Bridges

Pottstown Bypass over Schuylkill River

Good

Montgomery County, Pennsylvania · 3/4 Mile W. PA-100 3138B2 · Structure no. 000000000054571

Built
2017
8 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
926 ft
6 main spans
Daily traffic
34,699
2024 count
Owner
State
State Highway Agency

About this bridge

Pottstown Bypass over Schuylkill River is a prestressed concrete continuous stringer/multi-beam or girder carrying Pottstown Bypass over Schuylkill River in Montgomery County, Pennsylvania. It was built in 2017, so it is 8 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 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 34,699 vehicles a day, roughly 8% of them trucks, projected to reach 44,503 by 2032. The structure is 926 ft (282.2 m) long and 95 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesPottstown Bypass
CrossesSchuylkill River
Location3/4 Mile W. PA-100 3138B2
RouteU.S. Route 422
Coordinates40.24306, -75.67611
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.2 US tons
Inventory rating41.1 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHL 93
Structure length926 ft (282.2 m)
Longest span154 ft (46.9 m)
Deck width95 ft (29 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,699 (2024)
Projected traffic44,503 by 2032
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Pottstown Bypass over Schuylkill River built?

It was built in 2017, making it 8 years old in 2025.

What condition is Pottstown Bypass over Schuylkill River 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 April 2023.

How much traffic does Pottstown Bypass over Schuylkill River carry?

About 34,699 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Pottstown Bypass over Schuylkill River?

The structure is 926 ft (282.2 m) long with a longest span of 154 ft (46.9 m) and a deck 95 ft wide.

Who owns Pottstown Bypass over Schuylkill River?

It is owned by the State Highway Agency.