US Bridges

Exton Bypass(wb)rm over Pottstown Pike

Fair

Chester County, Pennsylvania · S RTE 100/30 21J12 · Structure no. 000000000009997

Built
1995
30 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
120 ft
1 main span
Daily traffic
21,142
2023 count
Owner
State
State Highway Agency

About this bridge

Exton Bypass(wb)rm over Pottstown Pike is a prestressed concrete stringer/multi-beam or girder carrying Exton Bypass(wb)rm over Pottstown Pike in Chester County, Pennsylvania. It was built in 1995, so it is 30 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 21,142 vehicles a day, roughly 7% of them trucks, projected to reach 25,410 by 2032. The structure is 120 ft (36.6 m) long and 64 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesExton Bypass(wb)rm
CrossesPottstown Pike
LocationS RTE 100/30 21J12
RouteU.S. Route 30
CountyChester County
StatePennsylvania
Coordinates40.02084, -75.62415
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating63.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length120 ft (36.6 m)
Longest span115 ft (35.1 m)
Deck width64 ft (19.6 m)
Roadway width61 ft (18.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,142 (2023)
Projected traffic25,410 by 2032
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 Exton Bypass(wb)rm over Pottstown Pike built?

It was built in 1995, making it 30 years old in 2025.

What condition is Exton Bypass(wb)rm over Pottstown Pike 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 August 2024.

How much traffic does Exton Bypass(wb)rm over Pottstown Pike carry?

About 21,142 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Exton Bypass(wb)rm over Pottstown Pike?

The structure is 120 ft (36.6 m) long with a longest span of 115 ft (35.1 m) and a deck 64 ft wide.

Who owns Exton Bypass(wb)rm over Pottstown Pike?

It is owned by the State Highway Agency.