US Bridges

Exton Bypass(eb) over Pottstown Pike

Fair

Chester County, Pennsylvania · S RTE 100/30 21J12 · Structure no. 000000000009996

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
22,730
2023 count
Owner
State
State Highway Agency

About this bridge

Exton Bypass(eb) over Pottstown Pike is a prestressed concrete stringer/multi-beam or girder carrying Exton Bypass(eb) 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 5 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 22,730 vehicles a day, roughly 7% of them trucks, projected to reach 25,894 by 2032. The structure is 120 ft (36.6 m) long and 44 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesExton Bypass(eb)
CrossesPottstown Pike
LocationS RTE 100/30 21J12
RouteU.S. Route 30
CountyChester County
StatePennsylvania
Coordinates40.02065, -75.62405
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating51 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 width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,730 (2023)
Projected traffic25,894 by 2032
Trucks7%
Lanes on structure2
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(eb) over Pottstown Pike built?

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

What condition is Exton Bypass(eb) 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(eb) over Pottstown Pike carry?

About 22,730 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Exton Bypass(eb) 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 44 ft wide.

Who owns Exton Bypass(eb) over Pottstown Pike?

It is owned by the State Highway Agency.