US Bridges

PA501 (lr 423) over I-78

Good

Berks County, Pennsylvania · I-78 PA501 Interchange · Structure no. 000000000048163

Built
2013
12 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
116 ft
1 main span
Daily traffic
4,006
2024 count
Owner
State
State Highway Agency

About this bridge

PA501 (lr 423) over I-78 is a prestressed concrete stringer/multi-beam or girder carrying PA501 (lr 423) over I-78 in Berks County, Pennsylvania. It was built in 2013, so it is 12 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,006 vehicles a day, roughly 12% of them trucks, projected to reach 4,220 by 2034. The structure is 116 ft (35.4 m) long and 57 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesPA501 (lr 423)
CrossesI-78
LocationI-78 PA501 Interchange
RouteState Highway 501
Coordinates40.47638, -76.29478
Functional classRural Major Collector

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.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating68.6 US tons
Inventory rating37.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length116 ft (35.4 m)
Longest span115 ft (35.1 m)
Deck width57 ft (17.5 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,006 (2024)
Projected traffic4,220 by 2034
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.8 mi (11 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was PA501 (lr 423) over I-78 built?

It was built in 2013, making it 12 years old in 2025.

What condition is PA501 (lr 423) over I-78 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 October 2023.

How much traffic does PA501 (lr 423) over I-78 carry?

About 4,006 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is PA501 (lr 423) over I-78?

The structure is 116 ft (35.4 m) long with a longest span of 115 ft (35.1 m) and a deck 57 ft wide.

Who owns PA501 (lr 423) over I-78?

It is owned by the State Highway Agency.