US Bridges

Keim Street over Pottstown By-Pass

Fair

Chester County, Pennsylvania · South of Pottstown 2G13 · Structure no. 000000000010238

Built
1965
60 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
91 ft
1 main span
Daily traffic
483
2024 count
Owner
State
State Highway Agency

About this bridge

Keim Street over Pottstown By-Pass is a prestressed concrete stringer/multi-beam or girder carrying Keim Street over Pottstown By-Pass in Chester County, Pennsylvania. It was built in 1965, so it is 60 years old, older 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 483 vehicles a day, roughly 7% of them trucks, projected to reach 10,318 by 2032. The structure is 91 ft (27.7 m) long and 46 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesKeim Street
CrossesPottstown By-Pass
LocationSouth of Pottstown 2G13
RouteState Highway 0
Coordinates40.23283, -75.63531
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82 US tons
Inventory rating30 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length91 ft (27.7 m)
Longest span86 ft (26.2 m)
Deck width46 ft (13.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic483 (2024)
Projected traffic10,318 by 2032
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 Keim Street over Pottstown By-Pass built?

It was built in 1965, making it 60 years old in 2025.

What condition is Keim Street over Pottstown By-Pass 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 July 2023.

How much traffic does Keim Street over Pottstown By-Pass carry?

About 483 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Keim Street over Pottstown By-Pass?

The structure is 91 ft (27.7 m) long with a longest span of 86 ft (26.2 m) and a deck 46 ft wide.

Who owns Keim Street over Pottstown By-Pass?

It is owned by the State Highway Agency.