Penllyn Pike over Wissahickon Creek
PoorMontgomery County, Pennsylvania · 1.4 MI N SR73 Adc 3256-K3 · Structure no. 000000000027966
- Built
- 1964
- 61 years old
- Condition
- Poor
- inspected July 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 115 ft
- 2 main spans
- Daily traffic
- 11,591
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Penllyn Pike over Wissahickon Creek is a prestressed concrete box beam or girders - multiple carrying Penllyn Pike over Wissahickon Creek in Montgomery County, Pennsylvania. It was built in 1964, so it is 61 years old, older than the Pennsylvania average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 11,591 vehicles a day, roughly 22% of them trucks, projected to reach 11,086 by 2018. The structure is 115 ft (35.1 m) long and 53 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Penllyn Pike over Wissahickon Creek built?
It was built in 1964, making it 61 years old in 2025.
What condition is Penllyn Pike over Wissahickon Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.
How much traffic does Penllyn Pike over Wissahickon Creek carry?
About 11,591 vehicles per day (2019 count), of which roughly 22% are trucks.
How long is Penllyn Pike over Wissahickon Creek?
The structure is 115 ft (35.1 m) long with a longest span of 56 ft (17.1 m) and a deck 53 ft wide.
Who owns Penllyn Pike over Wissahickon Creek?
It is owned by the County Highway Agency.