Fun fact: Covered bridges were roofed to protect the wood, not the travelers.
Fun fact: Covered bridges were roofed to protect the wood, not the travelers.
Fun fact: The average American crosses 4 bridges a day without even noticing.
over WISSAHICKON CREEK
CHESTNUT HILL 3479 H05
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
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This bridge has a Fair overall condition rating of 6 out of 9. While it is not classified as structurally deficient, it shows some deterioration that is being monitored.
The bridge carries 18,036 vehicles per day and is 119 years old (reconstructed in 2019).
Its sufficiency rating of 60.2 places it below the national average of 63.6.
For travelers with bridge anxiety
This bridge may cause some awareness for travelers with bridge anxiety, but has manageable characteristics.
This bridge is 565 feet long — a short crossing, about 10-15 seconds.
An arch bridge design with some openness to the surroundings.
No height data available — likely a standard overpass height.
About 18,036 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 60 feet wide with 3-4 lanes — standard width.
This bridge crosses over water. Focus on the road ahead — the water is far below.
This comfort score is designed to help individuals with bridge anxiety plan their travel. All bridges in the National Bridge Inventory are regularly inspected and deemed safe for travel. This is not medical advice — if you experience severe anxiety, please consult a healthcare professional.
Year Built
1907
119 years old (rebuilt 2019)
Structure Type
Concrete Arch (Deck)
Total Length
565 ft
172.2 m
Deck Width
60 ft
18.3 m
Spans
1
sections between supports
Max Span
232 ft
longest unsupported section (70.7 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
18,036vehicles/day
40.03245°N, 75.19943°W
Concrete Arch (Deck)
A concrete arch bridge uses a curved concrete structure to transfer loads through compression. Concrete arches are durable and can be very aesthetically pleasing.
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Data from the National Bridge Inventory (NBI), maintained by the Federal Highway Administration (FHWA).
Data year: 2025. Conditions may have changed since the last inspection.
This information is provided for educational and informational purposes only. It should not be used as the sole basis for any decisions related to bridge safety or transportation planning. Always consult official sources and local authorities for the most current data.