A bridge walked into a bar. The bartender said, 'Why the long span?'
A bridge walked into a bar. The bartender said, 'Why the long span?'
What do you call a bridge that tells jokes? A pun-toon bridge.
over Mtown & Htown RR
Lower Swatara Twp.
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
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This bridge has a Good overall condition rating of 7 out of 9. It is in good structural condition and is not classified as structurally deficient.
The bridge carries 24,423 vehicles per day and is 10 years old.
Its sufficiency rating of 73.0 is above the national average of 63.6.
The NBI records a navigation clearance of 23 feet — the minimum vertical space below the bridge deck. The total height of the bridge structure (including towers, railings, and superstructure) may be higher.
For travelers with bridge anxiety
This bridge is likely to be a comfortable crossing for most travelers.
This bridge is 47 feet long — a quick crossing, under 5 seconds at highway speed.
A standard overpass design with solid barriers on each side.
About 23 feet above ground — moderate height, similar to a 3-5 story building.
About 24,423 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 126 feet wide with multiple lanes — easy to stay in a center lane.
This bridge crosses over land, not water — no water views 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
2016
10 years old
Structure Type
Concrete Box Beam (Multiple)
Total Length
47 ft
14.3 m
Deck Width
126 ft
38.5 m
Spans
1
sections between supports
Max Span
45 ft
longest unsupported section (13.7 m)
Traffic Lanes
4 lanes
Two-way traffic
Clearance Below
23 ft
navigation clearance under deck
Clearance height compared to familiar objects
Height shown is the navigation clearance below the bridge deck. The total height of the bridge structure (including towers and superstructure) may be higher.
Daily Traffic
24,423vehicles/day
40.20989°N, 76.71903°W
Concrete Box Beam (Multiple)
A concrete box beam bridge uses hollow rectangular concrete sections. The box shape provides excellent torsional resistance and allows for longer spans.
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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.