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Bridges: the original social network. Connecting communities since 850 BC.
over Mackerel Cove
Swans Island Ferry Slip
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 5 out of 9. While it is not classified as structurally deficient, it shows some deterioration that is being monitored.
The bridge carries 0 vehicles per day and is 29 years old (reconstructed in 2014).
Its sufficiency rating of 58.9 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 84 feet long — a quick crossing, under 5 seconds at highway speed.
A movable bridge — it may occasionally stop for boat traffic.
No height data available — likely a standard overpass height.
Only about 0 vehicles cross daily — very light traffic with low congestion risk.
The deck is 12 feet wide — a very narrow, single-lane crossing.
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
1997
29 years old (rebuilt 2014)
Structure Type
Steel Movable (Lift)
Total Length
84 ft
25.6 m
Deck Width
12 ft
3.8 m
Spans
1
sections between supports
Max Span
55 ft
longest unsupported section (16.8 m)
Traffic Lanes
2 lanes
Daily Traffic
0vehicles/day
44.18125°N, 68.42365°W
Steel Movable (Lift)
A movable bridge can change position to allow passage of boats or other traffic. Steel movable bridges include lift, bascule (drawbridge), and swing types.
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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.