Over 5 billion bridge crossings happen every single day in America.
Over 5 billion bridge crossings happen every single day in America.
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over FORE RIVER
PORTLAND - S PORTLAND TL
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 14,893 vehicles per day and is 28 years old.
Its sufficiency rating of 71.3 is above the national average of 63.6.
The NBI records a navigation clearance of 65 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 has some features that may be challenging for travelers with bridge anxiety. See the tips below for a more comfortable crossing.
This bridge is 4748 feet long — an extended crossing, several minutes.
A movable bridge — it may occasionally stop for boat traffic.
About 65 feet above ground — an elevated crossing, similar to a 5-10 story building.
About 14,893 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 86 feet wide with multiple lanes — easy to stay in a center lane.
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
1998
28 years old
Structure Type
Steel Movable (Bascule)
Total Length
4,748 ft
1447.2 m
Deck Width
86 ft
26.2 m
Spans
1
sections between supports
Max Span
287 ft
longest unsupported section (87.5 m)
Traffic Lanes
4 lanes
One-way traffic
Clearance Below
65 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
14,893vehicles/day
43.64504°N, 70.25789°W
Steel Movable (Bascule)
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.