Fetching data from the National Bridge Inventory...
Fetching data from the National Bridge Inventory...
Crunching the numbers on America's infrastructure...
over BAYOU LAFOURCHE
LA 657 BETWEEN LA 1 AND L
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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 443 vehicles per day and is 13 years old.
Its sufficiency rating of 63.1 places it below the national average of 63.6.
The NBI records a navigation clearance of 73 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 may cause some awareness for travelers with bridge anxiety, but has manageable characteristics.
This bridge is 290 feet long — a short crossing, about 10-15 seconds.
A movable bridge — it may occasionally stop for boat traffic.
About 73 feet above ground — an elevated crossing, similar to a 5-10 story building.
Only about 443 vehicles cross daily — very light traffic with low congestion risk.
The deck is 80 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
2013
13 years old
Structure Type
Steel Movable (Lift)
Total Length
290 ft
88.4 m
Deck Width
80 ft
24.5 m
Spans
1
sections between supports
Max Span
122 ft
longest unsupported section (37.2 m)
Traffic Lanes
6 lanes
Two-way traffic
Clearance Below
73 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
443vehicles/day
29.56831°N, 90.37443°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.