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 CST S LENORE K SULLIVA
S 23 T 45 N R 7 E
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 120,209 vehicles per day and is 63 years old (reconstructed in 2016).
Its sufficiency rating of 61.3 places it below the national average of 63.6.
The NBI records a navigation clearance of 55 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 2165 feet long — a longer crossing, over 1 minute.
A standard bridge design.
About 55 feet above ground — an elevated crossing, similar to a 5-10 story building.
About 120,209 vehicles cross daily — very heavy traffic, high congestion risk.
The deck is 122 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
1963
63 years old (rebuilt 2016)
Structure Type
Steel (Continuous) Other
Total Length
2,165 ft
659.9 m
Deck Width
122 ft
37.2 m
Spans
5
sections between supports
Max Span
600 ft
longest unsupported section (182.9 m)
Traffic Lanes
8 lanes
Two-way traffic
Clearance Below
55 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
120,209vehicles/day
38.61843°N, 90.18437°W
Steel (Continuous) 00
A steel stringer bridge uses parallel steel beams (stringers) to support the deck. This is one of the most common bridge types in the US, valued for its simplicity and strength.
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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.