Connecting the data points... literally.
Connecting the data points... literally.
What did one bridge say to the other? 'You're looking a bit stressed.'
over Alvernon Channel
100 ft E Jct Alvernon Way
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 31,000 vehicles per day and is 76 years old (reconstructed in 1982).
Its sufficiency rating of 73.5 is above the national average of 63.6.
For travelers with bridge anxiety
This bridge is likely to be a comfortable crossing for most travelers.
This bridge is 38 feet long — a quick crossing, under 5 seconds at highway speed.
This is a culvert — you may not even notice you're crossing it.
No height data available — likely a standard overpass height.
About 31,000 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 91 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
1950
76 years old (rebuilt 1982)
Structure Type
Concrete (Continuous) Culvert
Total Length
38 ft
11.6 m
Deck Width
91 ft
27.7 m
Spans
3
sections between supports
Max Span
12 ft
longest unsupported section (3.7 m)
Traffic Lanes
6 lanes
Two-way traffic
Daily Traffic
31,000vehicles/day
32.26510°N, 110.90950°W
Concrete (Continuous) Culvert
A concrete culvert is a drainage structure that allows water to flow beneath a road. While technically not a traditional bridge, culverts over 20 feet are tracked in the national inventory.
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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.