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Crunching the numbers on America's infrastructure...
over SAN GABRIEL RIV NF
0.1MI E/O SAN GBL CYN RD
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 1,960 vehicles per day and is 77 years old.
Its sufficiency rating of 59.1 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 652 feet long — a short crossing, about 10-15 seconds.
A truss bridge — the steel framework can provide a sense of enclosure.
No height data available — likely a standard overpass height.
About 1,960 vehicles cross daily — light traffic, a smooth crossing.
The deck is 38 feet wide with 2-3 lanes — moderate width.
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
1949
77 years old
Structure Type
Steel Truss (Deck)
Total Length
652 ft
198.7 m
Deck Width
38 ft
11.6 m
Spans
4
sections between supports
Max Span
160 ft
longest unsupported section (48.8 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
1,960vehicles/day
34.23904°N, 117.85117°W
Steel Truss (Deck)
A steel truss bridge uses a framework of interconnected triangular elements. The geometric rigidity of triangles makes this design extremely efficient at distributing loads.
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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.