Bridges: the original social network. Connecting communities since 850 BC.
Bridges: the original social network. Connecting communities since 850 BC.
Almost there! Just bridging the gap...
over HETCH HETCHY AQUEDUCT
04-ALA-880-7.32-FMT
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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 187,000 vehicles per day and is 68 years old (reconstructed in 1993).
Its sufficiency rating of 66.4 is above 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 109 feet long — a quick crossing, under 5 seconds at highway speed.
A standard overpass design with solid barriers on each side.
No height data available — likely a standard overpass height.
About 187,000 vehicles cross daily — very heavy traffic, high congestion risk.
The deck is 141 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
1958
68 years old (rebuilt 1993)
Structure Type
Concrete (Continuous) Slab
Total Length
109 ft
33.2 m
Deck Width
141 ft
42.9 m
Spans
5
sections between supports
Max Span
21 ft
longest unsupported section (6.4 m)
Traffic Lanes
8 lanes
Two-way traffic
Daily Traffic
187,000vehicles/day
37.53091°N, 122.00397°W
Concrete (Continuous) Slab
A concrete slab bridge is a simple, solid concrete deck that acts as both the structural support and driving surface. Common for short spans, they are durable and low-maintenance.
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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.