Crunching the numbers on America's infrastructure...
Crunching the numbers on America's infrastructure...
Why was the bridge always tired? Too many crossings.
over HETCH HETCHY AQUEDUCT
04-SCL-880-7.98-MPS
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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 150,000 vehicles per day and is 24 years old.
Its sufficiency rating of 77.3 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 54 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 150,000 vehicles cross daily — very heavy traffic, high congestion risk.
The deck is 115 feet wide with multiple lanes — easy to stay in a center lane.
This bridge crosses over land, not water — no water views 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
2002
24 years old
Structure Type
Concrete (Continuous) Slab
Total Length
54 ft
16.6 m
Deck Width
115 ft
35.0 m
Spans
3
sections between supports
Max Span
18 ft
longest unsupported section (5.4 m)
Traffic Lanes
3 lanes
One-way traffic
Daily Traffic
150,000vehicles/day
37.41916°N, 121.91451°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.