Connecting the data points... literally.
Connecting the data points... literally.
Did you know? The oldest bridge in the NBI was built in 1697.
over FOSTER CITY LAGOON
04-SM-092-R13.83-FSTC
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This bridge has a Fair overall condition rating of 6 out of 9. While it is not classified as structurally deficient, it shows some deterioration that is being monitored.
The bridge carries 86,000 vehicles per day and is 59 years old (reconstructed in 1996).
Its sufficiency rating of 73.3 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 521 feet long — a short crossing, about 10-15 seconds.
A standard overpass design with solid barriers on each side.
No height data available — likely a standard overpass height.
About 86,000 vehicles cross daily — heavy traffic, congestion likely during rush hours.
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
1967
59 years old (rebuilt 1996)
Structure Type
Concrete (Continuous) Slab
Total Length
521 ft
158.8 m
Deck Width
141 ft
43.1 m
Spans
18
sections between supports
Max Span
52 ft
longest unsupported section (15.8 m)
Traffic Lanes
8 lanes
Two-way traffic
Daily Traffic
86,000vehicles/day
37.56612°N, 122.27034°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.