Why did the truss bridge break up with the beam bridge? It needed more support.
Why did the truss bridge break up with the beam bridge? It needed more support.
Connecting the data points... literally.
over Merced River
8 mi N of Mariposa CA
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 6 out of 9. While it is not classified as structurally deficient, it shows some deterioration that is being monitored.
The bridge carries 100 vehicles per day and is 99 years old (reconstructed in 1999).
Its sufficiency rating of 43.4 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 163 feet long — a quick crossing, under 5 seconds at highway speed.
A suspension bridge — an open design, typically high above the waterway.
No height data available — likely a standard overpass height.
Only about 100 vehicles cross daily — very light traffic with low congestion risk.
The deck is 13 feet wide — a very narrow, single-lane crossing.
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
1927
99 years old (rebuilt 1999)
Structure Type
Steel Suspension
Total Length
163 ft
49.7 m
Deck Width
13 ft
3.9 m
Spans
1
sections between supports
Max Span
160 ft
longest unsupported section (48.8 m)
Traffic Lanes
1 lane
Daily Traffic
100vehicles/day
37.60440°N, 119.96762°W
Steel Suspension
A suspension bridge hangs the deck from cables supported by tall towers. This design enables the longest bridge spans in the world.
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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.