Almost there! Just bridging the gap...
Almost there! Just bridging the gap...
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over ROCK CREEK
03-BUT-099-40.65
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
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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 11,600 vehicles per day and is 76 years old (reconstructed in 2017).
Its sufficiency rating of 59.5 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 145 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 11,600 vehicles cross daily — moderate traffic, some congestion possible.
The deck is 43 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
1950
76 years old (rebuilt 2017)
Structure Type
Concrete (Continuous) Slab
Total Length
145 ft
44.3 m
Deck Width
43 ft
13.1 m
Spans
6
sections between supports
Max Span
26 ft
longest unsupported section (7.9 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
11,600vehicles/day
39.81922°N, 121.92222°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.