Connecting the data points... literally.
Connecting the data points... literally.
Did you know? The oldest bridge in the NBI was built in 1697.
over SOUTH SISTERS CREEK
41.5 miles NE of Hwy 101
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 50 vehicles per day and is 71 years old.
Its sufficiency rating of 68.5 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 75 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.
Only about 50 vehicles cross daily — very light traffic with low congestion risk.
The deck is 16 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
1955
71 years old
Structure Type
Concrete (Continuous) Tee Beam
Total Length
75 ft
22.9 m
Deck Width
16 ft
4.9 m
Spans
3
sections between supports
Max Span
50 ft
longest unsupported section (15.2 m)
Traffic Lanes
1 lane
Daily Traffic
50vehicles/day
43.82417°N, 123.66028°W
Concrete (Continuous) Tee Beam
A concrete tee beam bridge uses T-shaped cross-section beams where the top flange serves as part of the deck, efficiently using concrete in both compression and tension.
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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.