Connecting the data points... literally.
Connecting the data points... literally.
Fun fact: Covered bridges were roofed to protect the wood, not the travelers.
over I 405 NB SR55 SB RAMPS
12-ORA-405-8.80
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 5 out of 9. While it is not classified as structurally deficient, it shows some deterioration that is being monitored.
The bridge carries 5,000 vehicles per day and is 19 years old.
Its sufficiency rating of 59.6 places it below the national average of 63.6.
The NBI records a navigation clearance of 20 feet — the minimum vertical space below the bridge deck. The total height of the bridge structure (including towers, railings, and superstructure) may be higher.
For travelers with bridge anxiety
This bridge may cause some awareness for travelers with bridge anxiety, but has manageable characteristics.
This bridge is 2838 feet long — a longer crossing, over 1 minute.
A standard overpass design with solid barriers on each side.
About 20 feet above ground — moderate height, similar to a 3-5 story building.
About 5,000 vehicles cross daily — light traffic, a smooth crossing.
The deck is 58 feet wide with 3-4 lanes — standard width.
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
2007
19 years old
Structure Type
Prestressed Concrete (Continuous) Box Beam (Multiple)
Total Length
2,838 ft
865.0 m
Deck Width
58 ft
17.7 m
Spans
13
sections between supports
Max Span
253 ft
longest unsupported section (77.2 m)
Traffic Lanes
2 lanes
Two-way traffic
Clearance Below
20 ft
navigation clearance under deck
Clearance height compared to familiar objects
Height shown is the navigation clearance below the bridge deck. The total height of the bridge structure (including towers and superstructure) may be higher.
Daily Traffic
5,000vehicles/day
33.69044°N, 117.87019°W
Prestressed Concrete (Continuous) Box Beam (Multiple)
A prestressed concrete box beam bridge combines hollow box sections with prestressing technology, enabling longer spans with reduced weight and material usage.
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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.