Fun fact: The average American crosses 4 bridges a day without even noticing.
Fun fact: The average American crosses 4 bridges a day without even noticing.
What do you call a bridge that tells jokes? A pun-toon bridge.
over 18TH STREET
11-SD-005-R10.43-NATC
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 82,000 vehicles per day and is 75 years old (reconstructed in 1965).
Its sufficiency rating of 73.5 is above the national average of 63.6.
The NBI records a navigation clearance of 16 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 is likely to be a comfortable crossing for most travelers.
This bridge is 103 feet long — a quick crossing, under 5 seconds at highway speed.
A standard overpass design with solid barriers on each side.
About 16 feet above ground — standard overpass height.
About 82,000 vehicles cross daily — heavy traffic, congestion likely during rush hours.
The deck is 100 feet wide with multiple lanes — easy to stay in a center lane.
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
1951
75 years old (rebuilt 1965)
Structure Type
Concrete (Continuous) Slab
Total Length
103 ft
31.4 m
Deck Width
100 ft
30.4 m
Spans
3
sections between supports
Max Span
40 ft
longest unsupported section (12.2 m)
Traffic Lanes
6 lanes
One-way traffic
Clearance Below
16 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
82,000vehicles/day
32.66533°N, 117.10981°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.