Crunching the numbers on America's infrastructure...
Crunching the numbers on America's infrastructure...
Why did the bridge go to therapy? It had too many spans of anxiety.
over 23 1/2 Street SW
3 EAST 3 SOUTH CENTER
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 385 vehicles per day and is 33 years old.
Its sufficiency rating of 61.4 places it below the national average of 63.6.
The NBI records a navigation clearance of 27 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 224 feet long — a short crossing, about 10-15 seconds.
A standard overpass design with solid barriers on each side.
About 27 feet above ground — moderate height, similar to a 3-5 story building.
Only about 385 vehicles cross daily — very light traffic with low congestion risk.
The deck is 31 feet wide with 1-2 lanes — a narrower crossing.
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
1993
33 years old
Structure Type
Prestressed Concrete Box Beam (Single/Spread)
Total Length
224 ft
68.3 m
Deck Width
31 ft
9.3 m
Spans
3
sections between supports
Max Span
92 ft
longest unsupported section (28.0 m)
Traffic Lanes
2 lanes
Two-way traffic
Clearance Below
27 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
385vehicles/day
47.07387°N, 101.23631°W
Prestressed Concrete Box Beam (Single)
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.