Crunching the numbers on America's infrastructure...
Crunching the numbers on America's infrastructure...
Why was the bridge always tired? Too many crossings.
over MISSOURI RIVER
3 WEST OF ND 1804
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 5,070 vehicles per day and is 21 years old.
Its sufficiency rating of 76.0 is above the national average of 63.6.
The NBI records a navigation clearance of 53 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 has some features that may be challenging for travelers with bridge anxiety. See the tips below for a more comfortable crossing.
This bridge is 4517 feet long — an extended crossing, several minutes.
A standard bridge design.
About 53 feet above ground — an elevated crossing, similar to a 5-10 story building.
About 5,070 vehicles cross daily — light traffic, a smooth crossing.
The deck is 53 feet wide with 3-4 lanes — standard 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
2005
21 years old
Structure Type
Prestressed Concrete (Continuous) Segmental Box Girder
Total Length
4,517 ft
1376.8 m
Deck Width
53 ft
16.1 m
Spans
15
sections between supports
Max Span
310 ft
longest unsupported section (94.5 m)
Traffic Lanes
2 lanes
Two-way traffic
Clearance Below
53 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
5,070vehicles/day
47.97979°N, 102.56160°W
Prestressed Concrete (Continuous) Segmental Box Girder
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.