Fun fact: Covered bridges were roofed to protect the wood, not the travelers.
Fun fact: Covered bridges were roofed to protect the wood, not the travelers.
Gathering condition ratings from coast to coast...
over BOUNDARY CHANNEL DRIVE
0.38FR110/0.31TO14ST.BR.
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 126,751 vehicles per day and is 76 years old.
Its sufficiency rating of 54.0 places it below the national average of 63.6.
The NBI records a navigation clearance of 13 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 74 feet long — a quick crossing, under 5 seconds at highway speed.
A standard overpass design with solid barriers on each side.
About 13 feet above ground — standard overpass height.
About 126,751 vehicles cross daily — very heavy traffic, high congestion risk.
The deck is 195 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
1950
76 years old
Structure Type
Concrete Frame
Total Length
74 ft
22.6 m
Deck Width
195 ft
59.5 m
Spans
1
sections between supports
Max Span
74 ft
longest unsupported section (22.6 m)
Traffic Lanes
13 lanes
Two-way traffic
Clearance Below
13 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
126,751vehicles/day
38.86991°N, 77.04633°W
Concrete Frame
A concrete frame bridge is a rigid structure where the deck and supports are monolithically connected, creating a strong, continuous structure.
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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.