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Connecting the data points... literally.
over MARTIN STREAM
0.1 MI NW SLY JCT RTE 4
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 4,004 vehicles per day and is 90 years old (reconstructed in 1968).
Its sufficiency rating of 59.4 places it below the national average of 63.6.
For travelers with bridge anxiety
This bridge may cause some awareness for travelers with bridge anxiety, but has manageable characteristics.
This bridge is 39 feet long — a quick crossing, under 5 seconds at highway speed.
A standard overpass design with solid barriers on each side.
No height data available — likely a standard overpass height.
About 4,004 vehicles cross daily — light traffic, a smooth crossing.
The deck is 32 feet wide with 1-2 lanes — a narrower crossing.
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
1936
90 years old (rebuilt 1968)
Structure Type
Concrete Tee Beam
Total Length
39 ft
12.0 m
Deck Width
32 ft
9.7 m
Spans
1
sections between supports
Max Span
34 ft
longest unsupported section (10.5 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
4,004vehicles/day
44.37900°N, 70.25064°W
Concrete Tee Beam
A concrete tee beam bridge uses T-shaped cross-section beams where the top flange serves as part of the deck, efficiently using concrete in both compression and tension.
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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.