Fetching data from the National Bridge Inventory...
Fetching data from the National Bridge Inventory...
Why did the truss bridge break up with the beam bridge? It needed more support.
over BRADLEY BROOK
2.3 MI FR NH RTE 4
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 96 vehicles per day and is 66 years old (reconstructed in 2000).
Its sufficiency rating of 67.7 is above 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 31 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.
Only about 96 vehicles cross daily — very light traffic with low congestion risk.
The deck is 15 feet wide — a very narrow, single-lane 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
1960
66 years old (rebuilt 2000)
Structure Type
Wood/Timber Slab
Total Length
31 ft
9.5 m
Deck Width
15 ft
4.7 m
Spans
1
sections between supports
Max Span
30 ft
longest unsupported section (9.1 m)
Traffic Lanes
1 lane
Daily Traffic
96vehicles/day
43.41704°N, 71.82306°W
Wood/Timber Slab
A timber stringer bridge uses wooden beams as the primary structure. While less common today, timber bridges remain practical for low-traffic rural roads and historic settings.
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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.