Almost there! Just bridging the gap...
Almost there! Just bridging the gap...
41,685 bridges are in poor condition. But this loading screen isn't one of them.
over BIG SPRING CREEK 133
LEWISTOWN-6TH AVE S
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
Loading 3D model...
This bridge has a Poor overall condition rating of 4 out of 9. This bridge is classified as being in poor condition, meaning one or more structural components have significant deterioration. Poor condition does not mean the bridge is unsafe to drive on, but it does mean repairs or replacement may be needed.
The bridge carries 437 vehicles per day and is 64 years old (reconstructed in 1975).
Its sufficiency rating of 39.5 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 51 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 437 vehicles cross daily — very light traffic with low congestion risk.
The deck is 23 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
1962
64 years old (rebuilt 1975)
Structure Type
Prestressed Concrete Slab
Total Length
51 ft
15.5 m
Deck Width
23 ft
6.9 m
Spans
2
sections between supports
Max Span
25 ft
longest unsupported section (7.6 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
437vehicles/day
47.05426°N, 109.41818°W
Prestressed Concrete Slab
A prestressed concrete slab bridge uses a flat concrete deck that has been pretensioned for additional strength. Efficient for short to medium spans.
Learn more about this bridge typeNo ratings yet. Be the first to rate this bridge!
Sign in and track Montana to receive alerts when new inspection data is published. Premium members get bridge-specific notifications.
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.