Why do engineers love bridges? They're outstanding in their field.
Why do engineers love bridges? They're outstanding in their field.
Why was the bridge always tired? Too many crossings.
over BUTTER MILK CREEK
11.1 W.SR20 @ TWISP
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
Loading 3D model...
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 70 vehicles per day and is 66 years old (reconstructed in 2007).
Its sufficiency rating of 68.5 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 66 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 70 vehicles cross daily — very light traffic with low congestion risk.
The deck is 16 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 2007)
Structure Type
Concrete (Continuous) Stringer/Multi-beam/Girder
Total Length
66 ft
20.1 m
Deck Width
16 ft
4.9 m
Spans
3
sections between supports
Max Span
45 ft
longest unsupported section (13.7 m)
Traffic Lanes
1 lane
Daily Traffic
70vehicles/day
48.36165°N, 120.33751°W
Concrete (Continuous) Stringer/Multi-beam/Girder
A concrete stringer bridge uses reinforced concrete beams running parallel to traffic. It combines the durability of concrete with efficient beam-based load distribution.
Learn more about this bridge typeNo ratings yet. Be the first to rate this bridge!
Sign in and track Washington 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.