Analyzing deck conditions, superstructure ratings, and bad puns...
Analyzing deck conditions, superstructure ratings, and bad puns...
Connecting the data points... literally.
over ROCK CREEK
0.4 E JCT SR 27
Parametric wireframe generated from real NBI dimensions. Drag to rotate, scroll to zoom.
Loading 3D model...
This bridge has a Fair overall condition rating of 6 out of 9. While it is not classified as structurally deficient, it shows some deterioration that is being monitored.
The bridge carries 4,017 vehicles per day and is 106 years old (reconstructed in 1989).
Its sufficiency rating of 63.5 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 99 feet long — a quick crossing, under 5 seconds at highway speed.
An arch bridge design with some openness to the surroundings.
No height data available — likely a standard overpass height.
About 4,017 vehicles cross daily — light traffic, a smooth crossing.
The deck is 45 feet wide with 2-3 lanes — moderate width.
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
1920
106 years old (rebuilt 1989)
Structure Type
Concrete (Continuous) Arch (Deck)
Total Length
99 ft
30.2 m
Deck Width
45 ft
13.6 m
Spans
2
sections between supports
Max Span
47 ft
longest unsupported section (14.3 m)
Traffic Lanes
2 lanes
Two-way traffic
Daily Traffic
4,017vehicles/day
47.45219°N, 117.13486°W
Concrete (Continuous) Arch (Deck)
A concrete arch bridge uses a curved concrete structure to transfer loads through compression. Concrete arches are durable and can be very aesthetically pleasing.
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.