Rating:
1 vote

Ravenna Park Ravine Bridge

Photos 

Elevation.

Creative Commons Attribution-Share Alike 3.0 Unported

Photo taken by Joe Mabel

View this photo at Wikimedia Commons

BH Photo #190180

Map 

Street View 

Facts 

Overview
Steel arch bridge over Ravenna Park Ravine on 20th Avenue
Location
Seattle, King County, Washington
Status
Open to pedestrians
History
Built 1912
Builders
- Frank M. Johnson (Designer)
- J.R. Wood & Co. of Seattle, Washington. (Contractor)
Design
Steel deck arch bridge.
Dimensions
Length of largest span: 250.0 ft.
Total length: 354.0 ft.
Deck width: 18.0 ft.
Recognition
Posted to the National Register of Historic Places
Also called
20th Avenue Bridge
Approximate latitude, longitude
+47.67192, -122.30630   (decimal degrees)
47°40'19" N, 122°18'23" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/552074/5280069 (zone/easting/northing)
Quadrangle map:
Seattle North
Inventory numbers
85128000000
BH 47274 (Bridgehunter.com ID)

Update Log 

  • December 5, 2020: New photo from Geoff Hubbs
  • January 20, 2017: New Street View added by Dana and Kay Klein
  • December 10, 2010: Added by Nathan Holth

Sources 

Comments 

Ravenna Park Ravine Bridge
Posted August 18, 2020, by Nathan Holth (webmaster [at] historicbridges [dot] org)

I believe this is a three hinged arch bridge. It is very rare, but some arch bridges lack a true arch shape, and some can come to a point at the crown hinge. Here is another extreme example: https://historicbridges.org/bridges/browser/?bridgebrowser=m...

Ravenna Park Ravine Bridge
Posted August 17, 2020, by Tony Dillon (spansaver [at] hotmail [dot] com)

Some type of hinged arch perhaps.

Ravenna Park Ravine Bridge
Posted August 17, 2020, by Aaron Peterson (myusualnickname [at] gmail [dot] com)

We are curious about the middle of the bridge, where it looks to be a pinned connection between two halves.

We are unfamiliar with this detail.