20th Avenue NE Bridge
The 20th Avenue NE Bridge (also known as the Ravenna Park Bridge) is a three-hinged, steel, lattice-arched bridge that spans a ravine in Seattle's Ravenna Park. It was designed by Frank M. Johnson under the direction of city engineer Arthur Dimock.[2] Built in 1913, the structure is both listed in the National Register of Historic Places and is a designated city landmark.[3][4]
20th Avenue NE Bridge | |
|---|---|
 | |
| Coordinates | 47°40′19″N 122°18′21″W |
| Other name(s) | Ravenna Park Bridge |
| Heritage status | National Register of Historic Places, Seattle city landmark |
| Characteristics | |
| Design | Deck Arch |
| Material | Steel |
| Total length | 354 feet (108 m) |
| Width | 18-foot (5.5 m) |
| Clearance below | 41 feet (12 m) |
| History | |
| Designer | Frank M. Johnson |
| Engineering design by | Arthur Dimock |
| Opened | 1913 |
| Closed | 1975 (to vehicles only) |
| Designated | January 17, 1977[1] |
| |
The structure is 354 ft (108 m) long. It has a 250 ft (76 m) arch that rises 41 ft (12 m) over the ravine. It supports an 18 ft (5.5 m) reinforced concrete roadway. The road has been closed to vehicular traffic since 1975, but it is accessible by pedestrians.[2]
The newly constructed 20th Avenue NE Bridge (now known as Ravenna Park Bridge), Seattle, Washington, U.S., 1914. Originally a bridge for automobiles, it was eventually pedestrianized.
References
 |
Wikimedia Commons has media related to Ravenna Park Bridge. |
- "Landmarks and Designation". City of Seattle. Retrieved 2013-03-05.
- Long, Priscilla (July 23, 2008). "Seattle's Ravenna Park Bridge is constructed in 1913". HistoryLink.org Online Encyclopedia of Washington State History. Archived from the original on 2011-10-03. Retrieved March 24, 2011.
- National Register of Historic Places; Annual Listing of Historic Properties (Part II) (PDF). National Park Service. March 1, 1983. p. 8669.
- "Individual Landmarks". City of Seattle Department of Neighborhoods. Archived from the original on 2010-06-04. Retrieved March 25, 2011.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.