File:98k102 8mp Mark E. Stevens (6561547397).jpg
Original file (3,694 × 2,400 pixels, file size: 2.2 MB, MIME type: image/jpeg)
Captions
Captions
Summary
[edit].jpg&action=edit§ion=1){kind=link}
| Description |
English: Portland Canal at Conrail (L&I) Bridge:.
"Mark E. Stevens" (doc. # 528629) upbound. This view is looking NE from the Kentucky pier of the lift span, which was built in 1918 during the rebuilding of the Pennsylvania Railroad Bridge (aka 14th St. Bridge), replacing the old swing span here (see a picture at this forum post - scroll down). The lift span weighs 2.6 million lbs. and is 260 feet long between centers of end bearings, though horizontal clearance for river traffic is only 241.5 feet. Vertical clearance at pool stage is 38.8 feet when lowered and 69.8 feet when raised. When built, the lift span extended across the full width of the canal, but when the canal was widened to 500 feet in 1961 (at the time of construction of the first 1200-foot lock at McAlpine), the northeast pier was left in the middle of the canal, so cells were built to protect it. For more info on the rebuilding of the Pennsylvania Railroad Bridge, see Engineering News-Record, Vol. 82, No. 21 (May 22, 1919), pp. 1007-1011, and Vol. 82, No. 22 (May 29, 1919), pp. 1061-1064. For more info on the original iron bridge at this location, built in 1870, see Engineering News, Vol. 77, No. 6 (Feb. 8, 1917), pp. 217-222. Some years ago, these bound periodicals could be read, but not checked out, at the main branch of the Louisville Free Public Library (phone 502-574-1611). Ohio River mile 605. Louisville, Kentucky. 29-Nov-1998. File # 98k102. _____________. . Kodak PMC (Pro 400 MC), 6x9 cm. Epson V500 scanner; Vuescan software. |
| Date | |
| Source | 98k102_8mp: Mark E. Stevens |
| Author | William Alden from Louisville, Kentucky, USA |
| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
|---|
.jpg¶ms=038.263405_N_-085.771679_E_globe:Earth_type:camera_source:Flickr_&language=en){kind=link}
Licensing
[edit].jpg&action=edit§ion=2){kind=link}
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
|
This image was originally posted to Flickr by Bill Alden at https://flickr.com/photos/70020260@N04/6561547397 (archive). It was reviewed on 27 November 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:42, 27 November 2019 | | 3,694 × 2,400 (2.2 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
.jpg&oldid=772798276){kind=link}