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Locationless (Reverse) Cache

Vertical Lift Bridges of the World

A cache by familygeo Send Message to Owner Message this owner
Hidden : 12/26/2002
Difficulty:
2 out of 5
Terrain:
1 out of 5

Size: Size: virtual (virtual)

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Geocache Description:

Your task is to locate Vertical Lift Bridges, anywhere in the
world.

The first modern vertical lift bridge, where the span is hoisted by means of cables that pass over sheaves placed atop towers and connected to counterweights that move up and down, was developed by J.A.L. Waddell and built in Chicago in 1892. The technology was used extensively by the railroads after 1908 when Waddell and his partner John Lyle Harrington refined the bridge type into a
rational and well-intergrated design.
1) After you've found a vertical lift bridge, go visit it, get the coordinates, a picture or two of it, and if it is in use or not still as a lift bridge.

Then log it and post your pictures! At least one of the photos must be of you and your GPS there. (No old vacation shots or photos off the internet!)

2) Include the coordinates, city/county/state/country and the name of the bridge (if it has one).

3) Include any interesting information about the structure
that you can.

4) Limited to one find per cacher! And once a bridge
has been found, it can't be used again. Please double check with (visit link) or some other tool. There are starting to be too many duplicates and your log may be removed without notice.
5) If you can't post your photos when you create your log, please create a Post a Note and when you have your photos ready, revise it to a Found It. I am aware of approximately 34 world-wide, although I'm sure there are
probably many hidden gems out there waiting to be found and
documented.

To get you started I have included the Meridian Bridge
(AKA Yankton Meridian Bridge, also is known as South Dakota
Structure Number 68-122-210) This structure was designed by
Harrington, Howard and Ash consulting engineers (a predecessor of HTNB Corp) - Note that one of the designers was Harrington. This structure was built between 1921 and 1924 and was built as a toll bridge for the Meridian Highway Bridge Company. This vertical lift bridge is somewhat unique in that it is a double deck vertical lift
bridge. The orginal design was for Railroad traffic on the bottom deck and highway traffic on the top deck. The railroad line never materialized and in 1952 the bottom deck was converted for highway traffic. In 1983, the counterweights were removed and this bridge is no longer functional as a lift bridge. A dam (Gavin's Point Dam)
was built upstream from this location and the need for barge traffic ended the need for a lift bridge. This structure is between Yannkton, South Dakota and Nebraska on US 81 over the Missouri River.

PLEASE NOTE: The span is hoisted by means of cables that
pass over sheaves placed atop towers and connected to
counterweights that move up and down. Please don't mistake the very common Bascule bridge that rotates and lifts one end up to allow a ship or vessel to pass. The Bascule type bridge typically has two spans that both rotate and lift up to allow passage. The tell tale sign for Vertical Lift bridges are the two large towers with big counterweights and cables attached. If in doubt submit and we'll
review. Thanks and sorry for any confusion some may have had.

Additional Hints (Decrypt)

Vs lbh ernyyl arrq fbzr uryc, qb fbzr frnepuvat ba gur Vagrearg be rznvy zr sbe fbzr fhttrfgvbaf.

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)



 

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Current Time:
Last Updated: on 11/15/2017 3:57:45 PM (UTC-08:00) Pacific Time (US & Canada) (11:57 PM GMT)
Rendered From:Unknown
Coordinates are in the WGS84 datum

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