The Greater Pittsburgh Exposition was an annual event which occurred in the fall of each year between 1889 and 1916. The exposition was located where Point State Park and PNC Park are in Pittsburgh today. The grounds were spread between downtown Pittsburgh and the city of Allegheny (today the North Shore).
Twin Gravity Railway (1895 – 1900)
The first roller coaster at the Expo was a Switchback Railway. The exposition was aware of the demand of having a roller coaster of some type; to meet this demand, the exposition installed not only one Switchback Railway, but a second one right next to it.

This may be the first instance of a twin roller coaster operation.

The twin coasters opened on September 4, 1895. They were each five hundred feet long, for a round trip of one thousand feet, cost $10,000 to construct, and cost a nickel to ride. It was manufactured by James A. Griffiths, of Connecticut, who made several other switchbacks in the Pittsburgh area. In 1896, the coasters were renamed Gravity Railway.

Toboggan Slide (1901 – 1916)
T.M. Harton Company manufactured and operated many of the other rides at the Greater Pittsburgh Exposition. Harton manufactured the third roller coaster the exposition had – a figure-8 roller coaster called Toboggan Slide. Harton purchased the right to build the Toboggan Slide from E. Joy Morris, patentee of that kind of roller coaster.
Built at a cost of $15,000 in 1901, this coaster was built because a large fire destroyed a significant part of the Exposition grounds, including the Switchback Railway. The fire occurred on St. Patrick’s Day 1901, and property loss was reported at a value of $242,000.


Table of inflation adjustments for costs mentioned in this article.
$10,000 in 1895 US dollars = $274,380.23 in 2017 US dollars
$0.05 in 1895 US dollars = $1.37 in 2017 US dollars
$15,000 in 1901 US dollars = $411,570.35 in 2017 US dollars
$242,000 in 1901 US dollars = $6,640,001.58 in 2017 US dollars
To learn more about the Greater Pittsburgh Exposition, check out Pittsburghhockey.net which discusses the Winter Garden, one of the buildings that was part of the expo, and The Brookline Connection, which also discusses Exposition Hall. This blog post from That’s Church in 2013 also gives some good background on what was around the Point in the late 19th Century / early 20th Century.
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