Ctt south branch chicago river lift bridge cook county illinois built 1899.
Scherzer rolling lift bridge company of chicago.
Lost scherzer rolling lift bridge over south branch chicago river on loomis street replaced by a new bridge.
Chicago may be the bascule bridge capital of the world but no tour of bascule bridges is complete without a trip down to joliet where the scherzer rolling lift bascule bridge outnumbers the chicago trunnion style bascule bridge.
Today this type of movable bridge is in fact known as a scherzer rolling lift bascule bridge.
Although the rolling lift bridge a type of bascule bridge was mechanically the most simple alternative engineers soon discovered that the span applied its load in a rolling motion on its.
Scherzer was the inventor of a refinement of the bascule bridge called the scherzer rolling lift bridge.
Ultimately though it was the trunnion bascule bridge that became a chicago staple.
The bridge span can be rotated upwards to almost 90 degrees which allows just about any type of traffic to pass under it without ever harming the bridge.
The scherzer rolling lift is a refinement patented in 1893 by the american engineer william donald scherzer.
It was patented 1901 by theodor rall.
The scherzer rolling lift bridge company the possibilities of the rolling lift type of bascule bridge being indicated bj the success of the first bridge steps were taken shortlj after the death of william scherzer to develop the principles of design conceived by him and place them before the public on a business basis.
There are four scherzer rolling lift style highway bridges in joliet whereas the chicago only contributes one.
Scherzer rolling lift bridge co.
The first scherzer rolling lift bridge was built in 1895 to span the chicago river at van buren street.
Scherzer entered into business for himself in 1893 in chicago as a consulting and contracting engineer.
X confirmed demolished or collapsed.
Scherzer rolling lift bridge company of chicago illinois.
The rarer rall type combines rolling lift with longitudinal motion on trunnions when opening.
He was there for eight years.
R former location of relocated bridge.
Special bridge conditions legend.
One of the few surviving examples is the broadway bridge 1913 in portland oregon.
Old ninth street bridge.
This bridge was designed by scherzer rolling lift bridge company.
S dismantled and or in storage.
L severe loss of historic integrity due to alteration.
The scherzer rolling lift bridge is similar to a rocking chair with large counterweights above the road level to help balance the bridge as it opens and closes.
At risk for demolition or destruction.
In chicago where the city usually built trunnion bascule bridges this is the only remaining example of this bridge type on chicago s roads.
