Scherzer in 1885 was employed as the assistant to the chief engineer of the keystone bridge company of chicago.
Scherzer rolling lift bridge company of chicago.
R former location of relocated bridge.
The scherzer rolling lift is a refinement patented in 1893 by the american engineer william donald scherzer.
Scherzer was the inventor of a refinement of the bascule bridge called the scherzer rolling lift bridge.
Scherzer entered into business for himself in 1893 in chicago as a consulting and contracting engineer.
In chicago where the city usually built trunnion bascule bridges this is the only remaining example of this bridge type on chicago s roads.
S dismantled and or in storage.
At risk for demolition or destruction.
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.
X confirmed demolished or collapsed.
The first scherzer rolling lift bridge was built in 1895 to span the chicago river at van buren street.
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.
Ultimately though it was the trunnion bascule bridge that became a chicago staple.
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.
The rarer rall type combines rolling lift with longitudinal motion on trunnions when opening.
The bridge was 115ft long and carried street traffic.
Lost scherzer rolling lift bridge over south branch chicago river on loomis street replaced by a new bridge.
Special bridge conditions legend.
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.
This bridge was designed by scherzer rolling lift bridge company.
L severe loss of historic integrity due to alteration.
There are four scherzer rolling lift style highway bridges in joliet whereas the chicago only contributes one.
Ctt south branch chicago river lift bridge cook county illinois built 1899.
One of the few surviving examples is the broadway bridge 1913 in portland oregon.
He was there for eight years.
Old ninth street bridge.
It was patented 1901 by theodor rall.
Scherzer rolling lift bridge company of chicago illinois.
The search generated disagreement between the scherzer rolling lift company of chicago and chicago department of public works city engineer john e.
