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The new 3,666 meters crossing will span the
narrow Strait of Messina and link Sicily to the
mainland. Once complete, the bridge will have a
3,300 meter main span and will serve as one of
Italy’s most important transportation
facilities.
The landmark bridge is designed to carry
two heavy railroad tracks, and six lanes of
traffic, all while being able to withstand an
earthquake of 7.1 magnitude on the Richter scale
and a wind speed over 216 kilometers/hr.
The bridge superstructure, innovative and
named as the third generation Messina style,
comprises three separate orthotropic deck steel
box girders, one for each of the Sicily and
Italy bound roadways and one for the railway.
The three box girders are connected by
transverse steel box cross girders spaced at 30
m. The superstructure is supported by pairs of
hanger cables connected to each cross beam end.
The hangers are connected to pairs of main
cables on each side of the bridge (four main
cables), with each main cable having a diameter
of 1.26 m. The main cables are anchored at each
bridge end in massive reinforced concrete anchor
blocks. The main cables are supported by two
steel main towers, each with a height of 399 m
above mean sea level. The main towers are
founded on reinforced and post-tensioned
concrete footings, which are supported on
underlying rock formations.
Parsons is the Program Management Consultant
(PMC) for the project. As part of the PMC scope
of work, Parsons performed an independent design
check and verification, and performed
independent wind tunnel testing of both the
superstructure and towers.
A Vice President at Parsons, Kenneth Serzan has
more than 30 years of experience providing
engineering and design services for long-span
bridge projects throughout the world, including
suspension, arch and cable stayed bridges. Mr.
Serzan has recently served as the Bridge Manager
for the independent design check of the Messina
Straits Bridge and was the Technical Director
for the design and construction of the two
newest suspension bridges in the western
hemisphere, the Carquinez Strait Bridge in
California and the Tacoma Narrows Bridge in
Washington state. In addition, Mr. Serzan has
been the project manager for the
rehabilitation/reconstruction of numerous iconic
suspension bridges, including the Brooklyn,
Verrazano Narrows, George Washington and Tagus
River bridges and was involved with the design
of two bridges that have been awarded the
Outstanding Civil Engineering Award by the ASCE,
the Woodrow Wilson Bridge (USA) and
Rion-Antirion Bridge (Greece).
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