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City of Cape Girardeau, Missouri
The Southern Expressway extension completes the construction
of a major arterial street from Route 74 to US Highway 61
(South Kingshighway). This arterial will provide access to
the new
high school and vocational school campus and other undeveloped
property in southwest Cape Girardeau. The project is currently
under contract for $690,471.07, which was under the engineer’s
estimate of $861,714.45.
Originally planned in the late 1980’s,
the roadbed was graded as part of the Southwest Trunk Sewer
project.
However, the original design was modified from a 40-foot
commercial street to a four (4) lane 48 foot wide arterial.
The project is approximately 2,800 feet in length and will
include construction of a 48-foot wide concrete pavement
section with upright curbs. An extensive storm sewer system
was designed to accommodate pavement drainage and enclose
existing ditches. A large stormwater detention basin will
be constructed upstream of the project to combine the required
detention from the project and other developments in the
area.
The existing signalized intersection at South Kingshighway
will be improved as part of the project. Improvements include
relocation of a service road, median pavement modifications
for turning radii, and new mast arms and signals. Dual
left turn lanes will be added to two approaches to accommodate
the peak volume of traffic expected.
The intersection of
Southern Expressway, Silver Springs Road, and Mt. Auburn
Road will also be constructed with this
project. The horizontal alignment of Silver Springs Road
north of the proposed intersection was redesigned to create
a single point intersection. The intersection was designed
with three 60-foot wide approaches and one 36-foot wide
approach. A preliminary traffic signal design was completed
and conduits
will be installed to accommodate future installation.
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