I-57 & IL 13 Single Point Urban
Interchange & Morgan Ave. Diverging Diamond Interchange
The scope of work for this project
involves several items. First the I-57 and IL Route 13
interchange will be reconstructed to a new Single Point Urban
Interchange (SPUI) configuration. Interstate 57 will be widened
to three through lanes in each direction within the project
limits and the profile grade of I-57 will be raised in order to
correct the existing low clearance (14’-4”) on IL 13. The new
SPUI configuration allows for the completion of the Morgan
Street interchange by braiding the ramps south of Morgan Avenue.
The collector-distributor roads remain north of Morgan Avenue to
combine ramps for IL Route 13 and Morgan Avenue (see detail
below).
An additional through lane will also
be added in each direction on IL 13. This additional through
lane will connect to lane addition projects to the east and west
of I-57 and will complete the lane expansion of IL 13 from 4
lanes to 6 lanes in the project area. Finally, general drainage
improvements will be made throughout.
Morgan Ave. Diverging Diamond Interchange
The general scope of work for
Morgan Avenue consists of constructing an additional structure
for Morgan Avenue over I-57 and reconstructing the roadway to a
Diverging Diamond configuration which includes, reconstructing
the existing interchange ramp terminals, constructing
interchange ramp terminals to the south of Morgan Avenue,
revising/creating the roadway profile along Morgan Avenue, new
curb and gutter, new storm sewers, new pedestrian
accommodations, new center median, revised guardrail and
signalization. The project limits are from Halfway
Road/Champion Drive to Carbon Street. The first phase of the
project, currently under construction, includes a two lane
structure over I-57 and the embankment approaching and departing
the structure. This structure is being constructed adjacent to
the existing Morgan Avenue bridge which will remain in place and
in service.
Proposed Improvement Exhibits
1.
Aerial view of proposed I-57 & IL 13 Single Point Urban
Interchange & Morgan Ave. Diverging Diamond (~43mb PDF)
2.
Schematic of proposed I-57 & IL 13 Single Point Urban
Interchange & Morgan Ave. Diverging Diamond (~346kb PDF)
3.
Typical Sections of proposed Morgan Ave. Diverging Diamond
(~80kb PDF)
4.
Plan view of temporary diamond at I-57 & IL 13 (~348kb
PDF)
5.
Plan view of I-57 & IL 13 Single Point Urban Interchange
(~426kb PDF)
6.
Detail of I-57 & IL 13 bridge aesthetics (~135kb PDF)
7.
Video drive through of Diverging Diamond Interchange and
Single Point Urban Interchange (~44mb WMV Movie)
8.
Morgan Ave. – West Alternate 1 (~1.9mb PDF)
9.
Morgan Ave. – West Alternate 2 (~1.9mb PDF)
10.
Morgan Ave. – West Alternate 3 (~1.9mb PDF)
11.
Morgan Ave. – West Alternate 4 (~1.8mb PDF)
12.
Morgan Ave. – East Alternate 1 (~2.4mb PDF)
13.
Morgan Ave. – East Alternate 2 (~2.4mb PDF)
14.
Morgan Ave. – East Alternate 3 (~2.8mb PDF)
15.
Morgan Ave. – East Alternate 3 Detail (~2.9mb PDF)
16.
Morgan Ave. – East Alternate 4 (~2mb PDF)
17.
Morgan Ave. – Aerial view of Morgan Ave. Diverging Diamond
Interchange (~4.8mb PDF)
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