Description of the "Flyover"
The term "Flyover" is used to describe an E-ZPass only ramp
which crosses another roadway or ramp. The narrative below describes the
location and number of lanes for each of the proposed Flyover ramps.
In general, the proposed Flyover ramps consist of a single lane ramp connecting
the Thruway and Northway. The following Interchange 24 Concepts include
a flyover ramp:
Concept H (Exit 1 Flyover) – The Flyover ramp would exit the Thruway
northbound north of Washington Avenue Extension. This one-lane ramp would
cross over two ramps: the ramp from the Thruway to the Northway southbound
and the ramp from the Northway southbound to I-90 eastbound. The Flyover
ramp would then pass under the Northway and merge with the two lanes of
the existing Thruway to Northway northbound ramp. The new third lane, added
by the flyover ramp, would drop prior to the ramp’s merge with the
Northway northbound.
Concept J (Exit 1 & Western Ave Flyover) – This concept includes
two flyover ramps, one at Northway Exit 1 and one at Western Avenue.
The Exit 1 Flyover ramp would exit the Thruway with the Interchange 24
eastbound exiting traffic and then diverge from this exit ramp prior to
the Interchange 24 toll plaza. This one-lane ramp would cross over two
ramps: the ramp from the Thruway to the Northway southbound and the ramp
from the Northway southbound to I-90 eastbound. The Flyover ramp would
then pass under the Northway and merge with the two lanes of the existing
Thruway to Northway northbound ramp. The new third lane, added by the flyover
ramp, would drop prior to the ramp’s merge with the Northway northbound.
The Western Ave Flyover ramp would exit the Thruway just north of Schoolhouse
Road and merge with the Western Avenue eastbound/Schoolhouse Road entrance
ramp to the Northway prior to the bridge over Western Avenue. The proposed
one-lane ramp would combine with the existing one-lane ramp, resulting
in a two-lane bridge over Western Avenue. The elevation of the flyover
ramp would closely match the elevation of the existing Northway entrance
ramp over Western Avenue. The length of the new ramp would be approximately
925 feet. The proposed two-lane ramp would continue northward to the existing
merge from the Western Avenue westbound entrance ramp to the Northway.
At this point the new lane from the Flyover would drop and the existing
two-lane cross-section of the Northway would continue northbound to Exit
1.
Concept K (Western Ave Flyover) – The proposed ramp is similar to
the Concept J Western Ave Flyover. The ramp would diverge from the Thruway
near Schoolhouse Road and merge with the Northway entrance ramp from Western
Avenue eastbound/Schoolhouse road. The proposed one-lane ramp would combine
with the existing one-lane ramp, resulting in a two-lane bridge over Western
Avenue. The elevation and length of the proposed ramp would be the same
as Concept J.
Two and Four Mainline Barriers Concepts (Interchange
24, Western Ave Flyover) – The
proposed ramp is similar to the Interchange 24 Concepts J and K Western
Ave Flyover ramp, except the ramp would be a two-lane ramp between the
Thruway and Northway. The proposed two-lane ramp would combine with the
existing one-lane ramp, resulting in a three-lane bridge over Western Avenue.
The two additional lanes associated with this ramp would merge with the
Northway and taper into the Northway prior to the northbound entrance ramp
from Crossgates Mall. The elevation and length of the proposed ramp would
be the same as Concept J.
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