Northerly Project Limit of Work The northerly project limit of
work could be located just south of the New Hampshire border.
Toll Road Bridge The Toll Road Bridge is located at Exit 60,
just south of the northerly project limit. The potential treatment of this bridge
will vary based on the widening of I-95 and the northerly terminus of the project.
Rte. 286 Bridge The Route 286 Bridge crosses I-95 south of the
Toll Road Bridge. The potential treatment of this bridge will vary based on the
widening of I-95 and the northerly terminus of the project.
Northerly Project Terminus Options It is the goal of this project
to complete the four travel lane section within the project limits consistent with
the proposed cross section of the bridge and consistent with the existing I-95 roadway
section north and south of the project limits. Two options exist for the northern
end of the corridor. Option One maintains four northbound lanes through the I-495
merge to the project northerly limit. Option Two drops the fourth northbound lane
prior to I-495 and shortens the project limit.
I-495 NB Bridge The I-495 Bridge crosses I-95 just south of Route
286. The possible widening of I-95 will affect the ramp that connects northbound
traffic on I-495 to northbound traffic on I-95.
Former Railroad Bridges Bridges belonging to former railroad
routes cross I-95 just north of Exit 58. These bridges will be used in the future
to connect the Powwow Trail and the Ghost Trail, a former rail route that has been
converted into pedestrian and bike paths. The potential treatment of these bridges
will vary based on the widening of I-95. The extension of the bike trails will not
be affected by the widening.
Rte. 110 Bridges The Route 110 bridges cross I-95 at Exit 58,
just south of the former railroad bridge crossing. The potential treatment/widening
options of these bridges will vary based on the widening of I-95.
Evans Place Bridges The Evans Place bridges cross I-95 just north
of the Merrimack River. The potential treatment / reconstruction of these bridges
will vary based on the design decision for the reconstruction of the Whittier Bridge.
Bridge Type Options The current structure is a five-span truss
bridge with a steel through arch, similar to the Bourne Bridge over the Cape Cod
Canal. MassHighway is in the early stages of developing project alternatives including
possible bridge types and staging methods. A preferred alternative will be recommended
to MassHighway by the design team upon a complete evaluation of possible alternatives
and public comment and participation.
Construction Phasing Options The design team is currently evaluating
several staging options for the construction of the new bridge. One option, the
Progressive Staging Option, includes building a new section to the east to accommodate
the north bound traffic, demolishing half of the existing structure to make room
for the new south bound lanes and then demolishing the remaining structure. Another
option includes building the entire structure for the north and south bound traffic
independent of the existing bridge, shifting traffic to the new structure and demolishing
the existing structure in one phase. There are several variations for this phase
including a completely new structure to the east (East Side Concept), a new structure
to the west (West Side Concept) and a new structure to the east and west (East and
West Side Concept). The final phasing option, the No Build, consists of two alternatives
- Full Rehabilitation and Continued Maintenance. The preferred construction phasing
will be evaluated and selected based on bridge type, ease of construction and minimization of
right-of-way and environmental impacts.
I-95 Widening Options Six options exist for the widening of I-95.
They include a no-build option, a no-widening option, a progressive option, an east
side option, a west side option and a simultaneous east-west option.
Ferry Road/Pine Hill Road Bridge The Ferry Road/Pine Hill Road
Bridge crosses I-95 just south of the Merrimack River. The potential treatment of
this bridge will vary based on the design decision for the reconstruction of the
Whittier Bridge.
Southerly Project Limit of Work The southerly project limit of
work is located just north of Exit 57 in Newburyport.
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