11/07/2008
-
Walden Street at Raymond
Street:
Saturday, November 8, the City’s
contractor, Newport Construction,
has scheduled work on the raised
intersection of Walden at Raymond
(weather permitting).
Work hours will be from 7 am
to 4 pm, during which the intersection
will be closed to vehicle traffic.
Work was scheduled on Saturday
due to lower traffic volumes.
The contractor expects to complete
construction on the base of
the new intersection on Saturday,
and then will work on placing
pavers and asphalt during the
week. Weather permitting, they
hope to finish the raised intersection
by the end of next week.
Walden Street at Sherman
Street
Paving of the remainder of the
section of Walden Street, near
Sherman Street, has been scheduled
for during the daytime next
Monday, November 10. There will
be parking restrictions and
periodic traffic disruptions
associated with this work.
_________________________________________
11/4/2008 - Paving
Notice: Walden St (Sherman to
Richdale)
10/28/2008 - Some
brief updates on some of the
work expected to move forward
during the next 2 weeks:
On the Bridge:
- Gas and water work has been
completed
- NStar Electric is scheduled
to begin their work next week
- Sidewalk work
At the Richdale and Walden intersection:
- Sidewalk construction will
continue for approximately 2
weeks. Backhoes and trucks will
be needed to remove and replace
existing sidewalk and curbing.
Roadway Paving (Richdale to
Sherman):
- Tentatively scheduled for
next Thursday 11/6 and Friday
11/7. This schedule could still
change if rain or cold weather
during the coming week postpones
other paving jobs and the equipment
needed on Walden Street is not
available- both an e-mail and
paper notice will go out once
we have confirmation.
Raised Intersection, Walden
at Raymond:
- To be constructed once paving
is completed
__________
10/22/2008 - Walden
Street (Richdale to Sherman)
Grinding Notice
___________
09/27/2008 - MassHighway
has informed the City that they
expect the bridge to reopen
to traffic in early December.
In order to meet this schedule,
JF White will be working longer
work days (7 am until sundown)
whenever possible. They will
also work some Saturdays; no
work is scheduled for this Saturday
(because of forecasted rain),
but there are tentative plans
to work next Saturday, October
4.
Over the coming weeks, work
will continue on sidewalks on
either side of the bridge, and
on water, gas, and electrical
utilities on the bridge. Final
paving is scheduled for late
October. Final phases of work
to be completed before reopening
the bridge to traffic include
constructing new sidewalks on
the bridge and removing the
temporary pedestrian bridge.
_________________________________________________________
08/14/2008 - Mass
Highway’s contractor,
JF White Contracting, has confirmed
that beam erection is scheduled
for tomorrow night, Friday,
August 15, at the Walden Street
Bridge. Work hours are expected
to be from 10:00 p.m. to 8:00
a.m. Notices were distributed
to immediate abutters this morning.
Should you have any questions
or concerns, please contact
Marc Palmer, Project Engineer,
at 617-491-1078.
______________________________________
08/06/2008 - Walden
Street (Richdale to Sherman)
Construction to Start
________________________________________
05/27/2008- The City
has set up a meeting with representatives
from MassHighway and their contractor
to discuss the status of the
bridge reconstruction for Wednesday,
June 4, 6:30 pm
at the North Cambridge Senior
Center, 2050 Mass Ave.
The City of Cambridge does
not discriminate on the basis
of disability. Please contact
Rebecca Fuentes, rfuentes@cambridgema.gov,
if you require any type of accommodation
in order to be able to participate
in this meeting.
________________
05/01/2008- Massachusetts
Highway Department’s (MHD)
contractor for the Walden Street
Bridge reconstruction project,
J. F. White Construction, recently
submitted a schedule to MHD
projecting a revised project
end date of late March 2009.
This would extend the bridge
closure approximately 6 months
past the originally scheduled
end date.
The revised protracted schedule
is primarily due to bridge pier/abutment
redesign and construction issues.
The new bridge is to be supported
by three abutments: one to the
north, one to the south of the
bridge and one immediately south
of the historic cow path (essentially
in the middle of the bridge).
In drilling the shafts that
provide structural support for
the piers/abutments, the alignment
of the shafts shifted and thus
additional analysis and redesign
was required so as to ensure
that there was no compromise
in the structural support provided
by the piers. The reinforcement
steel pattern was also revised
so as to assure adequate structural
support.
Additionally, as a result of
excavation activities associated
with the construction of the
center pier/abutment, and after
examining the foundation of
the historic cow path adjacent
to the center pier/abutment
it was determined that the pier/abutment
should be relocated away from
the arch (approximately 18 inches)
so as to ensure the continued
stability of the cow path. Furthermore,
it has been determined by MHD
that further interim measures
needed to be taken to stabilize
the arch itself during construction,
such as internal bracing, grouting
the foundation of the cow path,
repointing the bricks within
the arch and modifying excavation
activities so as to balance
forces acting on the arch. At
this time the contractor estimates
that as a result of the delays
associated with the redesign
and the additional construction
activities required, the contract
will extend into the spring
of 2009.
MHD is presently reviewing
the revised schedule proposed
by the contractor and is working
with them to assess means of
expediting some of the work
associated with the construction.
Finally it should be noted
that the revised structural
design will not impact the appearance
of the bridge from street level.
MHD has again committed to continue
to update the City as construction
moves forward. To that end,
the Department of Public Works
will continue to inform residents
with updates and will provide
information on its web page
with project progress.
_______________________________________
3/25/2008- Based on
conversations with MassHighway,
the City has the following update:
- In mid-February, the contractor
re-mobilized on-site, and
has been working on the historic
cow path and other preparatory
activities on the Mass Ave
side.
- The historic cow path was
found to be in fairly fragile
condition, and was moved up
in the construction schedule
in order to stabilize the
arch structure before additional
demolition takes place. The
contractor is currently pointing
the existing brickwork to
strengthen the cow path arch
under heated tarps (visible
from the pedestrian bridge).
- Work on the cow path is
scheduled for completion in
late March. In early April,
removal of the remaining existing
north wall/ abutments will
begin.
- The design and construction
issues related to the new
bridge abutments have been
substantially resolved, and
so abutment work is planned
to proceed this spring.
_________________________________________
12/20/2007- Construction
has been delayed due to the
failure to one of the shafts.
The bridge design is being modified
due the failure. More information
will be posted when it becomes
available.
Previous Construction
Updates:
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