MEMORANDUM
TO:
FR:
RE:
DA:
Richard A. Davey, Secretary & CEO
Frank DePaola, Highway Division Administrator
Ongoing Work in the MHS Tunnels
November 16, 2012
To follow is a summary of maintenance and construction activities performed during the
week ending November 3 in the Metropolitan Highway System tunnels.
Please feel free to contact me if you need additional information.
Overnight work:
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A contractor continues to demolish the median island between the Eastbound and
Westbound sides of I-90, East of the Prudential Tunnel. The contractor is also
repairing the boat slab nearby and performing demolition work from the other
direction. This involves both day and night work.
A contractor continues to repair and replace the spray-on fireproofing material in
the I-93 Tunnel (both directions). Recent work was focused on the Dewey Square
Tunnel.
A contractor is finishing work in a portion of the Prudential Tunnel. In addition
to ongoing pavement repairs, concrete repairs, ceiling repairs, boat slab repairs
and work on the base slab and joints, the contractor is restoring, repairing and
repainting concrete walls in the area of the parcel formerly designated for the
Columbus Center project.
A contractor is continuing substructure repairs in the Storrow Tunnel Westbound
under Leverett Circle. Recent work includes lighting upgrades and boat wall
repairs.
A contractor is progressing with an inspection of the Ted Williams Tunnel (both
directions).
A contractor is in the process of installing a new design that replaces the trench
drain grate covers throughout the tunnel system. The previous covers were prone
to loosening or breaking, and could create hazards by falling into the trench box.
MassDOT has nearly finished installation of the new drains. This project is
nearing completion.
MassDOT continued with overhead concrete repairs and installed support angles
on precast panels in the Prudential Tunnel Westbound. The support angles will
further strengthen the tunnel ceiling.
MassDOT continued installation of station markers on the CANA Tunnel (both
directions). The station markers help inspectors to identify the precise section of
the tunnel they are inspecting.
MassDOT plumbers and a contractor brought in a video scope to inspect a slowdraining drain line in the CANA Tunnel. The video inspection did not reveal the
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source of the problem. Additional video inspections will occur until the problem
is addressed.
Installation of station markers is also occurring in the Callahan Tunnel. A
contractor will also install the markers in the Sumner Tunnel.
MassDOT replaced five cases of bulbs and 3 ballasts, and replaced a pump in the
mid-tunnel pump room, in the I-90 Westbound Tunnel.
MassDOT repaired parts on three cameras and replaced a cable on a fourth, in the
O’Neill Tunnel Northbound.
MassDOT removed approximately 300 feet of handrails from the tunnel system,
in the area of Ramp L-CS (Leverett Circle to I-93 Southbound).
MassDOT is inspecting (and replacing as necessary) fire extinguishers and safety
equipment in the Callahan Tunnel, in the Sumner Tunnel, in the I-90 Connector
Tunnel and in the Ted Williams Tunnel Westbound. This is part of an annual
inspection of safety equipment.
A contractor is performing ceiling work above the hung ceiling in the Ted
Williams Tunnel (both directions). This work will be ongoing.