MEMORANDUM
TO:
FR:
RE:
DA:
Richard A. Davey, Secretary & CEO
Frank DePaola, Highway Division Administrator
Ongoing Work in the MHS Tunnels
October 3, 2014
To follow is a summary of maintenance and construction activities performed last week
in the Metropolitan Highway System Tunnels.
Overnight work:
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Contractors are repairing water infiltration at multiple points within the O’Neill
Tunnel (both directions) and on related ramps. Recent work included slurry wall
repairs and repair and replacement of fireproofing materials.
Water infiltration repair work is also underway in the I-90 Connector Tunnel (both
directions) and the Ted Williams Tunnel Eastbound.
A contractor working on behalf of the Massachusetts Convention Center Authority is
performing ongoing ceiling-related construction in the Prudential Tunnel. The
contractor is also installing new fireproofing materials. The contractor continues to
repair the walls and remove supplemental steel and concrete, which requires periodic
lane closures. The contractor has also removed the sub-ceiling and is making repairs
in that area as well.
A contractor working on behalf of the owner of the Prudential Center continued work
on the ceiling of the Prudential Tunnel Westbound. This is a different section of the
ceiling than what has been noted above.
MassDOT continued the Callahan Tunnel rehabilitation with repairs to the tunnel
wall and installation of the wall panel support system. The tunnel re-opened in
March; rehabilitation work continues with periodic lane closures and occasional full
closures as needed. The contractor is continuing installation of polymer concrete wall
panels.
A contractor performed a routine inspection of portions of the I-93 Southbound
Tunnel and related ramps. A contractor also performed a similar inspection on the
Northbound side. Contractors are also inspecting the Eastbound and Westbound
tunnel sets and related ramps.
A contractor continued repairs to the roadway wearing surface near the entry portal of
the Ted Williams Tunnel Westbound. The contractor is also making similar repairs at
the Eastbound entry portal.
A contractor took additional test borings near the Dalton Street Bridge as part of a
design project for the future replacement of the bridge. The work required lane
closures in the Prudential Tunnel Westbound. The test borings are nearing
completion.
MassDOT workers continued charging and testing standpipes throughout the MHS
Tunnel System. Recent work occurred in the Eastbound Connector Tunnel.
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MassDOT workers replaced the power supply on a Variable Message Sign board and
performed routine maintenance on components of the nearby Overhead Vehicle
Detector System in the I-93 Northbound Tunnel.
The Highway Division granted ceiling access in a portion of the I-93 Northbound
Tunnel so that MBTA bridge inspectors could perform a routine reading of the
movement gauges of the Red Line underpinning beams. The work required a lane
closure.
MassDOT workers cleaned the lenses of 24 traffic cameras in the Ted Williams
Tunnel Eastbound.