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I-90 Comm Ave Bridge Project, September 29, 2014As part of the I-90 Median and Commonwealth Avenue Bridge Rehabilitation Project, effective Wednesday, Oct. 15, 2014, MassDOT will be implementing a midday lane restriction on the Turnpike/I-90 in the westbound direction between the hours of 10 a.m. and 2 p.m. in the area of the Commonwealth Avenue bridge.

These lane restrictions on weekdays in the westbound direction are in addition to the ongoing permanent lane closures through the work zone in this area.

The day-time lane restrictions are required to support ongoing work to reconstruct the foundation of the bridge that carries Commonwealth Avenue in Boston over the Turnpike and Commuter Rail. The $22.3 million effort also involves upgrading the median on the Turnpike to modern safety standards from Commonwealth Avenue, east, to the west portal of the Prudential Tunnel.

The left lanes in both Eastbound and Westbound directions on I-90 from west of the Prudential tunnel to the Commonwealth Avenue Bridge are closed to traffic in order to create work zones for substructure rehabilitation work and to reconstruct the I-90 median. Closure of the right lanes in both directions to complete the substructure work for the Commonwealth Avenue Bridge project will follow the reopening of the left lanes.  To ensure safe merging distance on I-90 Eastbound leading up to the lane closure, one lane of the on-ramp is closed from Interchange 20.

Three lanes of traffic will be maintained in each direction on I-90 Eastbound and Westbound during peak hours. Short-term nighttime and weekend closures of an additional lane on I-90 Eastbound and Westbound will take place nightly.

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