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.
Work to be performed throughout this project will include rehabilitation of the east and west abutments, as well as major rehabilitation of the east and west piers and reconstruction of the I-90 median.
Work to date in August includes installation of temporary barrier and digging test pits associated with the construction of the new foundation for the Commonwealth Avenue bridge. Additional work includes removal of guardrail and median along with pavement saw-cutting adjacent to the temporary barrier, excavation of the existing asphalt down to the top of the footing of the existing piers as shown above, and preparation for installation of the temporary earth support needed for the shoring towers that will be used to support the bridge deck.
Work in the next few weeks will include installation of earth support on the eastbound side of I-90. The current work prepares the subsurface for the shoring towers and a jacking system to keep the bridge deck in place to allow foundation work to be done without affecting the street above. Expect to see the shoring and jacking system set up in the closed travel lane.
The project-required lane closures causing congestion in the I-90 Allston/Brighton tolls area and at the Interchange 20 on-ramp to I-90 eastbound are the result of traffic management plans that take into account area constraints with the physical, available right-of-way and close proximity to the commuter rail lines. The closures allow the project to be completed safely and on schedule. MassDOT will continue to monitor traffic impacts and make adjustments as necessary that continue to ensure safe travel in the work area.
The project will be ongoing throughout the next twelve months leading to the replacement of the Commonwealth Avenue Bridge deck over I-90 which is scheduled to begin in late 2015.
MBTA: Fitchburg Line Weekend Service Suspension posted on Mar 27
The MBTA has issued a Service Alert: No Weekend Service on the commuter rail Fitchburg Main Line for the period from April 25th, 2015 through November 22nd, 2015. The suspension of weekend service will allow construction of major improvements on the Fitchburg Main Line to …Continue Reading MBTA: Fitchburg Line Weekend Service Suspension
Employers Honored for Excellence in Commuter Options posted on Mar 26
The efforts of more than 170 Massachusetts businesses, colleges, and universities, who promote active, healthy, and sustainable commute options, were celebrated today for helping Massachusetts to reduce traffic congestion, to promote healthy lifestyles, and benefit the environment. The Massachusetts Excellence in Commuter Options (ECO) Awards …Continue Reading Employers Honored for Excellence in Commuter Options
Longfellow Bridge: “Salt and Pepper” Towers Work posted on Mar 26
MassDOT on Saturday, March 28 will begin preparing to dismantle the downstream “salt and pepper” towers as part of the Longfellow Bridge Restoration Project. MassDOT’s contractor, White-Skanska-Consigli JV (WSC), coordinated with the cities of Cambridge and Boston as well as the MBTA to begin dismantling …Continue Reading Longfellow Bridge: “Salt and Pepper” Towers Work