Weekend train service will resume along the MBTA’s Red Line north of Harvard Square this Saturday after a four-month repair project has wrapped up.
The $80 million repair project finished on budget and on time last weekend, MBTA spokesman Joe Pesaturo said Wednesday.
The project began in November and shuttle buses had to be substituted for Red Line service on most weekends at the Porter Square, Davis Square and Alewife T stops while the work was underway.
The project tackled repairs needed to prevent derailments along a specialized track in the tunnel between the Harvard and Alewife stops. (See the photos underground here.)
The portion of the Red Line track opened in 1985, and uses concrete slabs resting on absorbent rubber disks to cushion noise and vibration for above-ground neighbors. Leaks along the tunnel had caused some corrosion along the track that posed a risk of rail movement and train derailment. Leaks were also sealed as part of the project.