I-93 Bridge Project Closures and Detours: July 22-25

Over the course of the last six weekends, MassDOT has demolished and replaced nine of the fourteen bridges that are a part of the93Fast14 bridge replacement project on I-93. All of the bridge replacements will be complete by the end of August.

This weekend’s work locations involve the bridge on I-93 South over Route 28 South (Fellsway)/Valley Street in Medford and the center span on the bridge on I-93 South over the Mystic River. Work begins on Friday at 8 p.m. and continues through Monday at 5 a.m.

Below is a list of this weekend's work and detours. See the attached PDFs for maps showing the location of the work and detours.

Route I-93 Detour Information

Throughout the course of the weekend, traffic onI-93 will be limited to two lanes in each direction over a 6-mile segment between Exit 28 (Sullivan Square) in Somerville and Exit 36 (Montvale Avenue) in Stoneham. Traffic on I-93 South will be directed through a median crossover near Spot Pond at the Stoneham/Medford line and then travel in counter-flow operation on the northbound barrel of the highway before traveling through a second median crossover near the Medford/Somerville line. I-93 directional traffic will be separated by a 
moveable “zipper lane” barrier. Access to and from many of the ramps on I-93 South in this area will be restricted. 

The following lane and ramp closures are scheduled: 

Route I-93 Northbound

• On Friday, I-93 North will be restricted to two lanes at Exit 29 (Route 28/38 –Somerville/Everett) beginning with a single lane closure at 7:45 p.m. with a second lane closed shortly thereafter to initiate the installation of the zipper lane and median  crossovers for activation by 10 p.m. I-93 North will remain restricted to two travel lanes from Exit 29 to Exit 34 (Route 28 North) until 5 a.m. on Monday.  

• Traffic on I-93 North will utilize the right two travel lanes.  Traffic on I-93 South will travel in the adjacent left lanes, separated by the zipper barrier. The shoulder lane on I-93 North will be restricted to use by emergency vehicles and disabled vehicles.

• All of the entrance and exit ramps on I-93 North between Exit 28 (Sullivan Square/Charlestown) and Exit 34 (Route 28 North/Main Street) will remain open. If warranted due to heavy traffic conditions on I-93 North, the entrance ramp from Routes 28/38 at Exit 29 may be closed. If this occurs, drivers seeking to access I-93 North will be directed to use Route 28 North (Fellsway) and follow posted detour signing to access I-93 North at Exit 33 (Roosevelt Circle).

Route I-93 Southbound 

• On Friday, I-93 South will be restricted to two lanes south of Exit 35 (Winchester Highlands/Melrose) beginning with a single lane closure at 7:45 PM with a second lane closed shortly thereafter to initiate the installation of the zipper lane and median crossovers for activation by 10 p.m. I-93 South will remain restricted to two lanes from Exit 35 to Exit 28 (Sullivan Square) until 5 a.m. on Monday.

• Through traffic on I-93 South will be directed through the median crossover near Spot Pond at the Stoneham/Medford line and then travel in counter-flow operation on the northbound side of the highway, separated from I-93 North traffic by the zipper barrier, before traveling through a second median crossover near the Medford/Somerville line. No shoulder lane will be available for traffic travelling on I-93 South within the 4.5-mile zipper lane.

• Immediately prior to the northern crossover, a local traffic lane will be provided on I-93 South to provide access to Exit 33 (Roosevelt Circle – Route 28/Fellsway) only. There will be no access to Route 28 South (Fellsway), east of I-93. Drivers with local destinations on Route 28 South (Fellsway) via Exit 33; and local destinations via Exit 32 (Route 60/Salem Street - Medford Square/Malden); Exit 31 (Route 16/Mystic Valley Parkway) or Exit 30 (Route 38) should enter the local traffic lane and use Exit 33 and follow posted detour signing. 

• The on ramps to I-93 South from Route 28 (Fellsway West) at Exit 34; Roosevelt Circle – Route 28/Fellsway at Exit 33; and Route 60 (Salem Street) at Exit 32 will be closed.Local traffic can access I-93 South using (Route 16 East (Mystic Valley Parkway) at Exit 31. Traffic entering I-93 South at Exit 31 will travel within a single lane and will merge with I-93 South through traffic exiting the median crossover near the Medford/Stoneham line. I-93 South will be restored to three lanes prior to Exit 28 (Sullivan Square).   

• The High Occupancy Vehicle (HOV) lane on I-93 South that starts north of Exit 28 will be closed throughout the weekend.

Local Road Closures and Detours

• Route 28 South (Fellsway) and Valley Street under I-93 will be closed to through traffic from Friday at 6 p.m. through Monday at 5 a.m. West of I-93, drivers exiting I-93 South via Exit 33; or traveling on Forest Street North or on Route 28 South (Fellsway) seeking access to I-93 South or to Route 28 South (Fellsway) east of I-93 will be directed to travel around the Roosevelt Circle rotary to Route 28 North (Fellsway) and follow posted detour signing. 

• Route 28 (Fellsway) will be used as the primary local detour route for the duration of the weekend. Traffic signals along the corridor have been modified to address the increased traffic demands to the extent possible.

• In the event of a safety concern with traffic congestion at intersections along Route 28 (Fellsway) or at other critical intersections impacted by detour traffic, State and local police details will provide traffic control to keep vehicular traffic moving and to provide safe crossings for bicycles and pedestrians. 

• Wellington Circle (Route 28 (Fellsway) at Route 16 (Mystic Valley Parkway) and the intersection of Route 28 (Fellsway) with Fellsway East will experience traffic congestion on Friday evening and throughout the daytime/early evening hours on Saturday and Sunday.