Phase 3 Detour: East Main Street on-ramp to I-91 SB and Route 15 SB Closure

East Main Street on ramp to I-91 SB and Route 15 SB – Monday, May 18 and Tuesday, May 19, each night from 9:00 PM to 6:00 AM.

The detour route is as follows, and see the detour map below:

    1. Travel East on East Main Street
    2. Left onto Preston Avenue
    3. Left onto the on-ramp for I-691 WB
    4. Take Exit 1-B (on left) to I-91 SB (towards I-91/Route 15 SB and New Haven)
    5. Take Exit 17 to Route 15 SB
Detour map for East Main Street on-ramp to I-91 SB and Route 15 SB closure
Detour map for East Main Street on-ramp to I-91 SB and Route 15 SB closure
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Phase 2: Update for the Weeks of May 17 & 24, 2026