Atlantic Street Bridge Project CTDOT Project Nos. 135-326 (Phase 1) - PowerPoint PPT Presentation

Atlantic Street Bridge Project CTDOT Project Nos. 135-326 (Phase 1) & 135-301 (Phase 2) Reconstruction of Atlantic Street & Metro-North RR Bridge Replacement | City of Stamford www.AtlanticStreetBridge.com

Atlantic Street Bridge Project Presentation to: April 10, 2018

Agenda • Introduction • Phase 1 Construction Progress Update • Phase 2 Construction Information • Schedule Update • Questions and Answers

Connecticut Department of Transportation Phase 1 Project Team CTDOT District 3 Office: Domenic LaRosa, P.E. - District Engineer Matthew Cleary, P.E. - Asst District Engineer James Pelletier Jr., P.E. - Supervising Engineer Paul Ezigbo - Project Engineer Louis Eveno - Chief Inspector

Phase 1 Contract Information • State Project No.: 135-326 • Owner: Connecticut Dept. of Transportation • Inspector: Connecticut Dept. of Transportation • Contractor: Yonkers Contracting Company • Original Contract Value: $ 33,881,217 • Current Contract Value: $36,317,496 • Notice to Proceed: February 8, 2016 • Contract Completion Date: June 30, 2018

Phase 1 Project Elements • Utility Corridor (Pipe Jacking) • Reconfigure I-95 NB Exit 8 Off-Ramp • New Ramp Bridge over Atlantic Street • Contaminated Soil Management • Sanitary Sewer Relocation • Drainage along South State and Canal • Minor Track Level Work (Catenary 370B)

Utility Relocations • Eversource Energy & Frontier Communications - Extensive Coordination - Sequential Operation - No State Financial Participation - Estimated Completion: December 2018

Pre-Construction Conditions

Proposed Construction

Proposed Conditions

Phase 1 Construction Progress Exit 8 Off Ramp Wall 102 South State St

Phase 1 Construction Progress Wall 107 Wall 103 Manhattan St South State St

Upcoming Local Impacts • Drainage Crossings on Atlantic and Canal St (Ongoing) • Paving – South State St, Exit 8 Off Ramp and I-95 NB Right Shoulder (04/16/2018) • Wall 107 Construction on Manhattan St (05/07/2018)

Connecticut Department of Transportation Phase 2 Project Team CTDOT District 3A Office: Domenic LaRosa, P.E. - District Engineer Dean Cerasoli, P.E. - Assistant District Engineer John Antonucci, P.E. - Supervising Engineer Mohammad Masoud - Project Engineer HAKS, Inc. (Construction Engineering & Inspection): Kevin Conroy , P.E. - Resident Engineer

Phase 2 Contract Information • State Project Nos.: 135-301 & 301-163 • Owner: Connecticut Dept. of Transportation • Inspector: HAKS • Contractor: Halmar International • Contract Value: $ 74,846,308 • Notice to Proceed: August 28, 2017 • Contract Completion Date: November 30, 2020

Phase 2 Project Elements • Railroad Bridge Replacement (ABC) • Widening and Lowering of Atlantic Street • Streetscaping and Multimodal Enhancements • Railroad Catenary Replacements • New Track 7 (New Canaan Branch Line) • Northern Passenger Platform Extension

Phase 2 Major Activities 2018 – Installation of Temporary Railroad “Jump Spans” – Off-site Construction of New Bridge Superstructure Components 2019 - Construct New Bridge Abutments & Center Pier (Feb - June) - Roll-In & Installation of New Superstructure (6/28 – 7/8) Remove Jump Spans • Demolish Portions of Existing Bridge • Install New Superstructure Sections • Restore Rail Operations • - Final Roadway Lowering and Reconstruction (7/9 – 9/7) 2020 - Track 7 Construction and Passenger Platform Extension

Traffic Impacts During Phase 2 • Continued Temporary Lane Closures (Atlantic Street, South State Street) • Temporary Detours during Jump Span Installation and Roll-In Period (Atlantic St, Dock St, South State St) • Approx. 6 Month Closure of Atlantic Street to Install Center Pier and Complete Roadway Lowering

Public Outreach During Construction • Project Website www.atlanticstreetbridge.com • Social Media Presence • Mailing List / Email Blasts • News Releases • Public Informational Meetings • Consistent Coordination with City, MNRR & Stakeholders

Current Schedule ACTIVITY DATE START OF PHASE 1 JUNE 2016 BEGIN UTILITY RELOCATIONS SPRING 2017 START OF PHASE 2 FALL 2017 PHASE 1 COMPLETE JUNE 2018 UTILITIES COMPLETE DECEMBER 2018 ATLANTIC STREET CLOSED FEBRUARY 2019 INSTALL NEW BRIDGE JUNE 27 – JULY 8, 2019 REOPEN ATLANTIC STREET SEPTEMBER 2019 PHASE 2 COMPLETE SUMMER 2020

Pre-Construction Conditions

Proposed Conditions

Existing Railroad Bridge

Proposed Railroad Bridge

THANK YOU… FOR YOUR TIME AND ATTENTION QUESTIONS ARE WELCOMED

Additional Considerations • Multimodal Accommodations • Provides for Future Bike Lanes • Beautification • Use of Concrete Form Liner • Incorporation of City Streetscape Standards • Preservation • Salvage of Existing Brownstone • Partial Funding of South End Historic Neighborhood Preservation Plan