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 Manhattan St

Wall 103 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