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 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