CP243 Interlocking Project WALK BRIDGE PROGRAM | 2018

The CP243 Interlocking Project constructs a new four-track interlocking, Construction Start Date which is a powered switch and signal system that allows trains to move from October 2017 one track to another. The new interlocking is approximately 3,200 feet long, Construction Duration located approximately 1.5 miles east of the Walk Bridge on the New Haven 3.5 Years Line (NHL) between East Norwalk and Westport. Estimated Project Cost The project includes: $252 Million • Six new switches • Track replacement and realignment • New catenary structures What Does CP243 Mean? • Overhead catenary system modifications ‘CP’ means control point • Communications and signal system upgrades ‘2’ refers to the New Haven Commuter Line • Drainage improvements ‘43’ is the nearest mile post on the rail line, marked from Grand Central Terminal

A railroad switch is a set of tracks that create a junction, that when moved allows for trains to change from one track to another. Map Legend Track Realignment Catenary and Signal New Tracks, Track Base and Catenary Submarine cables and tie-ins

Noise and Vibrations The Walk Bridge Program understands that noise and vibrations which will occur as part of the CP243 Interlocking Project and may be of concern to the Norwalk community. The project will maximize daytime work to the extent possible. Night work is required because most track outages are available at night. To best minimize noise and vibrations, a construction coordination plan is being developed that will identify ‘sensitive receptors,’ establish baseline noise and vibration levels, implement monitoring and mitigation techniques. Contact Us The plan is a living document which For more information on the will be developed in coordination with Walk Bridge Program, Please stakeholders. As the project progresses, visit: www.walkbridgect.com unforseen nuisance noise will be evaluated Submit a comment through and mitigated to the extent possible. the website at: www.walkbridgect.com/contact Potential Mitigation Measures • Maximize daytime work Email: [email protected] • Ongoing noise monitoring Follow us on Social Media • Low impact equipment facebook.com/WalkBridgeCT • Suppression of equipment noise • Limit equipment idling time @WalkBridgeCT