New Jersey commuters are facing severe disruptions as NJ Transit begins a month-long service reduction due to construction on the aging Portal Bridge. As part of this cutover project, service to Manhattan has been slashed by half, leading to cancellations of numerous trains and forced reroutes for many riders. Commuters have been advised to work from home if possible and prepare for significant delays during their journeys. NJ Transit apologized for the inconveniences and has introduced a web tool to help riders navigate around these disruptions. The construction project, expected to affect both NJ Transit and Amtrak services, is part of efforts to modernize the critical rail infrastructure linking New Jersey and New York City.