LIRR Atlantic Avenue Viaduct Phase IIA - The massive rehabilitation of the 107-year-old Atlantic Avenue Viaduct will restore this much-traveled and critical stretch of railroad infrastructure to a state of good repair. Rehabilitation includes replacing 86 steel spans as well as installing new employee walkways to improve safety. This project is one part of a larger $400 million ARRA transit grant, which created or sustained more than 120 direct jobs in the first quarter of 2010. The ARRA funds will be used to make critical structural replacements along the 1.5 mile elevated structure which carries Long Island Railroad (LIRR) customers between Jamaica and Downtown Brooklyn. With more than 25,000 customers each week, and an additional 16,000 on the weekend, the route is a high-traffic segment along the LIRR.