Between the 18th Ave and the New Utrecht Ave stations on the Sea Beach line on the Manhattan bound side of the row there is what appears to me was a trackway or vehicle access coming down from grade level. This is a mystery to me. It is easy to see when riding a Coney Island bound train. Can anybody speculate about what this might have been? Thanks.
You might want to look a [http//www.nycsubway.org]; look under BMT Sea Beach line.
I'm not sure,but,It might be an abandoned connection to the LIRR/NY+A Bay Ridge Branch.
18th ave station is built over the Bay Ridge Branch.
You also might want to check with [http//www.trainsarefun.com]
look under Bay Ridge Branch.
Not sure if links work.