This pair of signs pointing to two bridges can be found mounted on a telephone pole at northbound Junction Boulevard and 46th Avenue. In the mid-20th Century, these signs were installed along secondary roads to point motorists to important connections, and they were even color- and shape-coded. Signs pointing to bridges were triangular or arrowhead-shaped and used a red, white and blue scheme, while signs pointing to tunnels (the Queens-Midtown or Brooklyn-Battery) were circular with a white and black scheme or yellow and black scheme.
Over the past 5 years the Department of Transportation has installed a new set of signs that are rectangular, but have a triangle shape outlined on them, directing traffic to important crossings. Meanwhile the DOT has been removing these older signs for the sin of being nonstandard. I haven’t checked on these for a while, so I hope they’re still there. A pair at Woodside Avenue and 69th Street seem to have vanished of late.