Portland U.S. Route 1A

in portland, maine s largest city, original routing of 1a has largely been eliminated short section still exists along portland s waterfront. begins @ exit 7 on i-295 freeway (also known franklin street). travels east along franklin street arterial until intersection commercial street , maine state pier. @ point makes 90-degree turn onto commercial street, follow through entire waterfront area passing such landmarks becky s diner , customs service portland office. passes under 4 lane me 77/casco bay bridge roadway, , continues along commercial street (and waterfront) until intersection valley street , veteran s memorial bridge road. 1a follows neither routing instead turns west , north following fore river parkway loops meet i-295 again @ exit 5 interchange, serves congress street (me 22).