This is from VA 337 westbound, Hampton Blvd, approaching the Midtown Tunnel. VA 337 ALT is implied to follow US 58 west into the tunnel but is not posted until the VA 141 jct in Portsmouth.   Photo by Mapmikey/Adam Froehlig, taken April 7, 2006.

This is VA 337 ALT ending at US 460 ALT (banner missing) and VA 337 near Alexanders Corner.   Photo by Mapmikey, taken March 22, 2014.

This is US 58/US 460 ALT east at Alexanders Corner. 337 ALT postings start here despite the route not beginning until shortly ahead.   Photo by Mapmikey, taken March 22, 2014.