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Google Maps, local.live.com and Mapquest all have the bit of Conshohoken Ave. between US1 and Belmont Ave. marked as 23 (zoom all the way in). Yahoo maps apears to be using the same map engine as Google. If you look at topozone.com, part of Belmont Ave. is marked as 23 as well. The topozone marking for 23 along Belmont is in purple, indicating a "recent" addition. However, this PennDoT map (LARGE PDF) draws that road section as a "City Street" (grey), not state (red). You'd think the latter would be authoritative ... . I don't quite live close enough to drive down and look at signage on the ground, as it were, maybe there's still a "23 End" sign. --J Clear 00:13, 8 May 2007 (UTC)
They are not reliable enough sources. One of the external links at the bottom links to state-ends.com; it has pictures of the eastern terminus. At this stage, pictures and the PennDOT sources are your best bet. City Streets are not state highways, due to the fact that it is not signed with a quadrant route marker or a PA Route shield. Anything that is marked as a state highway west of US 1 is PA 23. I can confirm this personally because I live about five minutes away from this place. V60干什么？ · VDemolitions · VRoads (路) 00:43, 8 May 2007 (UTC)
Yep, it ends at US 1: source No routes marked on Conshohocken Ave and Belmont Ave. -- —JA10Talk • Contribs 20:34, 6 November 2007 (UTC)