Related Clues:

• Numbered hwy.
• Part of an itin.
• I-80, e.g.: Abbr.
• Map rtes.
• Road with a no.
• Map entries: Abbr.
• Blvd. crossers
• Most letters in D.C.
• Numbered rd.
• Ave. crossers
• Peter, Paul and Mary: Abbr.
• I-95, e.g.: Abbr.
• A mail carrier has one: Abbr.
• Abbr. concerning the holy or 'potholy'
• Postal abbr.