Two-way thoroughfares (Abbr.), 3 letters
Two-way thoroughfares at both ends of this puzzle's long answers, 3 letters
10th, 20th and 30th in NYC, 3 letters
10th, 20th, 30th, etc., in N.Y.C., 3 letters
16 of them start with M or N (abbr.), 3 letters
16th and 18th: abbr., 3 letters
1st to 220th, in Manhattan: Abbr., 3 letters
1st, 2nd and 3rd, e.g.: Abbr., 3 letters
1st, 2nd, 3rd, etc.: Abbr., 3 letters
2005 Cadillac model, 3 letters
22 of the 26 letters of the alphabet, in D.C., 3 letters
34th, 42nd, etc.: Abbr., 3 letters
34th, Elm, etc: Abbr., 3 letters
42nd and Elm (Abbr.), 3 letters
42nd and Main: abbr., 3 letters
42nd and Wall in N.Y.C., 3 letters
A and B in D.C., e.g., 3 letters
Abbr. concerning the holy or potholy, 3 letters
Abbrs. on city maps, 3 letters
Andrew and Paul: abbr., 3 letters
Andrew and Pierre: abbr., 3 letters
Ark. and Tenn. for two, 3 letters
Ave. crossers, often, 3 letters
Ave. crossers, perhaps, 3 letters
Avenue crossers: Abbr., 3 letters
Bases for some IRT stop names, 3 letters
Basin and Bourbon (abbr.), 3 letters
Bleecker and Beale (abbr.), 3 letters
Block boundaries: Abbr., 3 letters
Bourbon and Beale: Abbr., 3 letters
Bourbon and Boylston (abbr.), 3 letters
Bourbon and easy (Abbr.), 3 letters
Bourbon and others (abbr.), 3 letters
Bourbon and Sesame: Abbr., 3 letters
Bourbon and Wall: Abbr., 3 letters
Bourbon et al.: Abbr., 3 letters
Canal and Wall in N.Y.C., 3 letters
Canon fodder?: abbr., 3 letters
Canonized folks: Abbr., 3 letters
Canonized ones: Abbr., 3 letters
Cartographer's abbrs., 3 letters
City crossers: abbr., 3 letters
City map lines: abbr., 3 letters
City planning concerns: Abbr., 3 letters
City thoroughfares (Abbr.), 3 letters
Cloud and Paul in Minn., 3 letters
D and C, in D.C., for ex., 3 letters
D.C. has lettered ones, 3 letters
Downing and Bourbon; Abbr., 3 letters
Downing and Fleet: Abbr., 3 letters
Downing and Main (Abbr.), 3 letters
Downing and others (abbr.), 3 letters
Downing and others, briefly, 3 letters
Downing, Bourbon, et al., 3 letters
Downing, Elm, Main et al., 3 letters
E and G, e.g., in D.C., 3 letters
Easy and Elm (Abbr.), 3 letters
Easy and Wall: abbr., 3 letters
Elm and Downing (abbr.), 3 letters
Elm and Main: abbr., 3 letters
Elm and Maple, briefly, 3 letters
Elm and Oak, briefly, 3 letters
Elm and Peachtree: Abbr., 3 letters
Elm and Vine, briefly, 3 letters
Elm, Main, Bourbon et al., 3 letters
Fleet, Wall, etc.: Abbr., 3 letters
Francis and others: abbr., 3 letters
Francis et al.: abbr., 3 letters
Geo. and Jos., e.g., 3 letters
Geo. and Jude, e.g., 3 letters
Geo., Jas./Thos., e.g., 3 letters
Hagiographer's subjects: abbr., 3 letters
Hagiography subjects (abbr.), 3 letters
Hagiologist's specialty: Abbr., 3 letters
Hill and Main (Abbr.), 3 letters
Hill and Sesame (Abbr.), 3 letters
Hollywood and Vine (Abbr.), 3 letters
Holy folk, for short, 3 letters
Holy men like Paul and Peter: Abbr., 3 letters
Holy people for whom holidays are often observed: Abbr., 3 letters
Houston in NYC, et al., 3 letters
Intersection parts: Abbr., 3 letters
John and Paul, e.g., 3 letters
John and Paul, e.g.: Abbr., 3 letters
John and Paul: abbr., 3 letters
John, Joseph, and Jude (abbr.), 3 letters
John, Paul and George (Abbr.), 3 letters
John, Paul and George, but not Ringo (abbr.), 3 letters
Lines in some grids: Abbr., 3 letters
Lines on a city map: Abbr., 3 letters
Lines on a map: Abbr., 3 letters
Lines on an urban map: Abbr., 3 letters
Lines on GPS displays, 3 letters
Lines on some maps: Abbr., 3 letters
MA and PA, for example, 3 letters
MA, ME, MI, and MO, but not MU, 3 letters
Main and Easy (Abbr.), 3 letters
Main and Easy, e.g. (Abbr.), 3 letters
Main and Elm: Abbr., 3 letters
Main and Market: abbr., 3 letters
Main and Oak (Abbr.), 3 letters
Main and Vine (Abbr.), 3 letters
Main and Wall: Abbr., 3 letters
Main, Elm, etc.: Abbr., 3 letters
Main, et al. (abbr.), 3 letters
Main, Hollywood and Vine (Abbr.), 3 letters
Manhattan's 34th and 42nd: Abbr., 3 letters
Manhattan's east/west arteries: Abbr., 3 letters
Many are named for trees: Abbr., 3 letters
Many figs. on stained-glass windows, 3 letters
Map markings: abbr., 3 letters
MapQuest quests?: Abbr., 3 letters
Mark & John (abbr.), 3 letters
Mark and Anthony: Abbr., 3 letters
Mark, Anthony and others: Abbr., 3 letters
Most letters in D.C., 3 letters
Most letters of the alphabet, in D.C., 3 letters
N. Dakota or S. Dakota, for two, 3 letters
N.Y.C.'s 34th and 42nd, 3 letters
N.Y.C.'s 42nd, et al., 3 letters
N.Y.C.'s Hudson and Canal, 3 letters
New Orleans's Bourbon and others: Abbr., 3 letters
New Orleans's Bourbon, et al., 3 letters
Nicholas and others: Abbr., 3 letters
Numbered NYC runners, 3 letters
NYC block separators, 3 letters
NYC's Front and Wall, e.g., 3 letters
NYC's Grand, Canal, and others, 3 letters
NYC's Houston and others, 3 letters
NYC's Prince and King, e.g., 3 letters
Oak and Maple, briefly, 3 letters
Oak, Main, Maple (Abbr.), 3 letters
OK, and others: Abbr., 3 letters
Parade route sections: abbr., 3 letters
Parts of P.O. labels, 3 letters
Parts of some grids: Abbr., 3 letters
Parts of USA: abbr., 3 letters
Pat and Pete, among others, 3 letters
Patrick and Paul: Abbr., 3 letters
Patrick and Peter: Abbr., 3 letters
Paul and John: Abbr., 3 letters
Paul and Louis: abbr., 3 letters
Paul, George and John: abbr., 3 letters
Paul, John and George, but not Ringo: abbr., 3 letters
Peter and Paul (Abbr.), 3 letters
Peter and Paul, e.g., 3 letters
Peter, Patrick and Paul: Abbr., 3 letters
Peter, Patrick, and Francis (abbr.), 3 letters
Peter, Paul and Mary (abbr.), 3 letters
Pothole sites (Abbr.), 3 letters
Probable rte. parts if you click avoid highways on Google Maps, 3 letters
It covers one's flank, 7 letters
Apostle called the Zealot, 7 letters
Apostle known as the Zealot, 7 letters
One of the apostles, 7 letters
___ Island (Georgia vacation spot), 8 letters
Christian martyr who died around 35 AD: 2 words, 9 letters
His feast day is in December, 9 letters
Clears up a mistaken notion, 15 letters
Corrects a factual error, 15 letters