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Abbreviations:
JCT = Junction
I = Interchange
M = Multiplex (click below on this abbreviation for a multiplex
page)
NT, ST, ET, WT = Northern, Southern, Eastern, and Western Terminus
(click below on one of these abbreviations for a route terminus page)
NS, SS, ES, WS = Northern, Southern, Eastern, and Western Split
of multiplex
  
Junction list:
- Blair County
- NT
I I-99 Exit 39/US 220
- Begin/End SR 0764
- JCT Business US 220 (Altoona)
- M Business US 220(N-S) (Altoona)/PA 764(N-S)
- JCT Business US 220 (Altoona)
- JCT PA 36
- Begin/End SR 0764
- I US 22
- M US 22(W-E)/PA 764(N-S),
SR 0022
- ST
JCT US 22/Business US 220 (Altoona)
- Blair County
Links and Sources:
  
Junction list:
- McKean County
- ET
JCT PA 646
- Begin/End SR 0770
- JCT US 219
- M US 219(N-S)/PA
770(E-W), SR 0219
- JCT US 219/Truck PA 770 (Marshburg) ET
- Begin/End SR 0770
- WT
JCT PA 59/Truck PA 770 (Marshburg) WT
- McKean County
Links and Sources:
Junction list:
- McKean County
- JCT US 219/PA 770
- M US 219(N-S)/Truck
PA 770(W), SR 0219
- JCT US 219, PA 59
- M PA 59(E-W)/Truck PA 770(W), SR 0059
- JCT PA 59, PA 770
- McKean County
Links and Sources:
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