Location: US-377 and SH-39, Seminole Cty Reassurance shield after the 39/56 junction Location: US-377 and SH-1, Ada As we enter Ada, 377/99 will split to head into down, taking SH 1 east with it. Stay straight for 1 west/3E east to SH-3W and SH-19. 377/99 will jump back onto the bypass on the south side … Continue reading Oklahoma State Highway 3E, OK-39/OK-56 to US-377/OK-1/OK-99