No, California State Route 1 is the Pacific Coast Highway. However, some parts of CA 1 overlap with US 101 so parts of US 101 are the Pacific Coast Highway, but it's mostly CA 1.
290 miles taking HIGHWAY 1.
Olema
About 6 hours and 41 minutes, in good traffic.
17 Mile Drive in Monterey CA, Pacific Coast Highway or Hwy 1 CA
260 kilometres taking HIGHWAY 2 SOUTH to HIGHWAY 1 SOUTH, then HIGHWAY 1 SOUTH to Bridgetown.
About 42 miles taking HIGHWAY 1 - NORTH.
Tennessee Route 1 is the longest highway which is 866km long.
145 miles taking HIGHWAY 1 - SOUTH.
Take U.S. 101 NORTH to SR-128 WEST to FT. BRAGG and MENDOCINO.Turn left off the exit ramp onto SR-128 WEST. Follow SR-128 WEST to HIGHWAY 1 (Pacific Coast Hwy). Go straight onto HIGHWAY 1 NORTH.Take HIGHWAY 1 NORTH to Mendocino.
173 miles following HIGHWAY 1 - NORTH (via the GOLDEN GATE BRIDGE to get out of San Francisco).
Interstate 5 - Golden State Freeway Interstate 10 - San Bernardino Freeway Interstate 15 - Veterans Memorial Highway Interstate 40 - Needles Freeway Interstate 80 - Dwight D. Eisenhower Highway/Lincoln Highway CA 1 - Pacific Coast Highway US 50 - Loneliest Road In America/Lincoln Highway US 101 - Ventura Freeway