Route 18: Detour on Montana Ave. in Santa Monica 12/6 Route 18 will be on detour on Montana Ave. in Santa Monica on Saturday, December 6, between 6:30 a.m. and approximately 10:30 p.m., due to the Montana Avenue Holiday Walk. To UCLA (eastbound) The following stops will be missed: EB Montana Ave. at 11th St., Euclid St., and 15th St. Please use the following alternate stops: NB Lincoln Ave. at Montana Ave. EB Montana Ave. at 17th St. To Marina del Rey (westbound) The following stops will be missed: WB Montana Ave. at 17th St., 15th St., Euclid St. and 11th St. Please use the following alternate stops: WB Montana Ave. at 20th St. SB Lincoln Blvd. at Montana Ave.