Directions to Midtown Flats Address: 591 Monon Boulevard Carmel, IN 46032 Cross Streets: 1st Avenue and Monon Boulevard in Carmel From Downtown Carmel: Head south on S Rangeline Blvd from Main Street. Continue on S Rangeline past 4th Street SE. Turn right toward Monon Blvd and then right onto Monon Blvd. From Indy: Take I-70 E from downtown Indy and head north on 465 N. Take Exit 33 for Keystone and head north on Keystone Blvd. Take a left onto E 126th St and then a right on S Rangeline Rd. Turn left toward Monon Blvd and then take a right on Monon Blvd.