Traffic/Road Closures

The City of Longmont Transportation System Management (TSM) develops and prioritizes safety and capacity projects to improve the transportation system. When projects take place downtown, the Longmont Downtown Development Authority keeps visitors and downtown businesses and residents informed of traffic and road closure conditions.

Current Traffic updates and Road Closures from City of Longmont.

Downtown Road Closures for 2018 LDDA Events

Downtown Concerts
Dates: Fridays, June 1, 8, 15, 22, and 29
Estimated closure time: 3 - 10 p.m. (event runs 6 - 9 p.m.)

4th Ave. from Main St. to Emery St./Kimbark St. north and south of 4th Ave. 

Other 2018 Events

Dates: Saturdays, May 19, September 15
Estimated closure time: 3 - 9 p.m. (event runs 4 - 8 p.m.)
Main St. - 3rd to 9th Ave.
4th, 5th & Longs Peak Ave. - Coffman to Kimbark St. 

Longmont Pride
Saturday, June 23
Estimated closure time: 3 - 9 p.m. (event runs 4 – 8 p.m.)
4th Ave. - Main St. and Kimbark St.

Boulder County Parade and Chuckwagon Breakfast
Dates: Saturday, August 4
Breakfast: 8 a.m./ Parade: 10 a.m.
Breakfast: 4th Ave. - Kimbark St. and Emery St.
Parade: Main St. & Coffman St. - 4th Ave. to Longs Peak Ave.

Jazz Festival
Date: July 21
Estimated closure time: TBD

Halloween Parade and Trick or Treat Street
Saturday, October 27
Estimated closure time: 8:30 - 11 a.m. (parade starts at 9 a.m.)
Main St. - 3rd Ave. to Longs Peak Ave.

Veterans Day Parade Tuesday
Either Saturday before Veteran's Day or Nov. 11, 11 a.m.
Estimated closure time: 10:30 a.m. - 12 p.m.
Main St. & Coffman St. - 3rd Ave. to Longs Peak Ave.

Longmont Lights Holiday Parade
Dates: Saturday, December 8
Estimated closure time: 4 - 6:30 p.m. (parade starts at 5 p.m.)
Main St. & Coffman St. - 3rd Ave. to Longs Peak Ave.