So Boulder Rd Corridor Master Plan Project

The City of Lafayette, in partnership with Boulder County, is conducting a master planning effort for the 120th Street and South Boulder Road corridors. The project area includes 120th Street between Emma Street and Horizon Avenue, and South Boulder Road between Malory Street and 120th Street.

The 120th Street and South Boulder Road corridors have operational deficiencies and experience frequent traffic congestion. Both roadways are important transportation corridors supporting mobility in the City of Lafayette and Boulder County.

Improvements are needed to:
  • Meet current and future traffic demands
  • Improve operational efficiency of the roadways
  • Improve traveler safety through the study area
  • Accommodate multimodal connections
After investigation of existing and future conditions, the following improvements have been identified:
  • South Boulder Road – Malory Street to 120th Street
    • Widening and multimodal improvements
    • Intersection improvements at 120th Street
  • 120th Street – Emma Street to Horizon Avenue
    • Widening and multimodal improvements
    • Intersection improvements at Emma Street
    • New 120th Street bridge over Coal Creek
The proposed improvements include potential right-of-way and access impacts to some properties along these corridors.

Following this first public meeting on April 22, preliminary design of the improvements and a Master Plan Report will be completed, and then presented at a second and final open house in late summer or fall 2014.

Public Meeting/Open House
April 22, 5-7 p.m.

An overview of the Master Plan project, traffic and multimodal operational information, and conceptual design of the proposed improvements will be displayed at a public meeting on

Tuesday, April 22, 2014
5:00 to 7:00pm
Lafayette Public Library
775 W. Baseline Road

No formal presentation is planned. Attendance is encouraged as public input is an important part of shaping the final recommendations.

For those unable to attend on April 22, the meeting exhibits are available below.

View the proposed conceptual designs/info

View the conceptual So Boulder Road MAP (6.5mb)
View the conceptual 120th Street MAP (5.5mb)

Submit your input on the conceptual design