South Boulder Road Multimodal Improvement Project

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Week of Sept. 18 - 24

CONSTRUCTION AND TRAFFIC IMPACTS

Work on the South Boulder Road Multimodal Improvements Project will start as soon as Monday, Sept. 19 on the eastern part of the corridor!


120th Street

Starting Wednesday, Sept. 21, 120th Street near the South Boulder Road intersection will shift to a single-lane traffic configuration for a few months, while crews work on the new storm sewer. Motorists will follow temporary traffic signals directing one direction of traffic through the area at a time. Expect traffic delays and slower speeds.

South Boulder Road

Starting Thursday, Sept. 22, for approximately one week, there will be lane closures from Avalon Avenue to 120th Street each day from 9am to 3:30pm. Flaggers will direct single-lane traffic through this area while construction crews remove concrete and asphalt.


PROJECT STATUS UPDATE

The City of Lafayette is committed to enhancing safety and multimodal travel for all users along South Boulder Road and 120th Street. Since the project began in early 2021, crews have encountered unexpected utility and storm sewer design conflicts.

The original design of the storm sewer laterals avoided conflict with the existing waterline. However, the number of storm sewer and waterline crossings has the potential to jeopardize the useful life of the 50-year-old waterline. To mitigate this issue, the waterline in South Boulder Road will be replaced as part of the project, which will eliminate potential maintenance problems with the waterline, pavement and system as a whole. The waterline design is currently in process, with completion and approval scheduled for later this year. Additionally, several third-party utility lines need to be relocated to accommodate the new project features. These were not part of the original project scope, and until these issues were exposed, their condition was unknown. Coordination with third-party utility companies is ongoing and expected to be finalized in the coming months.

While working through these issues, the construction schedule has been impacted, but this added scope will improve the integrity and longevity of the infrastructure for years to come.

The City would like to thank you, the Lafayette community. We want to provide the community with a better, more efficient South Boulder Road, and to do that, and to do it right, we needed to take a step back and evaluate all possible outcomes. And designing improvements for a brand-new water line allowed us to do just that.

A specific project completion date is unknown at this time. We understand the frustration that comes with construction and travel impacts, and we appreciate your continued patience and flexibility as we work to improve travel for all users along South Boulder Road and 120th Street.



New traffic configuration on westbound South Boulder Road
On Wednesday, May 18, the temporary westbound traffic configuration on South Boulder Road at Saratoga and Merlin drives changed. Westbound South Boulder Road now has one through travel lane and one left turn only travel lane. Please prepare for delays when traveling in the area.


Construction Activity Information - LaMont Does Park
On Monday, Feb. 7, the LaMont Does Park parking lot along South Boulder Road closed and will remain closed for several months. The restrooms are closed during construction. Temporary restrooms are available in the Saratoga Drive parking lot, which will remain open.
See the map below for access to the baseball fields during this closure.


As construction continues and crews work to bring improvements to the corridor, please obey all construction signage and barriers. For your safety, use signalized or signed crosswalks to cross South Boulder Road and watch for flaggers. Do not cross through or enter the active construction work zone at any time.

South Boulder Road is in a two-way/head-to-head configuration on the north side of the road. Eastbound and westbound traffic will continue to use this configuration while crews install the storm sewer pipe. Motorists can expect minor delays due to buses stopping to pick up and drop off passengers.


Additional Construction Information

  • RTD bus riders who use the stop on South Boulder Road at Robin Hood Street can catch the bus at the next stop on Sir Galahad at South Boulder Road. Please be aware of all traffic and stay on designated paths.

  • The sidewalk on the south side of South Boulder Road, from Saratoga Drive to 120th Street, is closed. Pedestrians and cyclists should follow sidewalk detour signage and use the sidewalk on the north side of South Boulder Road in this area.


Please use caution in the work zone and follow construction signage. Construction schedules are weather-dependent and subject to change.

Please follow this page for specific construction updates and traffic impacts. The project team will also send email updates and post on Facebook and Twitter.


Project Overview

The City of Lafayette’s South Boulder Road Multimodal Improvements project will enhance safety and multimodal travel for all users along this corridor. This project includes improvements to South Boulder Road, between the Saratoga/Merlin Drive intersection and 120th Street, with minor work on City Center Circle and on 120th Street, between approximately Eastwind Drive and Coal Creek.


Project work includes:

  • Improving South Boulder Road from the Saratoga/Merlin Drive intersection to 120th Street to accommodate a center turn lane, bike lanes, and a new 6-foot-wide sidewalk along South Boulder Road.

  • Constructing a new multi-use path (10-foot-wide sidewalk) along the south side of South Boulder Road from the Saratoga/Merlin Drive intersection to 120th Street to improve multimodal connectivity to Alicia Sanchez Elementary School.
    1. Intermittent sidewalk improvements along City Center Circle from South Boulder Road to the RTD Park-n-Ride.

  • Reconstructing the LaMont Does Park parking lot.

  • Burying overhead power lines along South Boulder Road.

  • Constructing a new signalized intersection at South Boulder Road and 120th Street, and widening 120th Street at this intersection.

  • Improving drainage along South Boulder Road and 120th Street.

Funding:

This is a City of Lafayette project, funded by a Colorado Department of Transportation grant, Boulder County’s countywide transportation sales tax and City of Lafayette road funds.



Connect with the Project team:

Week of Sept. 18 - 24

CONSTRUCTION AND TRAFFIC IMPACTS

Work on the South Boulder Road Multimodal Improvements Project will start as soon as Monday, Sept. 19 on the eastern part of the corridor!


120th Street

Starting Wednesday, Sept. 21, 120th Street near the South Boulder Road intersection will shift to a single-lane traffic configuration for a few months, while crews work on the new storm sewer. Motorists will follow temporary traffic signals directing one direction of traffic through the area at a time. Expect traffic delays and slower speeds.

South Boulder Road

Starting Thursday, Sept. 22, for approximately one week, there will be lane closures from Avalon Avenue to 120th Street each day from 9am to 3:30pm. Flaggers will direct single-lane traffic through this area while construction crews remove concrete and asphalt.


PROJECT STATUS UPDATE

The City of Lafayette is committed to enhancing safety and multimodal travel for all users along South Boulder Road and 120th Street. Since the project began in early 2021, crews have encountered unexpected utility and storm sewer design conflicts.

The original design of the storm sewer laterals avoided conflict with the existing waterline. However, the number of storm sewer and waterline crossings has the potential to jeopardize the useful life of the 50-year-old waterline. To mitigate this issue, the waterline in South Boulder Road will be replaced as part of the project, which will eliminate potential maintenance problems with the waterline, pavement and system as a whole. The waterline design is currently in process, with completion and approval scheduled for later this year. Additionally, several third-party utility lines need to be relocated to accommodate the new project features. These were not part of the original project scope, and until these issues were exposed, their condition was unknown. Coordination with third-party utility companies is ongoing and expected to be finalized in the coming months.

While working through these issues, the construction schedule has been impacted, but this added scope will improve the integrity and longevity of the infrastructure for years to come.

The City would like to thank you, the Lafayette community. We want to provide the community with a better, more efficient South Boulder Road, and to do that, and to do it right, we needed to take a step back and evaluate all possible outcomes. And designing improvements for a brand-new water line allowed us to do just that.

A specific project completion date is unknown at this time. We understand the frustration that comes with construction and travel impacts, and we appreciate your continued patience and flexibility as we work to improve travel for all users along South Boulder Road and 120th Street.



New traffic configuration on westbound South Boulder Road
On Wednesday, May 18, the temporary westbound traffic configuration on South Boulder Road at Saratoga and Merlin drives changed. Westbound South Boulder Road now has one through travel lane and one left turn only travel lane. Please prepare for delays when traveling in the area.


Construction Activity Information - LaMont Does Park
On Monday, Feb. 7, the LaMont Does Park parking lot along South Boulder Road closed and will remain closed for several months. The restrooms are closed during construction. Temporary restrooms are available in the Saratoga Drive parking lot, which will remain open.
See the map below for access to the baseball fields during this closure.


As construction continues and crews work to bring improvements to the corridor, please obey all construction signage and barriers. For your safety, use signalized or signed crosswalks to cross South Boulder Road and watch for flaggers. Do not cross through or enter the active construction work zone at any time.

South Boulder Road is in a two-way/head-to-head configuration on the north side of the road. Eastbound and westbound traffic will continue to use this configuration while crews install the storm sewer pipe. Motorists can expect minor delays due to buses stopping to pick up and drop off passengers.


Additional Construction Information

  • RTD bus riders who use the stop on South Boulder Road at Robin Hood Street can catch the bus at the next stop on Sir Galahad at South Boulder Road. Please be aware of all traffic and stay on designated paths.

  • The sidewalk on the south side of South Boulder Road, from Saratoga Drive to 120th Street, is closed. Pedestrians and cyclists should follow sidewalk detour signage and use the sidewalk on the north side of South Boulder Road in this area.


Please use caution in the work zone and follow construction signage. Construction schedules are weather-dependent and subject to change.

Please follow this page for specific construction updates and traffic impacts. The project team will also send email updates and post on Facebook and Twitter.


Project Overview

The City of Lafayette’s South Boulder Road Multimodal Improvements project will enhance safety and multimodal travel for all users along this corridor. This project includes improvements to South Boulder Road, between the Saratoga/Merlin Drive intersection and 120th Street, with minor work on City Center Circle and on 120th Street, between approximately Eastwind Drive and Coal Creek.


Project work includes:

  • Improving South Boulder Road from the Saratoga/Merlin Drive intersection to 120th Street to accommodate a center turn lane, bike lanes, and a new 6-foot-wide sidewalk along South Boulder Road.

  • Constructing a new multi-use path (10-foot-wide sidewalk) along the south side of South Boulder Road from the Saratoga/Merlin Drive intersection to 120th Street to improve multimodal connectivity to Alicia Sanchez Elementary School.
    1. Intermittent sidewalk improvements along City Center Circle from South Boulder Road to the RTD Park-n-Ride.

  • Reconstructing the LaMont Does Park parking lot.

  • Burying overhead power lines along South Boulder Road.

  • Constructing a new signalized intersection at South Boulder Road and 120th Street, and widening 120th Street at this intersection.

  • Improving drainage along South Boulder Road and 120th Street.

Funding:

This is a City of Lafayette project, funded by a Colorado Department of Transportation grant, Boulder County’s countywide transportation sales tax and City of Lafayette road funds.



Connect with the Project team:

Page last updated: 20 Sep 2022, 04:10 PM