The Urban Drainage and Flood Control District (UDFCD), Jefferson County, and City and County of Denver have partnered with Jacobs Engineering Group (Jacobs) and ECI Site Construction Management, Inc. (ECI) to design and construct improvements to Marston Lake North Drainageway between South Garrison Street and Stanford Avenue and Balsam Park.
The proposed improvements are located within Jefferson County and the City and County of Denver. Nearby streets that bound the project are South Garrison Street to the west and Balsam Parkway to the east. Drainage within the project limits flows from west to east.
Work on Garrison Street is now scheduled to begin at the end of August. Garrison will be closed north of Stanford Street to complete work on concrete boxes for the drainageway. See Detour Map (PDF)
Street maintenance work is also underway for milling, paving, sidewalk and curb ramps in the area adjacent to the project site. This work is not part of the drainageway project; please look for notices and observe signage related to this construction.
The project will remove the existing concrete forebays and trickle channels, existing outlet structure and pipes, and the current permanent pool. During construction, the grade in the detention pond will be modified to provide additional stormwater capacity and reduce the risk of stormwater flows spilling from the detention pond and drainageway.
Improvements will also enhance the recreational value of the detention pond:
Construction is anticipated to begin in January 2019 and continue for approximately 8 months. Construction will be phased with work beginning at the downstream (east) end of the drainageway and working upstream.
During construction, portions of the park, roadways, sidewalks, and trails in the area will be closed off at different times. At least one lane of traffic and one sidewalk will remain open on Garrison Street and Stanford Avenue.
City and County of Denver
Steve Choi, Project Manager
Wastewater Capital Projects, Denver Public Works
303 446 3648
Cincere Eades, Project Manager
Parks & Recreation
Urban Drainage & Flood Control District
Morgan Lynch, Project Manager
Scott Dirschl, Construction Manager
Jeron Siegert, Project Manager