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Park Hill Storm Phase V Project


Denver Public Works and Flatiron Constructors will be conducting work on the Park Hill Storm Phase V project on Dahlia Street between 48th Avenue and up to Smith Road (before the railroad tracks) from October 2017 to October 2018. This project is the continuation of the Phase IV project completed in 2014, with the goal of reducing localized flooding problems and damage to roadways and private property.

Construction crews will be installing an 84" storm drainage pipe and a 24" sanitary sewer pipe in Dahlia Street. The two pipes will pass underneath two private railroad crossings, a BNSF railroad and Interstate 70. The pipes will vary in location, but will generally be installed between the western side of the street and the center of the street. The crew will need to dig up to 30 feet deep in some areas.

The team began outreach to the community in September 2017 to mitigate the impact to businesses. Traffic control plans are being designed in coordination with affected businesses; any traffic impacts and road closures will be communicated to everyone in advance to allow businesses to plan accordingly.

Construction is expected to last approximately one year. Incidental noise and dust will be generated during construction, but the team will be using standard construction practices to mitigate dust. To maintain the project schedule, construction has been divided into three different areas: See details for each construction area.

Project Status: Construction Complete

Construction began in October 2017 and continued through December 2018 as part of the citywide General Storm Drainage Capital Improvement Program.


Project Schedule

March 2017 – October 2017

  • Utility Relocation Phase – Ongoing

October 2017 – December 2018

  • Storm and Sanitary Construction Phase

December 2018 – February 2019 (weather permitting)

  • Curb, Gutter, Sidewalk and Roadway Phase

Project Area

map of project in northeast Denver, on Dahlia street near interstate 70