Gold Hard Hat Award (tie)
River Point at Sheridan
Submitted by Adolfson & Peterson Construction
River Point at Sheridan is a 125-acre Brownfield redevelopment, revitalizing land that had previously only been useful as a landfill, mitigating unsafe environmental conditions, and converting it into a thriving retail district and golf course for the city of Sheridan and the southwest Denver area.
The redevelopment site is situated on two historic unlined landfills including the Arapco Landfill and Herbertsons Pay Dump. The first phase of the project required removing a substantial amount of this waste to provide a sound subsurface for constructing roads, utilities and buildings.
Many of the buildings demolished on the site were dilapidated, boarded up or contained asbestos, which had to be abated immediately. Not only did this project improve aesthetic conditions along South Santa Fe Drive, but it also will generate approximately $9 million in new annual sales and tax revenue for the city of Sheridan with an estimated 1,000 long-term jobs.
Aurora-based Adolfson & Peterson completed multiple phases and bid packages, including earthwork and trash removal, asbestos and hazardous materials remediation, reconstructing nine holes of an adjacent golf course, site improvements, and core and shell construction for many of the building tenants.
Project Team:
River Point at Sheridan
Sheridan
$88.9 million
Owner: Miller Weingarten Realty
General Contractor: Adolfson & Peterson Construction
Architect: RTA Architects
Engineers: V3 Cos. of Colorado, Walsh Environmental, HCDA Engineering Inc., Eng 3 Group
Start: Nov. 2006
Finish: Sept. 2008
Gold Hard Hat Award (tie)
The Enhanced Hazardous Waste Landfill – Phase 1
Submitted by ClearWater Construction
The first phase of construction at the U.S. Army CERCLA/Superfund Rocky Mountain Arsenal site in Commerce City included a multi-layered landfill cover system for a 26-acre hazardous waste landfill.
This project utilized typical geosynthetics capping materials, such as a geocomposite gas vent layer, geosynthetic clay liner, HDPE geommebrane, and a non-woven geotextile cushion layer.
The most innovative portion of the project was the utilization of approximately 100,000 tons of recycled crushed concrete from the old Stapleton Airport runways. Following the construction of the new Denver International Airport, the old Stapleton Airport runways were demolished and crushed into a rock-like matrix consisting from stone dust, up to 12-inch diameter cobbles all consisting of crushed concrete. This recycled crushed concrete was utilized over the Landfill Cover System to provide a barrier layer against burrowing animals.
This project was the final stage of encapsulating over 1.2 million cu yds of hazardous waste at the Rocky Mountain Arsenal and helped transform the superfund site into an Urban National Wildlife Refuge. The National Wildlife Refuge will be open to the public and provide educational programs for schools and the general public.
Project Team:
The Enhanced Hazardous
Waste Landfill - Phase 1
Commerce City
$16 million
Owner: Remediation Venture Office of the U.S. Army
General Contractor: Tetra Tech Environmental Corp
Design Team: Envirocon Inc.
Among the Subcontractors: CLI - ClearWater Construction
Start: Sept. 2008
Finish: April 2009
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