Sigma works to build senior living facility

Grafton, Wisconsin

Providence Place is a 40-unit independent senior living facility located in the heart of Grafton, Wisconsin. The project site was constructed as a planned unit development, and includes pedestrian trails, a large park-like green space area, and a regional stormwater management pond. The facility incorporates the use of several sustainable building technologies including energy-saving lighting, geothermal heating / cooling and solar energy.

Services provided by The Sigma Group include:

Pre-Construction Due Diligence

Conducted a Phase 1 Environmental Assessment of the site, and also conducted pre-demolition asbestos inspections and hazardous materials assessments for the structures that were cleared to make-way for the new development.

Owner’s Representative

Assisted Providence Place with master site planning and selection of architectural firm. Prepared the Planned Unit Development (PUD) Re-zoning Application package for Village Plan Commission review and Village Board Approval.

Investigation and Remediation

Performed investigation activities to delineate extent of fly ash and foundry sand materials encountered during excavating and grading activities. Based on investigation work, Sigma developed plans for on-site beneficial reuse of material in an environmentally sound manner consistent with Wisconsin Department of Natural Resources (WDNR) requirements.

Asbestos, Lead-based Paint and Hazardous Materials

In addition to inspecting existing structures for the presence of asbestos, lead paint and other hazardous materials prior to demolition in accordance with WDNR requirements, Sigma assisted with bidding and contract administration activities during asbestos removal, hazardous materials removal and demolition work.


Assisted Providence Place with obtaining Focus on Energy grants associated with the design and installation of the geothermal heating / cooling system and for the utilization of solar energy.

Civil / Site Engineering

Surveyed existing conditions of the site to define topography, utilities, easement locations and property boundaries. Negotiated with WeEnergies for proposed grading and construction work within their easement. Evaluated various cut / fill scenarios to minimize earthworks costs and to address the presence of shallow bedrock. Developed comprehensive stormwater management plan that addressed Village regulations and concerns regarding control of storm water runoff from the development. Prepared erosion control, site grading, utility and paving plans, along with site construction details. Coordinated with Canadian National Railroad, Village of Grafton and State of Wisconsin Office of the Commissioner of Railroads to obtain approvals for design and installation of a pedestrian crossing linking the development with Grafton’s downtown business district. Designed a public water main extension to serve the site and obtained associated WDNR approvals.

Developed a traffic control plan for detouring Highway 60 for watermain installation, and coordinated implementation of the plan with the Village of Grafton Public Works Department and Police Department. Prepared various easement exhibits and associated legal descriptions as necessary for the development. Performed construction staking for the building and site. Completed record drawing as-built of utilities and stormwater management features as required for occupancy.