Sigma engineering serves downtown Milwaukee development


WisparkWispark is a full-service real estate development company that focuses on redevelopment projects in urban settings, particularly in the Milwaukee, Racine and Kenosha areas. The Wispark, LLC North 2nd Street site is an approximate one-acre parcel located in downtown Milwaukee. The Sigma Group provided professional engineering services and resources related to the demolition of the multi-story Fortis Insurance building that occupied the project site, as well as the subsequent redevelopment of the site into a surface parking lot.

Sigma’s scope of services included asbestos and hazardous materials inspections and abatement, bidding service and contract administration for both hazardous materials removal and building demolition work, and performing site engineering services associated with the site redevelopment.

Services provided by Sigma include:

Asbestos and Hazardous Material Management

Sigma conducted comprehensive pre-demolition asbestos and hazardous materials inspection and investigation of the Fortis Insurance Building. Inspections were performed in order to comply with all applicable regulations pertaining to the characterization and management of asbestos and other hazardous building materials.

Demolition Management

Sigma prepared both engineering plans and specifications for site asbestos removal and abatement, as well as the removal of other hazardous materials. Sigma prepared the plans for building demolition and site demolition work, handled both bidding and administration of involved contracts, and provided project monitoring and documentation services associated with implementation of the work.

Civil / Site Engineering

Sigma’s team of engineers prepared site design plans for grading, utilities and paving work associated with the redevelopment of the project site into a surface parking lot. The paving and grading plans included the use of pervious pavement as an innovative stormwater management technology in order to obtain stormwater management approval from the City of Milwaukee.

Surveying Services

Sigma conducted supplementary surveying services to Wispark in association with establishing demolition removal limits. Services were also performed to ascertain and record the locations of all subsurface foundation remnants.