Serving clients Ethically, Responsively and Professionally
Founded in 1935, Willett, Hofmann & Associates, Inc. (WHA) is a multi-discipline professional organization licensed to provide civil engineering, structural engineering, architectural design, and land surveying services. WHA provides design and land surveying solutions to municipalities, townships, counties, state agencies, and private enterprises. With a diversified staff of more than 60 full-time employees, it delivers an extensive range of services including structural design, transportation engineering, water and wastewater engineering, civil site design, land surveying, and construction staking, observation, and administration.
Brian K. ConversePresident & General Manager
Corey J. BuckVice President, General Manager, Sterling Office
G. Matthew HansenVice President, Water & Wastewater Department Manager
Thomas W. HouckVice President, Architectural Department Manager
Michael R. LeslieVice President, General Manager, Moline Office
Jeffrey B. RohdeVice President, Survey Department Manager
Geoffrey F. SmithVice President, Transportation Department Manager
Scott A. BrownStructural Department Manager
Douglas C. BrunotRegional Structural Manager, General Manager, Joliet Office
Chad T. ClausonGeneral Manager, DeKalb Office
Marc A. GebhardtEngineer Manager
Dale K. HamiltonGeneral Manager, Freeport/Rockford Offices
Patrick T. HubertSurvey Manager
Chad O. MackeSurvey Manager
Paul E. NewmanArchitect Manager
Jordan K. PrimusGeneral Manager, Cedar Rapids Office
David A. WeberGeneral Manager, Dixon North Branch Office
Rabin BasnetStructural Engineer
Benjamin R. ErnstLand Surveyor
Aaron M. FullTransportation Engineer
John M. GabrielsonArchitect
Gregory B. GerardyTransportation Engineer
Meghana KothaStructural Design Engineer
Adam T. KuenyStructural Engineer
Erik E. LarsonStructural Engineer
Michael P. LongWater & Wastewater Engineer
Daniel B. LoosWater & Wastewater Engineer
Kashif MahmoodTransportation Engineer
Luke G. NelsonTransportation Engineer
Eryn PearlmanArchitect
Jonathan M. TiendaTransportation Engineer
Michael C. WagnerStructural Design Engineer
Blake A. WieserTransportation Engineer
Provides structural engineering services for new construction, rehabilitation, and restoration of highway and railroad bridges, building structural systems, existing structure evaluation reports, load rating analyses, and construction engineering.
Delivers engineering services for the design, construction, and maintenance of municipal streets, major highways, recreational paths, traffic signals, street lighting, intersection design studies, and storm sewer and water management facilities.
Provides water and wastewater engineering solutions designed to address drinking water and water quality standards, making the health and safety of community residents and natural resources a top priority.
Delivers civil site design services for private and public residential, commercial, industrial, and governmental developments, encompassing stormwater management, site grading, parking lots, and utility distribution.
Offers comprehensive building design, remodeling, and code-related coordination services, collaborating closely with engineering teams to deliver functional and aesthetically pleasing environments.
Provides professional surveying services, including ALTA/ACSM surveys, boundary and property surveys, topographic and route surveys, and construction staking. Uniquely equipped to perform bathymetric surveys using echo-sounder technology.
Land Development · Commercial · Residential · Industrial · Education · Sports & Recreation · Parks & Open Space · Government · Utilities · Water Supply · Wastewater · Stormwater & Flood Control · Water Resources · Transportation · Highways & Roads · Bridges · Rail · Infrastructure · Parking
Bureau County, IL · Bridges · Client: Bureau County
Reconstruction of a timber covered bridge in Bureau County, Illinois, which received multiple recognitions including the Wood Design Engineering Award, SEAOI Juror's Favorite Award, and the ACEC Special Achievement Award.
Rockford, IL · Bridges · Client: City of Rockford
Historic restoration and preservation project converting a rail bridge to a recreational trail over the Rock River, earning the APWA Illinois Project of the Year Award and an ACEC Engineering Excellence Merit Award.
Joliet, IL · Bridges · Client: City of Joliet
Reconstruction of the Caton Farm Road Bridge over the DuPage River, recognized as the APWA Southwest Branch Project of the Year in the Transportation category.
Dixon, IL · Water Supply · Client: City of Dixon
Phase I and Phase II radium removal and water treatment improvements for municipal wells, earning Engineering Excellence Merit Awards from the American Council of Engineering Companies.