Esty Erickson

ESTY ERICKSON graduated from Rasmussen College in St. Cloud. Esty has been with HDC for 6 years.



Dennis Winkelman
Job Superintendent

DENNIS WINKELMAN graduated from Sauk Rapids High School. He has worked 30 years in the construction industry. Dennis has been with HDC for 14 years.



Duane Winkelman
Job Superintendent

DUANE WINKELMAN graduated from Apollo High School in St. Cloud, MN. He attended a two-year carpentry course at St. Cloud Technical College. He has worked in the construction trade for 43 years. Duane has been with HDC for 22 years.

Mike Engler
Job Superintendent

MIKE ENGLER graduated from Marshall High School. He has worked in the construction industry for 41 years. Mike has been with HDC for 17 years.



Pat Dwyer
Job Superintendent

PAT DWYER graduated from Ortonville High School. He has 18 years of experience in the construction industry. Pat has been with HDC for 19 years.

HDC Team


James Lemke
Vice Chairman of the Board

JAMES LEMKE graduated from St. Cloud Technical College and carries a Minnesota Contractors license. He has worked in the construction industry for 45 years. Jim has been with HDC for 28 years.




Tom Mazacek
CFO / Senior Project Manager

TOM MAZACEK graduated from Foley High School and received a degree from St. Cloud State University. He also did post-secondary work at Purdue University. He has worked in the construction industry for 28 years. Tom has been with HDC for 12 years.


Travis Scott
CEO / Senior Project Manager

TRAVIS SCOTT brings 21 years of diverse construction experience from highway heavy, commercial, residential, and federal construction projects. He has completed complex projects ranging from $5,000-$40MM. He attended Hibbing Community College and Everglades College. Travis has been with HDC for  4 years.



Roger Holtberg
Chairman of the Board

ROGER HOLTBERG has a degree from Moorhead State University. He is a licensed nursing home administrator. He has worked in senior housing construction and commercial market rate apartments for 31 years. Roger has been with HDC for 22 years.


Barb Wolbeck
Administrative Assistant

BARB WOLBECK graduated from Crosby-Ironton High School. Barb has been with HDC for 2 years.



Manny Burkholder
Job Superintendent

MANNY BURKHOLDER graduated from Mt Kinski. He has 50 years if experience in the construction industry. Manny has been with HDC for 1 years