Sedgwick County

Sedgwick County is tucked away in the farthest Northeast corner of Centennial's region. Bordered on the north and east by the Nebraska border, Sedgwick County and the city of Julesburg offer easy access to both I -76 and I -80 and continues to be an busy intersection for travelers. Rich with history, Julesburg was once the crossing site of the South Platte River for the Bozeman, Oregon and Mormon Trails. Established in 1859 as a trading post by Jules Beni, a French trader, Julesburg was an important stop due to its strategic location at a junction of the Upper California Crossing and on the south banks of the South Platte River. The trail forked at this point, one went north and followed the North Platte Valley on through South Pass and on to California and Oregon. The southern trail followed the South Platte River to the burgeoning settlement of Denver. Julesburg also served as the eastern terminus for The Pony Express division that extended westward to the Sweetwater River in Wyoming.

Results of the 2000 census show Sedgwick County with a total population of 2,747 with 1,487 of these individuals residing in Julesburg. The economy is primarily based on farming, ranching and agricultural industry. Available recreational activities include water sports at Jumbo Reservoir as well as hunting, fishing or wildlife viewing along the South Platte River, a visit to the local Depot Museum or a walking tour of the many historical buildings in town. Other towns in Sedgwick County include Ovid and Sedgwick. It is also interesting to note Sedgwick County has been bestowed the nickname "Gateway to Colorado".

Centennial Mental Health Center's office is located in Julesburg and provides a wide range of services to members of this rural community.

img_julesburg-office.jpg  Office Location:  118 West Third Street  Julesburg, CO 80737
Phone:  (970) 474-3769  Fax:  (970) 474-2099
Office Hours:  Monday - Friday 8am-5pm

Regional Operations Director 
Lindy Barnhill, CAC III
Click here for more about Lindy

Regional Operations Manager 
Chantell Christner

Click here for more about Chantell

Meet the Sedgwick County Staff


Ann Tompkins, MS
Early Childhood Specialist
Serving children 0-8 years old

Areas of Expertise:  Social-emotional development in children, depression, anxiety, trauma, grief and loss and play therapy.

Ann also provides parent and caregiver education, including but not limited to developmental challenges and behaviors.  She facilitates the ADHD clinic and the Dina Dinosaur Group.

  • M.S., Mental Health Counseling, Capella University, 2011
  • Nationally Certified Counselor
  • Play Therapy Certified
bio_connie-swick.jpg Connie Swick 
bio_sarah-walgenbach.jpg Sarah Walgenbach
Mental Health Professional II 
Certified Addictions Counselor (CAC)II
In the Substance Use Disorder Treatment Field since 2009


Populations Served:  Adults, Adolescents, Women's Specialized Services, and families

Treatment expertise includes:  Case Management, Individual and Group Therapy

Issue of expertise includes:  DUI Education and Therapy, Substance Use Disorder Assessments, Cognitive Behavioral Therapy, Women's issues, Relapse Prevention, Women's treatment, Anger Management, Strategies for Self Improvement and Change and Crisis Managment.

I began working for Centennial Mental Health in April 2012.  My desire to work as a substance use disorder clinican stems from working with pregnant substance users and incarcerated individuals.  In August 2012, I accepted the position of Specialized Women's Services Team Lead.  This position assists with improving Centennial's response to substance use disorders by providing resources, services information, and assistance for working with female substance users with dependent children (Specialized Women's Services) and Special Connections, Colorado's Medicaid funded care program for pregnant and post-partum substance users.

I received my associate's degree in Alcohol and Other Drug Abuse (AODA) counseling in 2009 from Moraine Park Technical College in Fond du Lac, Wisconsin.  I am currently working towards my Bachelor's degree in Human Services through the University of Wisconsin Oshkosh with a tenantive completion date of 2014.

For my AODA intership, I worked at Genesis Behavioral Services in West Bend Wisconsin.  I conducted individual and family sessions, co-facilitated family sessions, DUI, adolescent, women's, IOP, job placement, relapse prevention, and after care groups.  I also spent the majority of my intership conducting DUI, Relapse Prevention and substance abuse groups in the Washington County Jail.

Prior to working at Centennial, I was working full-time as a substance abuse counselor at Taycheedah Correctional Facility in Fond du Lac, Wisconsin.  Taycheedah is a maximum security women's prison in northeastern Wisconsin.  I was responsible for doing case management, individual sessions, treatment planning, parenting, treating pregnant substance users, Cognitive Behavioral Therapy, Anger Management, domestic violanece, women's issue, teaching life skills, conducting health and wellness and substance use disorder groups.  I also supervised weekend visits between the women and their children, including assisting in housing searches.  I was also responsible for conducting a substance use disorder group in the secured lockdown unit.  At this time, I also was working part-time at the Beacon House in Fond du Lac, as a relief counselor and overnight clinician.  I was responsible for case managment, family reunification, life skills groups, and consistent contact with referral sources of Department of Human Services and Probation.  I also observed weekend visits between women and their families.  A second part-time job, was at Nexus House through Lutheran Social Services.  The Nexus House was a half-way house for men with substance abuse issues and sex offender status.  Clients were recently released from jail/prison or on alternatives to revocation.  They were typically housed for 90 days.  I assited the men with updating resumes, finding employment and family reunification.  I conducted Cognitive Behavioral Therapy, Substance Use Disorder treatment, Anger Management, Domestic Violance classes and Life Skills management, while also providing individual treatment, case management servcies and transportation.

I moved to Sterling, Colorado in April 2012.  I am originally from Fond Du Lac, Wisconsin.  I have a boxer named Izzie, who is full of personality.  Before leaving Wisconsin, Izzie finished her Master's level obedience training.  We are moving to start therapy classes.  I hope to enroll her while we are here to start therapy animal certification as I would love to use her with client contact.  I enjoy being outdoors, love the mountains and I am continuing my education online. 

Hobbies include but are not limited to:  horsebackriding, hiking, camping, watching the Brewers and Packers play and spending time with my family and friends.

  • Clinical Substance Abuse Counselor, State of Wisconsin - over 7000 hours of practice
  • Associates Degree, Alcohol and Other Drug Abuse Counseling, Moraine Park Technical College, Fond du Lac, Wisconsin
  • Certified Addiction Counselor II, Colorado
 bio_sharon-edler.jpg Sharon Edler
Office Coordinator