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  Dakota County Jail


HMN Architects, Inc.
7400 West 100th Street, #200, Overland Park, KS 66210

General Description

Location: Dakota City, Nebraska
Date Bid: Apr 2005
Construction Period: May 2005 to Dec 2006
Total Square Feet: 34,140 Site: 1.75 acres.
Number of Buildings: One. 
Building Size: Sallyport, 1,000; first floor, 26,560; second floor, 5,900; each additional floor, 680; total, 34,140 square feet.
Building Height: Garage, 18’; first floor, 14’8”; second floor, 9’4”; floor to floor, 9’4”; total, 25’4”. 
Basic Construction Type: New/Precast.
Foundation: Cast-in-place. Exterior Walls: CMU, precast, precast modules. Roof: Membrane. Floors: Concrete. 
Interior Walls: CMU, metal stud drywall, precast.

Construction Team

Associate Architect: Cannon Moss Brygger & Associates, P.C. - 401 Douglas Street, #500, Sioux City, IA 51101
Structural Engineer: Johnston Burkholder Associates LLC - 930 Central Street, Kansas City, MO 64105
Construction Manager: G.A. Johnson Construction, Inc. - 3409 West 47th, #101, Sioux Falls, SD 57106
Electrical & Mechanical Engineer: Associated Consulting Engineering - 340 S. Phillips Avenue, Sioux Falls, SD 57104
Security Electronics: Arnold & O’Sheridan - 4125 N. 124th Street, Brookfield, WI 53005
Electrical & Mechanical Engineer: Liberty Engineering - 7535 Windsor Drive #B-203, Allentown, PA 18195

Dakota County Jail, Page 18

HMN Architects, Inc. provided full architectural services for the new Dakota County Jail in Dakota City, Nebraska.

The project was designed for two construction phases. Phase I consisted of a 34,140 square-foot-building containing 120 housing beds, 12 work release beds and jail administrative offices. The building, constructed primarily of pre-cast concrete, ties-in contextually with the 1930’s era courthouse located just east of the jail. The use of precast concrete cell modules allowed for an accelerated construction schedule and subsequent savings to the owner. 

The jail and courthouse are connected to allow for secure circulation of defendants from the jail to the existing courts located on the second floor of the courthouse. Residential districts, as well as the courthouse square, bound the project site very well. To maintain the original feel of the square and uphold a sensitive outward image; avoiding a cold and oppressive feeling, care was taken throughout the design of the project.

Designed around a blended direct-indirect supervision model, the jail is a ‘three post’ facility consisting of: a centralized control station, located outside the secure perimeter of the building; booking-intake control, and a satellite housing control station. The secure central control can double as an access point for public visitors to the jail, when the office staff is unavailable to perform this function. Booking-intake control provides supervision for the work release areas and intake activities of the jail. The centralized satellite control stations are composed of a raised platform and 6-foot tall curvilinear solid surface face. Located for direct supervision of inmate housing areas the station design discourages inmate incursion, while remaining open to circulation corridors, which encourages communication between the staff and inmate population.

The jail design also includes a negative air pressure medical unit with office space for medical staff and secure storage for medications and supplies. 

Phase II of the project will be a second housing area with another 120 beds and a satellite control center. The addition will lie west of Phase I, separated by the service core and the administrative offices, which are sized to accommodate expansion. 


DIV. 3: Precast Modules: Tindall Corporation. 
DIV. 7: Membrane, Insulation: Versico.
DIV. 9: Carpet: Crossley; Vinyl: Mannington; VCT: Armstrong; Wall Base & Stair Treads: Roppe.

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