COMMUNITY PORTFOLIO
Rock County Jail & Law Enforcement Services
Rock County
SPECIFICATIONS
LOCATION
Janesville, WI
CLIENT
Rock County Wisconsin
ENGINEER/ARCHITECT
JP Cullen
SIZE
240k sq. ft.










Rock County Jail & Law Enforcement Services Project Overview
The Rock County Jail and Law Enforcement Services project includes a comprehensive expansion and renovation of existing public safety facilities to support the consolidation of sheriff’s department operations. The scope includes an addition to the existing sheriff’s department, an expansion of the jail, renovation of the current sheriff’s department space, and demolition of a 100 year old five story building to make room for the new facility.
Westphal and Company supported the project through extensive electrical and low voltage infrastructure work across multiple scopes. Electrical work included modification of the existing 3,000 amp service, installation of a new 1,200 amp service for the jail, generator replacement, and the installation of power distribution, lighting, lighting controls, and fire alarm systems. In parallel, structured cabling and communications infrastructure were installed to support operational, security, and future technology needs.
Low voltage and technology work was coordinated across multiple teams and vendors, with Westphal completing structured cabling and backbone infrastructure while the owner’s specialty vendor installed detention and security systems. This coordinated approach ensured system readiness while maintaining clear scope boundaries across all project partners.
Key Project Highlights
- Addition to the existing sheriff’s department facility
- Expansion of the Rock County jail
- Renovation of the existing sheriff’s department
- Demolition of a 100 year old five story building
- Modification of the existing 3,000A electrical service
- Installation of a new 1,200A electrical service for the jail
- Generator replacement
- Power distribution, lighting, and lighting controls
- Fire alarm system installation
- VDV, access control, and CCTV rough ins
- Cat 6a station cabling and terminations
- Telecommunications room cabinets and racks
- Fiber optic backbone cabling and terminations
- RG 6 and HDMI cabling to TV and display locations
- Coordination with owner’s vendor for cameras, intercoms, card readers, detention door equipment, and duress alarm systems






























