LOCATION
Des Moines, Iowa

PROJECT DESCRIPTION
Initially built in 1906, the Beaux-Arts-style Polk County Courthouse was listed on the National Register of Historic Places in 1979. It is currently undergoing a multi-phase renovation, which began with the exterior and was completed in 2015. The next, much larger phase focuses on interior renovation, which started in 2018.

PROJECT HIGHLIGHTS

• A complete, organized telecommunications system, including the creation of telecommunications spaces and a full optical fiber system, accomplishes faster, more efficient communication and data sharing.
• Electronic access control design monitors perimeter doors and critical doors within the building using card readers, door sensors, and field control panels.
• The electronic video surveillance system includes interior and exterior IP-based security cameras, head-end equipment, and programming.
• The acoustical analysis included acoustical modeling of the spaces in order to properly evaluate reverberation time, speech intelligibility, and sound levels. The resulting recommendations included:
  • Appropriate building materials and acoustical treatments (type, amount, and locations) are required to meet the acoustic performance requirements.
  • Sound reinforcement system design improves speech intelligibility by providing the highest quality system, as well as optimal loudspeaker locations and aiming for sound distribution. Also included are audio conferencing capabilities, digital audio recording, and a white noise system for bench conferences to assist with privacy.
• The video presentation system is designed to include evidence displays, document cameras, and required video input sources.
• Audiovisual system coordination and supporting infrastructure design allow for digital signage, room scheduling, and content delivery systems.

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Photography credit: OPN Architects