Ridgedale Library, Minnesota: Structural & Civil Upgrades for Modern Public Spaces

Project Overview

BKBM provided structural, civil, and restoration engineering services for the comprehensive remodel of the existing 66,000-square-foot Minnetonka Library. The project delivered a modernized layout, improved functionality, enhanced structural performance, façade restoration, and sitewide civil upgrades.

Project Highlights

  • Structural Modernization:
    • Designed and positioned a new structural steel-framed mechanical penthouse to minimize required reinforcement of the existing building.
    • Developed fire-rated, operable wall supports and reconfigured the loading dock for improved functionality and safety.
    • Façade restoration enhanced building performance and architectural appeal.
  • Civil and Site Improvements:
    • Reconfigured the parking lot to add 9-foot wide parking stalls and 26-foot wide drive lanes for user safety and efficiency.
    • New pavement section constructed over select granular subgrade with drain tile for long-term performance.
    • New catch basin inlets installed to significantly improve parking lot drainage.
  • Stormwater Management:
    • Comprehensive stormwater management was implemented for the entire site, meeting Minimal Impact Design Standards goals.
    • Constructed an underground stormwater filtration system to treat and rate control runoff before discharge to the adjacent wetland.
    • On-site retention of 1.1 inches of stormwater runoff from all impervious surfaces achieved per watershed requirements.
  • Utility Upgrades:
    • Site water service system was upgraded by replacing aging ductile iron water pipe under the north parking lot and providing a new water service to the building, addressing previous watermain breaks caused by the caustic site soils.

Engineering Solutions

BKBM collaborated closely with the client and project team to integrate structural and civil solutions that enhanced building usability, resiliency, and appearance. Thoughtful design and phasing minimized disruption to library operations and ensured compliance with regulatory, sustainability, and performance goals.

Results & Impact

The Minnetonka Library Remodel delivers a flexible, efficient, and welcoming facility for the community while providing robust underlying infrastructure and site improvements. BKBM’s integrated engineering solutions ensured durability, sustainability, and award-winning project performance.