Project Overview
BKBM provided structural and civil engineering services for Stonebridge Lofts, a 12-story luxury condominium complex located in the historic Mill District of downtown Minneapolis. The project was designed to offer high-end amenities, stunning city views, and sustainable site performance in an iconic urban setting.
Project Highlights
- High-Rise Luxury Living:
- 12-story condominium building with scenic overlooks of downtown Minneapolis and Gold Medal Park.
- Features three levels of underground parking and a spacious exterior terrace on the second level.
- Complex Structural Coordination:
- Structural system includes post-tensioned concrete slabs, with extensive coordination for numerous mechanical and architectural openings—including fan coils, skylights, and a large (26’ x 50’) recessed pool on the terrace.
- BKBM delivered early permit and bid packages to accelerate construction start, saving valuable schedule time.
- Multiple foundation design options provided flexibility to meet contractor and bidder requirements.
- Integrated Civil Engineering:
- Site grading, access driveway development, and park area integration enhance resident experience and site function.
- New sewer and water services brought from the street to optimize site utilities.
- Innovative Stormwater Management:
- Designed green roof areas with rooftop ponding to control stormwater runoff.
- Included a 60-inch diameter underground infiltration tank for stormwater volume reduction and rate control.
- Creative stormwater management strategy achieved net zero site runoff for a 1-1/4 inch storm event.
Engineering Solutions
BKBM’s structural and civil teams collaborated closely with the architect, developer, and mechanical engineer to deliver a highly coordinated, efficient design. The team’s approach addressed complex post-tensioned floor penetrations, accelerated permitting, multiple foundation options, and sustainable water management.
Results & Impact
Stonebridge Lofts stands as a model for luxury, sustainability, and thoughtful engineering in urban multi-family development. BKBM’s integrated solutions ensured a high-performance, resilient building with premier living spaces and best-in-class site stewardship in the heart of Minneapolis.