Stream Data Centers, Chaska, MN and San Antonio, TX

Stream Data Centers specializes in developing industry-leading data centers for the nation’s largest corporate clients. To meet the growing demand for these critical facilities, Stream identified two markets – Chaska, MN and San Antonio, TX – in which to build two “identical” data centers.

Syska provided a phased design and construction approach, allowing for maximum scalability, flexible infrastructure, and diverse power and fiber paths. Our main goal was meeting Stream’s requirements by developing a design that could easily be tailored to meet performance requirements in two drastically different climates.

Each data center was designed to include three “private” suites, encompassing 10,000 square feet of raised-floor data center space and 5,000 square feet of office space. Each suite would have its own 2N electrical and N+1 mechanical infrastructure, including dual power feeds to all critical equipment, and infrastructure independent from the other suites. Tenants would each have their own dedicated equipment yard, telco rooms, and private entrance with security station and mantraps. At move-in, a critical load of 1.2 MW per suite was available, and with planned expansion to 2.4 MW at full build-out. Both data centers were designed for LEED Silver and Uptime Tier III certifications.

The two roof designs were similar, and each was designed to support a flexible and uniform hanging load allowing future tenants to customize their own data hall space. Each data center was designed to withstand 185 mph winds and uplift, and was built with a minimum 20-year lifespan. For each project, Syska provided MEP, fire protection, structured cabling, audiovisual, and security design services as well as LEED documentation.

Chaska, MN
The Chaska data center is a 75,675-square foot building in the rapidly developing Minneapolis-St. Paul metropolitan area, once a thriving brick manufacturing hub due to its high-quality clay soil. In addition to the challenge of building on crumbling clay, Syska’s design had to accommodate Chaska’s high average annual snowfall of 46” and temperatures ranging from -30° F to 103° F.

We provided indoor pump rooms to protect against the harsh winters, integrated chiller economizers to utilize free cooling, and a surrounding retaining wall to compensate for the poor soil and adjacent protected waterways. This data center benefited from Chaska’s recently upgraded utility infrastructure, including an adjacent new power substation and state-of-the-art fiber infrastructure. Syska recently completed the build-out of the data center’s three private suites.

San Antonio, TX

This 75,840-square foot data center is in San Antonio, one of the fastest growing US cities and home to resource-rich portions of the Eagle Ford Shale. While this sedimentary rock formation benefits the many oil and gas companies located nearby, it proved challenging for construction of Stream’s project. The design accounted for a 40-foot elevation difference across the site and temperatures ranging from 15° F to 110° F.

While this site didn’t require as extensive heating requirements, Syska ensured all exterior equipment, including generators, were specified with larger cooling coils and ventilation to accommodate the summer heat wave.

LEED Status
Designed to achieve LEED Gold

75,000 SF


Stream Data Centers


Mortenson Construction (Chaska), Holder Construction (San Antonio)

Fire Protection