Colwell Shelor Landscape Architecture, West 8 Urban Design + Landscape Architecture, and Weddle Gilmore have won a design competition to create Mesa City Center, a new civic space destined to accelerate urbanization in Mesa, a city of more than 450,000 in the greater, sprawled-out suburban area surrounding Phoenix, Arizona. A major investment in making this part of the country more walkable, the new 19-acre town square will be a “catalyst for the next 100 years of urban growth in downtown Mesa,” argued Colwell Shelor, the lead landscape architects. The new downtown public spaces will be financed with park bonds, approved by voters in 2012. This project, like the new Klyde Warren Park in Dallas and the Newport Beach Civic Center in California, indicates that more heavily car-centric cities are making ambitious investments in high-quality public space, because people everywhere want these amenities and are willing to pay for them.
“Today, the site is a mix of parking lots and municipal buildings. When complete, Mesa City Center will feature a signature public space that will catalyze new development and enliven Mesa’s downtown core,” said Michele Shelor, ASLA, principal, Colwell Shelor. And from design partner West 8’s Jamie Maslyn Larson, ASLA, we hear: “Cities around the country have been shaped around their ‘village green’ or town square. These places are oases in the city. We started thinking, this is what Mesa wants — its own town square, but with a twist, so that it’s a place people from all over the state will revisit again and again.”
The new space is “characterized by generous spaces for flexible uses, inviting landscapes celebrating the Sonoran desert, and ground floor uses with public-oriented programs that draw people into and through Mesa City Center to Main Street, the Arts Center, Convention Center, and residential neighborhoods.”
The new space features a unique copper shade structure with an “evaporative cooling tower,” which will “mitigate the dry, hot climate with added moisture and a consistent, cooling breeze.” According to Colwell Shelor, “similar constructions have been shown to drop air temperatures by fifteen to twenty degrees. The surface will also host a projection screen for performances and movie screenings.”
Part of the structure is set within a pool of water. In the renderings, this undulating form will also provide the frame for swings, making this a mecca for kids.
Sustainability is a focus. Allison Colwell, ASLA, a principal at Colwell Shelor, explained: “A guiding principle of the design is to incorporate sustainable measures into all aspects of the design so that the Mesa City Center will be a model for environmentally sensitive and energy-efficient development. A few of the strategies we will consider are adaptive reuse of existing buildings, an evaporative cooling tower, bio-retention planters, rainwater harvesting, solar power, use of grey water, and permeable paving.”
Furthermore, “the overarching landscape strategy is to use native plants as the backbone of different plant communities for seasonal beauty, diversity, and habitats, and to use stormwater and greywater to support these plant communities.”
City Hall itself may also contribute to the the sustainability of the overall design. The team proposes a 150 kW solar parasol over the roof, creating an inviting rooftop public space with great views.