ADVERTISEMENT
The Old Water Tower Gets a Plaza to Stand On07-05-11 | News
img
 

The Old Water Tower Gets a Plaza to Stand On

J2 Engineering and Environmental Design, LLC ?EUR? Stephen Kelly, Editor




The view to the northwest of Water Tower Plaza in Gilbert, Ariz. reveals the new outdoor dining area, the refurbished 120-foot tall tower and illuminated water walls. The top of the water tower is lit by ?EUR??,,????'?????<

The objective: Gilbert, Ariz. wanted to develop a three-quarter of an acre parcel of land in the town?EUR??,,????'?????<




The mirror-like granite floating sphere (Kusser Fountain Works, Germany) clearly reflects the runnel above it and the nearby water tower.

The Problem: There was a decade of data and design initiatives for this tract of land, including, count ?EUR??,,????'?????<

Design Challenge: Address the dominating presence of the water tower and relate its stature and scale within a relatively small space against a backdrop of an existing active commercial area that surrounded the plaza, included restaurants, retail shops, a theater and a transit center.




Recycled glass pavers (Wausau Tile, Terra Paving Type 9) under the water tower reflect the shadow pattern cast by the tower?EUR??,,????'?????<

Public Consensus
Gaining consensus on this project required J2 look at innovative techniques that could help blend over 10 years of design and debate over this site. Naturally, this included extensive public involvement and master planning efforts.

A major challenge was gaining consensus from the citizens on a single vision for the plaza. Often, regional cultural icons are deemed disposable when their usefulness as functioning elements are no longer viable. The water tower holds an immense sentimental significance to residents and business owners in Gilbert?EUR??,,????'?????< The team?EUR??,,????'?????<




Prior to restoration this was the view looking east: fenced off land, overhead power lines and dilapidated light posts.

Virtual 3D
The increased use and dependency on computer programs has been a cornerstone of the engineering and design professions since IBM first introduced the PC in the 1980s. Expanding their use beyond the common drafting and number crunching was clearly demonstrated on this project. A first crucial step for the design team was partnering with Arizona State University?EUR??,,????'?????<




An overhead runnel drops water onto the floating sphere. The polished sphere (4?EUR??,,????'?????<

Design Elements
The urban plaza space created by this project was in direct response to integrating the two historic structures and the surrounding and future developments into this multifunctional civic space. The plaza needed to be a unique destination for downtown visitors and residents to walk or ride a bike to, find a place to relax, hold an intimate conversation and enjoy an afternoon lunch or dinner in a beautiful park-like setting. People needed a place to sit and enjoy the cooling and relaxing effects of shade and the sound of water.




For over a decade, design initiatives (five master plans) were put forth to develop the three-quarter of an acre parcel in Gilbert, Arizona?EUR??,,????'?????<


The social aspect of conversing, people watching and quiet contemplation is strongly encouraged on the plaza through the use of permanent seating, seat walls, turf berms, and moveable seating and tables. One of the main driving forces behind the development of the site was diversity of seating to foster social interaction and respite. From an economic vantage, the creation of an open space within the heart of downtown was designed to accommodate larger crowds.




History Revisited

This before image shows the old adobe pump house, Gilbert, Arizona?EUR??,,????'?????<

Water Features
The plaza incorporates four water features:

  1. A circular ground spray water feature at the base of the water tower is reflective of the storage tank immediately above it.
  2. A black granite sphere floats on a cushion of water at one corner of the site across from a future mixed-use development site.
  3. Spanning above the sphere is a steel runnel dropping water on the granite ball. The runnel is reflective of the tower?EUR??,,????'?????<
  4. A water wall with cantilever bench and illuminated blue glass windows.



  5. The circular ground spray water feature (Roman Fountains) under the water tower storage tank has integrated LEDs in each nozzle that change color as the water sprays. The fountain is also programmed for music. Each nozzle is part of an individual ?EUR??,,????'?????<


Scaling the Plaza
Relating the plaza space scale to the immense tower was accomplished through mimicking the structural attributes of the tower through the water features and for such amenities as bike racks, benches and entry monuments. Hardscape was enhanced with pavement patterns that reflect the shadow pattern cast by the tower?EUR??,,????'?????<




The runnel is reflective of the tower?EUR??,,????'?????<

Challenges
The development of this three quarter of an acre site was a complex undertaking, most notably in having to work around and avoid impacts to the water tower footings and the adobe building?EUR??,,????'?????<

This small site was full of interesting and intricate above and belowground features and linked to a web of underground utilities. Rendering these complexities understandable and constructible was one of the major tasks undertaken by the team, starting from consensus on design and extending to the grand opening.




The hydrant-like elbow pipe, a remnant of the old water works, used to have a valve on the end for fire crews. Repurposed, it now spouts Muhlenbergia capillaries ?EUR??,,????'?????<

Sustainability
The sustainability of the site is echoed through the preservation and restoration efforts of the adobe pump house and historic water tower. These efforts and the history of the site are incorporated into interpretative signage located at one of the main entries into the plaza.

The water features continually recycle water through a series of filters so that there is minimal water loss.

The turf areas use a combination of underground drip emitters and water harvest swales that eliminate overspray and runoff of irrigation water. These social, economic and sustainable considerations demonstrate the commitment of Gilbert to the highest level of design and responsiveness to its citizens.

Historic structures can enhance a sense of place and provide a point of civic pride when preserved and celebrated.

These aspects resonate throughout this urban plaza.

The plaza accommodates a sitting public to enjoy the cooling and relaxing effects of shade and the sounds of water.

The plaza lends itself to multiple uses, from theatrical performances and minstrels, to arts and crafts fairs and street performers. This central gathering space is spurring redevelopment throughout the Gilbert Heritage District.

Restaurants and retail shops to the east and south surround the plaza. A recently constructed transit center to the west offers true multimodal influences. A new theater and restaurants to the north have been built. Also, the project provided power, water and sewer extensions for the redevelopment of Liberty Market Restaurant.

This project is the beginning of a series of connected urban plazas, pocket parks, pedestrian corridors and open spaces within the downtown area that will provide a vital link connecting residents, visitors and commuters to emerging mix-used developments.




Two arching water walls (inset) and a larger, longer ?EUR??,,????'?????<

Exceeding Expectations
The greatest compliment to this project and a true demonstration that the owner?EUR??,,????'?????<

Photographers are holding photo shoots for graduations, prom pictures and engagement photos. In short, people are coming to the plaza and really enjoying the refurbished space.

About the Firm
J2 Engineering and Environmental Design, LLC (J2) was the prime consultant for the project and provided all civil engineering, drainage design, landscape architecture and irrigation design. J2 was responsible for managing public involvement, master plan development, town departments and design review board approvals, creation of the construction documents and postdesign construction observations. Among the awards the project received was a 2010 Honor Award from the Arizona ASLA Chapter and a Certificate of Recognition from the International Making Cities Livable.

The Project Team
J2 Engineering & Environmental Design, Phoenix
Land Owner, Key Stakeholder, Client - Town of Gilbert
Prime Consultant: Landscape Architecture, Civil Engineering, Drainage Engineering, and Irrigation Design
Aqua Engineering, Fort Collins, Colo
Water Feature Plumbing & Pumps
Electrical Engineering - Wright Engineering, Chandler, Az.
Merestone Land Survey, Phoenix
Geotechnical Engineering - Ricker, Atkinson, McBee, Morman, and Associates, Tempe
Structural Engineering - JG Engineering, Phoenix
Construction Management - Parsons Brinckerhoff, Tempe
General Contractor - Valley Rain Construction, Tempe
Structural Steel Sub-contractor - Cave?EUR??,,????'?????< Electrical Sub-contractor - Kimbrell Electric, Glendale, Az.
Water Feature Controls - Roman Fountains, Albuquerque, N.M.
Granite Ball Fountain - Kusser Fountain Works, Tampa

img