Photos and Updates
August 18, 2011:
Part 2: How Toyota Elephant Passage is Making Denver Zoo a Green Leader
Last week, we covered many of the ways Denver Zoo is striving to be the world's greenest zoo. This week, we cover areas on Toyota Elephant Passage you may not see when the 10-acre exhibit opens next year.
The radiant-heated floor systems (above photo) in the Clayton F. Freiheit Elephant Building and the rhino-tapir building will last the life of the building without requiring maintenance and saving energy, money and time for repairs. A typical heating, ventilation and air conditioning (HVAC) system requires regular maintenance and replacement of parts. Radiant-heated floors also save money because they retain heat at lower elevations of a room longer than HVAC systems. Radiant-heated flooring also will be used in several outdoor spaces, like the gibbon boardwalk and an animal path near habitat A, to provide a safe walking environment for guests and animals during winter months.
The rhino-tapir building is the lone structure on Toyota Elephant Passage to use reflective awnings (right), but the slats on the south side of the project (where the public won't be allowed) are set at a certain angle to block direct summer sunlight from entering the windows and keeping the building cool. In the winter, direct sunlight can enter the windows because the sun is lower in the sky and will help heat the building.
Denver Zoo's sustainable practices reach beyond the zoo. Toyota Elephant Passage construction includes improving the Duck Lake water system in City Park. New water pipes (photo below) were installed within Toyota Elephant Passage to help improve water quality in Duck Lake. The new system will process the water volume in the lake more frequently, thus decreasing the severity of algae blooms, which helped destroy the lake's previous ecosystem.
Here are more sustainable practices inside Toyota Elephant Passage:
• All equipment will go through a commissioning process. Commissioning involves bringing in a third-party expert to verify that everything is operating at maximum efficiency, thus reducing energy demands.
• There is a measurement and verification plan in place to test all equipment after the buildings have been in use to ensure the equipment still operates at maximum efficiency.
• The zoo will engage in a two-year renewable energy contract to provide at least 35 percent of the project's energy demand from wind-generated energy.
• Kiewit Building Group will divert more than 75 percent of the project's waste stream by weight from landfills by recycling or finding alternative uses (below photo) for these materials.
• At least 20 percent of materials used to construct Toyota Elephant Passage will contain recycled content.
• At least 20 percent of construction materials will have been extracted, processed and manufactured within 500 miles of Denver Zoo.
• At least 50 percent of the wood used to construct Toyota Elephant Passage will be FSC (Forest Stewardship Council) certified. This means it comes from sustainable forests. We're also using beetle-kill wood from local mountains.
• We're trying to select low volatile organic compound-emitting materials. VOCs are prevalent in paint and solvents.
• The project is paperless; Kiewit has digitized all documents.
- View more Toyota Elephant Passage Videos
- August 11, 2011: Part 1: How Toyota Elephant Passage is Making the Zoo Greener
- July 21, 2011: Plenty of Progress Behind Construction Fences
- May 19, 2011: Denver Zoo Planners Double-Checking Punch List
- April 7, 2011: More Projects on Toyota Elephant Passage Site Close to Completion
- February 23, 2011: Toyota Elephant Passage Nears Half Way Mark
- January 6: Schoelzel Family Village Begins to Emerge
- November 19, 2010: Bridge to Provide Overhead Passage for Pachyderms
- October 28, 2010: Toyota Elephant Passage construction update
- September 23, 2010: Toyota Elephant Passage Progress in Pictures
- September 2, 2010: Virtual Project Becoming a Virtual Reality
- August 19, 2010: Lots and lots of work under way
- August 5, 2010: The Walls Are Coming Up
- July 15, 2010: Gibbon Islands and Deepest Foundation
- July 6, 2010: The walls are coming up on Toyota Elephant Passage!
- June 23, 2010 - More rock work, excavation and installation of utilities
- May 28, 2010 - Weekly Toyota Elephant Passage Construction Update - Rocks/Trees
- May 20, 2010 - Weekly Toyota Elephant Passage Construction Update - Greenhouse
- April 30, 2010 - Weekly Toyota Elephant Passage Construction Update
- April 2010 - Springtime Update
- December 2009 - North Side Warehouse
- December 2, 2009 - Groundbreaking
- March 2009 - Artifacts
- November 2008 - SITE WORK UNDERWAY!