Henry Doorly Zoo’s Lied Jungle officially opened April 4, 1992, providing an opportunity for millions of people to experience the sights, sounds and smells of a tropical rainforest.
That was the intent of Dr. Lee Simmons, then Henry Doorly Zoo director, and Lied Jungle designer.
“Not many people will ever have the opportunity to visit a rainforest in their lifetime, so we brought the rainforest to them,” said Dr. Simmons in a spring 1992 Ideas magazine article. OPPD published the magazine from 1946 to 2012 to share energy-management ideas and innovations with its commercial and industrial customers.
The jungle instantly became a prized jewel of the metro Omaha area, attracting millions of visitors and paving the way for other features at the zoo. Today, Henry Doorly consistently ranks among the top zoos in the world.
Here’s more from the 1992 article, including ways the zoo ensured energy efficiency and comfort to jungle inhabitants and visitors alike.
Lied Jungle: a state-of-the-art showcase for world’s rainforests
Thundering waterfalls, rocky caves, lush vegetation, endangered animals and tropical plants await visitors to the Lied Jungle, the world’s largest indoor tropical rainforest.
The Lied Jungle is an eight-story building that covers one and one-half acres and has 60,000-square feet of viewing space
Inside are the sights and sounds representative of jungles in South America, Asia and Africa. Over 125 species of endangered animals and about 2,000 species of exotic plants and trees make their home in the jungle.
“The main function of the jungle, named after Ernst F. Lied, a past Omaha businessman and zoo enthusiast, is to educate zoo visitors about the importance of preserving the world’s rainforests, which are being destroyed at an alarming rate, Dr. Simmons said. “More than half of the world’s animal and plant species can only exist in the delicately balanced ecosystems of tropical rainforests.”
Fooling the eye
“We wanted to make the re-creation as true to life as possible, so a lot of attention to detail was emphasized during construction,” Dr. Simmons said. “Man-made trees and rocks, together with the real things, will help our visitors feel like they are actually in a jungle.”
Two 80-foot-tall and twelve 60-foot-tall support columns look like massive trees. They were created using a mixture of concrete and fiber that was hand-carved and painted.
Specially crafted concrete rock-like slabs create towering cliffs and dark caves, and six-inch-round manmade vines hang between trees and walkways.
Managing a jungle environment
The realistic setting is made possible by a state-of-the-art energy- management computer system. This system, in conjunction with electronic motor speed control and supervision, helps preserve the jungle’s atmosphere by controlling the air-handling systems to maintain a desirable temperature at 75 degrees, with 75 percent humidity year-round. A misting system built into the manmade trees produces a fog that hangs in the treetops and over the water moats.
To minimize the corrosive effects of the humid environment, weatherproof and non-metallic lighting fixtures are used throughout the entire facility. Also, weatherproof switches, outlets and ground-fault protection devices were installed to ensure operational safety.
Shedding new light
Because of the variety of animals that live in the Lied Jungle, special lighting was incorporated into the design.
Engineers at Omaha-based Alvine and Associates utilized unusual lighting techniques in all areas of the jungle. They include: time-clock-controlled lighting used to reverse the day/night cycles of nocturnal animals; display lighting that was concealed within walls, rocks and under walkways; special lighting for breeding and production of butterflies and various insects; and heavy-duty directional and physically protected cage lighting.
Natural light filters in through a fiberglass ceiling that is 75 percent translucent. How/Nelson Associates of Omaha served as the architect for the $15 million project. The contractor was Peter Kiewit Sons Inc.
To ensure energy efficiency for the entire zoo, OPPD contracted an outside company to do an energy audit on all the zoo’s facilities. The audit reviewed the buildings; the heating, ventilation and air conditioning systems; and the lighting systems. With the audit data, the zoo set out to save additional energy and money.
“Jungles are an important part of everyone’s lives,” Dr. Simmons said. “Many types of food and spices grow in the jungles, and jungle plants provide medicines. This exhibit will help people understand how extremely important these jungles are. Visitors will not be disappointed.”