<P> A new concept for the show was necessary quickly as funds were already available and the overall schedule was set . The concept for the show as it now exists was conceived by architect Mary Kozlowski who had grown up in Las Vegas and knew and loved Fremont Street . It was a light show on the underside of the canopy--the world's largest and most spectacular . Peter Smith, executive vice-president of Atlandia Design, recognized the beauty and practicality of the concept . Jon Jerde, FSE and the City of Las Vegas embraced the show concept . </P> <P> Kozlowski's concept was to use a combination of four colored light bulbs per "light" which allowed a full spectrum of colors . The Young Electric Sign Company assisted in creating the test panels and in the final installation . After the Fremont Street Experience opened, the light bulbs were checked nightly to ensure that all were functioning properly . To accomplish this massive undertaking, the length of the canopy was divided into panels . Each panel was checked by separately turning on each of the four colored light bulbs . A maintenance worker on a lift would then replace any bulbs that were out . The most expensive bulb cost nearly $15 to replace . </P> <P> On September 7, 1994, a five - block section of Fremont Street was closed to automobile traffic for good, and groundbreaking was held on September 16 . After that, the digging up of the street and the installation of the support poles continued into December . On February 15, 1995, the space frames were brought in and the roof began to take shape . The last piece was installed in July 1995 . </P> <P> The official public preview was held in conjunction with the Nevada Symphony . The light show was opened on December 14, 1995 . The first New Year's party was held on December 31, 1995 . </P>

When did they build the fremont street experience
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