Signs West Big Air strikes again. The call came in for a urgent special site survey on an existing billboard sign advertising George Wallace just off the Las Vegas Strip. ” The client called, dispatch was alerted and within 1 hour a 190 foot bucket boom was on site ” said Tawnya Rosenthal, CSR Signs West. For those unfamiliar with equipment, this boom will reach 20 stories in under 5 minutes flat. It’s the only 190 foot bucket boom were aware of in Southern Nevada.