But there was this firefighting scene of a Deadwood Trolley that caught fire on I-90 Wednesday morning of this week. The city of Deadwood explained that the trolley was traveling to Rapid City for repairs. Anyway, the trolley had just pulled onto the Interstate at Exit 30 when it caught fire. So I guess we can say that whatever repairs needed to be done really needed to be done, but don't need to be done anymore. A brand new transit trolley bus similar to those operating in Deadwood, South Dakota, generally costs between $450,000 and $600,000 to purchase and build.