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MR-DEN HILLS CITY COUNCIL-July 27, 2009 5 rock can hide these types of tire marks. Because there is no increase in function or longevity by using trap rock, staff recommends using the lower priced FA-2 granite. This project is approximately 4.5 miles of roadway. Councilmember Grant stated that,the last time the City used granite they did not have a good experience. He asked why this time it would be better when the City's history using trap rock was better. Public Works Director Hoag stated that the granite can be more multi-colored and does show tracking more but the overall function and longevity of both rocks is the same. Councilmember Grant stated that the color was not important. He asked if the life span of the granite was less than trap rock. Public Works Director Hoag stated that a shorter life span has not been the experience of other cities that have used granite. Councilmember Grant asked what other cities have used granite. Public Works Director Hoag stated that Roseville, Little Canada, Falcon Heights and possibly Shoreview have all used granite for a number of years with success. Councilmember Grant asked if the City still had granite located at the old City Hall building. - Public Works Director Hoag stated that there was approximately one ton still located at that facility. Councilmember Grant asked if this granite would be used in this project. Public Works Director Hoag stated that this rock could be reused if needed. Councilmember Holden asked what the City was getting for the $6,000 difference in price between the granite and trap rock. Public Works Director Hoag explained that the only real difference was in the color and with the granite they may not get a uniform color. The overall functions and longevity of the two types of materials were the same.