Congratulations, on Coralville's 150th Anniversary RIVER PRODUCTS COMPANY IOWA CITY, IOWA Serving the community aggregate needs since 1920 3273 Dubuque Street NE, Iowa City, Iowa 319-338-1184 Congratulations , on Coralville's 150th Anniversary RIVER PRODUCTS COMPANY IOWA CITY , IOWA Serving the community aggregate needs since 1920 3273 Dubuque Street NE , Iowa City , Iowa 319-338-1184