This excellent I-70 westbound right hand read digital billboard reads to travelers approaching the I-64/61 interchange. Traffic backup is the here, as 64/40 leads to Wentzville, Lake St. Louis and 61 northbound to Troy, MO. Weekend travelers to Lake of the Ozarks pass this sign. St. Charles County has been the fastest growing community for more than 30 years! This growth is due to affordable housing in the Wentzville area and construction is booming. Nearby businesses: hospitals, big box stores, numerous car dealerships and a wide variety of restaurants. Large corporations such as General Motors, Citi and MasterCard Worldwide are also located in St. Charles County.