Requires the consent of certain cities, towns, or villages before the department of transportation makes any major alteration to a road located within such political subdivision

HB 665 requires Missouri's Department of Transportation to obtain written consent from the local government of any city, town, or village with a population of 10,000 or more before making major changes to state-maintained roads (excluding highways). It defines "major alteration" to include widening/narrowing roads, changing routes, adding traffic features like signals or bike lanes, or altering speed limits by more than 5 mph. Local governments must gather resident input on how projects affect businesses and neighborhoods, then respond to the DOT within 30 days. This bill directly affects communities over 10,000 residents and ensures their input is required for significant road modifications.