Requires a county to use eminent domain to increase the apparent right-of-way for a county highway, instead of by requiring dedication of additional right-of-way as part of a subdivision plat. Requires a county, city, or town (unit) to use eminent domain to expand an existing thoroughfare, instead of by requiring dedication of private property as part of a subdivision plat. Prohibits a unit that must proceed with eminent domain regarding a right-of-way or thoroughfare from imposing an additional fee on an applicant for filing a subdivision plat.