Ark. Code Ann. § 27-68-104: Powers of highway authorities generally

Acting alone or in cooperation with each other or with any federal, state, or local agency or any other state having authority to participate in the construction and maintenance of highways, the highway authorities of the state, counties, cities, towns, and villages are authorized to:

(1) Plan, designate, establish, regulate, vacate, alter, improve, maintain, and provide controlled-access facilities for public use whenever the authority or authorities are of the opinion that present or future traffic conditions will justify such special facilities, provided that within cities and villages, authority shall be subject to such municipal consent as may be provided by law; and

(2) Exercise, relative to controlled-access facilities, and in addition to the specific powers granted in this chapter, any and all additional authority vested in them relative to highways or streets within their respective jurisdictions.