Departmental reorganization files, 1970-1984.
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Illinois. Division of Highways
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The Bates Experimental Road project was set up at Bates, Illinois about 12 miles southwest of Springfield as a means of testing various pavements prior to expending 100 million dollars on a rural highway system. A 2 1/2 mile stretch was laid out on typical terrain within 68 test sections each approximately 200 ft. in length. Construction took place 1920-1921. From the description of Report of the Bates Experimental Road highway research, 1920-1923 / State of Illinois, Department of P...