SH-100 in Adair County

The Oklahoma Department of Transportation (ODOT), in cooperation with the Federal Highway Administration (FHWA), is evaluating the need for improvements to State Highway (SH) SH-100 from 3.5 miles northeast of the Cherokee County line and extending east 5 miles in Adair County, Oklahoma. This segment of SH-100 is a two-lane, open section, major collector facility with 12-foot wide driving lanes and no shoulders. The bridge over Smith Hollow Creek is a 45-foot long reinforced concrete box (RCB). Current traffic volumes are estimated at 3,500 vehicles per day (VPD) and are projected to increase to 5,000 VPD by 2038. This portion of SH-100 has substandard curves, limited sight distances, deteriorating pavement, and no shoulders. Due to safety concerns, ODOT proposes to upgrade the substandard curves, reconfigure driveways and entrances, improve driving surfaces, add shoulders and widen the bridge over Smith Hollow Creek. The purpose of the proposed improvements is to correct roadway deficiencies, enhance safety, and efficiently accommodate traffic.