 The state highway has a partial cloverleaf interchange with US 13 and US 460 (Military Highway); within the interchange, SR 166 descends to pass under Military Highway and Norfolk Southern Railway's Norfolk District.SR 166 heads north concurrent with US 460.The highways pass under I-464 and cross Milldam Creek, and continues north as a four-lane undivided highway into the South Norfolk area of Chesapeake.