Location: US-18 and US-183, Colome Reassurance shield as 183 joins 18. Location: US-18 and 285 Rd, Tripp Cty Reassurance shield as we head out of Colome. Location: US-18 and 322 Rd, Tripp Cty Reassurance shield a few miles later. Location: US-18 and 281 Rd, Tripp Cty Reassurance shield a few miles after the last one. … Continue reading U.S. Route 183, US-18/SD-49 to SD-44