Location: US-290 and Lamar Blvd, Austin 1 1/4 miles to the road that connects to Loop 275 Location: US-290 and 1st St, Austin 3/4 mile to not Loop 275, 1 1/4 mile to I-35 south , 1 1/2 mile until I-35 north and the US-290 split Location: US-290 and 1st St, Austin Exit for 1st … Continue reading Texas State Highway 71, TX-343 Loop/TX-360 Loop to I-35/US-290