AMP: 99 Location: I-5 and Frontage Rd, Douglas Cty Reassurance shield as 99 joins I-5 again. AMP: 102 Location: I-5 and Gael Ln, Douglas Cty A couple miles later, 99 will split again, briefly heading through Riddle and Myrtle Creek. AMP: 103 Location: I-5 and Gael Ln, Douglas Cty Exit for 99 north into Riddle.    N to … Continue reading Interstate 5, OR 99 to OR 99