Oregon OR 126 (OR 126) is a state highway that connects coastal, western, and central parts of the U.S. state of Oregon. A short freeway section of OR 126 in Eugene and Springfield is concurrent with Interstate 105 (I-105). Route description Florence to Eugene The western terminus of OR 126 is in Florence at a junction with US 101, the main north–south route along the Oregon Coast. The junction is located north of downtown Florence near the municipal airport and the mouth of the Siuslaw River, which empties into the nearby Pacific Ocean. OR 126 travels east on the Florence-Eugene Highway No. 62, which follows the Siuslaw River and the Central Oregon and Pacific Railroad out of Florence and into the Suislaw National Forest and the foothills of the Coast Range. The highway turns north along a bend in the river to reach Mapleton, where it intersects OR 36 and leaves the river and railroad for Knowles Creek. OR 126 continues east along the creek to the Ralph A. Petersen Tunnel, a long tunnel that opened in 1957. From the tunnel, the highway descends from the mountains along Turner Creek to briefly rejoin the Siuslaw River and the Central Oregon and Pacific Railroad. OR 126 and the railroad split from the river to follow Wildcat Creek northeast to Cougar Pass, which marks the boundary between the Siuslaw and Willamette river basins. The highway descends into the Willamette Valley and passes through the town of Veneta and along the south shore of the Fern Ridge Reservoir. It also joins a section of the Coos Bay Rail Link as it approaches Eugene. In the western outskirts of Eugene, OR 126 intersects OR 569, which forms a northern bypass of Eugene. The highway follows Amazon Creek on West 11th Avenue towards downtown Eugene, turning north onto Garfield Street for five blocks. It then becomes concurrent with OR 99, which travels through downtown Eugene on a pair of one-way streets: West 7th Avenue for eastbound traffic and West 6th Avenue for westbound traffic. At a junction with Washington and Jefferson streets, OR 126 turns north onto a freeway, which is designated as Interstate 105 (I-105). In January 2016, the Oregon Legislature passed SB 5, designating OR 126 between Florence and Eugene as "William Tebeau Memorial Highway," named after a pioneering ODOT engineer. Freeway (I-105) section In east Springfield lies the eastern terminus of Eugene-Springfield