Slate Creek past Wonder and Wilderville and ends up in the Rogue River Valley, where it enters Grants Pass. South of downtown Grants Pass, US 199 meets Oregon Route 99 (OR 99) and OR 238 and splits at a partial interchange. The main Redwood Highway turns north with OR 99, passing through downtown and ending at exit 58 on I-5, while the Redwood Spur No. 482, locally known as Grants Pass Parkway, continues straight, bypassing downtown to end at I-5 exit 55. Both of these are signed in both directions as US 199, while signage on US 199 itself at the split only shows "OR 99 north" for the mainline through downtown and "to I-5" for the bypass. On I-5, exit 55 is marked as "US 199", but exit 58 is "OR 99 to US 199". The Oregon Transportation Commission's defined routing of US 199 takes it along the main Redwood Highway through downtown, and the OTC calls the spur to exit 55 "US 199 Spur", but, consistent with signs on I-5 (but not on the surface), the Oregon Department of Transportation calls the spur US 199 and the downtown route OR 99 only. The older route through downtown is a one-way pair on Sixth (southbound) and Seventh (northbound) streets, entirely overlapping OR 99 to I-5 exit 58, where OR 99 continues with I-5 to the north. The Caveman Bridge, a concrete through arch bridge built in 1927, carries Sixth Street over the Rogue River, while the parallel Seventh Street Bridge is a utilitarian bridge from 1960. The Grants Pass Parkway (Redwood Spur) also crosses the river on a four-lane bridge built in 1990; before that bypass was completed, the spur began downtown on E (southbound) and F (northbound) streets. Soon after the old and new routes join, the spur ends at a trumpet interchange with I-5 (exit 55). US 199 is part of the California Freeway and Expressway System, and is part of the National Highway System, a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration. US 199 is eligible to be included in the State Scenic Highway System, but it is not officially designated as a scenic highway by the California Department of Transportation. History By 1854, when it was incorporated, Crescent City had a population of 800 but no road leading inland. The Crescent City and