This Project proposes add a 12-ft lane and a 10-ft shoulder in the median in both the southbound (SB) and northbound (NB) directions on Interstate 5 (I-5) in Shasta County from the Bonnyview Road Interchange north to the I-5/SR 44 freeway to freeway interchange.
Interstate 5 was completed in the early 1960’s in the Redding area of Shasta County. Over the past 40 years, Interstate 5 has served as the main North-South corridor in California providing goods movement and interregional travel up and down the State and the Pacific Northwest. Almost all of Interstate 5 between Red Bluff and Redding has two lanes in each direction and is nearing its capacity. The section of I-5 from the Bonnyview Rd Interchange north to the I-5/SR 44 freeway to freeway interchange has the highest traffic volumes and the highest levels of congestion on Interstate 5 north of Woodland to the Oregon State line. This project proposes to add a lane in each direction to improve operations, add capacity and reduce congestion. The current Level of Service (LOS) on mainline is D. Without these improvements, this segment will operate at a Level of Service F in the next 5-10 years. With the proposed improvements the LOS will improve to C and approach the C/D threshold by the year 2032.