This report documents the results of a Planning and Environmental Linkages (PEL) Study for US Highway 34 (US 34) between Larimer County Road (LCR) 29 and Weld County Road (WCR) 53 within Larimer County; Weld County; the Cities of Evans, Greeley, and Loveland; and the Towns of Johnstown, Kersey, Garden City, and Windsor. US 34 is a critical east-west transportation corridor for northern Colorado's growing communities. Sustained and strong economic development along US 34 has increased, and travel demand has necessitated the need to enhance safety, reduce congestion, and improve mobility.