turns north to follow the Pacific Coast, passing through the residential area of Ocean City, where it swerves a block east. SR 109 continues north along the Pacific Coast, which has several public access points for beaches and state parks, and passes several private resorts and campgrounds. At Copalis Beach, the highway briefly turns east to serve a community center and crosses over the Copalis River. SR 109 then travels through Griffiths-Priday State Park and ascends the ocean-facing bluffs, weaving between small canyons and ravines along the coast, which forms part of the Olympic Coast National Marine Sanctuary. The highway passes through the community of Seabrook, a modern planned development near Roosevelt Beach laid out with New Urbanist principles and inspired by New England's coastal towns. SR 109 then passes through the communities of Pacific Beach and Moclips, serving motels and resorts along the beaches, before entering the Quinault Indian Reservation on the north side of the Moclips River. The highway descends onto the beach and continues northwest along Grenville Bay on the Pacific Coast, passing through a less-populated forested area. SR 109 then enters Taholah, the administrative center of the Quinault Indian Nation, and terminates at the south end of a bridge crossing the Quinault River. The highway is designated as the Hidden Coast Scenic Byway, a state scenic byway that forms part of the Pacific Coast Scenic Byway system. SR 109 is maintained by the Washington State Department of Transportation (WSDOT), which conducts an annual survey on state highways to measure traffic volume in terms of annual average daily traffic. Average traffic volumes on the highway in 2016 ranged from a minimum of 1,200 vehicles in Taholah to a maximum of 9,600 vehicles in downtown Hoquiam. SR 109 functions as the main access to the Quinault Indian Reservation and Ocean Shores as well as a major tsunami evacuation route. The highway has higher use by vehicles and bicyclists during the summer months. History The first land routes along the north coast of Grays Harbor County (originally named Chehalis County) were indigenous trails, followed by the Northern Pacific Railway, which constructed a railroad connecting Hoquiam to Moclips that opened in July 1906. The railroad spurred the development of hotels and tourist facilities in Moclips alongside expanded lumber and seafood harvesting. A road for automobiles was later constructed to connect Hoquiam to Moclips and Taholah via an inland route with