With its roadbed at 345 feet (105 m) above Thomas Creek, it is the 15th highest bridge in the U.S. North of Bandon, US 101 heads inland for a while, while a spur route provides access to the Charleston Peninsula.Cities on the route include Depoe Bay, Otter Rock (accessible via a side road), and the Gleneden Beach/Salishan area, famed for its resorts.(Until recently, U.S. 26 continued north towards Astoria, sharing an alignment with US 101; however ODOT truncated U.S. 26 to its current terminus at the interchange with 101 several years ago.)The Oregon Coast had historically been isolated and relied on boats and beach routes as their primary means of inter-city transportation.[3][4] The highway originally had six ferry crossings at major rivers and bays that were operated by private companies until their acquisition by the state government in 1927.The state ran these ferries on extended schedules to cope with demand, but they proved inadequate for the growing number of motorists on the coast.[3]: 11 A set of five bridges designed by state engineer Conde B. McCullough and funded by the federal government's New Deal programs were constructed between 1934 and 1936 to replace the ferries.[3]: 14–15 The state government built several new sections of US 101 in the 1950s and 1960s as part of a $30 million modernization program that shortened the length of US 101 by 25 miles (40 km).[12][13] In 1966, Oregon legislators proposed adding US 101 or a parallel corridor to the Interstate Highway System as part of road upgrades between Coos Bay and Astoria.