Arch Cape Tunnel – Cannon Beach OR

Arch Cape Tunnel viewed from its south side on Highway 101

In February 1936, to complete the portion of Highway 101 between Cannon Beach and Manzanita, the Oregon Highway Department approved construction plans for a 1227-foot-long tunnel through Arch Cape. The federal Public Roads Administration provided critical funding for the project…. read more

Chasm Bridge – Manzanita OR

Chasm Bridge - full roadway

Among the challenges in constructing the final link in Oregon’s Highway 101, the state’s bridge engineer responded by designing Chasm Bridge on Neahkahnie Mountain. Using Bureau of Public Roads funds and design advice from the National Parks Service, workers completed… read more

Necarney Creek (Sam Reed) Bridge – Manzanita OR

Necarney Creek Bridge

Referred to as either Necarney Creek or Sam Reed Bridge, this bridge was a critical part of the completion of the Neahkahnie Road section of Highway 101, As described on a Oregon Department of Transportation plaque at the Neahkahnie Mountain… read more