Dennis L. Edwards Tunnel

The Dennis L. Edwards Tunnel is a highway tunnel in northwestern Oregon that carries the Sunset Highway (U.S. Route 26) through the Northern Oregon Coast Range mountains near the unincorporated community of Manning, approximately 28 miles (45 km) west of Portland. The tunnel was completed in 1940 and is 772.0 feet (235.3 m) long.^[2]

Dennis L. Edwards Tunnel

West entrance to the tunnel
Overview
Other name(s)	Sunset Tunnel
Location	Oregon
Coordinates	45.73069°N 123.25210°W / 45.73069; -123.25210
Route	US 26 (Sunset Highway)
Operation
Opened	1940
Traffic	7200 (2010)[1]
Toll	no
Technical
Length	772 feet (235 m)
No. of lanes	2
Operating speed	55 miles per hour (89 km/h)
Highest elevation	1,200 feet (370 m)
Tunnel clearance	4.27 metres (14.0 ft)[1]
Width	7.90 metres (25.9 ft)[1]

The tunnel was originally known as the Sunset Tunnel until 2002. It was renamed in honor of Dennis L. Edwards, an Oregon Department of Transportation worker who was killed on January 28, 1999 when part of the tunnel collapsed while he was inspecting it for damage caused by heavy rains.^[3] The tunnel was closed for five weeks for repairs,^[4] and renamed for Edwards three years later.^[5]

See also

• List of tunnels in the United States
• List of tunnels by location