Dennis L. Edwards Tunnel

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Dennis L. Edwards Tunnel
Dennis L. Edwards Tunnel west entrance - Oregon.JPG
West entrance to the tunnel
Other name(s) Sunset Tunnel
Location Oregon
Coordinates 45°43′50″N 123°15′08″W / 45.73069°N 123.25210°W / 45.73069; -123.25210Coordinates: 45°43′50″N 123°15′08″W / 45.73069°N 123.25210°W / 45.73069; -123.25210
Route US 26 (Sunset Highway)
Opened 1940
Traffic 7200 (2010)[1]
Toll no
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 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, 27 miles (43 km) west of Portland. The tunnel was completed in 1940 and is 772.0 feet (235.3 m) long.[2]

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[edit]


  1. ^ a b c "Bridge Inspections: US 26 (Hwy 047) over Dennis L. Edwards Tunnel". Tallahassee Democrat. Retrieved 2015-09-14. 
  2. ^ "Dennis L. Edwards Tunnel (#2552+047+04090)". Historic Bridges of the United States. Retrieved 2007-07-31. 
  3. ^ Daza, Rosaria; Robin Frazen; Lisa Lednicer (January 29, 1999). "Tunnel proves deadly". The Oregonian. 
  4. ^ Hamilton, Don (March 5, 1999). "Sunset Tunnel expected to reopen today". The Oregonian. 
  5. ^ Mandel, Michelle (October 4, 2002). "Event honors renaming U.S. 26 tunnel for worker". The Oregonian.