California State Route 283
|Defined by S&HC § 583|
|Maintained by Caltrans|
|Length:||0.356 mi (0.573 km)|
|Existed:||1970 (from US 101) – present|
|South end:||US 101 near Scotia|
|North end:||Rio Dell|
State Route 283 (SR 283) is the shortest state highway in the U.S. state of California, extending only 0.36 miles (0.58 km). Unsigned along its entire length, SR 283 runs from U.S. Route 101 south of Rio Dell to the north end of the Eel River Bridge in Rio Dell. The route was defined in 1970 as a transfer from a realigned Route 101.
State Route 283 largely serves as a trunk route into Rio Dell while relegating the maintenance of the Eel River Bridge to Caltrans. The bridge itself was built in 1941, when U.S. Route 101 ran through what was then known as Eagle Prairie. In 1977, the bridge was renamed the Albert Stanwood Murphy Memorial Bridge, in honor of the Pacific Lumber president who assisted the Save-the-Redwoods League. In 1990, the bridge was given a second name, the Eagle Prairie Bridge, in honor of the 50th anniversary of the bridge's construction and the 25th anniversary of Rio Dell's incorporation.
Except where prefixed with a letter, postmiles were measured on the road as it was in 1964, and do not necessarily reflect current mileage. R reflects a realignment in the route since then. The entire route is in Humboldt County.
|0.00||US 101 (Redwood Highway)||Interchange; south end of US 101 Bus. overlap|
|Rio Dell||0.12||Eel River Bridge over Eel River|
|0.36||Rio Dell||North end of US 101 Bus. overlap|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi
- California Highways: Unsigned State Route 283
- Staff. "State Truck Route List" (XLS file). California Department of Transportation. Retrieved August 21, 2012.
- California Department of Transportation, Log of Bridges on State Highways, July 2007
- California Department of Transportation, All Traffic Volumes on CSHS, 2005 and 2006