State Route 255 marker

State Route 255

Map of Humboldt County in northwestern California with SR 255 highlighted in red
Route information
Maintained by Caltrans
Length8.789 mi[1] (14.145 km)
Major junctions
South end US 101 in Eureka
North end US 101 in Arcata
Location
CountryUnited States
StateCalifornia
CountiesHumboldt
Highway system
← SR 254→ SR 259

State Route 255 (SR 255) is a state highway in the U.S. state of California. It is a loop route of U.S. Route 101 in Humboldt County that runs through the Samoa Peninsula on the western side of Humboldt Bay.

Route description

Samoa Peninsula approach to northernmost span of the Samoa Bridge (at milemarker 2.03).
View of southernmost span of the "Samoa Bridge." Woodley Island Marina (on Humboldt Bay), Eureka, in the foreground with easterly views of Fickle Hill (Coast Ranges) in the background.

It is a western alternate route of U.S. Route 101 between Eureka and Arcata, routed via the three bridges over Humboldt Bay and Tuluwat Island and Woodley Islands, rather than motorists having to circumvent the entire northern section of the bay (known as Arcata Bay) to the road connecting the Arcata area to the Samoa Peninsula. In literature and locally, the portion of the road crossing Humboldt Bay (on three separate bridges) is known collectively as the "Samoa Bridge", the bridge is considered a freeway.[2]

Highway 255 provides direct access to industrial operations on the Samoa Peninsula and the communities of Samoa, Fairhaven, and Manila, all of which are located on the Samoa Peninsula, with the entire combined area located within Greater Eureka.

SR 255 is part of the National Highway System,[3] a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.[4]

History

Before the Samoa Bridge (actually three spans) was completed in 1971, direct access to Samoa from Eureka was by boat or on a fleet of small ferries constructed on the bay or the original circuitous route. The original alternative was a relatively extensive route which took drivers north to Arcata and then around the bay to the northern peninsula before reaching the heavily industrialized area adjacent to Eureka. Completion of the Samoa Bridge and the creation and designation of Highway 255, completed a circle around Arcata Bay by connecting to the New Navy Base Road (a portion now designated as 255), along the peninsula connecting Samoa to the Eureka shore of the bay. This resulted in making the ferry system obsolete. However, one ferry, the Madaket, continues operating as a tour boat on Humboldt Bay.

Major intersections

Except where prefixed with a letter, postmiles were measured on the road as it was in 1964, based on the alignment that existed at the time, and do not necessarily reflect current mileage. R reflects a realignment in the route since then, M indicates a second realignment, L refers to an overlap due to a correction or change, and T indicates postmiles classified as temporary (for a full list of prefixes, see California postmile § Official postmile definitions).[1] Segments that remain unconstructed or have been relinquished to local control may be omitted. The entire route is in Humboldt County.

LocationPostmile
[1][5][6]		DestinationsNotes
Eureka0.00Myrtle AvenueContinuation beyond US 101

 US 101 north (5th Street)		One-way street; south end of SR 255
0.05
 US 101 south (4th Street)		One way street
​South end of freeway
0.20Samoa Bridge (south span) over the Eureka Channel of Humboldt Bay
0.66Woodley Island MarinaInterchange
​0.67Samoa Bridge (middle span) over the Middle Channel of Humboldt Bay
​1.37Samoa Bridge (north span) over the Samoa Channel of Humboldt Bay
​​North end of freeway
​2.03New Navy Base Road – Samoa
Arcata8.80 US 101 (Redwood Highway) – Crescent City, EurekaInterchange; north end of SR 255; US 101 exit 713
Samoa Boulevard – Sunny BraeContinuation beyond US 101
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

References

  1. 1 2 3 California Department of Transportation. "State Truck Route List". Sacramento: California Department of Transportation. Archived from the original (XLS file) on June 30, 2015. Retrieved June 30, 2015.
  2. ↑ "California @ AARoads - California 255". www.aaroads.com.
  3. ↑ Federal Highway Administration (March 25, 2015). National Highway System: California (North) (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved September 3, 2017.
  4. ↑ Natzke, Stefan; Neathery, Mike & Adderly, Kevin (June 20, 2012). "What is the National Highway System?". National Highway System. Washington, DC: Federal Highway Administration. Retrieved July 1, 2012.
  5. ↑ California Department of Transportation (July 2007). "Log of Bridges on State Highways". Sacramento: California Department of Transportation.
  6. ↑ California Department of Transportation, All Traffic Volumes on CSHS Archived July 21, 2011, at the Wayback Machine, 2006
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