California State Route 151

State Route 151 (SR 151) is a state highway in the U.S. state of California. The route runs along Shasta Dam Boulevard in Shasta County from Shasta Dam to Interstate 5 near Shasta Lake City.

State Route 151 marker

State Route 151

Shasta Dam Boulevard
Map of Shasta County in northern California with SR 151 highlighted in red
Route information
Maintained by Caltrans
Length6.925 mi[1] (11.145 km)
Tourist
routes		 Shasta Dam Boulevard between Lake Boulevard and CR A18[2]
Major junctions
West endShasta Dam Visitors Center (State Maintenance)
Major intersections
East end I-5 in Shasta Lake
Location
CountryUnited States
StateCalifornia
CountiesShasta
Highway system
← SR 150→ SR 152

Route description

SR 151 begins at Shasta Dam, where the Sacramento River is dammed to form Shasta Lake. State maintenance specifically begins at the visitor center located south of the dam (the segment of Shasta Dam Boulevard that runs directly to and across the top of the dam is closed to the general public). From there, the road heads south as Shasta Dam Boulevard, crossing through heavily vegetated area. The road then meets CR A18 within the city of Shasta Lake. Heading eastward, the road enters the center of Shasta Lake before meeting its eastern terminus at Interstate 5.[3]

SR 151 is not part of the National Highway System,[4] a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.[5] SR 151 is eligible for the State Scenic Highway System,[6] and from Shasta Dam to Lake Boulevard is officially designated as a scenic highway by the California Department of Transportation,[7] meaning that it is a substantial section of highway passing through a "memorable landscape" with no "visual intrusions", where the potential designation has gained popular favor with the community.[8]

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 Shasta County.

LocationPostmile
[1][9][10]		DestinationsNotes
​0.00Shasta Dam Visitors CenterWest end of SR 151/state maintenance; road continues to a roundabout with CR A18 (Lake Boulevard), Shasta Dam Access Road, and Shasta Dam Boulevard north (closed to all but dam personnel)
Shasta Lake3.78 CR A18 (Lake Boulevard)
6.79Cascade Boulevard
R6.92 I-5 – Redding, PortlandInterchange; east end of SR 151; I-5 exit 685
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

References
  1. 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 Department of Transportation (August 2019). "Officially Designated State Scenic Highways and Historic Parkways" (XLSX). Sacramento: California Department of Transportation. Retrieved March 27, 2019.
  3. Microsoft; Nokia (2011-01-26). "SR 151" (Map). Bing Maps. Microsoft. Retrieved 2011-01-26.
  4. Federal Highway Administration (March 25, 2015). National Highway System: California (North) (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved September 24, 2017.
  5. 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.
  6. "Article 2.5 of Chapter 2 of Division 1". California Streets & Highways Code. Sacramento: California Office of Legislative Counsel. Retrieved February 6, 2019.
  7. California Department of Transportation (August 2019). "Officially Designated State Scenic Highways and Historic Parkways" (XLSX). Sacramento: California Department of Transportation. Retrieved September 24, 2017.
  8. California Department of Transportation (2012). Scenic Highway Guidelines (PDF). Sacramento: California Department of Transportation. p. 5. Retrieved June 8, 2017.
  9. California Department of Transportation (July 2007). "Log of Bridges on State Highways". Sacramento: California Department of Transportation.
  10. California Department of Transportation, All Traffic Volumes on CSHS, 2005 and 2006
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