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State Route 115

Click here for a key to the symbols used. An explanation of acronyms may be found at the bottom of the page.


Routing Routing

  1. Rte 115 Seg 1From Route 8 southeasterly of Holtville to Route 78.

    Post 1964 Signage History Post 1964 Signage History

    In 1963, this segment was the original segment (b) of Route 115, and (a) and (b) were defined as "(a) Route 98 near Bonds Corners to Route 8 near Holtville. (b) Route 8 near Holtville to Route 78."

    In 1972, Chapter 742 deleted (a) and changed the origin of (b): (a) Route 8 southeasterly of Holtville to Route 78. This reflected relocation of a portion of this route to a former alignment of Route 8. This former part (a) was once US 80.

    Pre 1964 Signage History Pre 1964 Signage History

    This was LRN 187, defined in 1933. A portion was LRN 27. This segment was signed as Route 115 sometime after 1934 but before 1963. Route 115 was not defined in the initial set of signed routes in 1934.

    Status Status

    The SAFETEA-LU act, enacted in August 2005 as the reauthorization of TEA-21, provided the following expenditures on or near this route:

    • High Priority Project #951: Improve bridge 58-0007 (IMP L010.31) on Route 115 that crosses the Alamo River in Holtville. Additionally, this project funds design and environmental analysis of a new bridge over the same river. $800,000.

    Named Structures Named Structures

    Marine Cpl SilvaThe Alamo River Bridge (IMP 10.09, Bridge 58 0292, Built 1959) on the Evan Hewes Highway (Route 115) at the entry to the City of Holtville, California, is named the Marine Corporal Erik H. Silva Memorial Bridge. It was named after Marine Corporal Erik H. Silva, who was only 22 years of age when he died as his platoon was ambushed on April 3, 2003. Cpl. Silva was born in September 1980, in Brawley, California, and grew up in the City of Holtville, California. He graduated from Holtville High School in 1998. Erik was known as a quiet, friendly, well-liked kid who played the trumpet in the band, and was a member of the varsity golf team, a soccer player, and a drum major his last two years of high school. Marine Corporal Silva, an infantry rifleman, died in combat when his platoon was ambushed in Iraq during Operation Iraqi Freedom; Marine Corporal Silva was assigned to the 3rd Battalion, 5th Marines, 1st Marine Division, Camp Pendleton, California. Erik was the third sibling to serve in the United States Armed Forces with his older brother Isaac Silva serving a total of 12 years in the United States Air Force and the California Army National Guard while his older sister Gloria Silva served 10 years in the United States Navy. He also had numerous uncles and aunts who have served honorably in the United States Armed Forces. At the time of his death, Silva was nearly six months short of completing his first enlistment before being honorably discharged to then seek a career with the Department of the California Highway Patrol. Named by Assembly Concurrent Resolution 37, Resolution Chapter 121, 7/23/2019.
    (Image source: Facebook)

    Historical Route Historical Route

    US Highway Shield ACR 123 (Resolution Chapter 104, 8/16/2006) designated segments of former U.S. Highway Route 80 in San Diego and Imperial Counties as Historic U.S. Highway Route 80, and requested the Department of Transportation to design and facilitate the posting of appropriate signs and take related actions in that regard. The resolution noted that US 80, largely parallel to current I-8, was a 180-mile highway spanning San Diego and Imperial Counties from San Diego Bay to the Colorado River, and played a major role in the development of this state during much of the 20th century. In 1909, California voters approved a statewide bond measure for road improvement purposes in the amount of $18 million, providing, among other things, funds to construct a road between San Diego and Imperial Counties, and their county seats of San Diego and El Centro. In 1915, a unique wood plank road was built over the Imperial Valley sand hills, resulting in a shorter route. In 1925, the federal government became involved in standardized highway route designations across the nation and even numbers were assigned to major highways running east and west, and odd numbers for highway running north and south. The numbering of highways proceeded in numerical order beginning in the north and east and continuing south and west, respectively, and, as a result, the routing along California's southern border was formally designated as US 80. This road, from San Diego to Tybee Island, Georgia, was adopted as US 80 on November 11, 1926. US 80 was the first ocean-to-ocean transcontinental highway to be completed, and portions of the route were known as the Bankhead, Broadway of America, Dixie, Lee, Old Spanish Trail, and Southern Transcontinental Highway.


  2. Rte 115 Seg 2From Route 78 east of Brawley to Route 111 at Calipatria.

    Post 1964 Signage History Post 1964 Signage History

    This segment remains as defined in 1963.

    Pre 1964 Signage History Pre 1964 Signage History

    This was LRN 201, defined in 1933. This segment was signed as Route 115 sometime after 1934 but before 1963. Route 115 was not defined in the initial set of signed routes in 1934.


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Interstate Submissions Interstate Submissions

In April 1958, it appears that the designation I-115 was proposed for the route that is now I-505. This was part of the first attempt to assign 3-digit interstates n California. The number was rejected by AASHTO.

Statistics Statistics

Overall statistics for Route 115:

Pre-1964 Legislative Route Pre-1964 Legislative Route

In 1933, Chapter 767 added the route from "[LRN 5] near San Jose to Mount Hamilton" to the highway system. In 1935, this was defined in the highway code as LRN 115 with that definition.

In 1959, Chapter 1062 changed the definition to:

  1. The intersection of [LRN 5] and [LRN 239] near Moorpark Avenue to [LRN 68] near Story Road.
  2. [LRN 68] near San Jose to Mount Hamilton

Later in 1959, Chapter 2065 and 2144 extended the second segment to "Patterson via the vicinity of Mount Hamilton."

In 1961, Chapter 1146 deleted segment (a)

This route ran from Bypass US 101 near San Jose to Patterson via the vicinity of Mount Hamilton, and is present-day Route 130.


Acronyms and Explanations:


Back Arrow Route 114 Forward Arrow Route 116

© 1996-2020 Daniel P. Faigin.
Maintained by: Daniel P. Faigin <webmaster@cahighways.org>.