State Route 78 (California)
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State Route 78 (SR 78) is a
state highway A state highway, state road, or state route (and the equivalent provincial highway, provincial road, or provincial route) is usually a road that is either Route number, numbered or maintained by a sub-national state or province. A road numbered ...
in the U.S. state of
California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
that runs from
Oceanside Oceanside may refer to: Places United States *Oceanside, California ** Oceanside Transit Center *Oceanside, New York Oceanside is a Hamlet (New York), hamlet and census-designated place (CDP) located in the southern part of the town of Hempst ...
east to
Blythe The name Blythe ( or ) derives from Old English ''bliþe'' ("joyous, kind, cheerful, pleasant"; modern ''blithe''), and further back from Proto-Germanic ''*blithiz'' ("gentle, kind"). People *Blythe (given name), including a list of people named ...
, traversing nearly the entire width of the state. Its western terminus is at
Interstate 5 Interstate 5 (I-5) is the main north–south Interstate Highway System, Interstate Highway on the West Coast of the United States, running largely parallel to the Pacific coast of the contiguous U.S. from Mexico to Canada. It travels thro ...
(I-5) in
San Diego County San Diego County (), officially the County of San Diego, is a county in the southwest corner of the U.S. state of California, north to its border with Mexico. As of the 2020 census, the population was 3,298,634; it is the second-most populous ...
and its eastern terminus is at
I-10 Interstate 10 (I-10) is the southernmost transcontinental highway in the Interstate Highway System of the United States. It is the fourth-longest Interstate in the country at , following I-90, I-80, and I-40. It was part of the originall ...
in
Riverside County Riverside County is a county located in the southern portion of the U.S. state of California. As of the 2020 census, its population was 2,418,185, making it the fourth-most populous county in California and the 10th-most populous in the Unit ...
. The route is a freeway through the heavily populated cities of northern San Diego County and a two-lane highway running through the
Cuyamaca Mountains The Cuyamaca Mountains (Kumeyaay language, Kumeyaay: ''‘Ekwiiyemak''), locally the Cuyamacas, are a mountain range of the Peninsular Ranges in San Diego County, California. The mountain range runs roughly northwest to southeast. The Laguna Mount ...
to Julian. In
Imperial County Imperial County is a county located on the southeast border of the U.S. state of California. As of the 2020 census, the population was 179,702, ranking as the least populous county in Southern California. The county seat and largest city is ...
, SR 78 travels through the desert near the
Salton Sea The Salton Sea is a shallow, landlocked, highly salinity, saline endorheic lake in Riverside County, California, Riverside and Imperial County, California, Imperial counties in Southern California. It lies on the San Andreas Fault within the S ...
and passes through the city of Brawley and the
Algodones Dunes The Algodones Dunes is a large sand dune field, or Erg (landform), erg, located in the southeastern portion of the U.S. state of California, near the border with Arizona and the Mexican state of Baja California. The field is approximately long ...
before turning north on the way to its terminus in Blythe. SR 78 was one of the original state highways designated in 1934, although portions of the route existed as early as 1900. However, it was not designated east of Brawley until 1959. The freeway section in the
North County North County is a region in the northern area of San Diego County, California. It is the second-most populous region in the county (after San Diego), with an estimated population of 869,322. North County is well known for its affluence, especially ...
of
San Diego San Diego ( , ) is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. With a population of over 1.4 million, it is the List of United States cities by population, eighth-most populous city in t ...
that connects Oceanside and Escondido was built in the middle of the twentieth century in several stages, including a transitory stage known as the Vista Way Freeway, and has been altered several times. An expressway bypass of the city of Brawley was completed in 2012. There are many projects slated to add capacity to the freeway due to increasing congestion in the region.


Route description

SR 78 begins in Oceanside as a continuation of Vista Way. As it encounters a traffic signal and crosses over I-5, the route becomes a suburban freeway traveling east through Oceanside. The freeway loosely parallels Buena Vista Creek before entering the city of
Vista Vista may refer to: Software *Windows Vista, the line of Microsoft Windows client operating systems released in 2006 and 2007 * VistA, (Veterans Health Information Systems and Technology Architecture) a medical records system of the United States ...
. Turning southeast, SR 78 continues into the city of San Marcos near
California State University San Marcos California State University, San Marcos (CSUSM or Cal State San Marcos) is a public university in San Marcos, California, United States. It was founded in 1989 as the 21st campus in the California State University (CSU) system. CSUSM offers 43 ...
and enters Escondido, where it has an interchange with
I-15 I15 may refer to: * Interstate 15, a north–south Interstate Highway in the United States of America * Polikarpov I-15, a Soviet fighter aircraft * I15 (band), a band * , of the Imperial Japanese Navy * Älvsborg Regiment The Älvsborg Regiment ...
. A 2011 Caltrans study estimated that the average commuter encountered a delay of 10 minutes on the portion from I-5 to I-15. After passing the Centre City Parkway ( I-15 Business) interchange, the freeway abruptly ends at the intersection with Broadway. SR 78 then makes a turn south onto Broadway and continues through downtown Escondido by turning east onto Washington Avenue and south onto Ash Street, which becomes San Pasqual Valley Road. Turning east once again, SR 78 leaves the Escondido city limits and enters the
San Pasqual Valley San Pasqual Valley, historically spelled as San Pascual ( Spanish for " Saint Paschal"), is the northernmost community of San Diego, California, United States. It is named for the Kumeyaay village of San Pasqual that was once located there. It ...
as it provides access to the
San Diego Zoo Safari Park The San Diego Zoo Safari Park is a zoo and safari park in Escondido, California, Escondido, a suburb of the city of San Diego, California, located in San Pasqual Valley, San Diego, San Pasqual Valley. Opened in 1972, the park operates as a sis ...
and San Pasqual Battlefield State Park. After leaving the San Pasqual Valley, the road follows a serpentine alignment, heading south to enter the community of
Ramona ''Ramona'' is an 1884 American novel written by Helen Hunt Jackson. Set in Southern California after the Mexican–American War and annexation of the territory by the United States, ''Ramona'' explores the life of a mixed-race Scottish– Native ...
as Pine Street. In Ramona, SR 78 intersects SR 67 and makes a turn east onto Main Street, going through downtown Ramona. The highway leaves Ramona as Julian Road, which continues on a winding mountain alignment through Witch Creek to Santa Ysabel where it meets SR 79. SR 78 runs concurrently with SR 79 across the headwaters of the
San Diego River The San Diego River is a 52 mi (84 km) river in San Diego County, California. It originates in the Cuyamaca Mountains northwest of the town of Julian, then flows to the southwest until it reaches El Capitan Reservoir, the second-largest reservo ...
and through the hamlet of Wynola, briefly entering
Cleveland National Forest Cleveland National Forest is a National forest (United States), U.S. national forest in Southern California that encompasses 460,000 acres/ of inland Montane ecosystems, montane regions. It is approximately 60 miles from the Pacific Ocean, withi ...
before reaching Julian and entering the town as Washington Street. The route, still concurrent with SR 79, turns east onto Main Street and travels through downtown Julian before SR 79 diverges south towards Cuyamaca and SR 78 heads northeast as Banner Road. The road intersects with County Route S2 (CR S2) at a junction called
Scissors Crossing A railroad switch ( AE), turnout, or (set of) points ( CE) is a mechanical installation enabling railway trains to be guided from one track to another, such as at a railway junction or where a spur or siding branches off. Design T ...
; CR S2 runs concurrently in a
wrong-way concurrency Wrong way may refer to: * a traffic sign to warn of wrong-way driving * nickname of Douglas Corrigan (1907–1995), an American aviator who flew east from New York to Ireland instead of west to California in 1938 * nickname of Roy Riegels (1908–1 ...
. Shortly afterwards, SR 78 enters
Anza-Borrego Desert State Park Anza-Borrego Desert State Park (, ''Help:Pronunciation respelling key, AN-zə bə-RAY-goh'') is a California State Park located within the Colorado Desert of Southern California, United States. Created in 1932, the park takes its name from 18th ...
and is designated as a scenic highway for its length in the state park. Although this route travels many miles south of the town of
Borrego Springs Borrego Springs (''borrego'' is Spanish for "sheep") is a census-designated place (CDP) in northeastern San Diego County, California. It is located within the Low Desert area of Southern California. The population was 3,073 at the 2020 census. ...
, it provides access to the town via CR S3. SR 78 travels through the town of Ocotillo Wells before exiting the state park and entering
Imperial County Imperial County is a county located on the southeast border of the U.S. state of California. As of the 2020 census, the population was 179,702, ranking as the least populous county in Southern California. The county seat and largest city is ...
. In Imperial County, SR 78 intersects with SR 86, running concurrently with it southwest of the
Salton Sea The Salton Sea is a shallow, landlocked, highly salinity, saline endorheic lake in Riverside County, California, Riverside and Imperial County, California, Imperial counties in Southern California. It lies on the San Andreas Fault within the S ...
and northwest of San Felipe Creek. SR 78 passes through the desert community of Elmore Desert Ranch before entering the city of
Westmorland Westmorland (, formerly also spelt ''Westmoreland''R. Wilkinson The British Isles, Sheet The British IslesVision of Britain/ref>) is an area of North West England which was Historic counties of England, historically a county. People of the area ...
. The route, still concurrent with SR 86, enters into the city of Brawley as Main Street, where SR 86 splits to the south towards
El Centro El Centro ( Spanish for "The Center") is a city and county seat of Imperial County, California, United States. El Centro is the most populous city in the Imperial Valley, the east anchor of the Southern California Border Region, and the co ...
. SR 78 continues north onto the Brawley Bypass, a freeway that passes to the north of downtown Brawley. SR 111 runs concurrently with SR 78 for a short duration before the latter exits from the freeway and continues east. Then, SR 78 intersects with SR 115 east of Alamorio, running concurrently with it for a brief distance. Shortly after passing through the small community of
Glamis Glamis is a small village in Angus, Scotland, located south of Kirriemuir and southwest of Forfar. It is the location of Glamis Castle, the childhood home of Queen Elizabeth the Queen Mother. History The vicinity of Glamis has prehistoric t ...
, the road turns northeast and eventually north towards Blythe, passing near the Chocolate Mountain Naval Reserve. As it nears the
Colorado River The Colorado River () is one of the principal rivers (along with the Rio Grande) in the Southwestern United States and in northern Mexico. The river, the List of longest rivers of the United States (by main stem), 5th longest in the United St ...
and the
Arizona Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...
border, SR 78 briefly passes through
Cibola National Wildlife Refuge Cibola National Wildlife Refuge is a U.S. National Wildlife Refuge in the floodplain of the lower Colorado River between Arizona and California and surrounded by a fringe of desert ridges and washes. The refuge encompasses both the historic Colo ...
before entering the community of Palo Verde, where the river turns away from the highway and SR 78 enters
Riverside County Riverside County is a county located in the southern portion of the U.S. state of California. As of the 2020 census, its population was 2,418,185, making it the fourth-most populous county in California and the 10th-most populous in the Unit ...
. As it nears Blythe, the highway makes a sharp turn east onto 32nd Avenue before turning north on Rannels Boulevard. It makes a right on 28th Avenue before turning north on South Neighbours Boulevard and passing through Ripley. SR 78 continues north for a few more miles to its terminus at I-10, approximately west of the Arizona border. North of I-10, Neighbours Boulevard becomes Interstate 10 Business for a block before the
business route A business route (or business loop, business spur, or city route) in the United States is a short special route that branches off a parent numbered highway at its beginning, continues through the central business district of a nearby city or to ...
turns east toward Blythe. SR 78 is designated as the Ronald Packard Parkway (after a former
Congressman A member of congress (MOC), also known as a congressman or congresswoman, is a person who has been appointed or elected and inducted into an official body called a congress, typically to represent a particular constituency in a legislature. The t ...
named Ronald Packard from the area) from I-5 in the city of Oceanside to
I-15 I15 may refer to: * Interstate 15, a north–south Interstate Highway in the United States of America * Polikarpov I-15, a Soviet fighter aircraft * I15 (band), a band * , of the Imperial Japanese Navy * Älvsborg Regiment The Älvsborg Regiment ...
in the city of Escondido, and Ben Hulse Highway (after a former
state senator A state senator is a member of a State legislature (United States), state's senate in the bicameral legislature of 49 U.S. states, or a member of the unicameral Nebraska Legislature. History There are typically fewer state senators than there ...
named Ben Hulse) from SR 86 near Brawley to I-10 near the city of
Blythe The name Blythe ( or ) derives from Old English ''bliþe'' ("joyous, kind, cheerful, pleasant"; modern ''blithe''), and further back from Proto-Germanic ''*blithiz'' ("gentle, kind"). People *Blythe (given name), including a list of people named ...
. The portion of SR 78 from SR 86 in Brawley to CR S3 near
Anza-Borrego Desert State Park Anza-Borrego Desert State Park (, ''Help:Pronunciation respelling key, AN-zə bə-RAY-goh'') is a California State Park located within the Colorado Desert of Southern California, United States. Created in 1932, the park takes its name from 18th ...
is designated as part of the
Juan Bautista de Anza National Historic Trail The Juan Bautista de Anza National Historic Trail is a trail extending from Nogales on the U.S.-Mexico border in Arizona, through the California desert and coastal areas in Southern California and the Central Coast region to San Francisco.
auto tour route, promoted by the
National Park Service The National Park Service (NPS) is an List of federal agencies in the United States, agency of the Federal government of the United States, United States federal government, within the US Department of the Interior. The service manages all List ...
. An informal nickname for the road is "the Hops Highway," referring to the fact that the stretch of SR 78 from Oceanside to Julian passes by one-third of all the breweries in San Diego County. SR 78 is part of the
California Freeway and Expressway System The California Freeway and Expressway System is a system of existing or planned freeways and expressways in the U.S. state of California. It encompasses both state highways and federal highways in California. It was defined by Article 2 (comme ...
, although only the metropolitan section of SR 78 is a
freeway A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway, and expressway. Other similar terms ...
. The section of SR 78 from the western junction of SR 79 to the western junction with SR 86 is designated by the
California State Legislature The California State Legislature is the bicameral state legislature of the U.S. state of California, consisting of the California State Assembly (lower house with 80 members) and the California State Senate (upper house with 40 members). ...
as eligible by law for the State Scenic Highway System; however, only the section in Anza-Borrego Desert State Park has officially been designated by
Caltrans The California Department of Transportation (Caltrans) is an Executive (government), executive department of the U.S. state of California. The department is part of the Government of California#State agencies, cabinet-level California State Tran ...
as being part of the system, 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; it gained this status in 1971. SR 78 from I-5 to I-15, and from the eastern junction with SR 86 to the eastern junction with SR 111 is part of the National Highway System (NHS), a network of highways that are considered essential to the country's economy, defense, and mobility by the
Federal Highway Administration The Federal Highway Administration (FHWA) is a division of the United States Department of Transportation that specializes in highway transportation. The agency's major activities are grouped into two programs, the Federal-aid Highway Program a ...
. In 2013, SR 78 had an
annual average daily traffic Annual average daily traffic (AADT) is a measure used primarily in transportation planning, transportation engineering and retail location selection. Traditionally, it is the total volume of vehicle traffic of a highway or road for a year divided ...
(AADT) of 670 between the San Diego–Imperial county line and the western SR 86 junction, and 163,000 between Twin Oaks Valley Road and Nordahl Road, the latter of which was the highest AADT for the highway.


History


Original highway

The Old Banner Toll Road connected the towns of Julian and
Banner A banner can be a flag or another piece of cloth bearing a symbol, logo, slogan or another message. A flag whose design is the same as the shield in a coat of arms (but usually in a square or rectangular shape) is called a banner of arms. Also, ...
in 1871, after a gold rush began in 1870, and eliminated the need to manually lower supplies to gold miners down a slope. The county bought the road from Horace Wilcox in 1874, and removed the toll. The road remained in service until 1925, and remained operational until a flood in the winter season of 1979–1980. By August 1874, a road from Valle de las Viejas to Julian was open and accessible for horse teams. In the meantime, the City of Oceanside began discussions regarding a road east from Oceanside through the San Marcos valley. Efforts to realign the road from Ramona to Julian began in 1892, when a county surveyor examined the prospect of shifting the road away from the Graves hill. Before the designation of SR 78, a road known as the Brawley-Westmorland-Julian-Oceanside Highway (connecting Oceanside, Escondido, Ramona, Julian, Westmorland, and Brawley) existed during the early twentieth century. This road roughly followed the current routing of SR 78 from Escondido to the east of Brawley, although it traveled along a different routing from Westmorland into Brawley. No road connected Brawley with Glamis in 1919; it was necessary to travel north through
Calipatria Calipatria (portmanteau of ''California'' and ''Patria'', Spanish language, Spanish for "homeland") is a city in Imperial County, California. Calipatria is located north of El Centro, California, El Centro. It is part of the El Centro Met ...
to reach Blythe. East of the Sand Hills, there was a road from Glamis passing by Smith Well into Palo Verde, which roughly follows the routing of SR 78. At this time, when the road from the west into Julian had been approved, many in the community began discussing a road east into the Imperial Valley. There were many proposed alignments besides the one east of Julian through Banner, including through the San Felipe Valley, and the Montezuma Valley. The plan was to construct the Santa Ysabel grade portion as a gravel road, and the rest of the road between Ballena (near Ramona) and Julian as a concrete road. The work to pave the road from Santa Ysabel to Julian was nearing completion in September 1920. Grading was completed by August 1921, and paving work continued, as well as grading on the Santa Ysabel and Julian grades. In 1922, the
Automobile Club of Southern California The Automobile Club of Southern California is the Southern California affiliate of the American Automobile Association (AAA) federation of motor clubs. The Auto Club was founded on December 13, 1900, in Los Angeles as one of the nation's first mo ...
scouting expedition reported that the road from Ramona to Julian was "in excellent condition" though the pavement was poor from Ballena to Santa Ysabel, and under construction just east of Santa Ysabel. A road from Julian to Kane Springs was completed in 1925. Efforts to include this road extending to Brawley into the state highway system date back from 1927, in order to receive state funding for the road. Plans for a cross-country road through Borrego Springs were being discussed by county government officials in 1927, as there were no east–west state highways in between Mountain Springs and Riverside. Those living in Calipatria and Westmorland supported the prospect of the road to Julian being improved, and included in the state highway system. In 1928, state assembly member Myron Witter wrote a letter to the San Diego County Board of Supervisors to suggest that the highway be incorporated as a second entrance to the county from the east, and that it would not detract from the progress of the other highway from
El Centro El Centro ( Spanish for "The Center") is a city and county seat of Imperial County, California, United States. El Centro is the most populous city in the Imperial Valley, the east anchor of the Southern California Border Region, and the co ...
; however, the county wanted to prioritize the paving over the designation. Chambers of commerce in the Imperial Valley generally agreed with Witter, proposing that the El Centro–Calexico road be made a part of the state highway system, and the Kane Springs–Julian road be given second priority for inclusion. In June 1930, an agreement was made between the county and the state to share in the construction and maintenance on the road to Kane Springs from Julian; prison crews were to make up some of the workforce. Vista Way opened on November 26, 1930. By 1932, the road from Escondido to Ramona was a gravel road, and the portion from Julian to
U.S. Route 99 U.S. Route 99 (US 99) was a main north–south United States Numbered Highway on the West Coast of the United States until 1964, running from Calexico, California, on the Mexican border to Blaine, Washington, on the Canadian border. It w ...
(US 99), which is currently designated as SR 86, was still a dirt road. That year, the cost was predicted to be $176,000 (about $ in dollars).


Construction in San Diego County

SR 78 was originally formed along with the originally signed state highways in California (Sign Routes) in 1934; however, it only extended to what was then US 99 near Kane Springs. In the North County, SR 78 was legislatively designated as Route 196 from then-
US 101 U.S. Route 101, or U.S. Highway 101 (US 101), is a major north–south highway that traverses the states of California, Oregon, and Washington on the West Coast of the United States. It is part of the United States Numbered Highway Syst ...
(present-day I-5) to Vista, and as Route 77 from Vista to
US 395 U.S. Route 395 (US 395), also known as U.S. Highway 395, is a north–south United States Numbered Highway that traverses the inland areas of the western states of California, Nevada, Oregon, and Washington. It travels for over from a junctio ...
in Escondido. SR 78 was legally known as Route 197 from Escondido to Ramona, and Route 198 from Ramona to US 99, which is now SR 86. From the eastern junction of SR 86 to the Riverside county line, the route was designated as Route 146 in 1959. By 1947, US 395 ran concurrently along the portion of SR 78 from Vista to Escondido before continuing along Santa Fe Avenue to Bonsall and Fallbrook and rejoining its alignment during the 1970s. At this time, all of SR 78 that existed had been paved. Before the present-day freeway was built, SR 78 was routed on the Vista Way Freeway (which was an expressway) from Oceanside east to downtown Vista. After this, it followed Santa Fe Avenue and Mission Road east (now signed as CR S14), continuing onto Grand Avenue in Escondido. Following the intersection with US 395, SR 78 turned south on Ash Street and rejoined the current alignment of the highway. In 1949, the rerouting of SR 78 from US 395 to US 99 was listed as a priority by local officials. The road was known for its curves, even though it went over relatively flat terrain; this reduced its efficiency. The portion of the SR 78 freeway in Oceanside opened to traffic on February 11, 1954. This highway was extended to Vista in May 1955, at a cost of $1,159,000 (about $ in dollars). The part of the freeway from Vista to Escondido was one of the top priorities for highway construction in the county as early as 1960. The center portion of the Vista Way Freeway opened in April 1962, but the western part of the route was not entirely access controlled, as an expressway. The section of the SR 78 freeway from Rancho Santa Fe Road in San Marcos to Nordahl Road was completed in April 1962. The part of the freeway connecting Rancho Santa Fe Road to the Vista portion opened in February 1963, at a cost of $3.9 million (about $ in dollars). The opening of the freeway was credited with helping to bring 315 jobs to San Marcos in 1963. The rest of the freeway between Nordahl Road and US 395 opened on December 21, 1964, providing a four-lane highway from Escondido to Oceanside; the segment cost $1,865,000 (about $ in dollars). SR 78 was officially designated in the 1964 state highway renumbering. The San Diego Chamber of Commerce and the San Diego Highway Development Association urged for the conversion of SR 78 west of Vista, a length of , from an expressway to a freeway in April 1967. The College Boulevard
diamond interchange A diamond interchange is a common type of road junction, used where a controlled-access highway crosses a minor road. Design The freeway itself is grade separation, grade-separated from the minor road, one crossing the other over a bridge. ...
on this western segment was scheduled to open to traffic on October 24, 1967, and connected the recently relocated
MiraCosta College MiraCosta College is a public community college serving coastal Northern San Diego County in California with two campuses, one in eastern Oceanside and the other in Cardiff-by-the-Sea, and many satellite locations, including the Community Le ...
to the freeway. The interchange, previously an
at-grade intersection An intersection or an at-grade junction is a junction where two or more roads converge, diverge, meet or cross at the same height, as opposed to an interchange, which uses bridges or tunnels to separate different roads. Major intersections ar ...
, improved traffic flow to the college by removing the left turn across the highway needed to access it. The construction of the interchange cost $800,941 (about $ in dollars). May 1968 saw the state designating the Jefferson Street and Emerald Drive interchanges as a priority. In August 1968, the state allocated $750,000 (about $ in dollars) for building the Jefferson Street interchange. Further funding difficulties were encountered due to US 395 being given priority, but both interchanges had funding by August 1970. The construction of the Emerald Drive interchange was scheduled for the year 1971. While the El Camino Real interchange was already a diamond interchange, the state planned to add
traffic signal Traffic lights, traffic signals, or stoplights – also known as robots in South Africa, Zambia, and Namibia – are signaling devices positioned at intersection (road), road intersections, pedestrian crossings, and other locations in order t ...
s to the ramps to accommodate more congestion from the nearby mall. The Emerald Drive interchange was completed in September, and the rest of the project was to be completed by the end of the year, leaving Jefferson Drive as the only remaining traffic signal. Construction on the Jefferson Street interchange began in early 1972; the section from I-5 east to Melrose Drive (along the routing of the Vista Way Freeway) had been upgraded to full freeway standards as of 1973.


Glamis Road

Plans to construct a road from Brawley to Glamis date from 1953; the road would provide improved access to two newer state parks. The ceding of the Chocolate Mountains to the
U.S. Navy The United States Navy (USN) is the maritime service branch of the United States Department of Defense. It is the world's most powerful navy with the largest displacement, at 4.5 million tons in 2021. It has the world's largest aircraft ...
had closed a north–south road traversing Imperial County, and the government needed to restore a corridor for local residents to use, as the road was closed during the day for five days a week. However, in August, the Riverside Chamber of Commerce opposed the construction, even though it would replace the Niland–Blythe road. The chamber reversed its stance in December, as the road would mostly be constructed in Imperial County. To construct the road, the
House Armed Services Committee The U.S. House Committee on Armed Services, commonly known as the House Armed Services Committee or HASC, is a standing committee of the United States House of Representatives. It is responsible for funding and oversight of the Department of ...
voted to allocate $660,000 (about $ in dollars) for the Navy to give to Imperial County to construct it in February 1956. The House Appropriations Committee bundled it with 616 other projects, however, which President
Dwight Eisenhower Dwight David "Ike" Eisenhower (born David Dwight Eisenhower; October 14, 1890 – March 28, 1969) was the 34th president of the United States, serving from 1953 to 1961. During World War II, he was Supreme Commander of the Allied Expeditionar ...
vetoed in mid-July. The allocation was eventually approved by both Congress and Eisenhower a few weeks later. ''The San Diego Union'' and the ''Evening Tribune'' (later merged to form the '' Union-Tribune'') were recognized by the San Diego county supervisors for their role in winning congressional support for the funding. There was a brief delay in approving the money in February 1957 when there was a proposal to move the gunnery range. However, at the end of the month, the
United States Navy The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 millio ...
obtained ownership from Imperial County of the old Niland–Blythe road running through the Chocolate Mountain Aerial Gunnery Range for the specified amount. The county then used this money to fund the construction of the Glamis Road, which Ben Hulse predicted would become a state highway. This portion of the road was specifically designed to address the challenges of building it through sand dunes. The engineers routed the highway according to the terrain and made cuts in the sand up to deep. The routing roughly followed an old Native American trail that went from the Imperial Valley to the Palo Verde Valley. According to an Imperial County official, the road was predicted to be more busy than US 80 and to bring traffic to San Diego directly from Needles and US 66. The Glamis road opened in August 1958, and the road from Glamis to Palo Verde was under construction at that time; the part of the road that was already open was dedicated in October. In 1959, the rest of the current routing of SR 78 between Brawley and Palo Verde was added to the state highway system as SR 195 and Legislative Route 146. The state legislature added the portion of SR 78 from SR 115 to the Riverside County line in the 1964 state highway renumbering, also naming the road the Ben Hulse Highway. In March 1964, the Ben Hulse Highway leading to Palo Verde was dedicated, and state senator Hulse's efforts to have the road built were recognized. Following this, in 1965, the newly constructed section was signed as CR S78. The section from Palo Verde to Blythe shows up as part of SR 78 on maps as early as 1965, and the section from southwest of Midway Well to Palo Verde is shown as part of SR 78 as early as 1966.


North County freeway expansion

In 1969, plans to extend the freeway portion of SR 78 east from the Broadway interchange through Escondido were delayed by
Caltrans The California Department of Transportation (Caltrans) is an Executive (government), executive department of the U.S. state of California. The department is part of the Government of California#State agencies, cabinet-level California State Tran ...
director Jacob Dekema due to a lack of funding until 1980. However, in 1970, the community raised concerns about the number of buildings that would need to be destroyed, as the freeway would go through a dense urban area. Other routes, including routing SR 78 along I-15 south, were proposed. The majority of the Escondido City Council supported sending representatives to the upcoming
California Coastal Commission The California Coastal Commission (CCC) is a state agency within the California Natural Resources Agency with quasi-judicial control of land and public access along the state's of coastline. Its mission as defined in the California Coastal Ac ...
meeting in January 1971 to expedite the process of construction. A month later, an environmental study was conducted that focused on the possibilities of rerouting the proposed freeway. In April 1972, the majority of voters supported a referendum that halted plans to build the SR 78 freeway through the city of Escondido. The city then turned its focus to widening Lincoln Avenue and Ash Street instead, and also requested that the routing of SR 78 be moved to Broadway, Washington Avenue, and Ash Street from Grand Avenue to improve traffic flow. Five years later, signs were installed on eastbound SR 78, directing traffic headed for the San Diego Zoo Safari Park to use I-15 south to Via Rancho Parkway instead of continuing eastbound, to bypass the Escondido traffic. City officials expressed a desire to have SR 78 included in the
Interstate Highway System The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly known as the Interstate Highway System, or the Eisenhower Interstate System, is a network of controlled-access highways that forms part of the National Hi ...
in 1985, but this was determined unlikely to succeed by state senator William Craven. In September, the state government agreed to pay $7.5 million (about $ in dollars) for the widening between Oceanside and Escondido, but the county and the five cities the route ran through would have to pay for the rest of the cost. The San Diego County Board of Supervisors endorsed the project that month, in order to have the best chance at getting federal funding. A spike in accidents during that year led to Representative
Ron Packard Ronald C. Packard (born January 19, 1931) is an American retired Republican politician from California who served in the U.S. House of Representatives from 1983 to 2001. Biography Ronald C. Packard was born and raised in Meridian, Idaho. He ...
proposing a way to split the costs between the governments; there were 387 accidents from January to August 1985, a sharp increase from 234 in 1984. In recognition for his work obtaining funding, SR 78 between Oceanside and Escondido was named the Ronald Packard Parkway in 2000. The House Public Works and Transportation Subcommittee allocated $12 million (about $ in dollars) in a bill during June 1986. The
Senate A senate is a deliberative assembly, often the upper house or chamber of a bicameral legislature. The name comes from the ancient Roman Senate (Latin: ''Senatus''), so-called as an assembly of the senior (Latin: ''senex'' meaning "the el ...
raised an issue over the speed limit in October, which made the outcome dubious. The House and Senate eventually settled on a version of the bill in March 1987, only to have President
Ronald Reagan Ronald Wilson Reagan (February 6, 1911 – June 5, 2004) was an American politician and actor who served as the 40th president of the United States from 1981 to 1989. He was a member of the Republican Party (United States), Republican Party a ...
veto the bill due to "pork barrel" spending. Congress passed the bill in April 1987, overriding Reagan's veto, in the same legislation that allowed for rural Interstates to have a speed limit of up to . The bill authorized $15 million (about $ in dollars) in federal funding, and the cities of Oceanside, Carlsbad, Vista, San Marcos, and Escondido agreed to pay $6 million (about $ in dollars); the total cost was $30 million (about $ in dollars). Caltrans predicted that without the widening project, traffic speeds on SR 78 would be as low as by the year 2000 because of congestion. A public relations campaign had begun to garner public support for the project, including
bumper stickers A bumper sticker is an adhesive label or sticker designed to be attached to the rear of a car or truck, often on the bumper. They are commonly sized at around and are typically made of PVC. Bumper stickers serve various purposes, including p ...
saying "I hate 78". The widening project began construction on April 14, 1989, with the first project adding two lanes between San Marcos Boulevard and I-15. Additional funding was secured with a local sales tax increase in 1987, providing $80 million (about $ in dollars), and an additional $7.8 million (about $ in dollars) from the California Transportation Commission. By March 1991, another part of the project from College Boulevard to Melrose Drive began the bidding process. The next year, the project began to wind down, with bidding on the final part of the work between Nordahl Road and I-15. The widening was complete by the beginning of 1994.


Upgrades and improvements

Several projects took place following the completion of the widening project. A realignment project took place in 1994 to remove one of the curves in the San Pasqual Valley, at a cost of $2.5 million (about $ in dollars). The San Marcos Boulevard interchange was renovated beginning in late 1996, but encountered difficulties in the land acquisition process. Work resumed in 1999, and was expected to be finished by 2000, at a cost of $10 million; the benefits of decreased congestion came into effect once the new westbound offramp was opened. The Twin Oaks Valley Road interchange was another subject of contention, as the state Assembly refused to fund the project with $5.1 million (about $ in dollars) in April 1997. However, in June 1998, the California Transportation Commission approved the funding after the San Diego Association of Governments officially requested it. Construction began in August 1999, and was scheduled to end in 2001. A new interchange with Vista Village Drive was opened in 1998, and the College Boulevard interchange in Oceanside was revised along westbound SR 78, at a cost of $5.5 million (about $ in dollars). In addition to this, a new interchange was constructed at Las Posas Road in San Marcos, which opened in 2006. According to the U-T San Diego (the renamed San Diego Union-Tribune), SR 78 at Barham Drive was the worst "traffic bottleneck" in the county between 2010 and 2012. Thus, the interchange at Nordahl Road was also improved, and extra lanes were to be added between Nordahl Road and I-15; construction commenced in early 2012, and the new bridge opened in November. The project cost $41 million. In the late 2000s, planning began for a bypass around the downtown portion of the city of Brawley. An expressway would carry the routing of SR 78 north and east of the city, with an interchange at SR 111, before intersecting with the current alignment of SR 78. A Swedish company began construction on this bypass in April 2008; the first phase consisted of the portion of the bypass that is solely SR 111. The second phase of the bypass, from the western junction with SR 111 to the eastern junction with SR 78, lasted from February 2008 to June 2011. On the third phase of the project, from the junction with SR 86 west of Brawley to the western end of the completed bypass, construction began in late 2010. This project was identified in August 2010 as a project that could be affected by California state budget cuts. The Brawley Bypass, as it was known, opened on October 30, 2012.


Future

The western portion of SR 78 in
North County North County is a region in the northern area of San Diego County, California. It is the second-most populous region in the county (after San Diego), with an estimated population of 869,322. North County is well known for its affluence, especially ...
is currently slated for several improvements. There were plans to construct an additional interchange at Rancho Del Oro Road in Oceanside; however, the Oceanside City Council decided to cancel these plans in 2005, despite studies suggesting that this move would be detrimental to the traffic in the region. The city council reinstated those plans in September 2012. There are also plans to improve the interchange with I-5, which currently involves a traffic signal connecting Vista Way and SR 78 with the ramps to I-5 southbound. Plans call for adding more lanes to I-5 and SR 78 as well as for the construction of a new ramp from SR 78 westbound to I-5 southbound and from I-5 southbound to SR 78 eastbound. The nearby lagoon has served as an obstacle in constructing additional ramps. In 2002, the I-5 northbound to SR 78 eastbound ramp was widened to two lanes to ease congestion. At a 2015 meeting, the Oceanside community expressed concerns about a potential "flyover" ramp design for the new interchange. The project is scheduled for completion in the late 2020s. A 2011 Caltrans report proposed adding two
high-occupancy vehicle lane A high-occupancy vehicle lane (also known as an HOV lane, carpool lane, diamond lane, 2+ lane, and transit lane or T2 or T3 lanes) is a restricted traffic lane reserved for the exclusive use of vehicles with a driver and at least one passenger, ...
s to the freeway portion of SR 78 between I-5 and I-15 to accommodate increased traffic. In early 2016, the mayor of San Marcos stated that there were plans to add another lane in each direction to SR 78 through parts of the city.


Major intersections


See also

*


References


External links


California @ AARoads - California 78
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