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99-631: As the fire grew, it caused major evacuations and the closure of Interstate 15 . The California Public Utilities Commission ruled that in the Rice fire, San Diego Gas and Electric had not trimmed back trees as state law requires. It was also at fault, the commission said, in the Witch and Guejito fires. The power line that caused the Witch fires shorted three times in three hours, but the utility didn't cut power to it for six hours. In August 2017, administrative law judges S. Pat Tsen and Sasha Goldberg ruled that

198-609: A Voyage Between China and the North-Western Coast of America, Made in 1804" and Richard Henry Dana 's more substantial and convincing account, of his 1834–36 voyage, the classic Two Years Before the Mast . In 1846, the United States went to war against Mexico and sent a naval and land expedition to conquer Alta California . At first, they had an easy time of it, capturing the major ports including San Diego, but

297-591: A center of the emerging biotech industry and is home to telecommunications giant Qualcomm . San Diego had also grown in the tourism industry with the popularity of attractions such as the San Diego Zoo , SeaWorld San Diego , and Legoland California in Carlsbad . According to SDSU professor emeritus Monte Marshall, San Diego Bay is "the surface expression of a north-south-trending, nested graben ". The Rose Canyon and Point Loma fault zones are part of

396-502: A given planning area there may be several distinct neighborhoods. Altogether the city contains more than 100 identified neighborhoods . Downtown San Diego is located on San Diego Bay . Balboa Park encompasses several mesas and canyons to the northeast, surrounded by older, dense urban communities including Hillcrest and North Park . To the east and southeast lie City Heights , the College Area , and Southeast San Diego . To

495-560: A high-speed maglev train route to relieve highway congestion. Proposals from as early as the 1970s were succeeded by the California–Nevada Interstate Maglev project, which was studied from 2004 to 2010 but never realized. Amtrak ran a conventional passenger rail service between the two cities, named the Desert Wind , from 1979 to 1997. The Brightline West line, a conventional high-speed rail service under

594-462: A number of small parks and preserves. San Diego County has one of the highest counts of animal and plant species that appear on the endangered list of counties in the United States. Because of its diversity of habitat and its position on the Pacific Flyway , San Diego County has recorded 492 different bird species, more than any other region in the country. San Diego always scores high in

693-462: A private operator, broke ground in 2024 and is scheduled to commence in 2028 with service between Rancho Cucamonga and Las Vegas. It will use the median of I-15 for most of its 218-mile (351 km) route and reach speeds of up to 186 miles per hour (299 km/h). The segment signed as SR 15 from I-5 to I-8 in San Diego is planned to be redesignated as part of I-15 once this segment

792-663: A result of the Mexican–American War of 1846–48, the territory of Alta California, including San Diego, was ceded to the United States by Mexico, under the terms of the Treaty of Guadalupe Hidalgo in 1848. The Mexican negotiators of that treaty tried to retain San Diego as part of Mexico, but the Americans insisted that San Diego was "for every commercial purpose of nearly equal importance to us with that of San Francisco", and

891-512: A result of the North American Free Trade Agreement . Since the construction of I-15, California, Idaho, Nevada, and Utah have consistently ranked in the fastest-growing areas of the United States. As a result, the route of I-15 has substantially increased in population and commuter traffic. This highway's southern terminus is in San Diego, California , at I-8 , although via SR 15 , a southern extension of

990-584: A river or creek flowed through it, and that they would lead our men to it if they would follow." That river was the San Diego River. Several reservoirs and Mission Trails Regional Park also lie between and separate developed areas of the city. Notable peaks within the city limits include Cowles Mountain , the highest point in the city at 1,591 feet (485 m); Black Mountain at 1,558 feet (475 m); and Mount Soledad at 824 feet (251 m). The Cuyamaca Mountains and Laguna Mountains rise to

1089-478: A spectacular section where the road twists between the narrow walls of the Virgin River Gorge . I-15 continues through Utah for 401 miles (645 km). It is the main north–south connection for the state. The highway approximately follows the old alignment of US 91 from St. George to Brigham City . The highway passes through the fast-growing Utah's Dixie region in the southwestern part of

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1188-490: A toolbox. There are several new high-rises under construction , including two that exceed 400 feet (122 m) in height. The city had a population of 1,307,402 according to the 2010 census, distributed over a land area of 372.1 square miles (963.7 km ). The urban area of San Diego had a total population of 2,956,746, making it the third-largest in the state, after those of Los Angeles and San Francisco . The 2010 population represented an increase of just under 7% from

1287-529: Is a city on the Pacific coast of Southern California , immediately adjacent to the Mexico–United States border . With a population of over 1.3 million residents, it is the eighth-most populous city in the United States and the second-most populous in the state of California , after Los Angeles . San Diego is the seat of San Diego County , which has a population of nearly 3.3 million people. It

1386-562: Is completely converted to Interstate standards , namely where the freeway's interchange with SR 94 is concerned. The interchange currently has left-exits and blind merges, and is due to be updated with a widening of both SR 15 and SR 94. At that time, SR 15 is planned be resigned as part of I-15. The remaining portion of SR 15 conforms with Interstate standards. Source: San Diego San Diego ( / ˌ s æ n d i ˈ eɪ ɡ oʊ / SAN dee- AY -goh , Spanish: [san ˈdjeɣo] )

1485-809: Is currently in the process of being widened. The portions in Arizona, Idaho and Montana have retained their rural, long-haul character. Although Arizona has also grown substantially since the construction of I-15, this highway serves only the isolated corner of northwestern Arizona. Due to this rapid area growth, the I-15 corridor is the focus of several mass transit projects. The Las Vegas Monorail , FrontRunner commuter rail system, and TRAX light rail in Salt Lake City are mass transit lines loosely parallel to I-15 that are now in operation. The Los Angeles–Las Vegas corridor has long been proposed as

1584-580: Is known for its mild year-round Mediterranean climate , extensive beaches and parks , long association with the United States Navy , and its recent emergence as a healthcare and biotechnology development center. Historically home to the Kumeyaay people, San Diego has been referred to as the Birthplace of California , as it was the first site visited and settled by Europeans on what

1683-546: Is mostly because of the city's topography (the Bay, and the numerous hills, mountains, and canyons). Frequently, particularly during the "May gray/ June gloom " period, a thick " marine layer " cloud cover keeps the air cool and damp within a few miles of the coast, but yields to bright cloudless sunshine approximately 5–10 miles (8–16 km) inland. Sometimes the June gloom lasts into July, causing cloudy skies over most of San Diego for

1782-558: Is now the West Coast of the United States . Upon landing in San Diego Bay in 1542, Juan Rodríguez Cabrillo claimed the area for Spain , forming the basis for the settlement of Alta California 200 years later. The Presidio and Mission San Diego de Alcalá , founded in 1769, formed the first European settlement in what is now California. In 1821, San Diego became part of the newly declared Mexican Empire , which reformed as

1881-478: Is the busiest single-runway airport in the United States. San Diego's name can be traced back to the 16th century when Spanish explorer Sebastián Vizcaíno bestowed it upon the area in 1602. He named the bay and the surrounding area "San Diego de Alcalá" in honor of Saint Didacus of Alcalá . Prior to the Spanish establishment of San Diego, the Kumeyaay town was called Kosa'aay , meaning "drying out place" in

1980-595: The California Department of Transportation drew a new segment in Devore that "branched" off of the original alignment and bypassed San Bernardino altogether. This segment's alignment is generally northeast to southwest for about 13 miles (21 km). Then, in Rancho Cucamonga , its directional alignment shifts to north–south where it eventually meets with I-10 (about 15 miles (24 km) west of

2079-509: The First Mexican Republic two years later. California was conquered by the U.S. in 1848 following the Mexican–American War and was admitted as the 31st state in 1850. The largest sectors of the economy of San Diego include military and defense-related activities, tourism, international trade, research, and manufacturing. The city is home to several universities, including UC San Diego , San Diego State University , and

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2178-1001: The Gaslamp Quarter . In the early part of the 20th century, San Diego hosted the World's Fair twice: the Panama–California Exposition in 1915 and the California Pacific International Exposition in 1935. Both expositions were held in Balboa Park , and many of the Spanish/Baroque-style buildings that were built for those expositions remain to this day as central features of the park. The buildings were intended to be temporary structures, but most remained in continuous use until they progressively fell into disrepair. Most were eventually rebuilt, using castings of

2277-777: The Intermountain West . I-15 begins near the Mexican border in San Diego County and stretches north to Alberta, Canada , passing through the states of California , Nevada , Arizona , Utah , Idaho , and Montana . The Interstate serves the cities of San Diego , San Bernardino , Las Vegas , Salt Lake City , Idaho Falls , and Great Falls . It also passes close to the urban areas of Los Angeles , Orange , and Riverside counties, California. The stretches of I-15 in Idaho, Utah, and Arizona have been designated as

2376-575: The Kumeyaay language . After the establishment of San Diego, the Kumeyaay called town and city Tepacul Watai , meaning "Stacked Big". Luiseño speakers in the North County region called it Pushuyi . What has been referred to as the San Dieguito complex was established in the area at least 9,000 years ago. The Kumeyaay may have culturally evolved from this complex or migrated into

2475-734: The Las Vegas Strip corridor. Then, the Interstate crosses the border with Arizona in Mesquite . The Interstate in Nevada runs entirely in Clark County , for a distance of 123.8 miles (199 km). I-15 passes through the northwestern corner of Arizona with a total length of 29.4 miles (47 km). The stretch is separated from the rest of the state and has one major exit, at Beaver Dam / Littlefield, Arizona . It includes

2574-443: The Mexico–United States border , and are physically separated from the rest of the city by the cities of National City and Chula Vista . A narrow strip of land at the bottom of San Diego Bay connects these southern neighborhoods with the rest of the city. For the most part, San Diego neighborhood boundaries tend to be understood by its residents based on geographical boundaries like canyons and street patterns. The city recognized

2673-707: The San Andreas Fault system. About 40 miles (64 km) east of the bay are the Laguna Mountains in the Peninsular Ranges , which are part of the American Cordillera . The city lies on approximately 200 deep canyons and hills separating its mesas , creating small pockets of natural open space scattered throughout the city and giving it a hilly geography. Traditionally, San Diegans have built their homes and businesses on

2772-683: The San Pasqual Valley , which holds an agricultural preserve. Carmel Valley and Del Mar Heights occupy the northwest corner of the city. To their south are Torrey Pines State Natural Reserve and the business center of the Golden Triangle . Further south are the beach and coastal communities of La Jolla , Pacific Beach , Mission Beach , and Ocean Beach . Point Loma occupies the peninsula across San Diego Bay from downtown. The communities of South San Diego (an Exclave ), such as San Ysidro and Otay Mesa , are located next to

2871-719: The University of San Diego . San Diego is the economic center of the San Diego–Tijuana region, the second-most populous transborder metropolitan area in the Western Hemisphere, home to an estimated five million people as of 2022. The primary border crossing between San Diego and Tijuana , the San Ysidro Port of Entry , is the busiest international land border crossing in the world outside of Asia ( fourth-busiest overall). San Diego International Airport

2970-673: The Utah state line in Oneida County . The highway runs through Pocatello , Blackfoot , and Idaho Falls , intersecting with I-86 . The last county in Idaho that I-15 passes through is Clark County . Finally, the Interstate reaches the Montana state line at Monida Pass . I-15 continues onward through 396 miles (637 km) of Montana through the cities of Butte , Helena , and Great Falls , intersecting with I-90 , I-115 , and I-315 . At Sweet Grass , I-15 terminates upon crossing

3069-584: The Wasatch Front , and future plans released by the Utah Department of Transportation (UDOT) indicate that this will continue in the north and the far south of the state as well, due to the extremely rapid growth of Washington County and surrounding areas. In like manner, Las Vegas in Nevada has seen growth along I-15, and in all of the states that it currently serves, it has recently been or

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3168-649: The metropolitan statistical areas in Utah except for Logan , and provide freeway bypasses for Pocatello , Idaho Falls, and Great Falls. Since its creation, I-15 has served as a long-haul route for North American commerce. It is now officially chartered for this purpose: from the junction of I-515 in Las Vegas to the Canadian border , I-15 forms part of the CANAMEX Corridor , a High Priority Corridor , as

3267-676: The "Veterans Memorial Highway". The southern end is at a junction with I-8 and State Route 15 (SR 15) in San Diego, and the northern end is at a connection with Alberta Highway 4 at the Sweetgrass–Coutts Border Crossing . I-15 was built to connect the Inland Empire with San Diego in California, facilitate tourism access to Las Vegas, provide access to the Arizona Strip , interconnect all of

3366-524: The 1,223,400 people reported in 2000. The population density was 3,771.9 inhabitants per square mile (1,456.3/km ). The racial makeup of San Diego was 58.9% White , 6.7% African American, 0.6% Native American, 15.9% Asian (5.9% Filipino , 2.7% Chinese , 2.5% Vietnamese , 1.3% Indian , 1.0% Korean , 0.7% Japanese , 0.4% Laotian , 0.3% Cambodian , 0.1% Thai ). 0.5% Pacific Islander (0.2% Guamanian , 0.1% Samoan , 0.1% Native Hawaiian ), 12.3% from other races , and 5.1% from two or more races. 28.8% of

3465-607: The Californios in southern Alta California struck back. Following the successful revolt in Los Angeles , the American garrison at San Diego was driven out without firing a shot in early October 1846. Mexican partisans held San Diego for three weeks until October 24, 1846, when the Americans recaptured it. For the next several months the Americans were blockaded inside the pueblo. Skirmishes occurred daily and snipers shot into

3564-649: The Canadian border into the province of Alberta ; however, I-15 signage is present on Alberta Highway 4 southbound from Lethbridge to the Canadian border . I-15 was constructed along the route of US 91 . Once I-15 was relatively intact, US 91 was decommissioned, except for one part in Northern Utah ;/ Southern Idaho where I-15 instead followed the route of former US 191 . I-15 originally had two suffixed routes. In California, I-15 had an eastern branch bypassing San Bernardino , which

3663-704: The Colorado River and the depot fell into disuse. From 1857 to 1860, San Diego became the western terminus of the San Antonio-San Diego Mail Line , the earliest overland stagecoach and mail operation from the Eastern United States to California, coming from Texas through New Mexico Territory in less than 30 days. In the late 1860s, Alonzo Horton promoted a move to the bayside area, which he called "New Town" and which became downtown San Diego . Horton promoted

3762-485: The Mexican–American border was eventually established to be one league south of the southernmost point of San Diego Bay , so as to include the entire bay within the United States. The state of California was admitted to the United States in 1850. That same year San Diego was designated the seat of the newly established County of San Diego and was incorporated as a city. Joshua H. Bean , the last alcalde of San Diego,

3861-530: The Navy Coaling Station in Point Loma, and expanded greatly during the 1920s. By 1930, the city was host to Naval Base San Diego , Naval Training Center San Diego , San Diego Naval Hospital , Camp Matthews , and Camp Kearny (now Marine Corps Air Station Miramar ). The city was also an early center for aviation: as early as World War I, San Diego was proclaiming itself "The Air Capital of

3960-579: The San Diego City and County had the fifth-largest homeless population among major cities in the United States, with 8,102 people experiencing homelessness. In the city of San Diego, 4,887 individuals were experiencing homelessness according to the 2020 count. A December 11, 2023 article in The San Diego Union-Tribune by Blake Nelson reports a notable decline in the homeless population in downtown San Diego, specifically in

4059-460: The San Diego region would face Kumeyaay raids in the late 1830s and the town itself would face raids in the 1840s. Americans gained an increased awareness of California, and its commercial possibilities, from the writings of two countrymen involved in the often officially forbidden, to foreigners, but economically significant hide and tallow trade, where San Diego was a major port and the only one with an adequate harbor: William Shaler 's "Journal of

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4158-545: The Spanish settlement, making it the first settlement by Europeans in what is now the state of California. In July of the same year, Mission San Diego de Alcalá was founded by Franciscan friars under Serra. The mission became a site for a Kumeyaay revolt in 1775, which forced the mission to relocate six miles (10 km) up the San Diego River. By 1797, the mission boasted the largest native population in Alta California, with over 1,400 neophytes living in and around

4257-518: The West". The city was home to important airplane developers and manufacturers like Ryan Airlines (later Ryan Aeronautical ), founded in 1925, and Consolidated Aircraft (later Convair ), founded in 1923. Charles A. Lindbergh 's plane, the Spirit of St. Louis , was built in San Diego in 1927 by Ryan Airlines. During World War II , San Diego became a major hub of military and defense activity, due to

4356-521: The abduction of Emma Goldman 's husband Ben Reitman and multiple riots . San Diego's proximity to Tijuana during the Mexican Revolution made this one of the most significant free speech fights during the Wobbly era. In 1916, the neighborhood of Stingaree , the original home of San Diego's first Chinatown and "Soapbox Row", was demolished by anti- vice campaigners to make way for

4455-415: The area around 1000 C.E. Archaeologist Malcolm Rogers hypothesized that the early cultures of San Diego were separate from the Kumeyaay, yet this claim is disputed, with others noting that it does not account for cultural evolution . Rogers later reevaluated his claims, yet they were influential in shaping historical tellings of early San Diego history. The Kumeyaay established villages scattered across

4554-548: The area for the Catholic Saint Didacus , a Spaniard more commonly known as San Diego de Alcalá . On November 12, 1602, the first Christian religious service of record in Alta California was conducted by Friar Antonio de la Ascensión, a member of Vizcaíno's expedition, to celebrate the feast day of San Diego. The permanent European colonization of both California and San Diego began in 1769 with

4653-427: The area heavily, and people and businesses began to relocate to New Town because its location on San Diego Bay was convenient to shipping. New Town soon eclipsed the original settlement, known to this day as Old Town , and became the economic and governmental heart of the city. Still, San Diego remained a relative backwater town until the arrival of a railroad connection in 1878. In 1884–1886, John J. Montgomery made

4752-582: The arrival of four contingents of Spaniards from New Spain and the Baja California peninsula. Two seaborne parties reached San Diego Bay: the San Carlos , under Vicente Vila and including as notable members the engineer and cartographer Miguel Costansó and the soldier and future governor Pedro Fages , and the San Antonio , under Juan Pérez . An initial overland expedition to San Diego from

4851-406: The canneries, mostly staffed by immigrant fishermen from Japan , and later from the Portuguese Azores and Italy whose influence is still felt in neighborhoods like Little Italy and Point Loma . Due to rising costs and foreign competition, the last of the canneries closed in the early 1980s. Downtown San Diego was in decline in the 1960s and 1970s, but experienced some urban renewal since

4950-434: The center of San Diego. The first skyscraper over 300 feet (91 m) in San Diego was the El Cortez Hotel , built in 1927; it was the tallest building in the city until 1963. As time went on, multiple buildings claimed the title of San Diego's tallest skyscraper, including the 530 B Street and Symphony Towers . Currently the tallest building in San Diego is One America Plaza , standing 500 feet (150 m) tall, which

5049-416: The century and a half that records have been kept. In 1949 and 1967, snow remained on the ground for a few hours in higher locations like Point Loma and La Jolla . The other three occasions, in 1882, 1946, and 1987, involved flurries but no accumulation. On February 21, 2019, snow fell and accumulated in residential areas of the city, but none fell in the downtown area. Like much of Southern California ,

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5148-403: The city's economy by focusing on research and science, as well as tourism. From the start of the 20th century through the 1970s, the American tuna fishing fleet and tuna canning industry were based in San Diego, "the tuna capital of the world". San Diego's first tuna cannery was founded in 1911, and by the mid-1930s the canneries employed more than 1,000 people. A large fishing fleet supported

5247-477: The city, hoping to spread plague in the city and effectively kill tens of thousands of civilians. The plan was scheduled to launch on September 22, 1945, but was not carried out because Japan surrendered five weeks earlier. After World War II, the military continued to play a major role in the local economy, but post- Cold War cutbacks took a heavy toll on the local defense and aerospace industries. The resulting downturn led San Diego leaders to seek to diversify

5346-428: The coast are prone to wildfire , and the rates of fire increased in the 20th century, due primarily to fires starting near the borders of urban and wild areas. San Diego's broad city limits encompass a number of large nature preserves, including Torrey Pines State Natural Reserve , Los Peñasquitos Canyon Preserve , and Mission Trails Regional Park . Torrey Pines State Natural Reserve and a coastal strip continuing to

5445-432: The early 1980s, including the opening of Horton Plaza , the revival of the Gaslamp Quarter, and the construction of the San Diego Convention Center ; Petco Park opened in 2004. Outside of downtown, San Diego annexed large swaths of land and for suburban expansion to the north and control of the San Ysidro Port of Entry . As the Cold War ended, the military shrank and so did defense spending. San Diego has since become

5544-462: The east of the city, and beyond the mountains are desert areas. The Cleveland National Forest is a half-hour drive from downtown San Diego. Numerous farms are found in the valleys northeast and southeast of the city. Under the Köppen–Geiger climate classification system , the San Diego area has been variously categorized as having either a hot semi-arid climate ( BSh in the original classification and BSkn in modified Köppen classification with

5643-448: The ensuing Battle of San Pasqual , fought in the San Pasqual Valley which is now part of the city of San Diego, the Americans suffered their worst losses in the campaign. Subsequently, a column led by Lieutenant Gray arrived from San Diego, rescuing Kearny's battered and blockaded command. Stockton and Kearny went on to recover Los Angeles and force the capitulation of Alta California with the " Treaty of Cahuenga " on January 13, 1847. As

5742-536: The entire day. Even in the absence of June gloom, inland areas experience much more significant temperature variations than coastal areas, where the ocean serves as a moderating influence. Thus, for example, downtown San Diego averages January lows of 50 °F (10 °C) and August highs of 78 °F (26 °C). The city of El Cajon , just 12 miles (19 km) inland from downtown San Diego, averages January lows of 42 °F (6 °C) and August highs of 88 °F (31 °C). The average surface temperature of

5841-488: The fire, smoke resulted in a significant increase in emergency room visits due to asthma, respiratory problems, eye irritation, and smoke inhalation; the poor air quality caused San Diego County schools to close for a week. The October 2007 California wildfires destroyed some areas, particularly within Rancho Bernardo , as well as the nearby communities of Rancho Santa Fe and Ramona . The City of San Diego recognizes 52 individual areas as Community Planning Areas. Within

5940-441: The fires totalled $ 5.6 billion, $ 2.4 billion after the utility settled 2500 lawsuits for damages. The $ 379 million it had sought to pass along to customers represented uninsured costs. This wildfire -related article is a stub . You can help Misplaced Pages by expanding it . Interstate 15 Interstate 15 ( I-15 ) is a major Interstate Highway in the Western United States , running through Southern California and

6039-455: The first controlled flights by an American in a heavier-than-air unpowered glider just south of San Diego at Otay Mesa, helping to pioneer a new science of aerodynamics. In 1912, San Diego was the site of a free speech fight between the Industrial Workers of the World and the city government who passed an ordinance forbidding the freedom of speech along an area of "Soapbox Row" that led to civil disobedience, vigilantism , police violence ,

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6138-413: The flag of Castile , but possibly born in Portugal . Sailing his flagship San Salvador from Navidad , New Spain, Cabrillo claimed the bay for the Spanish Empire in 1542, and named the site "San Miguel". In November 1602, Sebastián Vizcaíno was sent to map the California coast. Arriving on his flagship San Diego , Vizcaíno surveyed the harbor and what are now Mission Bay and Point Loma and named

6237-399: The freeway, the route connects to I-5 just north of the Mexico–US border. The northern terminus is in Sweet Grass, Montana , at the Canada–US border, where it becomes Alberta Highway 4 . It is 1,433 miles (2,306 km) long from San Diego to Sweet Grass. North of its junction with SR 91 in Corona , the route roughly follows the former routes of State Route 31. North of Devore ,

6336-424: The higher areas can receive 11–15 inches (280–380 mm) per year. Variability from year to year can be dramatic: in the wettest years of 1883/1884 and 1940/1941, more than 24 inches (610 mm) fell, whilst in the driest years there was as little as 3.2 inches (80 mm). The wettest month on record is December 1921 with 9.21 inches (234 mm). Snow in the city is rare, having been observed only six times in

6435-425: The highway follows the approximate alignment of historic US Route 66 along with US 91 and US 395 . US 395 breaks away at Hesperia and the route continues on a direct path to Barstow 35 miles (56 km) to the north. Meanwhile, the old alignments of US 91 and US 66 follow the Mojave River from Victorville to Barstow along the National Trails Highway . At that point, I-15 follows

6534-430: The historic period and presumably earlier as well, the river has shifted its flow back and forth between San Diego Bay and Mission Bay, and its fresh water was the focus of the earliest Spanish explorers. Miguel Costansó , a cartographer, wrote in 1769, "When asked by signs where the watering-place was, the Indians pointed to a grove which could be seen at a considerable distance to the northeast, giving to understand that

6633-410: The importance of its neighborhoods when it organized its 2008 General Plan around the concept of a "City of Villages". San Diego was originally centered on the Old Town district, but by the late 1860s the focus had shifted to the bayfront, in the belief that this new location would increase trade. As the "New Town" – present-day Downtown – waterfront location quickly developed, it eclipsed Old Town as

6732-417: The interchange with the San Bernardino Freeway (then US 70/US 99, now I-10 ). This was logical as I-15 was following the old alignment of the historic Route 66 which passed through San Bernardino. The segment was completed accordingly. In 1964, legislation was later passed to extend the Interstate to San Diego . Instead of extending the existing freeway from the I-10 interchange south, however,

6831-425: The majority of San Diego's current area was originally occupied on the west by coastal sage scrub and on the east by chaparral , plant communities made up mostly of drought-resistant shrubs. The steep and varied topography and proximity to the ocean create a number of different habitats within the city limits, including tidal marsh and canyons . The chaparral and coastal sage scrub habitats in low elevations along

6930-425: The median is 9.6 inches (240 mm). The months of December through March supply most of the rain, with February the only month averaging 2 inches (51 mm) or more. The months of May through September tend to be almost completely dry. Although there are few wet days per month during the rainy period, rainfall can be heavy when it does fall. Rainfall is usually greater in the higher elevations of San Diego; some of

7029-413: The mesas, while leaving the urban canyons relatively wild. Thus, the canyons give parts of the city a segmented feel, creating gaps between otherwise proximate neighborhoods and contributing to a low-density, car-centered environment. The San Diego River runs through the middle of San Diego from east to west, creating a river valley that serves to divide the city into northern and southern segments. During

7128-623: The mission proper. Mission San Diego was the southern anchor in Alta California of the historic mission trail El Camino Real . Both the Presidio and the Mission are National Historic Landmarks . In 1821, Mexico won its independence from Spain , and San Diego became part of the Mexican territory of Alta California . In 1822, Mexico began its attempt to extend its authority over the coastal territory of Alta California. The fort on Presidio Hill

7227-559: The n denoting summer fog) or a hot-summer Mediterranean climate ( Csa ). San Diego's climate is characterized by warm, dry summers and mild winters, with most of the annual precipitation falling between December and March. The city has a mild climate year-round, with an average of 201 days above 70 °F (21 °C) and low rainfall (9–13 inches [230–330 mm] annually). The climate in San Diego, like most of Southern California, often varies significantly over short geographical distances, resulting in microclimates . In San Diego, this

7326-520: The north constitute one of only two locations where the rare species of Torrey Pine, Pinus torreyana , is found. Due to the steep topography that prevents or discourages building, along with some efforts for preservation, there are also a large number of canyons within the city limits that serve as nature preserves, including Switzer Canyon , Tecolote Canyon Natural Park, and Marian Bear Memorial Park in San Clemente Canyon , as well as

7425-416: The north lies Mission Valley and Interstate 8 . The communities north of the valley and freeway, and south of Marine Corps Air Station Miramar , include Clairemont , Kearny Mesa , Tierrasanta , and Navajo . Stretching north from Miramar are the northern suburbs of Mira Mesa , Scripps Ranch , Rancho Peñasquitos , and Rancho Bernardo . The far northeast portion of the city encompasses Lake Hodges and

7524-635: The number of bird species observed in the annual Christmas Bird Count , sponsored by the Audubon Society , and it is known as one of the "birdiest" areas in the United States. San Diego and its backcountry suffer from periodic wildfires. In October 2003, San Diego was the site of the Cedar Fire , at that time the largest wildfire in California over the past century. The fire burned 280,000 acres (1,100 km ), killed 15 people, and destroyed more than 2,200 homes. In addition to damage caused by

7623-531: The old route of US 91 exclusively as US 66 turned east toward Needles . For many parts of the highway, high-voltage powerlines , such as Path 46 and Path 27 , almost all originating from the Hoover Dam , follow the freeway. Many of these link distant power stations to the Los Angeles metropolitan area. The southern starting point of I-15 was in 1957 planned to be in San Bernardino , at

7722-401: The original façades to retain the architectural style. The menagerie of exotic animals featured at the 1915 exposition provided the basis for the San Diego Zoo . During the 1950s there was a citywide festival called Fiesta del Pacifico highlighting the area's Spanish and Mexican past. In the 2010s there was a proposal for a large-scale celebration of the 100th anniversary of Balboa Park, but

7821-577: The original interchange in San Bernardino). The segment that had been built from Devore to San Bernardino was retained as an Interstate, but was renumbered as I-215 . Note that during the construction of I-15's present alignment, and for some time afterward, I-215 was numbered as I-15E, and its actual mileage would begin at I-10. I-15 runs for a total of 287 miles (462 km) in California. I-15 begins in Primm and continues through Las Vegas along

7920-520: The plans were abandoned when the organization tasked with putting on the celebration went out of business. The southern portion of the Point Loma peninsula was set aside for military purposes as early as 1852. Over the next several decades the Army set up a series of coastal artillery batteries and named the area Fort Rosecrans . Significant U.S. Navy presence began in 1901 with the establishment of

8019-480: The population of Utah, 19 percent of the population of California, and more than 70 percent of the population of Nevada live in counties where I-15 is the primary Interstate Highway . Similarly, in California, I-15 is seeing more commuter traffic due to the growth of the Mojave Desert communities of Hesperia , Victorville , and Barstow . In Utah, I-15 has been under near-constant construction in

8118-447: The population was Hispanic or Latino (of any race); 24.9% of the total population was of Mexican heritage, 1.4% Spanish and 0.6% Puerto Rican . The median age of Hispanic residents was 27.5 years, compared to 35.1 years overall and 41.6 years among non-Hispanic whites; Hispanic San Diegans were the largest group under the age of 18, while non-Hispanic whites constituted 63.1% of population 55 and older. As of January 2019 ,

8217-597: The presence of so many military installations and defense manufacturers. The city's population grew rapidly during and after World War II, more than doubling between 1930 (147,995) and 1950 (333,865). During the final months of the war, the Japanese had a plan to target multiple U.S. cities for biological attack , starting with San Diego. The plan was called " Operation Cherry Blossoms at Night " and called for kamikaze planes filled with fleas infected with plague ( Yersinia pestis ) to crash into civilian population centers in

8316-424: The region, including the village of Kosa'aay which was the Kumeyaay village that the future settlement of San Diego would stem from in today's Old Town . The village of Kosa'aay was made up of thirty to forty families living in pyramid-shaped housing structures and was supported by a freshwater spring from the hillsides. The first European to visit the region was explorer Juan Rodríguez Cabrillo , sailing under

8415-639: The south was led by the soldier Fernando Rivera and included the Franciscan missionary, explorer, and chronicler Juan Crespí , followed by a second party led by the designated governor Gaspar de Portolà and including the mission president (and now saint) Junípero Serra . In May 1769, Portolà established the Presidio of San Diego on a hill near the San Diego River above the Kumeyaay village of Cosoy, which would later become incorporated into

8514-625: The state, I-15 winds its way along the western edge of a nearly continuous range of mountains (the Wasatch Range in the northern half of the state). The only exceptions are north of Cove Fort and when it passes between Cedar City and St. George, known as the Black Ridge, a transition zone of drastic change in elevation and climate, an area where the eastern Great Basin , Colorado Plateau , and Mojave Desert converge. I-15 passes through Idaho for 196 miles (315 km). I-15 crosses

8613-509: The state, which includes St. George , Cedar City , and eventually most of the major cities and suburbs along the Wasatch Front , including Provo , Orem , Sandy , Salt Lake City , Layton , and Ogden . Near Cove Fort , I-70 begins its journey eastward across the country. The Interstate merges with I-80 for about 3 miles (5 km) from South Salt Lake to just west of Downtown Salt Lake City and also merges with I-84 from Ogden to Tremonton . Along nearly its entire length through

8712-412: The threat of legal consequences appears to have played a role in the reduction. In 2000 there were 451,126 households, out of which 30.2% had children under the age of 18 living with them, 44.6% were married couples living together, 11.4% had a female householder with no husband present, and 39.8% were non-families. Households made up of individuals account for 28.0%, and 7.4% had someone living alone who

8811-571: The town every night. The Californios drove cattle away from the pueblo hoping to starve the Americans and their Californio supporters out. On December 1, the American garrison learned that the dragoons of General Stephen W. Kearney were at Warner's Ranch . Commodore Robert F. Stockton sent a mounted force of fifty under Captain Archibald Gillespie to march north to meet him. Their joint command of 150 men, returning to San Diego, encountered about 93 Californios under Andrés Pico . In

8910-493: The urban core. According to data from the Downtown San Diego Partnership, the number of individuals living outside or in vehicles has reached a two-year low, standing at approximately 1,200 as of last month. The decrease is attributed to the implementation of the city's camping ban and the concerted efforts to establish new shelters. While enforcement has led to relatively few individuals being punished,

9009-533: The utility did not reasonably manage its facilities and that the wildfires were not outside of its control. Therefore, they ruled, the utility could not pass its uninsured costs along to its ratepayers. The PUC agreed in early December in a 5-0 vote. The Rice fire began when a dead tree limb fell across power lines. It burned 9,472 acres and destroyed 206 homes. The Witch and Guejito fires combined to burn 197,000 acres, killed two people, injured 40 firefighters and destroyed 1,141 homes and 239 vehicles. Legal claims after

9108-460: The vote. Beyond the town, Mexican land grants expanded the number of California ranchos that modestly added to the local economy. (See, List of pre-statehood mayors of San Diego .) However, San Diego had been losing population throughout the 1830s, due to increasing tension between the settlers and the indigenous Kumeyaay and in 1838 the town lost its pueblo status because its size dropped to an estimated 100 to 150 residents. The ranchos in

9207-561: The water at Scripps Pier in the California Current has increased by almost 3 °F (1.7 °C) since 1950, according to scientists at the Scripps Institution of Oceanography . Additionally, the mean minimum is now above 40 °F (4 °C), putting San Diego in hardiness zone 11, with the last freeze having occurred many decades ago. Annual rainfall along the coast averages 10.65 inches (271 mm) and

9306-496: Was completed in 1991. The downtown skyline contains no supertall buildings due to a regulation put in place by the Federal Aviation Administration (FAA) in the 1970s, which set a 500 feet (152 m) limit on the height of buildings within a one-mile (1.6 km) radius of San Diego International Airport . An iconic description of the skyline includes its skyscrapers being compared to the tools of

9405-438: Was designated I-15E. I-15E was renumbered and is now I-215 . Present day routing of I-15 in California was originally given "I-15W" as its title while it was under construction (the original asphalt portions from Temescal Canyon to Ontario Avenue were dubbed I-15W on maps until 1974), but was never officially signed as such. In Idaho, I-15 had a western branch near Pocatello that connected I-15 and I-84 (then I-80N). This highway

9504-401: Was designated I-15W. It is now the western I-86 . Since the construction of I-15, California, Nevada, and Utah have consistently ranked in the fastest-growing areas of the United States. As a result, the route of I-15 has substantially increased in population and commuter traffic has increased the traffic burden on the freeway. Current population estimates are that more than 75 percent of

9603-448: Was elected the first mayor. Two years later the city was bankrupt; the California legislature revoked the city's charter and placed it under control of a board of trustees, where it remained until 1889. A city charter was reestablished in 1889, and today's city charter was adopted in 1931. The original town of San Diego was located at the foot of Presidio Hill, in the area which is now Old Town San Diego State Historic Park . The location

9702-410: Was gradually abandoned, while the town of San Diego grew up on the level land below Presidio Hill. The Mission was secularized by the Mexican government in 1834 , and most of the Mission lands were granted to former soldiers. The 432 residents of the town petitioned the governor to form a pueblo , and Juan María Osuna was elected the first alcalde ("municipal magistrate"), defeating Pío Pico in

9801-440: Was not ideal, being several miles away from navigable water at its port at La Playa . In 1850, William Heath Davis promoted a new development by the bay shore called "New San Diego", several miles south of the original settlement; however, for several decades the new development consisted only of a pier, a few houses and an Army depot for the support of Fort Yuma . After 1854, the fort became supplied by sea and by steamboats on

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