California State Route 54

State Route 54, also known as SR 54, is a state highway in the U.S. state of California. It has two parts in San Diego County. The western part is called the South Bay Freeway. It starts at Interstate 5 in National City and runs along the Sweetwater River before ending near Spring Valley.

The highway starts again at SR 94 in Rancho San Diego and goes to the city limits of El Cajon. A road called County Route S17 connects the two parts of the highway. The middle part of SR 54 was never built.

The first part of the freeway opened in 1963. The part going west to I-5 was delayed until the Sweetwater River flood channel was built. Construction began in 1984 but was stopped for a few years by a court. This part was finished in 1992. The last part of the freeway was finished in 2007.

Route description

State Route 54 (SR 54) is a road in California that has two parts. The first part, called the South Bay Freeway, starts at I-5 near the Sweetwater River in National City. It runs east along the river and passes by a mall in Paradise Hills before ending near La Presa.

The second part of SR 54 begins at SR 94 in Rancho San Diego and runs east to the edge of El Cajon. This part of the road is important for travel in the area.

History

The earliest road that followed a similar path to today’s SR 54 appeared in newspapers in 1908 and was paved by 1935. The South Bay Freeway was built next, starting as an expressway from National City to Spring Valley. Construction of the freeway west to Interstate 5 and the Sweetwater River flood channel happened around the same time, but was delayed due to environmental concerns and legal issues. By the late 1990s and 2000s, the western part of SR 54 was turned into a freeway, and the part inside El Cajon city limits was given back to the city.

Early construction

A road through Jamacha was mentioned in The San Diego Union as early as February 1908 and was paved in 1935 from US 80 around El Cajon to Sweetwater Valley and other spots by the Sweetwater River.

In 1956, plans were made for what would become the South Bay Freeway, running from Sweetwater Road in National City to Spring Valley and the intersection of Sweetwater Road and Jamacha Boulevard. Three years later, the California State Legislature added Route 280 from near the Sweetwater River to El Cajon to the state highway system. The South Bay Freeway was listed as a top priority in the county’s 1960–1961 budget. By 1961, E Street in Chula Vista followed the Sweetwater River, turning northeast and becoming Sweetwater Road before entering Lemon Grove.

Bids were accepted in November 1962 for the part of the freeway from eastern National City and Valley Road to La Presa and Jamacha Road. This section opened on September 27, 1963, and cost $2.25 million (about $18 million in 2024 dollars). Though it had four lanes and was called an expressway because all intersections were at the same level, plans originally called for eight lanes. Meanwhile, SR 54 was officially designated in the 1964 state highway renumbering as the road from I-5 near the Sweetwater River to I-8 in El Cajon, replacing Route 280.

Sweetwater River channel

SR 54 was extended west as a freeway to I-5 at the same time the Sweetwater River flood control channel was built. The state suggested placing the flood channel between the two roadways of the freeway in 1963, which would also mark the boundary between Chula Vista and National City. Later that year, the county suggested extending the freeway east to US 80 and Third Street in El Cajon. In 1966, the U.S. Army’s Board of Engineers supported building the flood channel to protect future development from floods, and included SR 54 in the plan.

Two years later, county officials worried about delays in getting state and federal approval and thought about building the freeway without the flood control part. The county wanted to build both projects together to save $4 million (about $27 million in 2024 dollars). This required quick action by the county board of supervisors to use Interstate Highway System funds set to expire in 1972. Congress approved the project, but in late 1968, the completion date was pushed back two years.

By 1971, construction was expected to start in three to four years, though Caltrans had approved the project. In July 1974, the California Coastal Commission unanimously decided to stop the entire project because many necessary government approvals were still missing. This upset the mayors of Chula Vista and National City. Meanwhile, work continued on the interchange at I-805, with completion planned for the next year. A U.S. Fish and Wildlife report warned that the project could destroy 20 acres of marshland and harm three endangered bird species, among other environmental issues, but local officials disagreed.

In 1976, Caltrans said SR 54 would not be included in plans for the next six years due to lack of funds and a shift in focus from new roads to maintenance. The water subcommittee of the U.S. House of Representatives later suggested putting the wildlife refuge plan on hold because the U.S. Army Corps of Engineers had not finished their proposal. Over the next few years, support for the project grew from a local citizens’ group, the Chula Vista city council, and the San Diego Chamber of Commerce.

By 1980, the U.S. Army Corps of Engineers was trying to get funds, which was the main obstacle to starting the project. Public concerns were that it was not needed and would cost too much. In 1981, the U.S. Army Corps of Engineers said an environmental impact report was needed before the project could start, after the Endangered Species Act of 1973; the least tern and light-footed clapper rail were considered endangered, and construction could affect their habitat. The next year, the environmental impact report process began, paid for by the U.S. Army Corps of Engineers.

Work on the part west of I-805 and the I-5 interchange started in May 1984, with a detour for I-5 being built. The U.S. Army Corps of Engineers paid for some costs, and federal funds related to the Interstate Highway System were also used. That same year, the county agreed to create a wildlife preserve on 188 acres of marshland to address environmental concerns. Meanwhile, the existing part of the South Bay Freeway had become the “most dangerous five-mile stretch of highway in the county,” as stated by the local fire chief, due to 282 traffic accidents from 1977 to January 1985. By early 1986, extending the SR 54 freeway to El Cajon was declared a “lower priority” by Caltrans.

That year, a lawsuit filed by the Sierra Club stopped work on the project the next year over concerns about damage to the least tern and light-footed clapper rail bird populations from a nearby hotel and its roads. Chief U.S. District Judge Gordon Thompson halted the work because the preserve had not been created. It was estimated the shutdown cost the state $25,000 a day (about $59,000 in 2024 dollars) and caused over 185 layoffs.

The U.S. Fish and Wildlife Service received 300 acres of land in the Sweetwater Marsh from the Santa Fe Land Company to help fix environmental damage, and the lawsuit was settled. Construction resumed in early November 1989. The stop meant the project had to be rebid; one bridge was partly done and was called “the bridge to nowhere.” The eastbound roadway opened to traffic on December 10, 1990, costing about $89.3 million (around $179 million in 2024 dollars). In 1992, during construction, mastodon bones and stone hammers were found. These items were dated to over 120,000 years old and might be some of the earliest signs of humans in North America. Other animal bones were found at the site near Reo Drive in National City, including bison, camel, gopher, and horses. The westbound roadway was finished in July 1992.

Later developments

The expressway part east of I-805 to South Worthington Street was upgraded to a freeway in the late 1990s, and an HOV lane opened in each direction, but only east of I-805. The first part from I-805 to near Woodman Street was done in November 1993. The second part began construction in 1994 and was finished by 1998. In 1999, the state legislature allowed the part of SR 54 from the El Cajon city limit to I-8 to be given to the City of El Cajon, and the transfer happened that year.

The remaining expressway part of SR 54 was turned into a freeway in two phases in the late 1990s and 2000s. The first phase matched the building of SR 125 north of Jamacha Boulevard to SR 94; construction started in 1996 and ended in 2003. The second phase included building the SR 125 toll road and opened on November 19, 2007. While California Transportation Ventures owned the toll part of SR 125, the interchange with SR 54 was built with $160 million (about $233 million in 2024 dollars) in public money. From 2005 to 2007, 1,500,000 cubic meters of rock were blasted through in 160 separate explosions to make space for the interchange. Plans to change the HOV lanes to regular traffic lanes were approved in 2006. Caltrans said the HOV lanes were less effective because there was no space for law enforcement to stop carpool lane violators and no barrier separating the HOV lanes from regular traffic.

As of October 2014, Caltrans thought about giving the eastern part of SR 54 from the SR 94 junction to the El Cajon city limits to the County of San Diego. Two years later, the California Transportation Commission approved a Caltrans plan to cancel the proposed freeway status for the unbuilt part of SR 54 past Jamacha Boulevard because other existing roads could handle the expected traffic. This would let the unused land be sold.

Major intersections

The entire route of California State Route 54 is located in San Diego County.