The El Monte Busway (also known as the I-10 ExpressLanes) is a shared-use express bus corridor (
busway) and
high occupancy toll (HOT) lanes running along
Interstate 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 origina ...
(San Bernardino Freeway) between Alameda Street near
Union Station
A union station, union terminal, joint station, or joint-use station is a railway station at which the tracks and facilities are shared by two or more separate railway company, railway companies, allowing passengers to connect conveniently bet ...
in
Downtown Los Angeles
Downtown Los Angeles (DTLA) is the central business district of the city of Los Angeles. It is part of the Central Los Angeles region and covers a area. As of 2020, it contains over 500,000 jobs and has a population of roughly 85,000 residents ...
and a point west of
Interstate 605 (I-605) in
El Monte, California
El Monte is a city in Los Angeles County, California, United States. The city lies in the San Gabriel Valley, east of the city of Los Angeles.
El Monte's slogan is "Welcome to Friendly El Monte" and is historically known as "The End of the San ...
. From Alameda Street to
Interstate 710 (I-710) in
Monterey Park, the El Monte Busway runs parallel to the north side of the freeway. After the I-710 interchange, these lanes merge back to the
median
The median of a set of numbers is the value separating the higher half from the lower half of a Sample (statistics), data sample, a statistical population, population, or a probability distribution. For a data set, it may be thought of as the “ ...
of I-10. Eastbound busses exit the El Monte Busway at
El Monte Station before the HOT lanes for other vehicles end west of I-605. Buses also make intermediate stops at
Cal State LA station and
LA General Medical Center station. The busway opened in January 1973 to buses only, three-person
carpool
Carpooling is the sharing of Automobile, car journeys so that more than one person travels in a car, and prevents the need for others to have to drive to a location themselves. Carpooling is considered a Demand-Responsive Transport (DRT) serv ...
s were allowed to enter in 1976, and the facility was converted to HOT lanes as part of the
Metro ExpressLanes project on February 22, 2013. The entire bus route along the El Monte Busway between Alameda Street and El Monte Station's bus entrance at Santa Anita Avenue carries the hidden state highway designation of Route 10S.
The El Monte Busway is used by two
bus rapid transit routes: the
J Line, operated by
Metro and the
Silver Streak, operated by
Foothill Transit
Foothill Transit is a public transit agency that is government funded by 22 member cities in the San Gabriel and Pomona valleys. It operates a fixed-route bus public transit service in the San Gabriel Valley region of eastern Los Angeles Cou ...
. It is also used by several
Metro Express and
Foothill Transit
Foothill Transit is a public transit agency that is government funded by 22 member cities in the San Gabriel and Pomona valleys. It operates a fixed-route bus public transit service in the San Gabriel Valley region of eastern Los Angeles Cou ...
bus services, most of which only run during weekday peak periods.
The busway now carries 16,000 bus passengers per day with 49 buses using the system each hour at peak times and was described by the
United States Department of Transportation
The United States Department of Transportation (USDOT or DOT) is one of the executive departments of the U.S. federal government. It is headed by the secretary of transportation, who reports directly to the president of the United States a ...
as one of the most successful HOV facilities in the country in 2002.
History
Construction

The El Monte Busway was conceived in 1969 as a way to allow travelers to avoid traffic on
Interstate 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 origina ...
(San Bernardino Freeway), promising an 18-minute trip between El Monte and Downtown Los Angeles, compared to 35–45 minutes in the general-purpose lanes.
The project was developed jointly by the California Department of Public Works, Division of Highways (a predecessor of today's
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 ...
) and the
Southern California Rapid Transit District
The Southern California Rapid Transit District (almost always referred to as ''RTD'' or rarely as ''SCRTD'') was a public transportation agency established in 1964 to serve the Greater Los Angeles area. It was the successor to the original Los ...
(SCRTD) (a predecessor of today's
Los Angeles Metropolitan Transit Authority
The Los Angeles Metropolitan Transit Authority (sometimes referred to as LAMTA or MTA I) was a public agency formed in 1951. Originally tasked with planning for rapid transit in Los Angeles, California, the agency would come to operate the vesti ...
).
The 53 million dollar project was paid with federal, state and SCRTD funding and was also intended to be an experiment testing the feasibility of joint highway-bus operations and to increase the overall people-carrying capacity of freeway corridors.
The project was built in a right of way located north of and in the median of the freeway that was owned by
Southern Pacific Railroad
The Southern Pacific (or Espee from the railroad initials) was an American Railroad classes#Class I, Class I Rail transport, railroad network that existed from 1865 to 1996 and operated largely in the Western United States. The system was oper ...
who purchased it from the bankrupt
Pacific Electric
The Pacific Electric Railway Company, nicknamed the Red Cars, was a privately owned Public transport, mass transit system in Southern California consisting of electrically powered streetcars, interurban cars, and buses and was the largest electr ...
streetcar system.
In exchange for giving up part of their property, Southern Pacific would get new tracks capable of handling heavier freight loads compared to the old streetcar tracks.
The project would also include a viaduct in El Monte to elevate Southern Pacific trains as they moved between the area near the east end of the busway to the mainline tracks near the present-day
El Monte Metrolink station.
The formal groundbreaking for the El Monte Busway took place on January 21, 1972.
The El Monte Busway opened in stages, with the seven-mile eastern segment between
Interstate 710 (then-signed as SR 7) and Santa Anita Avenue opening in January 1973.
The El Monte station near the Santa Anita Avenue terminus would open later on July 14, 1973.
The eastern section is located in the median of Interstate 10, with only paint lines separating traffic on the busway from the general-purpose lanes. Railroad tracks are also located in the median, separated from vehicle traffic with concrete barriers.
The western segment has a unique design that took longer to build. Traveling from east to west, a flyover ramp near Interstate 710 moves the lanes north of Interstate 10 to a station near
California State University, Los Angeles
California State University, Los Angeles (Cal State LA) is a public research university in Los Angeles, California, United States. It is part of the California State University system. Cal State LA offers 142 bachelor's degree programs, 122 m ...
. Just west of the
Cal State LA station, the westbound busway lanes crossover the eastbound lanes, reversing the normal placement of the lanes. The reversed lanes allow buses to serve a single
island platform
An island platform (also center platform (American English) or centre platform (British English)) is a station layout arrangement where a single platform is positioned between two tracks within a railway station, tram stop or transitway inte ...
station at the
Los Angeles County+USC Medical Center but prevent vehicles from entering the busway from the general-purpose lanes of Interstate 10 in the eastbound direction.
The LAC+USC Medical Center station was completed in November 1974, the four-mile western segment between Mission Avenue in Los Angeles and Interstate 710 was completed in January 1975, and the Cal State LA station was finished in February 1975.
The entire 11-mile busway was dedicated on February 18, 1975.
The El Monte was extended to its present length of 12 miles in 1989 with the opening of a one-mile extension from Mission Road to Alameda Street adjacent to
Los Angeles Union Station.
Opening to carpools
The busway was opened to vehicles with three or more occupants during the 1974 Southern California Rapid Transit District strike, which lasted 68 days between August and October.
In 1976, the busway was converted into a shared-use express bus corridor and high occupancy vehicle (HOV) lane, with carpools and vanpools with three or more occupants permitted during peak hours only. HOV access was extended to weekends in 1977 and 24 hours a day in 1981.
Opening the busway to HOVs had only minimal impact on bus running time and transit ridership remained stable.
The requirement that vehicles must have three or more occupants left the El Monte Busway out of alignment with California's other HOV lanes, which generally required only two or more occupants. State senator
Hilda Solis (
D-
La Puente) authored State Bill 63,
which would lower the occupancy requirement from three occupants to two for a 24-month experiment starting January 1, 2000, hoping it would increase carpool rates. Despite opposition from
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 ...
,
Foothill Transit
Foothill Transit is a public transit agency that is government funded by 22 member cities in the San Gabriel and Pomona valleys. It operates a fixed-route bus public transit service in the San Gabriel Valley region of eastern Los Angeles Cou ...
and the Southern California Transit Advocates (a transit users' organization), the bill was passed the state legislature and signed into law by Governor
Gray Davis
Joseph Graham "Gray" Davis Jr. (born December 26, 1942) is an American attorney and former politician who served as the 37th governor of California from 1999 until he was recalled and removed from office in 2003. He is the second state governor ...
in July 1999.
The experiment was a disaster, journey times increased by 20 to 30 minutes as speeds on the busway dropped from to which was slower than the general-purpose lanes of Interstate 10 where speeds also dropped from to .
The change generated over 1,000 complaints to government agencies from bus riders and prior carpoolers.
Solis at first defended the change,
but by May, she supported Assembly Bill 769,
which would rescind the change and restore the higher occupancy requirement during peak hours,
which passed and took effect in July 2000.
However, the lower two occupant requirement remained during off-peak hours and weekends.
Conversion to bus rapid transit and high occupancy toll
In the early 1990s, Caltrans built another busway in Los Angeles County, the
Harbor Transitway from Los Angeles south to the new
Harbor Gateway Transit Center
Harbor Gateway Transit Center, formerly Artesia Transit Center, is a large bus station at the southern end of the Harbor Transitway that serves as a transport hub (known locally as a transit center) for the South Bay (Los Angeles County), South B ...
.
Los Angeles County Metropolitan Transportation Authority
The Los Angeles County Metropolitan Transportation Authority (LACMTA), branded as Metro, is the county agency that plans, operates, and coordinates funding for most of the Transportation in Los Angeles, public transportation system in Los Ang ...
(Metro) staff recognized that there was an opportunity to link the operationally similar Harbor Transitway and El Monte Busway, even suggesting to Caltrans that a direct connection be built between the two busways.
In 1998, Metro studied the extension but found it expensive and technically challenging, and to date, there have been no further efforts to connect the busways directly. Ahead of the 1996 opening of the Harbor Transitway, Metro staff studied how to operate its buses on the new facility. In 1993, they recommended the creation of a dual
hub-and-spoke ("dual hub") system with a trunk route that served both the Harbor Transitway and the El Monte Busway and the El Monte Station and Harbor Gateway Transit Center serving as hubs. Ultimately, the Metro Board of Directors decided to continue running bus routes on both the El Monte Busway and Harbor Freeway as they had before.
After the very successful launch of the
Orange Line (now G Line), a new busway in the San Fernando Valley, Metro decided to rebrand the county's other busways in an attempt to increase awareness. In March 2006, Metro decided that the Harbor Transitway would be colored bronze and the El Monte Busway would be colored silver on Metro's maps, and the two would be marketed as a "Combined Transitway Service." No changes were made in the operations of the bus routes operated on the lines. The changes were criticized as being difficult to understand for irregular and new riders.
The first
bus rapid transit route came to the El Monte Busway in 2007 when Foothill Transit introduced the
Silver Streak. The line replaced Foothill Transit route 480, the agency's busiest line. The Silver Streak used higher-capacity vehicles and eliminated many of the off-freeway deviations and minor stops on Line 480.
Metro returned to its plan for a dual-hub route in 2009, proposing a new bus rapid transit service called the
Silver Line (now J Line) utilizing both the El Monte Busway and the Harbor Transitway. The new higher frequency service would be funded by converting both corridors into
high occupancy toll (HOT) lanes, to be branded as the
Metro ExpressLanes. The Silver Line began operations on December 13, 2009, with Metro planning to refurbish the aging stations along both corridors over the coming years. The eastern section of the El Monte Busway, between Interstate 710 and El Monte was restriped to create two HOT lanes in each direction. The
electronic toll collection
Electronic toll collection (ETC) is a wireless system to automatically collect the usage fee or Road pricing, toll charged to vehicles using toll roads, HOV lanes, toll bridges, and toll tunnels. It is a faster alternative which is replacing Tol ...
equipment for the HOT lanes on the Harbor Transitway went into service on November 10, 2012. The El Monte Busway's HOT lanes opened on February 22, 2013.
By 2010, the El Monte Station has become one of the busiest bus terminals west of Chicago, with 22,000 boardings daily as of 2010.
Starting in 2010, the old station was demolished and replaced in October 2012 with a new station capable of handling up to 40,000 passengers per day.
In January 2015, the Cal State LA and LA General Medical Center stations were temporarily closed for one month for refurbishment and stairway and light replacement.
Transit Access Pass (TAP) card
ticket vending machines were added to most stations in early 2017 to support all-door boarding on the Silver Line. Pre-payment of fares and all-door boarding reduces the time buses need to remain stopped at stations.
On November 1, 2020, a new transitway was opened on the south side of
Patsaouras Transit Plaza to serve Union Station, funded in part by Metro ExpressLanes toll revenue. The station was originally scheduled to open in 2015, but project delays had pushed the opening back.
Entrances and exits
El Monte Busway can only be entered and exited at a few points.
Westbound entrances are at I-605 (from Interstate 10), Santa Anita Avenue (from Interstate 10), El Monte Station (buses only), Del Mar Avenue (ramp from street level), Fremont Avenue (from Interstate 10), and I-710 (buses from southbound I-710 only).
Westbound exits are at Santa Anita Avenue (to Interstate 10), Fremont Avenue (to Interstate 10),
US 101, and Alameda Street
Eastbound entrances are at Alameda Street, Fremont Avenue (from Interstate 10), and
Rosemead Boulevard/SR 19 (from Interstate 10)
Eastbound exits are at I-710 (buses to northbound I-710 only), Fremont Avenue (to Interstate 10), Del Mar Avenue (ramp to street level), Rosemead Boulevard/SR 19 (to Interstate 10), El Monte Station (buses only), and I-605 (to Interstate 10).
Tolls
, the
high-occupancy toll lane
A high-occupancy toll lane (HOT lane) is a type of traffic lane or roadway that is available to high-occupancy vehicles and other exempt vehicles without charge; other vehicles are required to pay a road pricing, variable fee that is adjusted in ...
s (HOT) are a
24/7 service
In commerce and industry, 24/7 or 24-7 service (usually pronounced "twenty-four seven") is Service (economics), service that is available at any time and usually, every day. An alternate orthography for the numerical part includes 24×7 (usuall ...
. Solo drivers are tolled using a
congestion pricing
Congestion pricing or congestion charges is a system of surcharging users of public goods that are subject to congestion through excess demand, such as through higher peak charges for use of bus services, electricity, metros, railways, tel ...
system based on the real-time levels of traffic. For two-person carpools, they are charged the posted toll during the peak hours between 5:00 am and 9:00 am, and between 4:00 pm and 7:00 pm; no toll is charged during off-peak hours. Carpools with two or more people and motorcycles are not charged at all hours.
All tolls are collected using an
open road tolling
Open road tolling (ORT), also called all-electronic tolling, cashless tolling, or free-flow tolling, is the collection of tolls on toll roads without the use of tollbooths. An electronic toll collection system is usually used instead. The major ...
system, and therefore there are no toll booths to receive cash. Each vehicle using the HOT lanes is required to carry a
FasTrak ''Flex'' transponder with its switch set to indicate the number of the vehicle's occupants (1, 2, or 3+). Those with clean air vehicles need to apply to get a 15 percent discount. Solo drivers may also use the FasTrak standard tag without the switch. Drivers without any FasTrak tag will be assessed a toll violation regardless of whether they qualified for free.
Bus services
A mix of
Los Angeles County Metropolitan Transportation Authority
The Los Angeles County Metropolitan Transportation Authority (LACMTA), branded as Metro, is the county agency that plans, operates, and coordinates funding for most of the Transportation in Los Angeles, public transportation system in Los Ang ...
and
Foothill Transit
Foothill Transit is a public transit agency that is government funded by 22 member cities in the San Gabriel and Pomona valleys. It operates a fixed-route bus public transit service in the San Gabriel Valley region of eastern Los Angeles Cou ...
bus services utilize the El Monte Busway to operate between
Downtown Los Angeles
Downtown Los Angeles (DTLA) is the central business district of the city of Los Angeles. It is part of the Central Los Angeles region and covers a area. As of 2020, it contains over 500,000 jobs and has a population of roughly 85,000 residents ...
and various points in the
San Gabriel Valley
The San Gabriel Valley (), sometimes referred to by its initials as SGV, is one of the principal valleys of Southern California, with the city of Los Angeles directly bordering it to the west and occupying the vast majority of the southeastern ...
and
Pomona Valley
The Pomona Valley is located in the Greater Los Angeles Area between the San Gabriel Valley and San Bernardino Valley in Southern California. The valley is approximately east of downtown Los Angeles.
History
The earliest inhabitants of Pomo ...
, as well as the
San Bernardino County
San Bernardino County ( ), officially the County of San Bernardino and sometimes abbreviated as S.B. County, is a county located in the southern portion of the U.S. state of California, and is located within the Inland Empire area. As of th ...
city of
Montclair.
Two
bus rapid transit routes utilize the El Monte Busway: the
J Line, operated by
LA Metro and the
Silver Streak, operated by
Foothill Transit
Foothill Transit is a public transit agency that is government funded by 22 member cities in the San Gabriel and Pomona valleys. It operates a fixed-route bus public transit service in the San Gabriel Valley region of eastern Los Angeles Cou ...
. These routes offer frequent service, 24 hours a day, seven days a week. Metro and Foothill Transit offer a reciprocal fare program where pass holders may ride either J Line or Silver Streak buses between Downtown Los Angeles and the El Monte Station.
The El Monte Busway is also used by
Metro Express 487 and 489 along with
Foothill Transit
Foothill Transit is a public transit agency that is government funded by 22 member cities in the San Gabriel and Pomona valleys. It operates a fixed-route bus public transit service in the San Gabriel Valley region of eastern Los Angeles Cou ...
490, 493, 495, 498, 499, and 699. Metro Express 487 operates all-day, seven days a week; the rest only run during weekday peak periods.
List of stations
The El Monte Busway has four stations served by the
Metro J Line, the
Silver Streak and is also served by
Metro Express and
Foothill Transit
Foothill Transit is a public transit agency that is government funded by 22 member cities in the San Gabriel and Pomona valleys. It operates a fixed-route bus public transit service in the San Gabriel Valley region of eastern Los Angeles Cou ...
buses. The stations from west to east are:
References
SB 63 analysis
External links
* – includes FasTrak and other toll information for the HOT lanes
Foothill TransitLos Angeles County Metropolitan Transportation Authority
{{USBRT
Los Angeles Metro Busway
Southern California freeways
Busways
Toll roads in California
Transport infrastructure completed in 1973
1973 establishments in California
High-occupancy toll roads