District 12 Transportation Concept Reports (TCR)

State Route 1

State Route 1 (SR-1), also known as the Pacific Coast Highway (PCH), provides access to and between coastal cities in Orange County. It is used for commuters, recreational and some interregional travel, and provides direct and indirect access to shopping areas, the beaches, and California State Long Beach. The average daily traffic varies from about 31,000 to 69,000. Travelers experience congestion during the week in both AM/PM peak periods, and on holidays, weekends and during special events. SR-1 is particularly congested at or near major recreational and tourist areas during the summer tourist season. more...

Interstate 5

Interstate 5 (I-5), is the major north-south route that is used for inter-regional, interstate, and international travel and goods movement. It traverses diagonally about forty four miles through Orange County from San Diego County on the south to the Los Angeles County on the north. It serves as the backbone of Southern California Transportation network, connecting the major urban centers of Los Angeles, Orange, and San Diego Counties. The average daily traffic (ADT) varies from 115,000 to over 300,000 vehicles. Most major state and local routes in the county intersect I-5. Starting in 1988, there has been extensive widening on I-5 from SR-1 (PM 6.69) to the SR-91 (PM 42.10) interchange. The widening on I-5 between SR-1 and SR-22/SR-57 interchange was completed in early 1997. The widening project from the 5/22/57 (PM 34.00) interchange to SR-91 (PM 42.10) will be completed by late year 2000. Commuters on I-5 experience some morning and afternoon congestion on the recently completed segments, but much less than before. The remaining segments in the North County will see relief within a year. more...

State Route 22

State Route 22 (SR-22) also known as the Garden Grove Freeway, is a 6-lane conventional highway in Los Angeles County and a 4-8 lane access controlled freeway in Orange County. The route provides access between cities in Los Angeles and Orange Counties. It is used for commuting and interregional travel, and provides direct and indirect access to employment centers, recreational, shopping areas, medical centers and universities. SR-22 underwent major reconstruction beginning in early 2001 and the project was completed in year 2007. HOV, general purpose, and auxiliary lanes were added to this facility. The average daily traffic (ADT) ranges between 60,000 to 2600,000 vehicles. The Concept Report referred herein was prepared in 1996. A new Corridor System Management Plan (CSMP) for SR-22 is currently under development. This CSMP is scheduled to be completed in June 2010 and will replace the dated Route Concept Report. more...

State Route 39

State Route 39 (SR-39), also known as Beach Boulevard is a six to eight lane facility located within Orange County except for two small portions that are located between Rosecrans Avenue and Imperial Highway in Los Angeles County. It is a major north-south arterial and is classified as State Highway – Conventional. SR-39 was Orange County's first Smart Street system utilizing traffic signal synchronization, bus turnouts, intersection improvements and addition of travel lanes by removing on-street parking and consolidating driveways. This route is used for local travel and access to the coastal communities located along Pacific Coast Highway (SR-1) as well as commercial, entertainment and business districts. On weekdays SR-39 is heavily used by commuters provides access to the four freeways (I-405, SR-22, SR-91 and I-5) intersecting this facility. The average daily traffic (ADT) ranges from 26,000 to 71,000 vehicles. more...

State Route 55

State Route 55 (SR-55), also known as Costa Mesa Freeway, provides north-south access in Orange County. It is the main arterial connecting the Inland Empire Counties to central and south Orange County. It also is the main route to the beach and tourist attractions in the county's coastal communities. The average daily traffic (ADT) varies from 48,000 to 223,000. SR-55's High Occupancy Vehicle (HOV) lanes was Orange County's first such facility and have been in operation since 1985. During weekday peak periods (morning and afternoon), the mixed flow lanes experience congestion and the carpool lane operates at near capacity.

SR-55 is part of the local arterial system from Finley Avenue in the city of Newport Beach to 19th Street in the city of Costa Mesa. From 19th street to SR-91, Route 55 is part of the freeway system. Prior to 1992 the freeway portion of SR-55 ended at Mesa Drive merging with Newport Boulevard. In 1992 the freeway portion of SR-55 was extended to 19th Street. Caltrans relinquished Newport Boulevard between Mesa Drive and 19th Street to the City of Costa Mesa for local control in 1996. more...

State Route 57

State Route 57 (SR-57), also known as the Orange Freeway, is a main north/south arterial Orange County. In addition to the daily commuters, SR-57 is also utilized by recreational users traveling to sporting and entertainment events . From I-5/SR-22/SR-57 interchange, the average daily traffic (ADT) on this route varies from 174,000 to 234,000. Approximately 11 miles between SR-1 and I-5/SR-22 has not been adopted. The existing facility is an 8 lane freeway, with HOV lanes for most of its length. The HOV lanes were opened in June of 1992. During both peak periods, the general purpose lanes experience congestion and the carpool lanes operate at near capacity. The preparation of the Corridor System Management Plan (CSMP) for SR-57 is currently in progress. This CSMP is to replace the dated Transportation Concept Report, and scheduled to be completed in June 2010. more...

State Route 90

State Route 90 (SR-90), also known as Imperial Highway, is a conventional highway from the Los Angeles/Orange County line to State Route 91 except for the freeway segment between Yorba Linda Boulevard and La Palma Avenue . SR-90 is a major east-west transportation corridor in northern Orange County and traverses the Cities of La Habra, Fullerton, Brea, Placentia, Yorba Linda, and Anaheim, and unincorporated areas of Orange County. SR-90 is a four to eight lane facility and is 12.5 miles long located in North Orange County. A flyover was constructed at Orangethorpe Avenue for congestion relief and safety measures at a major rail crossing, which was completed in 2009. SR-90 is part of the Smart Street system utilizing traffic signal synchronization, bus turnouts, intersection improvements and addition of travel lanes by removing on-street parking and consolidating driveways. The Average Daily Traffic (ADT) ranges from 26,000 to 68,000 vehicles. more...

State Route 91

State Route 91 (SR-91) in Orange County, also known as the Riverside Freeway and the Artesia Freeway is an access controlled, grade separated 6 to 12 lane freeway. It is used for commuter, goods movement and interregional travel. The average daily traffic (ADT) varies from 170,000 to 275,000. Travelers experience congestion during the week in both AM/PM peak periods, on holidays and during weekends. The preparation of the Corridor System Management Plan (CSMP) for SR-91 is currently in progress. This CSMP is to replace the dated Transportation Concept Report, and scheduled to be completed in June 2010. more...

Interstate 405

The preparation of the Corridor System Management Plan (CSMP) for Interstate 405 (I-405) is currently in progress. This CSMP is to replace the dated Transportation Concept Report, and scheduled to be completed in June 2010. During the interim, linkage to the I-405 Major Investment Study (MIS) prepared by Orange County Transportation Authority (OCTA) in February 2006 is provided for your reference. more on the MIS...