Click here for a key to the symbols used. An explanation of acronyms may be found at the bottom of the page.
(a) Route 55 is from the south end of Newport Beach Channel Bridge to Route 91 in Santa Ana Canyon.
(b) The relinquished former portions of Route 55 within the City of Newport Beach are not state highways and are not eligible for adoption under Section 81. For the relinquished former portions of Route 55, the City of Newport Beach shall maintain within its jurisdiction signs directing motorists to the continuation of Route 55. The City of Newport Beach shall ensure the continuity of traffic flow on the relinquished former portions of Route 1 within its jurisdiction, including, but not limited to, any traffic signal progression.
In 1963, this route was defined as "From Newport Beach to Route 91 in Santa Ana Canyon"
On March 17, 1954, the California Highway Commission adopted Route 55 as a Freeway. Route 55 begins at the Pacific Coast Highway, Route 1, near the city of Newport Beach and runs north to Route 91. This section of Route 55 was brought into the Freeway & Expressway System in 1959 and it is part of the National Highway System (NHS). On October 31, 1962, a Freeway Agreement with the county of Orange was executed for this segment of Route 55. A 1965 planning map shows it as freeway from Newport Beach to Route 91, with the portion S of Route 22 shown as "no adopted route".
In December 1966, construction was completed on the portion between
Bristol Street/Palisades Road in Costa Mesa and Warner Avenue in Santa
Ana/Tustin was completed, including the future interchange with I-405.
This completed Route 55 between Bristol and Route 91.
(Source: CHPW, Jan/Feb 1967)
In 2009, AB 344 (Chapter 238, 10/11/2009) authorized relinquishment of the portion in Newport Beach by adding the following to the legislative definition:
(b) The commission may relinquish to the City of Newport Beach the portion of Route 55 that is located between Finley Avenue and the Newport channel bridge, within the city limits of the City of Newport Beach, upon terms and conditions the commission finds to be in the best interests of the state.
(c) A relinquishment under this section shall become effective immediately following the county recorder's recordation of the relinquishment resolution containing the commission's approval of the terms and conditions of the relinquishment.
(d) On and after the effective date of the relinquishment, both of the following shall occur: (1) The portion of Route 55 relinquished under this section shall cease to be a state highway. (2) The portion of Route 55 relinquished under this section shall be ineligible for future adoption under Section 81.
(e) The City of Newport Beach shall ensure the continuity of traffic flow on the relinquished portions of Route 55, including, but not limited to, any traffic signal progression.
(f) For those portions of Route 55 that are relinquished, the City of Newport Beach shall maintain within its jurisdiction signs directing motorists to the continuation of Route 55.
In May 2013, the CTC relinquished right of way in the city of Newport Beach on Route 55 between Finley Avenue and the Newport channel bridge, consisting of highway right of way deleted by legislative enactment. Authorized by Chapter 238, Statutes of 2009, which amended Section 355 of the Streets and Highways Code.
In 2014, AB 2752 (Chapter 345, 9/15/2014) changed the definition to reflect the relinquishment within Newport Beach: "Route 55 is from Newport Beach to Route 91 in Santa Ana Canyon". It also changed the paragraph relating to the relinquished portion to the past tense.
In 1934, Route 55 was signed along the route from Jct. Route 3 (US 101A, later Route 1) at Newport Beach to Jct. Route 18 (US 91, later Route 91) near Olive. This was LRN 43 (defined in 1931). It ran N along Newport Blvd from Route 3 (LRN 60, later US-101A; now Route 1) turning N onto Tustin Avenue near Santa Ana and continuing N to Route 18 (LRN 43, later US 91, now Route 91).
In 2005, Northbound Route 55 had its control city changed from "Riverside" to "Anaheim/Riverside".
Constructed to freeway standards between 3 mi S of Route 73 and Route 91. The first segment opened in 1962. The last segment opened in 1990, when the route was extended from I-405 to 19th St. Carpool lanes were added in 1999.
In June 2007, the OCTA outlined a 5-year plan for the use of the 2nd Measure M funds that included adding lanes on Route 91 between I-5 and Route 57 and between Route 55 and the Riverside County border; adding lanes on I-405 between I-605 and Route 55; a new NB lane on Route 57 between Orangewood Avenue and Lambert Road.
In May 2013, the CTC authorized relinquishment of right of way in the city of Newport Beach on Route 55 between Finley Avenue and the Newport channel bridge (~ ORA 0.17 to ORA 0.185), consisting of highway right of way deleted by legislative enactment. Authorized by Chapter 238, Statutes of 2009, which amended Section 355 of the Streets and Highways Code.
Freeway End Improvements in Costa Mesa (~ ORA 2.032)
In May 2007, the OCTA approved a 14-month study to examine how to relieve congestion at the end of the Costa Mesa Freeway (Route 55) in Costa Mesa. The contract calls for LSA Associates to receive up to $275,000 to develop concepts for improving access to and from the route, which currently ends at 19th Street (~ ORA 2.032). State plans for the freeway include an extension from 19th Street to the vicinity of Industrial Way near the city limits of Newport Beach. The study will explore alternatives to the extension and ways to improve traffic flow in the area. Slides related to this study were presented in May 2008. There were a number of alternatives presented: (a) no-build, (b) the current easterly freeway extension plan, (c) a transportation management system alternative, (d) improving conventional highways, (e) "vertical terminal enhancement", (f) an elevated freeway along Newport Bl, (g) a cut-and-cover freeway along Newport Bl. The goal is to have the study completed by Fall 2008.
In February 2010, it was reported that Costa Mesa
officials are beginning a project study aimed at relieving gridlock where
Route 55 ends on Newport Boulevard. The report will examine various
proposed solutions and look at the project’s effect on local
businesses and residents, according to the Daily Pilot. Costa Mesa took on
the expansion project more than a year ago.
(Source: "Traffic jam goes to study", Daily Pilot, 2/18/2010)
The 2018 STIP, approved at the CTC March 2018 meeting, appears to allocate $80M in Construction funding in FY21-22 for PPNO 3470, Central Corridor Improvements, Rt 405-Rt 5 (SHOPP)
In March 2020, the CTC approved the 2020 STIP, which
shifts the programmed funding of $80M for PPNO 3470 "Corridor Imprvmnts,
Rt 405-Rt 5 (SHOPP)(SB1)" from FY21-22 to FY20-21.
(Source: March 2020 CTC Agenda, Item 4.7, 2020 STIP Adopted 3/25/2020)
In December 2020, it was reported that OCTA has been
awarded $140 million in competitive state transportation funding to
support the Route 55 Improvement Project between I-5 and I-405 in central
Orange County. The funding comes from the California Transportation
Commission (CTC), which awarded $115 million from the SB1 Trade Corridor
Enhancement Program and $25 million from the SB1 Local Partnership
Competitive Program. The Route 55 project will add a regular lane and a
carpool lane in each direction between I-5 near Santa Ana and Tustin and
I-405 near Irvine and Costa Mesa. It will also add auxiliary lanes to help
traffic smoothly enter and exit the freeway. The improvements will
increase access to job centers, healthcare and educational facilities,
South Coast Plaza and John Wayne Airport, among other important
destinations for the region. The project is estimated to cost $474 million
with additional funds coming from OC Go, and other state and federal
funding. It has completed the design phase and construction is expected to
begin in 2022. Improvements are expected to be finished in 2026.
(Source: OCTA Blog, 12/10/2020)
In June 2006, the CTC received the Final EIR on a project to modify the Alton Ave overcrossing (~ ORA R7.51) and add High Occupancy Vehicle (HOV) drop ramps in the cities of Santa Ana and Irvine. The total estimated project cost, escalated to the construction year, is $92.6 million. The project is being divided into two construction phases: Phase I will be the overcrossing, and Phase II will be the HOV drop ramps. Phase I is scheduled to begin construction in Fiscal Year 2008-09. This project is being funded by the Measure M Regional Improvement Program, Measure M Growth Management Area Program, local dollars from the cities of Santa Ana and Irvine, and other local sources. Route 55 creates a boundary between the cities of Santa Ana and Irvine. Interchanges at MacArthur Boulevard and Dyer Road exist that link these two cities. Growth trends in both cities have generated traffic congestion and have created the need for additional circulation improvements. In 1982, the Irvine Business Complex identified the need for a four-lane overcrossing connecting Alton Avenue on each side of Route 55, and in April 1986, the city of Santa Ana identified the Alton overcrossing as a priority project. The proposed project would entail construction of a four-lane overcrossing connecting Alton Avenue on each side of Route 55. This addition would add high-occupancy-vehicle (HOV) direct access drop ramps to and from Route 55 to the Alton Avenue overcrossing. The purpose of the project is to provide a transportation link across Route 55, support circulation between the cities of Santa Ana and Irvine, relieve local traffic congestion, support planned development and growth in the cities of Irvine and Santa Ana, and improve HOV access as indicated by the Orange County Transportation Authority (OCTA). The 2002 traffic studies done in the project vicinity show that congestion is anticipated to increase as urbanization and growth continues. By 2025, 13 of 16 local street intersections studied (cities of Irvine and Santa Ana traffic models) showed that they would operate at an unacceptable Level of Service (LOS) E or F. HOV access to and from Route 55 is currently limited to Dyer Road and MacArthur Boulevard. The 2002 traffic studies also showed that traffic volumes resulted in congestion between the Dyer Road and MacArthur Boulevard interchanges and that weaving sections to the mainline resulted in a LOS of F. Construction of HOV direct access ramps at Alton Road would improve conditions at Dyer Road and MacArthur Boulevard. This would reduce HOV traffic from those interchanges and distribute it onto Alton Avenue. This would improve surface street operations as well as the Route 55 mainline operations. Alton Avenue is not continuous between the cities of Santa Ana and Irvine nor does it currently cross or connect to Route 55. The preferred selected alternative is the Alton Ave HOV direct access ramps. In order to execute this project, Commission approval is required for the new public road connection to Route 55. The additional HOV access was identified by OCTA in the 1987 Orange County Transitway Concept Design Study, the 1996 Caltrans Route Concept Report, the 2004 State Transportation Improvement Plan, the 2004 Southern California Association of Governments (SCAG) Regional Transportation Improvement Plan (RTIP), and the 2004 SCAG Regional Transportation Plan (RTP).
In March 2011, the CTC approved constructing an auxiliary lane between
interchanges from Dyer Road off ramp to the Edinger Avenue on ramp to
address the weaving operations of vehicles and increase the level of
(Image source: OCTA SR-55 April 2017 Public Meeting Exhibits)
In May 2017, it was reported that Southern California
transit agencies are evaluating options for improving Route 55 in both
directions between I-405 and I-5, through the cities of Santa Ana, Irvine
and Tustin. The project is in the environmental phase, and the original
Draft Environmental Document was made available to the public in November
2015. As a result of comments received during the public circulation of
the Draft Environmental Document, an additional alternative was included
for study – Alternative 3 Modified. Alternative 3M includes new
carpool, general-purpose and auxiliary lanes in each direction. A
supplemental Draft Environmental Document focusing on the analysis of
Alternative 3M was prepared and made available in April 2017 for public
comment. The comment period has closed. Once a preferred alternative is
approved, the project will move into the design phase, which is expected
to begin as early as 2018. Construction could begin in 2021 and is
expected to take approximately four years.
(Source: OCTA Blog, 5/17/2017)
In October 2016, the CTC amended the SHOPP as follows: 12-Ora-55 R8.0/R9.2 | Route 55 In the cities of Santa Ana and Tustin, from Dyer Road on ramp to Edinger Avenue off ramp. Construct northbound auxiliary lane. The project is proposed to be combined with a mobility OCTA Measure M improvement project 12-0J340 on Route 55 from Route 405 to Route 5. The final environmental document for 12-0J340 will incorporate the north bound auxilary lane from 12-0G950. The environmental document will clear the auxilary lane as an indpendent project in the event 12-0J340 does not proceed forward. As a result, of creating one single environmental document there is a reduction in resources to complete PA&ED. However, there is an increase in right of way support to address condemnation activities that were not accounted for whle programming the project. These changes result in a net zero cost change in the project.
In October 2017, the CTC approved for future
consideration of funding a project that proposes to add additional lanes
on Route 55, between the cities of Santa Ana and Tustin in Orange County
(12-Ora-55, PM 6.4/10.3). This project includes a second HOV lane and a
general purpose lane in both directions. Auxiliary lanes at different
locations are also proposed. The project is fully funded and programmed in
the 2016 SHOPP for $46.8 million. The total cost of the project is
estimated at $256.5 million and estimated to begin construction in Fiscal
Year 2019-20. The scope, as described for the preferred alternative, is
consistent with the project scope programmed by the Commission in the 2016
(Source: CTC October 2017 Agenda Item 2.2c.(1))
The following project was included in the final adopted 2018 SHOPP in March 2018: PPNO 3483. 12-Orange-55 R8.0/R9.2. Route 55 In the cities of Santa Ana and Tustin, from Dyer Road onramp to Edinger Avenue offramp. Construct northbound auxiliary lane. Begin Con: 12/23/2020. Total Project Cost: $46,800K.
In December 2019, the CTC had on its agenda an
allocation of $24,500,000 for the Right of Way capital phase for PPNO 3483
Proj ID 1215000045 EA 0G950 on Route 55, in Orange County (12-Ora-55
R8.0/R9.2). The project is located in the cities of Santa Ana and Tustin
in Orange County. The project proposes to construct an auxiliary lane on
northbound Route 55 between the Dyer Road on-ramp and Edinger Avenue
off-ramp. The project scope requires acquisition from 7 parcels, including
fee acquisition, permanent easements, and temporary construction
easements, as well as relocation assistance and utility relocation
coordination. Concurrent with the Department’s SHOPP project, Orange
County Transportation Authority (OCTA) is implementing a widening project
on Route 55 from I-405 to I-5 adding one high occupancy lane, one general
purpose lane, and auxiliary lanes at several locations. Seven (7) out of a
total of thirty-one (31) right of way requirements for these two projects
overlap between the Dyer Road on-ramp and Edinger Avenue off-ramp. To
limit the inconveniences of property owners and utility companies, the
Department requested through a Cooperative Agreement that OCTA deliver the
right of way needed for the SHOPP project simultaneously with their
widening project. The Department provided the right of way requirements
and mapping for the acquisition and utility relocations associated with
the SHOPP project. Combining these efforts eliminates duplicative work and
creates efficiencies. The Right of Way capital estimate for the SHOPP
project is attributed to complex right of way acquisitions involving
commercial industrial properties including motels, retail and light
manufacturing properties, and utility relocation impacting business
parking spaces and buildings. The Right of Way capital estimate is
(Source: December 2019 CTC Agenda, Agenda Item 2.5b.(3))
In May 2020, it was reported that the SR-55
Improvement Project is expected to break ground in 2021, and will
reduce travel times between I-405 and I-5 through one of the most highly
congested stretches of freeway in the county. Funded by OC Go (also known
as Measure M), the $411 million project is expected to be completed in
2024 and will add one regular lane and one carpool lane in each direction
of Route 55 through the cities of Irvine, Santa Ana and Tustin, along with
auxiliary lanes between interchanges. The project’s final design was
submitted to Caltrans in late April 2020, and right-of-way, utility
relocation coordination and public outreach activities are ongoing.
(Source: OCTA Blog, 5/20/2020)
In August 2020, the CTC approved for future consideration of funding a project
located on Route 55 in Orange County on a 7.5-mile corridor through the
cities of Tustin, Santa Ana Orange, and Anaheim (12-Ora-55, PM
10.4/R17.9) (EA 0K720). The Department proposes to reduce congestion and
improve operational efficiency on Route 55 between I-5 and Route 91 by
adding general purpose and auxiliary lanes. The project is currently
funded through Project Approval and Environmental Document phase for
$5,000,000 in federal funds through the Surface Transportation Block Grant
Program. Total project cost is estimated to be $148,162,000. Construction
is estimated to begin in 2033-35.
(Source: August 2020 CTC Agenda, Agenda Item 2.2c.(1))
In November 2010, the CTC authorized relinquishment of right of way in the city of Orange along Route 55 at Chapman Avenue (~ ORA 13.672), consisting of collateral facilities.
In December 2015, it was reported that preliminary plans are in progress
to build a new interchange at Route 55 and Meats Avenue (~ ORA
16.141), near the Village at Orange. Environmental documents are being
prepared for an eventual study. However, there isn’t any money
budgeted for this project, so it’s unclear when it might get built.
The surrounding neighborhoods will be notified if the project is finally
funded and construction is actually planned.
(Source: OC Register "On The Road", 12/10/2015)
In August 2020, the CTC approved for future
consideration of funding a project is located on Route 91 in Orange County
on a six-mile corridor through the cities of Anaheim, Fullerton, Orange,
and Placentia. The Department proposes to improve capacity and reduce
congestion, as well as reduce weaving and merging between successive ramps
at several interchanges. The proposed improvements would include the Route 91 freeway mainline widening, primarily in the eastbound direction,
and modifications to various interchanges, connectors, ramps, and
intersections on Route 91, Route 57, and Route 55. This project is
currently funded through Project Approval and Environmental Document and
Plans, Specifications, and Estimates for $28,400,000 in federal funds
through the Surface Transportation Block Grant Program and local funds.
Total project cost is estimated to be $352,400,000. Construction is
estimated to begin in 2023-24.
(Source: August 2020 CTC Agenda, Agenda Item 2.2c.(1))
Route 55 from Costa Mesa to Route 91 (~ ORA 2.032 to ORA R17.61) is officially named the "Costa Mesa Freeway". It was named by Assembly Concurrent Resolution No. 177, Chapter 86, in 1976.
Before 1976, this route was named the "Newport Freeway" (~ ORA 2.032 to ORA R17.61) . Newport refers to the community of Newport, which was named in 1892. The McFadden brothers, who had come from Delaware, started a lumber business in that community in 1873, named their steamer Newport in 1876, and had the townsite of Newport platted in 1892.
The portion of Route 55 from 19th Street (ORA
2.021) to MacArthur Boulevard (ORA R6.985) in the County of Orange is
named the Costa Mesa Fire Captain Michael Kreza Memorial Highway.
It was named in memory of Costa Mesa Fire & Rescue Captain Michael
Kreza, who passed way untimely at 44 years of age, on November 5, 2018.
Fire Captain Michael Kreza was a distinguished California firefighter and
much-loved family man, whose character, integrity, and singular commitment
earned him the respect and admiration of his fellow firefighters, the
members of the greater Costa Mesa community, and the countless other
individuals whose lives he touched. He was the son of a police officer,
grew up in the City of Irvine and chose to follow in his father’s
footsteps by engaging his passion in a career protecting the public, and
enrolled in fire science classes at Santa Ana College after high school,
which inaugurated his commitment to the firefighting profession as a Paid
Call Firefighter with the Orange County Fire Authorityd. Following his
graduation from the Crafton Hills Fire Academy in 1993, Michael Kreza
sought to further advance his emergency responder skills, and while
working in the Hoag Hospital Irvine Emergency Department, he was accepted
to the Paramedic Program at Saddleback College, from which he graduated in
1997. Having subsequently gained experience as an Emergency Department
Technician in Seattle, Washington, and as a paramedic in Las Vegas,
Nevada, Michael Kreza returned to California, where he worked as a
firefighter for the Big Bear Fire Department before being hired in 2000 by
the Costa Mesa Fire & Rescue Department. Throughout his 18-year tenure
with Costa Mesa Fire & Rescue, Fire Captain Kreza brought his tireless
dedication and boundless zeal to the force through his participation as a
wholly engaged member of the department’s close-knit firefighting
community, within which he shared his experience and leadership by, among
other things, serving as a member of the Tools and Equipment Committee,
managing the charity fund, and participating in the Honor Guard. As
Michael Kreza rose to the rank of Fire Captain and took his well-merited
position as an esteemed veteran of the Costa Mesa Fire & Rescue
Department, Fire Captain Kreza also served as an ever-inspiring role
model, pursued his love of being an accomplished Ironman athlete, and he
earned a bachelor’s degree from Columbia Southern University. He
died, while off-duty and training for an Ironman marathon, when he was
struck and critically injured in a crash involving a suspected DUI driver
while cycling on Alicia Parkway near Via Burgos in Mission Viejo. He
suffered apparent trauma to the head and body and was rushed to a
hospital. He remained in critical condition until he died. Named by Senate
Concurrent Resolution 21 (SCR 21), Resolution Chapter 139, 9/3/19.
(Source: Death information from KTLA, 11/5/2018)
The southbound portion of Route 55 between Chapman Avenue and Katella Avenue
(~ ORA 13.657 to ORA 15.201), in Orange County, is officially named the "Paul
Johnson Highway". This segment was named in honor of Paul Johnson,
who began his broadcasting career in the 1950s at a rock and roll station
in Grand Forks, North Dakota. Paul Johnson interrupted his career to serve
in the United States Army in 1956 and 1957; and after his military
service, Paul Johnson returned to broadcasting and relocated to Los
Angeles. Paul Johnson appeared in the 1969 motion picture "Paint Your
Wagon" and was one of 60 men that sang the musical score for the movie.
Paul Johnson sang bass and appeared in several opera productions and in
numerous television commercials. Johnson began traffic reporting in 1982
on the radio at several Los Angeles stations, including, KNX, KZLA, KACE,
KXEZ, and KSRF. Since August 1988, Paul Johnson had been a part of KNBC's
on-air team. During his tenure with KNBC, Paul Johnson served as a weather
and traffic report anchor and contributor. Johnson delivered traffic
information daily to millions of southern Californians for 28 years, and
ended nearly all of his reports urging viewers to buckle up and be safe on
the road. Named by Assembly Concurrant Resolution (ACR) 179, 9/14/2010,
Resolution Chapter 160.
(Source: Image snarfed from OC Register, 2/24/2011)
The Route 55/Route 91
interchange (~ ORA R17.61) is named the "Mark Denis Melbourne Memorial
Interchange". Mark Denis Melbourne was a fixture on southern
California radio, giving traffic reports for four decades. He was regarded
as one of the most respected broadcasters in southern California and was
used as the "image voice" for KFI 640 AM. He was also a part-time
communications instructor at the University of Southern California, and
was regarded as having loved to share his knowledge of broadcasting with
others. He advocated reporting traffic without panic and with caring, and
was willing to help frustrated drivers avoid bottlenecks. He was also the
unidentified voice on the monorail that ferries visitors around
Disneyland. He died of a fatal illness in the year 2000 in his home in
Anaheim Hills at the early age of 59. Named by Senate Concurrent
Resolution 50, Chapter 104, on August 8, 2002.
(Image source: The Southern Californian)
Commuter lanes have been constructed between Baker Street in Costa Mesa and Route 91 in Anaheim. These lanes opened in November 1985, require two or more occupants, and are always in operation.
The August 2005 CTC agenda had an item regarding a negative environmental impact report regarding modification of an overcrossing and the addition of High Occupancy Vehicle (HOV) drop ramps in Santa Ana and Irvine (DEIR).
The following segments are designated as Classified Landscaped Freeway:
|County||Route||Starting PM||Ending PM|
[SHC 253.1] Entire route. Added to the Freeway and Expressway system in 1959.
Overall statistics for Route 55:
The route that become LRN 55 was first defined in the 1919 Third Bond Act as running from San Francisco to Santa Cruz. In 1935, this was codified into the state highway code as:
"The Skyline Boulevard from San Francisco to [LRN 5]"
This definition remained unchanged until the 1963 renumbering. The routing ran along Skyline Blvd from approximately Route 1, LRN 56 in San Francisco to LRN 5 (Route 17). It was originally signed as Route 5, and was renumbered as Route 35 to avoid the conflict with I-5.
Acronyms and Explanations:
Route 54 Route 56
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