@FreewaysLA

Everything you always wanted to know about Los Angeles freeway history and engineering but were afraid to ask. We cover local state highways too.

 LA, Orange & Ventura Counties
facebook.com/groups/FreewaysLA/
Joined April 2018
  • Tweets5.2K
  • Following19
  • Followers10.4K
1954-July-01 - Facing easterly on newly constructed Colorado Fwy (then US-66 Alt/CA-11) at Club Rd OC. Annandale Golf Club at left; ramps on either side led to/from Colorado St (now Blvd) via Melrose Ave (DOH D7 Archives). 1/2
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In 1972, the Colorado Fwy was incorporated (and realigned) into Ventura Fwy (CA-134). The overcrossing, tunnels (off camera) and ramps in this picture are now ghosts (nonexistent). 2/2
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Freeways of Los Angeles retweeted
Caltrans District 7@CaltransDist7
Oct 7
🚧 PCH SOUTH OF DEER CREEK ROAD 🚧 In advance of an El Nino winter, crews are repairing this slope along State Route 1 in Ventura Co. with Rock Slope Protection.👇 Boulders are dropped to the beach & placed by an excavator. Expect intermittent traffic control 7AM > 3PM weekdays
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Freeways of Los Angeles retweeted
Art Wong
@ArtWong128
Oct 7
Agree! I love that LA skyline view when you drive in via the NB Harbor Freeway.
Lakers310 - Alex@Lakers_310
Oct 6
What's the best drive-up view of DTLA? Growing up and living in Inglewood for most of my life leads me to say that it's the driving up the 110 NB.
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1961-Dec-04 - Santa Monica Fwy (I-10) opening ceremony; view NE on eastbound lanes at East LA interchange. Gov. Edmund G. "Pat" Brown at podium addressing dignitaries (DOH D7 Archives). Note blank sign at right reserved for planned Pomona Fwy (CA-60), which was built in 1967.
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c. 1960 - Looking north over rendering of then proposed Huntington Beach Fwy "Orange Line" study. Proposed freeway would have been designated CA-39 but it never materialized. Garden Grove Fwy (CA-22) crosses diagonally at center (DOH D7 Archives image).
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1967 & 2026 - Facing west at Simi Valley Fwy construction, now Reagan Fwy (CA-118), in Santa Susana Pass area between Kuehner Dr and Rocky Peak Rd (DOH D7 Archives & Google Street View photos). Group from National Highway Week tours construction area in 1967.
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1958 - Looking north over Harbor Fwy (initially US-6-99/CA-11, then CA-11, now I-110) construction. Figueroa St at left; Athens Blvd at bottom (ACSC photo).
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Correction: (initially US-6/CA-11 . . . [Thanks to Pittsburgh Weber for the correction.]
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Freeways of Los Angeles retweeted
L.A. Dork@la_dorkout
Oct 5
In 2023, a storm blew off the right panel of the "Golden State Fwy" sign on the 134 East, revealing the pre-1965 route number (99) for the 5 Fwy. Caltrans overlayed the old route with a new "5" sign. Meant to be a stopgap, we're still stuck with "Golden Sta" 3.5 years later. 😏
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1935 - Looking west over Ramona Blvd (US-60-70-99) from Lord St OC in Boyle Heights. Ramona Blvd was Los Angeles's first proto-freeway, opening five years before the Arroyo Seco Pkwy. Ramona Blvd was upgraded to Ramona Pkwy/Fwy in 1945, including adding a median . . . 1/2
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barrier and a concrete lane in each direction. Renamed San Bernardino Fwy in 1954 and re-signed as I-10 in 1964. Realigned and widened to full interstate standards in 1972. Construction of Golden State Fwy (I-5) interchange at this location turned Ramona Blvd into a ghost. 2/2
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We've finally reached 10,000 "X" followers! Thank you all for your support. May all of your travels be pleasant and safe.
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1956-June-04 - Newly opened Harbor Fwy (then US-6/CA-11, now I-110) in Wilmington, approaching Anaheim St near Pacific Coast Hwy (then US-101 Alt, now CA-1). New ice plant seedlings in median (DOH D7 Archives photo).
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1957-March-14 - Looking northerly over San Diego Fwy (initially CA-7, now I-405) construction at Wilshire Blvd interchange (LA Examiner). Southern terminus of freeway spills onto Sepulveda Blvd (then CA-7) at lower right. Northern terminus of this segment is at Sunset Blvd. 1/2
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VA facilities at left; Los Angeles National Cemetery at upper right. Federal building would later be built in empty lot at right. Today, Getty Center is located in background Santa Monica Mountains. 2/2
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1953 - Newly constructed Newport Blvd (CA-55); looking north towards Costa Mesa near E. 15th St (DOH D7 Archives).
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Freeway Engineering 401 - A Study in Contrast of Interchange Types. See photo captions for details. 1/3
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Long Beach Fwy (I-710) at Willow St four quadrant cloverleaf interchange - All movements to/from local street are provided without left turns. Small loop radii limits on-ramp speed. To improve freeway operation, collector roads are typically added to separate weaving traffic.
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San Bernardino Fwy (I-10)/Orange Fwy (CA-57) fully directional four level interchange providing high speed movements. Ideally, connector radii are designed for 50 mph. Higher construction costs due to multiple structures and right of way required for interchange footprint.
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