Post 1964 Legislative Route 257
Click here for a key to the symbols used. An explanation of acronyms may be found at the bottom of the page.
FromRoute 34 to Route 101 near Ventura.
Post 1964 Signage History
In 1965, Chapter 1372 defined Route 257 as "Route 34 to Route 101 near
Scott Parker on AARoads noted: There was neither any adopted nor existing
alignment for unbuilt Route 257; its general E-W section was well south of
5th street extension that runs along the Metrolink tracks as part of Route 34.
From the draft maps of the time, Route 257 terminated at the then-future
Route 34 alignment a couple of miles north of Route 1 north of Point Mugu,
Route 1's alignment near where the through route currently veers north
Rice Avenue, continuing WNW from there to Port Hueneme before turning to
parallel the coast before terminating at US 101 east of central Ventura
the Route 126 and Route 33 interchanges. Clearly Route 257 was a
"developmental" road, intended to serve the housing developments south of
Camarillo as well as the coastal recreational area between Hueneme and
The likelihood of that road ever being built are very, very slim and none.
(Source: Scott Parker on AARoads, "Re: CA 34", 11/9/2019)
Pre 1964 Signage History
This route was not defined in the state highway system before 1963.
This routing is unconstructed. This routing was planned as freeway; it was never upgraded. The traversable route is 5th Street and
Blvd west of Route 1. It is a circuitous route around Plaza Park in
Caltrans has no plans to adopt this route.
[SHC 253.1] Entire route. Added to the Freeway and Expressway system in
Overall statistics for Route 257:
- Total Length (1995): 20 miles unconstructed.
- Mileage Classification: Rural: 10; Sm. Urban: 0; Urbanized: 10.
- Counties Traversed: Ventura.
Pre-1964 Legislative Route
In 1959, Chapter 1062 defined LRN 257 as “[LRN 69] near West Grand
Oakland to [LRN 69] near Albany.” This is part of present-day Route 61.
Acronyms and Explanations:
- "LRN" refers to the Pre-1964 Legislative Route Number.
"US" refers to a US Shield signed route.
"I" refers to an Eisenhower Interstate signed route.
"Route" usually indicates a state shield signed route, but said route may be signed as US or I.
- Previous Federal Aid (pre-1992) categories:
Federal Aid Interstate (FAI); Federal Aid Primary (FAP);
Federal Aid Urban (FAU); and Federal Aid Secondary (FAS).
Current Functional Classifications (used for aid purposes):
Principal Arterial (PA); Minor Arterial (MA);
Collector (Col); Rural Minor Collector/Local Road (RMC/LR). Note that ISTEA repealed the previous Federal-Aid System, effective in 1992, and established the functional classification system for all public roads.
- Other frequently used terms: California Transportation Commission (Commission or CTC), California Department of Transportation (Department or Caltrans), Regional Improvement Program (RIP), Interregional Improvement Program (IIP), State Transportation Improvement Program (STIP), State Highway Operation and Protection Program (SHOPP), Traffic Congestion Relief Program (TCRP), Clean Air and Transportation Improvement Act of 1990 (Proposition 116), High Speed Passenger Train Bond Program (Proposition 1A), Highway Safety, Traffic Reduction, Air Quality, and Port Security Bond Act of 2006 (Proposition 1B), Corridor Mobility Improvement Account (CMIA), State Route 99 Bond Program (RTE or SR 99), Local Bridge Seismic Retrofit Account (LBSRA), Trade Corridors Improvement Fund (TCIF), Highway-Railroad Crossing Safety Account (HRCSA), State-Local Partnership Program (SLPP), Environmental Phase (PA&ED), Design Phase (PS&E), Right of Way (R/W), Fiscal Year (FY), Active Transportation Program (ATP), Trade Corridor Enhancement Program (TCEP), Local Partnership Program (LPP), Local Streets and Roads Program (LSRP), Solutions for Congested Corridors Program (SCCP).
© 1996-2020 Daniel P. Faigin.
Maintained by: Daniel P. Faigin