Former State Route 106
Click here for a key to the symbols used. An explanation of acronyms may be found at the bottom of the page.
Post 1964 Signage History
As defined in 1963, Route 106 ran from Route 38 near Redlands to
Route 30 near Highland.
In 1965, Chapter 1371 transferred the portion from Route 38 to Route 10
to Route 38, thus beginning the routing at Route 10.
In 1972, the entire routing for Route 106 was transferred to Route 30 by
Pre 1964 Signage History
The pre-1972 routing of Route 106 was part of LRN 190, defined in 1933.
Route 106 was not defined as part of the initial state signage of routes
in 1934. It is unclear what (if any) route was signed as Route 106 between
1934 and 1964.
In April 1958, the designation I-106 was proposed for the route from the
eastern terminus of the Santa Monica Freeway (I-10) with the Santa Ana
Freeway (I-5) [i.e., the current US 101/I-5/I-10 junction) to the western
terminus of the San Bernardino Freeway (I-10) with the Golden State
Freeway (I-5). This designation was not approved (although AASHTO did seem
to like the loop idea) infavor of distinct designations for the US 101
portion (I-105) and the I-10 portion (I-110). In 1968, both the I-105 and
I-110 designations were dropped, with the segments going back to US 101
and I-10, respectively.
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Pre-1964 Legislative Route
In 1933, Chapter 767 defined the segment from "[LRN 14] near Hercules to
the Walnut Creek-Antioch Road" as a state highway. In 1935, this was
codified as LRN 106 in the highway code with the following routing:
[LRN 14] near Hercules to [LRN 75]
In 1957, Chapter 36 changed LRN 14 to LRN 7, and clarified the terminus
as being "north of Concord"
This is the route that runs from US 40 (now I-80) near Hercules to the
Route 4/Route 24 junction N of Concord. This is signed as part of Route 4.
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 Note that ISTEA repealed the previous Federal-Aid System, effective in 1992, and established the functional classification system for all public roads.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