State Route 281
Click here for a key to the symbols used. An explanation of acronyms may be found at the bottom of the page.
From Route 29 south of Lakeport to Route 29 southerly of Konocti Bay and via
vicinity of Soda Bay.
Post 1964 Signage History
In 1970, Chapter 1473 defined Route 281 as “Route 29 south of
Route 29 southerly of Konocti Bay and via the vicinity of Soda Bay.”
Route 281 has 3 constructed miles that appear in the Caltrans Post Mile
as Post Mile LAK 14.0-17.0 on Soda Bay Road. Soda Bay Road northwest to CA 29
more or less is the implied connection of CA 281 beyond State Maintenance.
was improved to a state highway sometime back in the 1990s, as the
highways report discussed improvement of the existing county road to state
standards is planned for the distant future (PM 13.2 through PM
(Source: Gribblenation Blog "The Paper Highways north of San Francisco Bay; CA 12, CA 17, CA 37, CA 181, CA 251, and CA 281")
This routing is unconstructed from 3 mi NW of Route 29 south of
Lakeport to Konocti Bay (Konocti Bay Road), although Soda Bay Road and
Road 502 appear to cover the route.
The SAFETEA-LU act, enacted in August 2005 as the reauthorization of
provided the following expenditures on or near this route:
- High Priority Project #1085: Widen South Main St.-Soda Bay Rd.
(Route 281) between County Road 400A (mile marker 0. 0–mile marker
0.7) and County Road 502 (mile marker 0.0 and 0.9). $3,200,000.
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Overall statistics for Route 281:
- Total Length (1995): 3 miles traversable; 14 miles unconstructed.
- Average Daily Traffic (1992): 3,850.
- Mileage Classification: Rural: 17; Sm. Urban: 0; Urbanized: 0.
- Previous Federal Aid Mileage: FAS: 3 mi.
- Functional Classification: Collector: 3 mi.
- Counties Traversed: Lake.
Pre-1964 Legislative Route
In 1959, Chapter 1062 defined LRN 281 as “[LRN 2] near the south
end of San
Diego Bay to east of the United States Naval Auxiliary Air Station, Brown
In 1963, Chapter 1698 changed the east end to LRN 282, but that change
overtaken by the Chapter 385 "great renumbering".
This is Route 117, currently numbered as Route 905 from I-5 near the S
of San Diego Bay to E of Brown Field.
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