State Route 242 (SR 242) is a three-mile (5 km)
state highway
A state highway, state road, or state route (and the equivalent provincial highway, provincial road, or provincial route) is usually a road that is either ''numbered'' or ''maintained'' by a sub-national state or province. A road numbered by a ...
in the
U.S. state of
California that links
Interstate 680 north of
Pleasant Hill to
State Route 4
Route 4, or Highway 4, may refer to several highways in the following countries:
International
* AH4, Asian Highway 4
* European route E04
* European route E004
* Cairo – Cape Town Highway
Albania
* SH-4 road in Albania from Durres to Kakav ...
in
Concord in
Contra Costa County
) of the San Francisco Bay
, subdivision_type = Country
, subdivision_name = United States
, subdivision_type1 = State
, subdivision_name1 = California
, subdivision_type2 ...
. Along with
Interstate 580,
State Route 24, Interstate 680 and State Route 4, it serves as the most direct route between the
San Francisco Bay Area and the
Sacramento–San Joaquin River Delta region.
In 2000, State Route 242 was widened to six through-traffic lanes for the entire route. Ramp metering is present at all onramps, and is used southbound in the morning and northbound in the evening. It was signed as part of State Route 24 until ca. 1987.
Route description
The route begins as a freeway at
Interstate 680 in
Concord. It then heads north, meeting Clayton Road, Concord Avenue, Grant Street, and Olivera Road before meeting its north end at
State Route 4
Route 4, or Highway 4, may refer to several highways in the following countries:
International
* AH4, Asian Highway 4
* European route E04
* European route E004
* Cairo – Cape Town Highway
Albania
* SH-4 road in Albania from Durres to Kakav ...
just west of the former
Concord Naval Weapons Station.
SR 242 is part of the
California Freeway and Expressway System,
and is part of the
National Highway System,
a network of highways that are considered essential to the country's economy, defense, and mobility by the
Federal Highway Administration.
Exit list
See also
*
References
External links
{{commonscat
Caltrans: Route 242 highway conditions
242
Year 242 ( CCXLII) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Gratus and Lepidus (or, less frequently, year 995 ''Ab urbe cond ...
242
Year 242 ( CCXLII) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Gratus and Lepidus (or, less frequently, year 995 ''Ab urbe cond ...
State Route 242
Concord, California