California State Route 242

State Route 242

(CS&HC Section 542)

Length:

3.58 mi^[1] (5.76 km)

Major
junctions:

I-680

CC 0.00

CA-4

CC 3.58

Major cities:

California State Routes
< SR 241		SR 243 >
Unconstructed - Deleted - Freeway - Scenic

State Route 242 is a short three-mile connector route that links Interstate 680 north of Pleasant Hill to State Route 4 in Concord. In 2000, State Route 242 was widended to six through-traffic lanes for the entire route. Ramp metering is present at all onramps, but is not used at this time. It was signed as part of State Route 24 until ca. 1987. Currently, 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 River Delta region of Northern California.

[edit] Control cities

Northbound: Pittsburg

Southbound: Oakland

Mileposts derived from^[2] and exit numbers derived from.^[3]

Mile	#	Destinations	Notes
Southbound traffic defaults onto I-680 south
CC R0.00	1A	Interstate 680 South - Oakland; San Jose	Southbound left exit and northbound entrance
CC R0.00	1B	Gregory Lane; Contra Costa Boulevard; Monument Boulevard	Southbound exit only; northbound accessible via the I-680 northbound entrance from Monument Blvd
CC R0.87	1	Clayton Road; Market Street; Willow Pass Road	Northbound exit and southbound entrance
CC R1.47	1C	Concord Avenue	No northbound exit
CC R2.15	2	Grant Street; Solano Way
CC R2.79	3A	Olivera Road; Hillsborough Drive	Northbound exit and southbound entrance
CC R3.59 CC R4.07	3B	State Route 4 west - Richmond; Hercules; Port Chicago Highway	Northbound exit and southbound entrance
CC R3.59 CC R4.07	3C	State Route 4 east - Stockton	Northbound left exit and southbound entrance
Northbound traffic defaults onto SR 4 east