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Interstate 605 California

 

Routing

Interstate 605, the San Gabriel River Freeway, is a well-traveled route serving north-south traffic in the communities east of the city of Los Angeles. This freeway is best known for its non-identity: all overhead signs for Interstate 605 are devoid of control cities and read "Thru Traffic," even though it serves many cities on its route between Interstate 405 in Long Beach and Interstate 210 in Duarte. It is eight to ten lanes wide for its entire length.

Future Aspirations

Controversial plans call for a three-mile extension of Interstate 605 south from Interstate 405/California 22 in Long Beach to California 1 in Seal Beach. At times proposed as a freeway and a tollway, it was removed from consideration due to local opposition. However, the extension remains as a legislatively proposed route.

History

Interstate 605 opened in stages between May 1964 and January 1971.

Highway Guides

Southern Terminus - Interstate 405 - Long Beach, California
Perspective from California 22 east
Eastbound California 22 at Junction Northbound Interstate 605. Northbound Interstate 605 leads to northbound Interstate 405, while eastbound California 22 leads to southbound Interstate 405. Photo taken by Andy Field/Casey Cooper/Joel Windmiller/Mark Furqueron (7/21/01).
Here, eastbound California 22 merges with southbound Interstate 405. The ramp to the right, which leads to northbound Interstates 405 and 605, marks the southern terminus of Interstate 605. Photo taken by Andy Field/Casey Cooper/Joel Windmiller/Mark Furqueron (7/21/01).
Perspective from Northbound Interstate 605
This picture shows the first half mile of northbound Interstate 605 as it heads north from California 22 over Interstate 405/San Diego Freeway. For this short distance, Interstate 605 is a narrow freeway that does not meet Interstate standards; it may be better to characterize this section as an extended on-ramp to Interstate 605. Photo taken by Andy Field/Casey Cooper/Joel Windmiller/Mark Furqueron (7/21/01).
After passing through the short narrow section, Interstate 605 assumes a modern quality, including concrete pavement and shoulders. This photo shows the approach to the exit from northbound Interstate 605 to Interstate 405 northbound. Photo taken by Andy Field/Casey Cooper/Joel Windmiller/Mark Furqueron (7/21/01).
Northbound Interstate 605 at Junction Interstate 405. As noted on the perspective from eastbound California 22, there is no access from Interstate 605 northbound to Interstate 405 southbound; traffic must use California 22 eastbound for that connection. Photo taken by Andy Field/Casey Cooper/Joel Windmiller/Mark Furqueron (7/21/01).
The through lanes of northbound Interstate 605 carries traffic originating from California 22 and Long Beach. After the Interstate 405 exit, those lanes merge with traffic from Interstate 405 at this point. From here, Interstate 605 takes the eight to ten lane freeway standard. Photo taken by Andy Field/Casey Cooper/Joel Windmiller/Mark Furqueron (7/21/01).
Perspective from Interstate 405 North
Northbound Interstate 405 mileage sign for Seal Beach Boulevard, one and one-quarter miles; Westbound California 22/7th Street/Long Beach, two miles; and northbound Interstate 605, two and three-quarters miles. Photo taken by AARoads (11/25/04).
Another mileage sign after the Seal Beach Boulevard exit along northbound Interstate 405 approaching Westbound California 22 and Northbound Interstate 605. Photo taken by AARoads (11/25/04).
Northbound Interstate 405 approaching Westbound California 22 and Northbound Interstate 605. Motorists heading for Long Beach should use the California 22 exit. Northbound Interstate 605 connects to westbound Interstate 105, which provides an alternative to busy Interstate 405 to reach Los Angeles International Airport. Photo taken by AARoads (11/25/04).
Northbound Interstate 405 at Junction westbound California 22/7th Street. California 22 continues as a freeway for a about a mile, but it quickly downgrades to a surface street after passing through the Studebaker Road interchange. California 22 ends at its intersection with California 1/Pacific Coast Highway near California State University at Long Beach. Photo taken by AARoads (11/25/04).
Northbound Interstate 405 approaching Northbound Interstate 605 after the California 22 exit. Photo taken by AARoads (11/25/04).
Northbound Interstate 405 at Junction Northbound Interstate 605. This marks the southern terminus of Interstate 605; if the extension south to Seal Beach is constructed, then the southern terminus would be extended by a few miles. Photo taken by AARoads (11/25/04).
Perspective from Interstate 405 South
Along southbound Interstate 405, access is afforded to Interstate 605 northbound and California 22 westbound. This mileage sign indicates that the next exit is Palo Verde Avenue and Studebaker Road followed by Interstate 605. Photo taken by Andy Field/Pete Sison (08/03).
Southbound Interstate 405/San Diego Freeway at Palo Verde Avenue. The next exit is Studebaker Road, followed by Interstate 605. All three exits provide access to the eastern portion of Long Beach (including Belmont Shores). Much of the City of Long Beach is located away from the freeway and obscured by industry; however, the city itself is beautiful, with a large harbor and several tourist attractions including the Queen Mary and a ferry terminal. Photo taken by Andy Field/Pete Sison (08/03).
Southbound Interstate 405 approaching Studebaker Road, one mile, followed by Interstate 605 and California 22, one and one-half miles. Photo taken by Andy Field/Pete Sison (08/03).
The next exit along Southbound Interstate 405 is for Studebaker Road. The Interstate 605 exit is one mile from this sign based on the previous mileage sign; however, the one mile advance sign for Interstate 605 is located a bit further ahead on southbound Interstate 405. Meanwhile, Studebaker Road southbound connects with California 22 westbound and California 1/Pacific Coast Highway. Photo taken by Andy Field/Pete Sison (08/03).
Shortly after the last exit is this advance sign for Interstate 605 along southbound Interstate 405. Photo taken by Andy Field/Pete Sison (08/03).
Southbound Interstate 405 at Studebaker Road. Exit 24A is for northbound Interstate 605 and westbound California 22. Photo taken by Andy Field/Pete Sison (08/03).
Southbound Interstate 405 at Exit 24A, Junction northbound Interstate 605 and westbound California 22. Photo taken by Andy Field/Pete Sison (08/03).
Northern Terminus - Interstate 210 - Monrovia/Duarte, California
Perspective from Interstate 605 North
The first indication of the northern terminus of Interstate 605 at its junction with Interstate 210 is this mileage sign along northbound, which provides the distance to the final three exits of the San Gabriel River Freeway. Photo taken 05/13/05.
The Live Oak Avenue Interchange is the final exit along northbound Interstate 605 prior to the junction with Interstate 210. This area is generally industrial, with power lines criss-crossing the freeway as Interstate 605 skirts the San Gabriel River channel and flood control basins. A nursery is located west of the freeway after the Live Oak Avenue interchange. Photo taken 05/13/05.
Northbound Interstate 605 approaches its northern at its junction with Interstate 210. Photo taken 05/13/05.
This mileage sign provides the distance to the remaining three offramps: Interstate 210 eastbound, Interstate 210 westbound, and Huntington Drive (Historic U.S. 66 in Duarte). The berm to the east of the freeway separates the road from the flood control basin formed by the Santa Fe Dam. The dam serves as a flood control feature of the San Gabriel River. Photo taken 05/13/05.
After passing Interstate 210, Interstate 605 northbound transitions directly onto Mount Olive Drive northbound, which in turn intersects Huntington Drive (Historic U.S. 66). Photo taken 05/13/05.
A badly graffitied END Interstate 605 shield is posted at the base of this sign bridge, which indicates that the left two lanes connect to westbound Interstate 210/Foothill Freeway (and U.S. 66/Huntington Drive) and the right two lanes transition to eastbound Interstate 210/Foothill Freeway. Photo taken 05/13/05.
Use the middle lane to connect to Mount Olive Drive, Huntington Drive, Duarte, and Bradbury. No Historic U.S. 66 trailblazer signs are found on northbound Interstate 605. Photo taken 05/13/05.
Interstate 210 is the Foothill Freeway, which generally follows the original alignment of U.S. 66 through eastern Los Angeles and western San Bernardino Counties. Photo taken by Andy Field/Casey Cooper/Joel Windmiller/Mark Furqueron (7/21/01).
Interstate 605 north becomes Mount Olive Drive, while a freeway to freeway connection leads to eastbound Interstate 210 to San Bernardino and westbound Interstate 210 to Pasadena and San Fernando. Photo taken 05/13/05.
Northbound Interstate 605 terminates at Interstate 210, but a ramp leads from the Interstate 605/Interstate 210 interchange north to Duarte. Upon reaching Huntington Drive, the offramp continues north as Mount Olive Drive, which leads from Duarte into Bradbury. Photo taken 05/13/05.
Transition from Northbound Interstate 605 to Huntington Drive in Duarte. Photo taken by Andy Field/Casey Cooper/Joel Windmiller/Mark Furqueron (7/21/01).
Perspective from Interstate 210 East
Eastbound Interstate 210 approaches Exit 36A, Junction Interstate 605/San Gabriel River Freeway, 1.25 miles. Photo taken 11/14/04.
This mileage sign provides the distance to Exit 36A, Junction Interstate 605 south and Exit 36B, Mount Olive Drive. Mount Olive Drive is the extension of Interstate 605 north to Huntington Drive (former U.S. 66). Photo taken 11/14/04.
Through traffic on eastbound Interstate 210 should remain in the left four lanes; the right lane exits onto southbound Interstate 605. An appropriate control city for southbound Interstate 605 would be Long Beach, but since Interstate 710 uses that destination, it appears that it is not used for Interstate 605. Many of the overhead pull through signs for Interstate 605 say "Thru Traffic" rather than any control or destination city. Photo taken 11/14/04.
Eastbound Interstate 210 reaches Exit 36A, Junction Interstate 605/San Gabriel River Freeway south. Photo taken 11/14/04.
The next offramp along eastbound Interstate 210 is for Exit 36B, Mount Olive Drive, which is the connection to the northbound lanes of Interstate 605. Photo taken 11/14/04.
View of the Interstate 605/Mount Olive Drive Interchange as seen from eastbound Interstate 210/Foothill Freeway. Photo taken 11/14/04.
Perspective from Huntington Drive in Duarte
Signage for Interstates 210 and 605 on Huntington Drive in Duarte. The freeway entrance (next photo) is found after making this right turn. Photo taken by Andy Field/Casey Cooper/Joel Windmiller/Mark Furqueron (7/21/01).
This freeway entrance assembly marks the beginning of southbound Interstate 605 on Huntington Drive in Duarte. The signage also points to Interstate 210, which is located a mile or so south of this point. Photo taken by Andy Field/Casey Cooper/Joel Windmiller/Mark Furqueron (7/21/01).

Page Updated May 22, 2005.

 
Mileage

State California
Mileage 27.40
Cities Long Beach, Lakewood, Belliflower, Norwalk, Los Angeles, Downey, South Whittier, El Monte
Junctions Interstate 405, Interstate 105, Interstate 5, Interstate 10, Interstate 210
Source: October 31, 2002 Interstate Route Log and Finders List
I-605 California Annual Average Daily Traffic

State Location AADT Composite Year
California Lakewood 213,000 2002
California Norwalk 311,000 2002
California Baldwin Park 219,000 2002
California Pico Rivera 242,000 2002
California Irwindale 112,000 2002
Source: Caltrans, Traffic Operations Program - Traffic and Vehicle Data Systems [2002]
Complete Interstate 605 AADT data.

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