INTERSTATE 805

'Interstate 805' (abbreviated 'I-805', and colloquially referred to as 'The 805' or ''the eight-oh-five''), is a bypass interstate highway running through the San Diego, California metropolitan area. It is officially known as the 'Jacob Dekema Freeway' after Jacob Dekema, a pioneering force from the California Department of Transportation (CalTrans) who helped shape the San Diego freeway system.

Contents

Route description

History

State Law

Control cities

Exit list

References

External links

Route description

I-805 acts as an alternate bypass route of Interstate 5. The southern terminus of the 805 is at I-5 just a few meters north of the United States–Mexico border at the San Diego district of San Ysidro. I-805 then goes through the cities of Chula Vista and National City before reentering San Diego. The freeway then passes though the San Diego neighborhoods of North Park, Mission Valley, Clairemont, and University City before terminating at I-5 in Sorrento Valley.
Eight to ten lanes throughout, Interstate 805 has evolved into a busy commuter route from the International Border into the exploding South Bay communities of Chula Vista (including Rancho del Rey and Eastlake) and National City. The freeway also leads into the relatively new business parks near University City (via Governor Drive and La Jolla Village Drive) and Sorrento Valley. As more companies locate along the route of Interstate 805, more traffic utilizes the route as an important connector to get from home to work. In addition to commuter traffic, the freeway is one of two north-south freeways that reach Mexico. Traffic to and from the border is also very common along Interstate 805.
The 805 also includes a towering bridge over Mission Valley and Interstate 8, including San Diego County's only symmetrical stack interchange.

History

Plans for the the 805 were passed in legislature in 1959 as 'Legislative Route Number 241'. It was approved as a chargeable interstate in 1958, and declared a signed state route in 1964. The freeway was then built between 1970 and 1975.
A major expansion of the 805-5 merge zone was opened to traffic on April 3rd, 2007. Including HOV Lanes and local bypass lanes, this merge spans 22 lanes at the widest point. Work is also underway to add two HOV Lanes between State Route 52 and Mira Mesa Boulevard.
As of 2007, a three-year project is underway to allow robot controlled vehicles, including buses and trucks, to use a special lane. The intention is to allow the vehicles to travel at shorter following distances and thereby allow more vehicles to use the lanes. The vehicles will still have drivers since they need to enter and eit the special lanes. The system is being designed by Swoop Technology, based in San Diego county.^[4]

State Law

Control cities

'Northbound'

★ San Diego and Chula Vista - between San Ysidro and Chula Vista

★ San Diego and National City - between the southern Chula Vista city limits and National City

★ San Diego - between the Chula Vista/National City city limits and the National City/San Diego city limits

★ Los Angeles - between SR-94 and the northern I-5 interchange
'Southbound'

★ None - between the northern I-5 interchange and California State Highway 905

★ Mexico - between California State Highway 905 and Southern Interchange with I-5 one mile north of Mexican Border

Exit list

Postmiles are derived from^[1] and exit numbers derived from^[6].

Location	Postmile	#	Destinations	Notes
Southbound traffic defaults onto 25x20px I-5 south, merging directly to the 'United States–Mexico border'.
San Diego	SD 0.00		– Mexico	Southbound left exit and northbound entrance
			Camino de la Plaza	'Last USA exit'; Southbound exit only; Northbound entrance accessible via the I-5 northbound entrance
	SD 0.65	1A	San Ysidro Boulevard
	SD 1.81	1B
	SD 2.90	2	Palm Avenue
Chula Vista	SD 3.65	3	Main Street; Auto Park Drive
	SD 4.41	4	Orange Avenue; Olympic Pkwy
	SD 6.06	6	Telegraph Canyon Road; L Street
	SD 7.16	7	H Street	Split into Exit 7A (east) and Exit 7B (west) southbound
	SD 7.76	7C		Combined with Exit 7 - H Street northbound, using bypass ramp
	SD 8.90	8		Exit 9 southbound
National City	SD 9.05	9	Sweetwater Road	Exit 8 southbound
	SD 10.28	10	Plaza Boulevard
San Diego	SD 11.31 SD 11.34	11A	43rd Street	Exit 11B southbound; was to be the exit for the now-deleted 25x20px SR 252 connecting to I-5
	SD R11.14 SD R11.22 SD R11.36	11B	47th Street; Palm Avenue	Exit 11A southbound
	SD 12.34	12A	Imperial Avenue
	SD 12.95 SD 13.10 SD 13.14	12B	Market Street
	SD 13.52	13A		No southbound exit or northbound entrance from SR 94, served by SR 15 instead
	SD 13.95	13B	Home Avenue
	SD 14.65	14	– 40th Street	Northbound exit and southbound entrance
		14		Southbound exit and northbound entrance; northbound I-805 to southbound SR 15 served by SR 94
	SD 15.95	15	University Avenue	Northbound exit accessible via Wabash Avenue; Southbound exit and entrance accessible via Boundary Street
	SD 16.43	16	El Cajon Boulevard
	SD 16.99	17A	Adams Avenue	Southbound exit, accessible via Madison Avenue and Ohio Street, and northbound entrance, accessible via Madison Avenue and 32nd Street
	SD 17.65	17B	, Beaches	Exit 17 northbound
	SD 18.89	18	Murray Ridge Road; Phyllis Place
	SD 20.23	20A	Kearny Villa Road; Mesa College Drive	Northbound exit and southbound entrance
	SD 20.60	20B		Exit 20 southbound; northbound to northbound split, southbound to southbound split; no access north to south, or south to north
	SD 21.66	21	Balboa Avenue	Formerly 25x20px SR 274
	SD 22.56	22	Clairemont Mesa Boulevard
	SD 23.57	23
	SD 24.44	24	Governor Drive
	SD 25.40	25A	Nobel Drive
	SD 25.94	25B	Miramar Road; La Jolla Village Drive
	SD 27.07	27A	Mira Mesa Boulevard	Combined as Exit 27 southbound
		27B	Sorrento Valley Road
	SD 28.51			Northbound exit and southbound entrance
Northbound traffic defaults onto 25x20px I-5 north.

References

1. January 1, 2006 California Log of Bridges on State Highways
2. California Highways: Interstate Highway Types and the History of California's Interstates
3. California Highways: Interstate 805
4. Robot Buses Pull In to San Diego's Fastest Lane
5. January 1, 2006 California Log of Bridges on State Highways
6. Cal-NExUS Interchange Exit Numbering

External links

★ WestCoastRoads - Interstate 805

★ California Highways: I-805

★ Western Exit Guide - Interstate 805 California

★ The Big Highways Page: Interstate 805

★ Cal-NExUS: Route 805 North

★ Cal-NExUS: Route 805 South