Interstate 805

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Interstate 805 Auxiliary route of the Interstate Highway System
Defined by S&HC § 621, maintained by Caltrans
Length:	28.51 mi[1] (45.88 km)
South end:	I-5 in San Ysidro
Major junctions:	I-8 in San Diego
North end:	I-5 near Del Mar
State highways in California (list - pre-1964) County routes in California (list) < I-780 I-880 > History - Unconstructed - Deleted - Freeway - Scenic

Interstate 805 (I-805 - also referred to as "The 805"), is a bypass interstate highway running through the San Diego 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.

This route is part of the California Freeway and Expressway System^[2].

Contents 1 Route description 2 History 3 Exit list 4 References 5 External links

[edit] Route description

Major cities Bolded cities are officially-designated control cities for signs
Mexico (southbound; via I-5) Chula Vista National City San Diego (northbound) Los Angeles (northbound; via I-5)

I-805 is an alternate bypass route of Interstate 5. The southern terminus of the 805 is at I-5 just a few miles 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.

[edit] History

Plans for 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 exit the special lanes. The system is being designed by Swoop Technology, based in San Diego county.^[3]

[edit] Exit list

Note: Except where prefixed with a letter, postmiles were measured in 1964, based on the alignment as it existed at that time, and do not necessarily reflect current mileage.

The entire route is in San Diego County.

Location	Postmile [4][5][6]	#[7]	Destinations	Notes
San Diego	0.15		Mexico (San Ysidro Port of Entry) (I-5)	Southbound exit and northbound entrance
	0.15		Camino de la Plaza	Southbound exit and northbound entrance
	0.65	1A	San Ysidro Boulevard
	1.81	1B	SR 905
	2.90	2	Palm Avenue
Chula Vista	3.65	3	Main Street, Auto Park Drive
	4.42	4	Orange Avenue
	6.06	6	L Street, Telegraph Canyon Road
	7.16	7	H Street	Signed as exits 7A (east) and 7B (west) southbound
	7.76	7C	E Street, Bonita Road (CR S17)	Northbound exit is part of exit 7
	8.85	8	SR 54	Signed as exit 9 southbound
National City	9.05	9	Sweetwater Road	Signed as exit 8 southbound
	10.28	10	Plaza Boulevard
San Diego	11.31	11A	43rd Street	Signed as exit 11B southbound; former SR 252
	R11.36	11B	47th Street, Palm Avenue – National City	Signed as exit 11A southbound
	12.34	12A	Imperial Avenue
	12.95	12B	Market Street
	13.51	13A	SR 94 (M. L. King Jr. Freeway)	Southbound exit to SR 94 west is via exit 14
	13.95	13B	Home Avenue
	14.64	14	SR 15 north	Northbound exit and southbound entrance
	14.64	14	SR 15 south	Southbound exit and northbound entrance
	15.95	15	North Park Way, University Avenue
	16.43	16	El Cajon Boulevard
	16.99	17A	Adams Avenue, Madison Avenue	Southbound exit and northbound entrance
	17.65	17B	I-8 – Beaches, El Centro	Signed as exit 17 northbound
	18.89	18	Murray Ridge Road, Phyllis Place
	20.23	20A	Mesa College Drive, Kearny Villa Road	Northbound exit and southbound entrance
	20.60	20B	SR 163 north (Cabrillo Freeway) – Escondido	Northbound exit and southbound entrance
	20.60	20	SR 163 south (Cabrillo Freeway) – Downtown San Diego	Southbound exit and northbound entrance
	21.65	21	Balboa Avenue	Former SR 274
	22.56	22	Clairemont Mesa Boulevard
	23.65	23	SR 52
	24.44	24	Governor Drive
	25.48	25A	Nobel Drive	Northbound exit and southbound entrance
	25.94	25B	La Jolla Village Drive, Miramar Road
	27.07	27	Mira Mesa Boulevard, Vista Sorrento Parkway, Sorrento Valley Road	Signed as exits 27A (Mira Mesa Boulevard, Vista Sorrento Parkway) and 27B (Sorrento Valley Road) northbound
	28.05		SR 56 east	Northbound exit and southbound entrance
	28.05		I-5 north (San Diego Freeway) – Los Angeles	Northbound exit and southbound entrance

[edit] References

[edit] External links

• California @ WestCoastRoads.com - Interstate 805
• California Highways: I-805

v • d • e Auxiliary routes of Interstate 5 California: 105 • 105 (former) • 205 • 305 (unsigned) • 405 • 505 • 605 • 805 • 905 (future) — Oregon: 105 • 205 • 305 (unbuilt) • 405 • 505 (unbuilt) — Washington: 205 • 405 • 605 (proposed) • 705