Interstate 805
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| Interstate 805 Auxiliary route of the Interstate Highway System |
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| (CS&HC Section 621) | |||||||||||||
| Length: | 28.51 mi[1] (45.88 km) | ||||||||||||
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| Formed: | July 1964 by FHWA[2] 1973 renumbering by Caltrans[3] |
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| South end: |  I-5 in San Diego |
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| Major junctions: |
 SR 905 in San Diego SR 15 in San Diego I-8 in San Diego |
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| North end: | I-5 in San Diego |
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Interstate 805 (abbreviated I-805) is a three-digit interstate route in southern California.
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[edit] Route description
I-805, also known as the Jacob Dekema Freeway or simply, the 805, serves the San Diego metropolitan area and acts as an alternate loop route of Interstate 5. The southern terminus departs from I-5 just north of the U.S.-Mexico border at San Ysidro. I-805 then goes through Chula Vista, National City, and then the North Park, Clairemont, University City and Mira Mesa Neighborhoods of San Diego. The northern terminus is in Sorrento Valley, San Diego, and there is an HOV lane that goes through the merge to rejoin I-5. 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 passes through the Mid-City community of San Diego, then leads into the relatively new business parks at the Golden Triangle (via Governor Drive and La Jolla Village Drive) and Sorrento Valley. The freeway continues to be very busy as it rejoins Interstate 5 near Carmel 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.
[edit] State Law
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Route 805 is part of the Freeway and Expressway System, as stated by section 253.1 of the California State Highway Code. |
[edit] Future aspirations
Work is underway to reconstruct the I-5-I-805 interchange as well as the addition of 2 HOV Lanes between State Route 52 and Mira Mesa Boulevard.
[edit] History
Plans for the route was passed in legislature in 1959 as Legislative Route Number 241. It was soon after approved as a chargeable interstate in 1958, then subsequently declared a signed state route in 1964. The construction of the route began construction in 1970 and was completed in 1975. Named after Jacob Dekema, a pioneering force from Caltrans who helped shape the San Diego freeway system, Interstate 805 was completed by the mid-1970s, including a towering bridge over Mission Valley and Interstate 8 (an engineering marvel, including San Diego County's only symmetrical stack interchange).
[edit] 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, California - 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
[edit] Exit list
Postmiles are derived from[1] and exit numbers derived from[4].
| Location | Postmile | # | Destinations | Notes | |
|---|---|---|---|---|---|
| Southbound traffic defaults onto I-5 south, merging directly to the United States–Mexico border. |
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| San Diego | SD 0.00 | I-5 south |
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 |  SR 905 |
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| 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 |  Bonita Road |
Combined with Exit 7 - H Street northbound, using bypass ramp | ||
| SD 8.90 | 8 |  SR 54 |
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  SR 252 connecting to I-5 |
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| 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 |  SR 94 |
No southbound exit or northbound entrance from SR 94, served by SR 15 instead | ||
| SD 13.95 | 13B | Home Avenue | |||
| SD 14.65 | 14 | SR 15 north - 40th Street |
Northbound exit and southbound entrance | ||
| 14 | SR 15 south to SR 94 west |
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 |
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| SD 17.65 | 17B | I-8 |
Exit 17 northbound | ||
| SD 18.89 | 18 | Murray Ridge Road; Phyllis Place | |||
| SD 20.23 | 20A | Kearny Villa Road | Northbound exit and southbound entrance | ||
| SD 20.60 | 20B |  SR 163 |
Exit 20 southbound; northbound to northbound split, southbound to southbound split; no access north to south, or south to north |
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| SD 21.66 | 21 | Balboa Avenue | Formerly  SR 274 |
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| SD 22.56 | 22 | Clairemont Mesa Boulevard | |||
| SD 23.57 | 23 |  SR 52 |
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| 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 | I-5 north |
Northbound exit and southbound entrance | |||
| Northbound traffic defaults onto I-5 north. |
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[edit] References
- ^ a b January 1, 2006 California Log of Bridges on State Highways
- ^ California Highways: Interstate Highway Types and the History of California's Interstates
- ^ California Highways: Interstate 805
- ^ Cal-NExUS Interchange Exit Numbering
[edit] 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
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Auxiliary routes of Interstate 5 | |
| Current and Future (F) | Former | |
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California - Oregon | |
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California - Oregon/Washington | |
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California | Oregon |
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California - Oregon - Washington | |
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California | Oregon |
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California | Washington |
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Washington | |
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California | |
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California (F) | |
