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State Shield

State Route 188

Click here for a key to the symbols used. An explanation of acronyms may be found at the bottom of the page.

Routing Routing

Rte 188From the international boundary near Tecate to Route 94.

Post 1964 Signage History Post 1964 Signage History

1964-1965 Route 188

Post-1964 Legistlative Route Graphic In 1963, Route 188 was defined as "the south end of Fallen Leaf Lake to Route 89 near Camp Richardson." This was Fallen Leaf Road near Lake Tahoe. Few realized it was even in the state highway system. In 1965, Chapter 1372 deleted this routing.

At the time of deletion, Route 188 was described a 4.7-mile State Highway which was unimproved single lane highway that was lightly traveled. 
(Source: Gribblenation Blog (Tom Fearer), "Former California State Route 188 on Fallen Leaf Lake Road", May 2022)

Post-1972 Route 188

State Shield In 1972, Chapter 1216 defined the current routing.

Pre 1964 Signage History Pre 1964 Signage History

1964-1965 Route 188

The 1964-1965 routing for this route was LRN 94, defined in 1933.

LRN 94 corresponded to Fallen Leaf Lake Road, which took visitors to the Fallen Leaf Lodge. It did not receive a sign route designation. LRN 94 appeared be in the State Highway system primarily due to the fact that off-grid political meetings were often held during the winter at Fallen Leaf Lake.
(Source: Gribblenation Blog (Tom Fearer), "Lake Tahoe Circle Tour Part 1", October 2018; "Former California State Route 188 on Fallen Leaf Lake Road", May 2022)

Post-1972 Route 188

The 1972 routing for Route 188 was not defined in 1963.

Route 188 is tied to that of the San Diego County community of Tecate.  The Californian Tecate lies directly north of the Mexican counterpart of the same name in Baja California.  A road from Potrero to the Tecate existed by 1917, although there did not appear to be a corresponding border crossing. The road from Potrero to Tecate appears to follow modern day Emery Lane and Emery Road.  The Tecate Port of Entry was established around 1919.  The Tecate Port of Entry facilitated traffic to enter the United States where it followed Thing Road towards the California Tecate. The current Tecate Port of Entry border station was constructed during 1933.  The Tecate Port of Entry was connected to Sign Route 94 via Thing Road and Emery Road by 1935. Modern Tecate Road was constructed to connect Sign Route 94 to Tecate Port of Entry by 1942. Tecate Road bypassed the community of Tecate to the west and provided a more direct route from Sign Route 94 to the Tecate Port of Entry.  In 1972, Tecate Road was added to the state highway system.
(Source: Gribblenation Blog (Tom Fearer), "California State Route 188", 8/9/2023)

Sign Route 188

Sign Route 188 was not defined as part of the initial state signage of routes in 1934. It is unclear what (if any) route was signed as Route 188 between 1934 and 1964.

Status Status

In March 2005, it was reported that a remodeled and expanded port of entry had opened. The new $18.8 million port of entry, 40 miles southeast of San Diego, has about five times as much space as the existing facility, which was built in 1933. The original crossing was housed in an adobe built in the 1880s for use as a general store. Two lanes have been built for passenger cars and two lanes for trucks. There's also a separate new pedestrian lane. All are just to the east of the existing facility and match its historic design. One of the biggest changes is the addition of three secondary inspection stations, for a total of six. The complex now occupies 13 acres, compared with 2 acres previously. A variety of high-technology equipment is also being installed, including radiation portal monitors, license plate readers and a gamma ray scanner. Work on renovating the existing facility for offices, training space, conference rooms and detention cells will begin in Spring 2005, with the goal of finishing by the end of summer 2005. A new southbound crossing, and expansion of northbound lanes at San Ysidro were planned as the next big project, Construction was slated to begin in 2007 and be completed by 2012. There also are plans for a new port of entry east of the Otay Mesa crossing, but no definite timeline has been set.
(Source: San Diego Union Tribune, 3/12/2005)

Truck ScalesThere are plans to build truck scales near Tecate. This project is fully funded in the 2006 State Highway Operation and Protection Program (SHOPP). The project includes Corridor Border Infrastructure (CBI) funds and Federal Motorcarrier funds. The total estimated project cost is $23,870,000. The project is programmed in the 2006 SHOPP for state-only matching funds for $8,927,000.

Other WWW Links Other WWW Links

Statistics Statistics

Overall statistics for Route 188:

Pre-1964 Legislative Route Pre-1964 Legislative Route

In 1933, Chapter 767 defined the route from "[LRN 43] near Mr. Anderson to the Cajon Pass-Lake Arrowhead Road". In 1935, this was added to the highway code with the routing:

"[LRN 43] near Mr. Anderson to [LRN 59]"

This routing remained unchanged until the 1963 great renumbering. It ran from Route 18 near Mt. Anderson to the present-day Route 138/Route 173 junction. This is currently signed as Route 138; it was originally an extension of Sign Route 2.

Acronyms and Explanations:

Back Arrow Route 187 Forward Arrow Route 189

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