| 1877 |
Board of Supervisors divide the county in 39 road districts |
| 1880 |
California Southern Railroad starts operation |
| 1882 |
Board of Supervisors rejects opening a new road from Encinitas on the California Southern Railroad, to the Los Angeles stage road |
| 1884 |
Mr. Loup, pioneer of Delmar circulates a petition for a county road down the coast |
| 1885 |
The Board of Supervisors grant a petition for a new road to Tijuana
In Oceanside a road along the railroad track is opened by Samuel Tyson to Vista and Encinitas |
| 1886 |
The road from San Diego to La Jolla is indicated by "guide boards"
A road is surveyed from Oceanside through Las Flores to Santa Ana in September
A proposed road from San Diego through La Jolla and Del Mar is brought before the county |
| 1900 |
American Automobile Club of Southern California founded |
| 1903 |
E.W. Scripps plans to build a road from Pacific Beach to La Jolla at his own expense
Work begins on a road from South Oceanside to Carlsbad
|
| 1906 |
Supervisor Griffin visits Los Angeles to gain support for a coast road to San Diego. Seeks right of way across the Santa Margarita ranch. |
| 1906 |
The worst portion of the coast route is near Del Mar and Sorrento at the slough. Plans to make the road higher |
| 1907 |
Contract awarded for three wooden bridges; one at San Dieguito, one at the La Costa slough and the other at Carlsbad Slough.
Road is being straightened and "will run close to the sea all the way from Del Mar northward, in most cases being on the west side of the Santa Fe track." |
| 1909 |
San Diego County creates Highway Commission. John D. Spreckles, A.G. Spaulding, E.W. Scripps appointed Board of Supervisors. The first action to recommend a bond issue in the amount of $1,250,000 to build 461 miles of dirt road to connect every community in the county.
San Diego County and the State of California finance paving of road.
Motorcycle race from Los Angeles to San Diego in May |
| 1910 |
Plans to join Orange County road to Oceanside |
| 1911 |
Grading of Oceanside road begins
Auto race from Los Angeles to Phoenix down the coast through San Diego
Route through Rancho Santa Margarita completed. |
| 1912 |
State Highway Commission designates Coast Road through San Diego County as "Route 2" |
| 1913 |
Contract is let for road from Oceanside down to Encinitas
Motor Vehicle Act adopted, requiring autos to be registered, establishes the Department of Motor Vehicles
|
| 1915 |
In April the "new" Coast Highway is dedicated at Oceanside
The first Prison Road Camp established in 1915
San Diego Panama-California Exposition |
| 1916 |
Flood, wiped out roads, bridges and railroad |
| 1918 |
Oceanside's Hill Street is paved by Highway Commission |
| 1919 |
Prohibition begins, bringing travelers, including celebrities, down to Tijuana. Locals suggest renaming highway as the "Tijuana Highway"
San Luis Rey Bridge to Oceanside completed |
| 1923 |
Awarded to Jahn & Bressi to pave 18 miles of road from San Diego to Oceanside |
| 1924 |
Work begins on widening and repaving route from San Diego to Oceanside
Two Santa Fe railroad crossings eliminated by a relocation of the highway and railroad tracks in San Diego County. The old highway abandoned between Encinitas and Cardiff, and the railroad moved over to provide a roadway for the new pavement along the ocean front. Road is on west side of tracks with pavement twenty feet wide. |
| 1925 |
Numbers were adopted by the Federal Government to designate the U.S. route. 101 is to be come the U.S. route on the West Coast. |
| 1926 |
Nearly six miles of "second story" concrete pavement completed on the highway between Oceanside and San Onofre
Traffic begins using the San Onofre-San Mateo Creek line change on the coast highway north of Oceanside. Shortens the distance two-thirds of a mile and eliminates sixteen curves. Two bridges across the two creeks completed by the bridge department.
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| 1927 |
Construction of approaches to the new Carlsbad overhead crossing of the Santa Fe tracks begins.
Del Mar overhead crossing completed
Old Carlsbad grade crossing of the Santa Fe main line to San Diego eliminated by a line change and a new overhead crossing. The new structure crosses the Santa Fe rail-road on a relocation and diverts the through traffic from one of the town's main streets.
|
| 1928 |
Automobile Club of Southern California erects new signs along 101 |
| 1929 |
In 1929 the only paved road along the coast was routed through La Jolla, through La Jolla Canyon to Torrey Pines Mesa and Torrey Pines Grade. It was 16 feet wide, crooked and steep. San Diego had 768 miles of road, less than half were paved (380). |
| 1931 |
Supervisors vote $12,500 for needed county highway projects to give work to unemployed.
San Ysidro-Tijuana border paving by the State Highway Commission begins in November |
| 1932 |
Torrey Pines, grading for new state highway started by the county |
| 1932 |
Line change at Sorrento Canyon near Del Mar. Nearly 10 miles of winding roadway with several small radius curves and steep grades replaced by 9.4 miles of comparatively straight alignment and uniformly low grades.
Old Torrey Pines grade eliminated. 4.4 mile project extends from northern San Diego to the La Jolla and Rose Canyon routes. |
| 1934 |
Official opening of the new Atlantic Avenue entrance to the city of San Diego
Four major highway projects are approved by the state highway commission:
Santa Margarita river bridge; Oceanside-San Mateo creek; Oceanside-Del Mar; National City-San Ysidro
According to plans of the state highway department all new paving operations between Oceanside and San Diego will be completed in time for the exposition next year. When the stretch between Encinitas and Del Mar is completed, there will be a smooth, three-lane highway all the way from San Diego to Oceanside. Oceanside Blade-Tribune, Oct. 8, 1934
Highway divided in Leucadia north of Encinitas to save row of eucalyptus trees. |
| 1936 |
Five major highway projects:
1. Widen coast highway Del Mar to Encinitas
2. El Cajon avenue
3. Approaches to Santa Margarita creek
4. Las Flores underpass
5. Realigning highway Oceanside-Las Flores
|
| 1936 |
Del Mar hosts County Fair
San Diego Exposition |
| 1937 |
Del Mar Race Track is Opened |
| 1938 |
Opening and Dedication of road from Oceanside to San Clemente 19 men added to California highway patrol, but only one assigned to San Diego County. |
| 1941 |
Camp Callan at La Jolla opened World War II, bombing of Pearl Harbor |
| 1942 |
U.S Navy takes over Rancho Santa Margarita and it becomes Camp Joseph H. Pendleton |
| 1947 |
Plans to re-route Highway 101 begin |
