The Goddard Survey later corroborated the findings of the Day Survey in that Johnson's Pass would be the desirable route of a Trans-Sierra Wagon Road.
The surveyed routes of Sherman Day over Johnson's Pass and Carson Pass.
During 1857 the counties of; Yolo, Sacramento and El Dorado contributed $50,000 dollars towards construction of a wagon road over Johnson's Pass. County officials hired noted stagecoach driver J.B. Crandall of the Crandall & Sunderland Company to drive surveyor's over Day's route east through the Sierra Nevada Mountains to Carson Valley via Johnson's Pass. The Crandall & Sunderland Company at the time operated as a stage line from the terminus of the Sacramento Valley Railroad in Folsom eastward to Placerville. The stage trip from Folsom originated on June 11th, 1857 and proved that a wagon road over Johnson's Pass was indeed feasible.
The below map details when specific segments of the Lake Tahoe Wagon Road were completed between 1858- 65 east of Placerville to Genoa, Nevada.
The usage of the name "Lake Tahoe Wagon Road" is noted to have come some time after it's completion in 1865.
The Lake Tahoe Wagon Road as depicted in 1865 via wood cut drawing.
The completed Lake Tahoe Wagon Road can be seen on the 1873 Bancroft's Map of California, Nevada, Utah and Arizona east of Placerville to the State Line.
The Lake Tahoe Wagon Road east of Placerville had become a El Dorado County public highway during 1886. On March 26th, 1895 the California State Legislature approved the creation of the Lake Tahoe State Highway. The Lake Tahoe State Highway's original definition had it originate near Smith's Flat at the intersection of the Placerville Road (Lake Tahoe Wagon Road) and Newtown Road. The Lake Tahoe State Highway was to cross the Sierra Nevada Mountains easterly to the Nevada State Line via Johnson's Pass following the existing Lake Tahoe Wagon Road. The Lake Tahoe State Highway became effective upon being signed into law on February 28th, 1896 and was the first California State Highway.
According to CAhighways.org the Lake Tahoe State Highway was extended westward from Smith's Flat as part of 1897 Legislative Chapter 176 with the following definition:
"A public highway or wagon road shall be built from a point on the E limits of the city of Sacramento to Folsom in Sacramento Cty as near practicable along the route of the present most direct line of county roads between these two points..."
The 1897 extension of the Lake Tahoe State Highway left a gap in State Maintenance from Folsom eastward to Placerville. The first work conducted on the Lake Tahoe State Highway was a new 80-foot stone arch bridge over the South Fork American River at Riverton which was completed during 1901.
Scenes of the early Lake Tahoe State Highway as depicted in the September 1950 California Highways & Public Works.
The Folsom-Placerville gap in the Lake State Tahoe State Highway would not be resolved until the 1909 First State Highway Bond Act (approved by voters in 1910). The majority of the highways approved as part of the First State Highway Bond Act were largely well established routes of travel. The 1909 First State Highway Bond Act according to CAhighways.org provided funding for a highway from Sacramento east to Placerville which closed the gap in the Lake Tahoe State Highway. In time the Lake Tahoe State Highway would come to be assigned as Legislative Route Number 11 ("LRN 11").
During 1912 Indiana Businessman Carl G. Fisher conceptualized the Lincoln Highway as a major transcontinental Auto Trail. The Lincoln Highway was formally dedicated on October 31st, 1913 and would cross the Sierra Nevada Mountains via North/South branches. The South Lincoln Highway entered the State of California from Stateline, Nevada and followed LRN 11 west towards Sacramento. The Lincoln Highway Association's Official Map shows the following alignment of the first generation South Lincoln Highway from Folsom eastward into Placerville:
- Folsom Boulevard to Sutter Street in downtown Folsom.
- Sutter Street to Riley Street in downtown Folsom.
- Riley Street to Bidwell Street in Folsom.
- Bidwell Street east from Folsom to Placerville Road.
- Placerville Road to White Rock Road.
- White Rock Road east through some abandoned right-of-way to Old White Rock Road.
- Old White Rock Road through the ghost town of Clarksville under the US Route 50 freeway to Tong Road.
- Tong Road to Old Bass Lake Road.
- Abandoned right-of-way under the US Route 50 freeway to Marble Valley Road.
- Abandoned right-of-way under the US Route 50 freeway to Country Club Drive.
- Country Club Drive to abandoned right-of-way under the US Route 50 freeway to Rodeo Road.
- Rodeo Road through abandoned right-of-way to Durock Road.
- Durock Road through abandoned right-of-way to Mother Lode Drive in Shingle Springs.
- Mother Lode Drive, Buckeye Road, Rocking Horse Lane, Cutty Sark Lane, Old French Town Road, Greenstone Cutoff and Mother Lode Drive to Pleasant Valley Road.
- Pleasant Valley Road to California State Route 49 in El Dorado.
- California State Route 49 to Forni Road.
- Forni Road through abandoned right-of-way under the US Route 50 freeway to Placerville Drive.
- Placerville Drive through abandoned right-of-way to Pierroz Road.
- Pierroz Road to Cold Springs Road.
- Cold Springs Road through abandoned right-of-way under the US Route 50 freeway to Main Street in Placerville.
- Main Street through downtown Placerville via an abandoned alignment connecting directly with Broadway.
The January 1915 California Highway Bulletin cites South Lincoln Highway/LRN 11 from the City Limits of Folsom 6.8 miles eastward to the El Dorado County Line to be paved in 12 foot wide concrete.
The alignment described as the first generation South Lincoln Highway can be seen incorporated into LRN 11 on the 1917 California State Automobile Map from Folsom east to Placerville.
US 50 is shown to have a planned terminus at US 40 near Wadsworth, NV on the 1925 Rand McNally Junior Map of California.
US 50 can be seen terminating US 40 in Wadsworth, NV on a October 1925 report to by the Bureau of Public Roads which lists the recommended US Routes.
The US Route System was finalized by November 1926 and included US 50 being extended to a new terminus at US 99 in Sacramento via the South Lincoln Highway/LRN 11. Early US 50/LRN 11 through Placerville-Folsom can be seen on the 1927 National Map Company Highway Map of California.
The April 1936 California Highways & Public Works reports substantial flood/wash out damage to US 50 and California State Route 49 ("CA 49") in the vicinity of Placerville.