It is a major north–south arterial thoroughfare running from State Route 99 in Elk Grove to Interstate 80 in Roseville.

[3] CR E2 enters the city of Rancho Cordova and dramatically widens to five lanes near the intersection of Kiefer Boulevard.

This stretch of roadway was widened between Kiefer Boulevard and Douglas Road to accommodate increasing traffic to the surrounding housing development.

It approaches U.S. Route 50 at an interchange, then skirting the community of Gold River to the east.

The route leaves Rancho Cordova, crossing the American River and into the community of Fair Oaks.

It remains four lanes for the remainder of the route, passing Antelope Road, and entering Placer County and the city of Roseville.

The route becomes Sunrise Avenue at the county line for a few miles, turning west on Douglas Boulevard and ending immediately at I-80.

It is a major north–south arterial thoroughfare that runs from U.S. Route 50 near Rancho Cordova to Interstate 80 in Rocklin.

It has a concurrency with State Route 16 and I-5 Business Loop between West Main Street in Woodland to I-5 (exit 541).

Once in Yolo County, it is known as South River Road and passes through the town of Clarksburg before crossing over the Freeport Bridge and ending at its northern junction with SR 160 in the town of Freeport in Sacramento County.

CR E12 was first established in 1971[1] when the area was just a small farming community, and the segment of I-5 through the region between Stockton and Sacramento was not completed until 1979.

[5] The area has since experienced significant urban development, and Elk Grove was later incorporated as a city in 2000.

County Route E13 begins at its junction with CR J11 at the eastern terminus of the Walnut Grove Bridge in Walnut Grove and proceeds north on top of the eastern levee of the Sacramento River, along River Road, passing the small town of Locke.

Known as Elkhorn Boulevard and Greenback Lane, it is a major east–west arterial thoroughfare that connects the cities and communities of Sacramento, Rio Linda, North Highlands, Foothill Farms, Citrus Heights, and Orangevale.

It starts out as a two-lane roadway, skirting the northern end of the North Natomas development of Sacramento.

The landscape changes from rural to suburb as it passes through North Highlands and Foothill Farms, where the roadway expands to six lanes at Don Julio Boulevard.

As it exits Citrus Heights and into the community of Fair Oaks, the roadway is reduced to four lanes as it reaches its terminus at Hazel Avenue (County Route E3) in Orangevale.

It runs from Garden Highway to a closed gate just short of the airport's property border.

The name "greenback" refers to the use of paper money for financial transactions at a time when gold and silver coin was the preferred rate of exchange.

Previous to 1873, the inhabitants of Haggin Grant District had only the narrow, stony trails leading through the dense timberlands to serve as outlets from their homesteads.

The discomfort and disadvantages wrought by these crude by-ways impelled the farmers to demand a main road.

Mr. Donahue insisted that his portion of the land be paid for in "greenbacks", for it was neither safe nor convenient to carry a large sum of coin in those days.

After months of discussion, Mr. Donahue won his point, and the land was paid for in greenback notes.

It runs from Mono Way (old State Route 108) near Sonora to SR 108 near Twain Harte.

It runs from Jefferson Boulevard (State Route 84) to South River Road (CR E9) in Clarksburg.

It runs from State Route 20 in Browns Valley to Warren Hill Road in La Porte.