State Route 607 was a state highway serving the Las Vegas Valley including Las Vegas, Nevada and North Las Vegas. The highway followed Eastern Avenue, a section line arterial in Las Vegas and continued on Civic Center Drive in North Las Vegas. The route was turned over to local control by 2008.
State Route 607 began at Sahara Avenue (SR 589) at the Las Vegas city limit. It followed Eastern Avenue northward towards Owens Avenue, where the roadway entered the City of North Las Vegas and changed names to Civic Center Drive. SR 607 continued north to pass through downtown North Las Vegas before terminating at Cheyenne Avenue (SR 574).
North of the "Five Points" intersections with Charleston Boulevard (SR 159) and Fremont Street (SR 582), SR 607 shifted slightly eastward to run over the former 25th Street alignment as it headed towards North Las Vegas.
Nevada DOT had plans to abandon the route from the state's highway system. By January 2008, the route had been completely relinquished to local control.
A north–south road in northern St. Lucie County and southern Indian River County, State Road 607 (SR 607) extends 2.5 miles (4.0 km) from its southern terminus (an intersection with SR 614 near Lakewood Park) to the Indian River County line. It is locally known as Emerson Avenue throughout its route.
SR 607 formerly extended into Indian River County, with its northern terminus being at Vero Beach.
SR 607's two north–south lanes pass through orange groves in St. Lucie County.
According to a 1960 map prepared by State Road Department (forerunner of the Florida Department of Transportation), Emerson Road shared its SR 607 designation with Indrio Road (present SR 614) and Kings Highway (present SR 713). At that time, Angle Road east of Kings Highway was signed State Road 607A.
The road originally ran 8.5 miles (13.7 km) miles long, extending into Indian River County along 27th Avenue to SR 60 in Vero Beach. This portion threads between residential developments and is an important commuter road for this growing section of the eastern coast of Florida.