The route still (mostly) exists; however it is currently signed as State Route 14 (SR 14) between Maryhill and Vancouver, Interstate 5 (I-5) between Vancouver and Longview, SR 432 for a short stretch through Longview; and SR 4 from Longview to the western terminus near Naselle.

While US 30 and US 830 never connected, they ran parallel to each other for the entire length of US 830.

This route ran on the northern bank of the Columbia River (through Washington) whereas US 30 runs on the river's southern bank, through Oregon.

US 830 was created in 1926 as part of the initial set of United States Numbered Highways, running from US 101 at Megler to US 97 near Maryhill.

The stretch of US 830 between Maryhill and Dalleport was formerly concurrent with US 197 from 1952 onward;[4] now Dallesport is the northern terminus of US 197.