Land acquired for projects was abandoned or was sold off for other purposes.

It’s also evidence of the slowdown, and then virtual halt, in major highway construction that took hold in the 1970s as California’s population growth slowed and as liberal opposition to public works merged with conservative dislike of new taxes.

Projects were abandoned, sometimes with pieces of elevated highway left dangling.

The paperwork of years, even decades, of complex and often heated local negotiations over routes was filed away.

Note that ISTEA repealed the previous Federal-Aid System, effective in 1992, and established the functional classification system for all public roads.

In May 2016, an article in the Modesto Bee noted the original plans for the route.

It pointed out that, driving north from Bakersfield on Route 99, a motorist soon encounters an off-ramp onto Highway 65, which runs up the east side of the Central Valley – but on to about 70 miles north of Bakersfield, near the farming town of Exeter.

It notes that there is another segment .200-plus miles further to the north, 35 mile of Route 65 connecting Marysville, north of Sacramento, with Roseville.

"LRN" refers to the Pre-1964 Legislative Route Number. "I" refers to an Eisenhower Interstate signed route.

"Route" usually indicates a state shield signed route, but said route may be signed as US or I.