The road was finally paved entirely with asphalt in the 1950s.

It was entirely paved upon designation and has not undergone any route changes.

The route was established in 1939 and was entirely paved by 1957.

The road was then paved entirely by 1958, then extended to today's I-25 in 1960.

The route was also entirely paved by 1963.

The route was entirely paved three years later.

The road was entirely paved and extended again down to its current terminus at Interstate 70 in 1963.

For many years, the courtyard was entirely paved in marble with a fountain in the center.

By this time, the highway was entirely paved.

Four years later, the road was entirely paved.