# ROAD BUILDING IN THE UNITED STATES

ROAD BUILDING IN THE UNITED STATES Produced: 1925 Description Various types of roads are constructed. Illustrates advantages of each type. Reel 1, top-soil roads are graded, surfaced, and dragged. Gravel is dug, crushed, screened, and spread on roadbeds. Hot asphalt is spread over crushed stone to make a penetration macadam road. Reel 2, concrete is mixed and spread over a roadbed. Asphalt concrete is mixed, spread, and rolled. https://catalog.archives.gov/id/7222

- Kind: Educational
- Year: 1925
- By: National Archives
- Genres: Education
- Archive: [Internet Archive](https://archive.org/details/33-258-r1)
- Licence or status: none stated by the archive
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/33-258-r1?play=1)