1. Drainage projects - Number, area, cost, and works: Censuses of 1920 to 1960
131 KB
2. Drainage projects, by size: Census of 1960
109 KB
3. Drainage projects, by type of organization: Census of 1960
110 KB
4. Drainage projects, by year of organization: Census of 1960
59 KB
5. Drainage projects area, size, and type of organization, 1960; and drainage operations, 1950 to 1959; by States
307 KB
6. Number of drainage projects, by States: Censuses of 1920 to 1960
132 KB
7. Land in drainage projects, and land in farms, by States: Censuses of 1920 to 1960
178 KB
8. Land in drainage projects, and total area of individual projects, 1920 to 1960; areas served by two or more projects, 1960; and overlapped areas, 1920 to 1950; by States
172 KB
9. Cost of drainage, by States: Censuses of 1920 to 1960
150 KB
10. Types of drainage works, by States: Censuses of 1920 to 1960
212 KB
11. Drainage projects by size, by States: Censuses of 1920 to 1960
504 KB
12. Drainage projects by type of organization, by States: Censuses of 1920 to 1960
261 KB
13. Area drained by year drainage was established, 1960; and drainage projects by year of organization, Censuses of 1920 to 1960; by States
