WORK OF THE UNITED STATES FOREST SERVICH 17 
Through cooperative arrangement the highway projects which re- 
quire the supervision of engineers intensively trained in highway 
engineering and construction are handled by the Bureau of Public 
Roads. The construction, repair, and maintenance of truck trails 
required primarily for administrative, utilization, and protective 
purposes on the national forests, together with the building and 
eS 
F-281481 
FIGURE 12.—Telephones are highly essential in fire prevention on national forests. 
maintenance of foot and horse trails, are handled directly by the 
Forest Service. Such work is coordinated with fire control, when- 
ever possible, so that construction crews may be available as part of 
the fire-suppression organization in remote areas of great fire hazard. 
Up to June 30, 1938, 8,083 miles of forest highways, 52,949 miles of 
truck trails, and 99,660 miles of foot trails had been constructed from 
direct forest road appropriations and other Federal and cooperative 
funds apportioned to the States. More than $351,000,000 has been 
spent on this work in the history of the Forest Service. In addition, 
many more thousands of miles of roads and trails have been maintained. 
Complete and economical use of the forage on the forests some- 
times makes necessary development of water supplies or construction 
123613°—39——3 
