RURAL HIGHWAY MILEAGE, INCOME, AND EXPENDITURES 29 
Table 11. — Rural road mileage by types and highway systems as existing January 1, 
1922, and mileage of each type built during 1921 in each State — Continued 
ARKANSAS 
State-aid roads 
County roads 
Forest roads 
All rural roads 
Type 
Total 
Jan, 1, 
1922 
Built 
1921 
Total 
Jan. 1, 
1922 
Built 
1921 
Total 
Jan. 1, 
1922 
Built 
1921 
Total 
Jan. 1, 
1922 
Built 
1921 
Unimproved earth 
Miles 
Miles 
Miles 
45, 765. 
22, 667. 5 
1, 500. 
150.2 
1, 867. 7 
209.1 
55.3 
58.5 
12.4 
205.6 
51.2 
Miles 
177.5 
1, 122. 1 
Miles 
401.0 
Miles 
Miles 
46, 166. 
22, 667. 5 
2, 161. 2 
150.2 
2, 868. 9 
320.2 
72.7 
154.1 
12.4 
218.5 
73.9 
Miles 
i 77.5 
Partly graded and 
drained earth 
1, 122. 1 
Earth to definite 
grade with perma- 
nent drainage 
structures 
520.9 
231.3 
140.3 
6.5 
237 8 
Sand-clay.. .. . 
Gravel 
1, 001. 2 
111.1 
17.4 
95.6 
324.9 
13.0 
17.4 
10.0 
488.5 
14.0 
41.6 
56.7 
4.5 
137.0 
37.3 
813 4 
Waterbound macad- 
am 
27.0 
Surface-treated mac- 
adam 
59.0 
Bituminous macad- 
am 
66.7 
Sheet asphalt. 
4.5 
12.9 
22.7 
137 
Portland cement con- 
37 3 
Total 
1, 781. 8 
596.6 
72, 542. 5 
1, 979. 2 
541.3 
6.5 
74, 865. 6 
2, 582. 3 
i New roads laid out but not improved. 
CALIFORNIA 
State roads 
County roads 
All rural roads 
Type 
Total 
Jan. 1, 
1922 
Built 
1921 
Total 
Jan. 1, 
1922 
Built 
1921 
Total 
Jan. 1, 
1922 
Built 
1921 
Unimproved earth 
Miles 
3, 072. 2 
300.0 
1, 089. 1 
Miles 
Miles 
28, 042. 3 
29, 110. 
Miles 
124.0 
691.5 
Miles 
31,114 5 
29, 410. 
1, 089. 1 
240.0 
7, 086. 6 
532.7 
1, 354. 8 
700.6 
585.2 
493.3 
2, 613. 
669.3 
Miles 
• 24.0 
Partly graded and drained earth 
691.5 
Earth to definite grade with permanent 
drainage structures... 
59.3 
59.3 
Sand-clay 
240.0 
6, 875. 7 
527.4 
1, 158. 7 
665.7 
12.3 
393.3 
1, 718. 9 
650.0 
4.5 
140.5 
36.3 
57.1 
17.5 
12.3 
177.0 
291.9 
2.0 
4.5 
Gravel 
210.9 
5.3 
196.1 
34.9 
572.9 
100.0 
894.1 
19.3 
18.3 
158.8 
Waterhnnnri mannriam 
36.3 
Surface-treated macadam 
57.1 
Bituminous macadam 
17.5 
Sheet asphalt 
28.5 
3.3 
96.4 
40.8 
Bituminous concrete 
180.3 
Portland cement concrete 
388.3 
Miscellaneous 
2.0 
Total 
6, 494. 8 
205.8 
69, 394. 3 
1, 354. 6 
75, 889. 1 
1,560.4 
New roads laid out but not improved. 
