36 
BULLETIN 1279, U. S. DEPARTMENT OE AGRICULTURE 
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 
MARYLAND 
Type 
Unimproved earth 
Partly graded and drained earth. 
Gravel 
Waterbound macadam 
Surface-treated macadam 
Sheet asphalt 
Bituminous concrete 
Portland cement concrete 
Brick 
Miscellaneous 
Total. 
State roads 
County roads 
All rural roads 
Total 
Jan. 1, 
1922 
Miles 
Built 
1921 
Miles 
197.i 
39.7 
945. 2 
21.1 I 
44.1 j 
467.6 
1.7 L 
73.5 I. 
21.5 
6.3 
19.9 
120.3 
Total 
Jan. 1, 
1922 
Miles 
9, 865. 8 
1, 243. 3 
724.4 
398.5 
240.4 
25. : 
523.7 
Built 
1921 
Miles 
106.3 
48.0 
19.5 
Total 
Jan. 1, 
1922 
Miles 
9, 865. 8 
1, 243. 3 
922.0 
398.5 
1, 185. 6 
21.1 
44.1 
492.9 
1.7 
597.2 
1, 750. 8 
207 
13, 021. 4 
14, 772. 2 
Built 
1921 
Miles 
106.3 
87.7" 
6.8 
27.0 
6.3 
19.9 
123. 3 
19.5 
396. 
MASSACHUSETTS 
Type 
State roads 
State-aid roads 
Town roads All rural roads 
J™ 1 BuUt 
1922 ' 1921 
i 
Total 
Jan. 1, 
1922 1 
Built 
1921 
™* Built T^ Built 
Miles Miles 
Unimproved earth ' 
Miles 
Miles 
Miles 
4, 218. 8 
Miles Miles Miles 
4,218.8 
Partly graded and 
8, 059. 
2.7 
5.5 
2, 928. 7 
1, 099. 9 
2. 2 8, 059. 2. 2 
Earth to definite 
grade with perma- 
nent drainage struc- 
2.7 
15.4 
2.7 
174.3 
63.1 
8.2 ' 
Gravel.. 
Waterbound mac- 
0.7 
570.0 
41.5 
35. 4 3, 103. i 77. 6 
5. 3 ' 1, 163. 5. 3 
Surf ace- treated mac- 
364.6 
156.0 
170.4 
0.4 
69.1 
12.7 
2.0 
42.8 
0.4 
10.8 
1.9 
156.0 
520.6 2.0 
Bituminous mac- 
adam 
555.6 
56.0 
712.9 
0.4 
100.4 
32.2 
6.7 
1.3 
7.0 
86.0 
52.6 1,268.5 151.4 
0. 4 0. 4 
Bituminous concrete- 
Portland cement con- 
crete 
Brick 
179.6 
96.7 
0. 1 
15.8 
38.1 
11.6 280.0 38.2 
2.1 128.9 42.1 
6.S 
0.1 
0.7 
1.4 
0.1 
Miscellaneous. 

1.7 86.0 1 1.7 
Total 

1, 450. 2 
110.6 
981.4 
99.4 
17, 417. 5 
110.9 18,867.7 ! 320.9 
1 
1 Does not include total mileage of town roads which have been constructed with State aid. These roads 
remain as town roads and are included under column "Town roads." 
