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Chapter Df - Transportation
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Table Group Df184-577 - Roads and Vehicles
Contributor
Louis P. Cain
Table Df187-192 - Mileage of rural roads and municipal streets, by jurisdiction: 1921-1979
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Df187
Df188
Df189
Df190
Df191
2
Df192
Total
Rural
Municipal and other
Total
State-administered
County roads under local control
Primary
Secondary and county roads
Row
Year
Thousand miles
Thousand miles
Thousand miles
Thousand miles
Thousand miles
Thousand miles
1
1921
3,160
2,925
203
----
2,722
235
2
1922
3,196
2,960
227
----
2,733
236
3
1923
3,233
2,996
252
----
2,744
237
4
1924
3,243
3,004
261
----
2,743
239
5
1925
3,246
3,006
275
----
2,731
240
6
1926
3,242
3,000
288
----
2,712
242
7
1927
3,257
3,013
293
----
2,720
244
8
1928
3,262
3,016
306
----
2,710
246
9
1929
3,272
3,024
314
----
2,710
248
10
1930
3,259
3,009
324
----
2,685
250
11
1931
3,291
3,036
329
45
2,662
255
12
1932
3,296
3,040
358
84
2,598
256
13
1933
3,286
3,029
346
135
2,548
257
14
1934
3,309
3,034
325
170
2,539
275
3
15
1935
3,310
3,032
332
173
2,527
278
3
16
1936
3,267
2,920
340
177
2,403
347
17
1937
3,245
2,894
327
189
2,378
351
18
1938
3,257
2,898
327
194
2,377
359
19
1939
3,274
2,913
328
194
2,391
361
20
1940
3,287
2,920
329
195
2,396
367
21
1941
3,309
2,926
332
196
2,398
383
22
1942
3,309
2,925
334
199
2,392
384
23
1943
3,311
2,930
333
200
2,397
381
24
1944
3,311
2,932
335
200
2,397
379
25
1945
3,319
2,939
339
202
2,398
380
26
1946
3,316
2,934
342
205
2,387
382
27
1947
3,326
2,933
337
212
2,384
393
28
1948
3,323
2,929
350
206
2,373
394
29
1949
3,322
2,934
358
206
2,370
388
30
1950
3,313
2,922
363
210
2,349
391
31
1951
3,326
2,925
367
217
2,341
401
32
1952
3,343
2,925
371
219
2,335
418
33
1953
3,366
2,925
377
214
2,334
441
34
1954
3,395
2,941
379
218
2,344
454
35
1955
3,418
2,954
387
222
2,345
464
36
1956
3,430
2,945
389
226
2,330
485
37
1957
3,453
2,952
391
232
2,329
501
38
1958
3,479
2,959
395
234
2,330
520
39
1959
3,511
2,974
403
237
2,334
537
40
1960
3,546
2,989
403
241
2,345
557
41
1961
3,573
2,995
406
243
2,346
578
42
1962
3,600
3,005
407
247
2,351
595
43
1963
3,620
3,002
409
247
2,346
618
44
1964
3,644
3,003
411
248
2,344
641
45
1965
3,690
3,009
414
249
2,346
681
46
1966
3,698
3,002
418
251
2,333
696
47
1967
3,707
2,996
424
251
2,321
711
48
1968
3,685
2,951
425
252
2,274
734
49
1969
3,710
2,954
406
273
2,275
756
50
1970
3,731
2,956
408
273
2,275
775
51
1971
3,759
2,939
408
275
2,256
820
52
1972
3,787
2,937
408
277
2,252
850
53
1973
3,808
2,932
410
273
2,249
876
54
1974
3,816
2,925
410
267
2,248
891
55
1975
3,838
2,941
412
268
2,261
897
56
1976
3,857
2,943
411
268
2,264
914
57
1977
3,865
2,908
402
271
2,235
957
58
1978
3,885
2,929
402
272
2,255
956
59
1979
3,918
2,947
405
261
2,281
971
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