26 BULLETIN ■::■. U. 5. DEPABUMEST OP AGBICrLTTTBE. 
Aft --.-:. spread and partially compacted fchin bitumi- 
nous binder was applied to the surface cold, at the rate of one-naif gallon per 
square yard, and left undisturbed until the next day. Shell fines and sand 
ver the bitumen and the surfs se w s rolled until thoroughly 
compacted. The length of read treated w th bitumen w s B 950 feet and the 
13 square yar Is 
vitrified clay pipe. 16S feer by 24 inches, half-round corrugated iron pipe " 
- and circular corrugated pipe, 32 feer by 4S inches, were used 
in cons - nilverts 
The equipment consisted of a 10-ton roller, a road grader, slat-bottom wagons 
A 21 sol i yards ipa ity and hand tools, ana laboi aost >1.7. pei 10-hom 
I $5 for teams. The cost was distributed as follows: Clearing. 
ling, and ditching (estimate:: 51.5 >1 w 1 : r fuel for the roll -a. $15C 
shaping the subgrade, 16 :~ c square yards, at §C C 1 ~:~ :er square yard. $104.25 ; 
ert pipe. $595.88; labor on the culver:-. ?:° ._•: : shell for surfacing, 1 M 
cubic r i Is ■ >: :_" ; .: jut Lc yard £5 878 11 hauling the shell. ■: . .' ; . .: 
yard? t '• - - yard 52,4 "" bj re ..ding -the shell. 5. 1 - •: .. 1: yards, 
at $0.0678 pei yard ?3S0.23 : sarinhllng. 16. ITS square yards at $0.00513 
per square roll _ '.' 175 square yards, a: SI 01845 per square yard. 
£29S.5( Trimming the shoulders and ditches 41,000 feet), $175.75; bitumen, 
- - _-ll ns : > i per gallon. $725 : dTiaa/a: ze on car. $81; hauling the 
bitumen. S6S ; spre ling :he bitumen. 15.911 square yards, at per 
sqi] ; yard S applying shell Ones and sand, 15.911 square yards, at 
"75 per square y; : 1. >:ll3.7o: ana incidentals, $6 
The total cost of the road to the community was $13,006.43, which is at the 
rat : c § £ per square yard. 
Axxapolis. Mo. — Several sections of - road aggregating approximately 7,052 
in 1 _:1. upon :he grounds :f the United States Naval Academy at 
Annapolis were improved etween A] :il 17. 1913, and May 16, 1913 The land 
:: be these roads is nearly level and the soil has been made by filling 
i various materials, such as clay, brick, shells etc The maximum cut 
and the maximum fill were each about 0.5 foot, since the grading was essen- 
y only a matter of correcting slight irregularities in the grade of the 
: Is The : ist of labor was $1.25. and of 1-horse teams $2 pei B-h oi 
e equipma -red of one 4*-ton tandem roller, one 10-ton macad m 
- th 1 in '-". 1 water wag ue 2-horse gi 
sh -"-. etc The average haul for excavati a - 1.000 feet and the maximum 
haul. 2.000 feet. The hauling was done in cans having about 1 cubic yard 
Shell for surfacing was brought by water for a distance of about 
40 miles and hauled in 25-1 ashel rts 900 feet from the scow the : : I: 
was :: provide a::y ail::, a 1 al ots i>r other drain- 
part of the work. 
ment consisted in shaping the old road, a considerable par: : 
en previously surfaced with sh structing a new >yster- 
shell surf ring qua 1 a was ;; rently not . 
_ - 1 a in -even sections having the following dia 
- width: 878 by 18 feer. 854 fee: by 2 feet 430 feet by IS feet, 
1 I by IS feet. 740 feet - 3 ' feet by IS feet, and 5 
15 feet, and the total area surfaced amounted to 11.935 square yards. The 
depth to which the shell spread varied from 2 inches to 13 inches, 
measured loose, according to the condition of the surface, and the comps 
depth was about one-third the I - Lepth. Material to the extent of 1,037 
- as moved in the e: _~ shels of shells were 
used in surfacing. In ah. 24,300 bushels of shells were delivered on the road at 
