60 BULLETIN 583, U. S. DEPARTMENT OF AGRICULTURE. 
TABLE 35.—Summary of cost of construction. 
q POWERS FERRY ROAD. 
Earth excavation: 
Materialsaue. sou ecsaes Le ee NAS AN OS Lah AC ale re A 
NBS cyuasigo manera Ge 2 wR eae en ae ay a Pal ye one A 
GeneraliiexPenseee yy eee ese ah asia ye ele al le oly A i 
Convict labora aaa Se ra rac ur vgs ase aes eae te 
Quantity of excavation, 30,255 cubic yards. 
Cost per cubic yard, 20.6 cents. 
Rock excavation: 
Bquipmemtel io. fc cose ole aienon Bana fem aa 
General expense. 203 25 joc). iets Wet Seiler yay Geld ead gi 
Comvactilabors ie eee al. cee cie dias CUCU INGE Uns oes, Rta 
Quantity of excavation, 3,548.6 cubic yards. 
Cost per cubic yard, 54.3 cents. 
Clearing and grubbing: 
SUPER VAST ORIN ase NSN MOTI SR EE SRN RAO FAs SUL Sus TNE 
DOTS 09 20) aU Se ea pat ees es aah eR aR IRAN DE I IR  S2 
General expense. o.oo... ee tyes ¢ 2 gates ON Pe hae Vs 
Convichlabor: sess e408. aig AM Mea 28 Ui eS lel 
Area cleared and grubbed, 9 acres. 
Cost per acre, $68.24. 
15-inch vitrified-clay pipe: 
Wig SUL OE-VASTOTI Ae hy Ahi yh aE UT Bekele AIS orto TAR a 
Material ser se eae ee acres Wy hae te ey pe thare ayaa Moda di eg asian Sh 
IYO ENC e470) 0\ at AOE RO NIN ee gl RRRIN LUNN | AMR NN gay tlm RR 
Generabexmense foe cscs cae aan eee) Mk ata NC Ie eee AAG 
Convict labor nee eee ieee ep yrml tie LUN uc ete Rh 
Amount of pipe laid, 288 linear feet. 
Cost per linear foot, 44 cents. 
Concrete masonry: 
Amount of masonry, 62 cubic yards. 
Cost per cubic yard, $4.83. 
Cost. 
$442. 65 
2, 462. 85 
314. 19 
Per cent. 
te 
