24 BULLETIN 284, U. S. DEPARTMENT OF AGRICULTURE. 
the contracts let amounts to $597,458.79. Highways Nos. 5, 6, 7, 8, 14, and 16, 
totaling 62 miles, still remain to be contracted for under the $900,000 bond 
issue. The work done has proved so successful that steps have been taken to 
raise $300,000 additional for the construction of a bridge over the Calcasieu 
River, and to extend the highway system now being constructed. 
Considerable work was done by convicts in the manufacture of concrete pipe 
and concrete piles. The following were the unit costs for this work: 
12-inch concrete pipe at 12 cents per foot; 
18-inch concrete pipe at 18 cents per foot; 
15-foot concrete piles at $11.60 each; 
25-foot concrete piles at $14.80 each. 
A list and description of the roads on which contracts have been awarded to 
date follows: 
Highway No. 1 consists of 9 miles of 15-foot gravel road, 6 inches thick, with 
earth shoulders; and 54 miles of 9-foot brick road on a 5-inch gravel base, part 
with earth shoulders and part with 6-inch gravel shoulders. The shoulders are 
3 feet wide. All bridges and culverts are of reinforced concrete, and the pipe 
culverts are provided with concrete head walls. The following unit prices 
obtained : 
Clearing and grubbing, complete____---__=_-.-___ Tap ae ky Va gs Le eae $300. 00 
IxeCavations, per icubic vard 2.22 240. 2 4s se ee ee ee eee . 195 
Embankment... per, Cubic syand ook 2) a oe ey. 
Minnined pipe, 12-inch sper foot, «complete. {2a Ss ee eee . 70 
VMitritied spipe. 1Sanch,: per: foot,.complete:. S2—. s e e 1. 00 
Concrete pipe, 12-inch, per foot, hauling and placing only__________- . 40 
Concrete pipe, 18-inch, per foot, hauling and placing only___________- . 50 
Gravel road.) per: SQuare. yards a. 8. 2 cae a as Sa ae a Soe 73a 
Vertical fiber brick on gravel base, per square yard-=——"*=2.2 20 es 1.85 
Concrete piles, hauling and driving, per linear foot________-_____-.__= 1. 00 
Conercte-ns:2.° 4. sper -Cubie yards 228s a oe a ee ee ee 9, 00 
Concretesel = 35-65 per. cubieuyards 2 = = ee ES ca ee 7.50 
Remtoreme ‘steele per pound... 22 Se ea ee ee . 03 
Highway No. 2 consists of 12 miles of brick road 9 feet wide, on a 5-inch 
gravel base; 9 miles of 15-foot gravel road, 6 inches thick; and considerable 
bridge work. This work was let in three contracts. 
Contract No. 1, for sections 1 and 3, was let at the following unit prices: 
Glearine and ecrubbing, complete...) 2 2 ee ee eee $225. 00 
bxcavation, sper Gubie syand sos ye 4 a ee . 24 
Bmbanmikment, per <cubic yard. 22 = .20)) 2 6 ee eee eee . 24 
Mitrined pipe 12-ineh. per foot, complete es ee ee ees . 60 
Vitrified: pipe, 18-inch,- per foot, completes .# 32.5 sm Siew) alee igen mee .95 
Conerete pipe, 12-inch, per foot, hauling and placing only__________.- . 40 
Concrete. pipe, 18-inch, per foct, hauling and placing only___________- . 50 
Gravel roads; Per SGuare, yarda = 226 26. Reh eee ee ae et ee = ae 
Vertical fiber brick on gravel.base, per square yard____-—---__-=-_--== 1. 67 
Contract No. 2. for bridges and culverts on sections 1 and 3, was let at the 
following unit prices: 
Gonerete ise 234..iper ‘cubic vardele. le Se ee ee ee $8.10 
Concrete, 1:3:6, per cubic yare (EA0 
HRemLoreineg steel: per pound. =). 222) i ee . 0575 
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