TABLE II.-Report of operations of pipe-line hydraulic dredges for the fiscal year ending June 30, 1911-Continued.

Gamma.

Geyser.

Harrod, B. M.

Hecla.

TOWBOATS AND LAUNCHES-continued. launches. Extraordinary repairs to towboats and

Extraordimary repairs to barges.

250 pounds coal in 24 hours. 350 pounds coal in 24 hours..

$0.043.

$12,833.30

1,225 tons. 158 gallons gasoline (launch)... $1.90 to $2.69 per gallon..

1 Includes cost of Geyser outfit and 8 pontoons.

$17,484. 12

Average depth.

$0.0744.

1,566 tons.

Remarks.

No towboat or launch with the
dredge regularly. Dredging done
as follows: In Des Moines Rapids
Canal, Mundys Landing, mile
557; Mosier Island, mile 590;
Stag Island, mile 603; Pharrs
Island, mile 633.
Island, mile 573; and Masons

cost of outfit.
1 Includes contract price and

* Building 10 new pontoons.

Locality.

Miles below Cairo.

Locality.

Before After dredg- dredg

Miles below Caiго.

ing. ing.

2 No towboat attached to Gey

Before After dredg- dredg-| ing.

ing.

ser here.

Feet.

Feet.

Feet.

Fect.

Fritz.

101

11.0

Medleys... 31

8

13

Bullerton..

167

9.0

10.0

Upper

Island 35.

194

9.0

11.0

Point

Walts.

201

8.5

12.5

West

Memphis

(testing

new suc

Name

Name.

TABLE II.-Report of operations of pipe-line hydraulic dredges for the fiscal year ending June 30, 1911-Continued.

Howell, Capt. C. W.

Humphreys, Chas.

Indiana.

Iota.

gines.

gines.

Boilers:

Number and type..

Length.

1904.

Mobile, Ala.

U.S. Engineer Department..

United States.

6 months..

Wood...

$40,000 (includes cost of outfit as

snag boat).

Heating surface (total). Grate surface (total).

Diameter.

WORK PERFORMED.

Location of dredging..
District to which dredge belongs.
Depth before dredging, average..
Depth after dredging, average.
Character of material dredged.

Rate of advance per hour.
Amount dredged during year.
Average amount dredged:
Per hour.........

Per day.

794 square feet 65 square feet.

2,432 square feet..

54.83 square feet..

Cincinnati, Ohio, first..

Lower Ohio River..

3 feet..

8 feet...

Springfield Boiler & Manufactur

ing Co.

About 2 years.

Steel.

$100,479.79.

$3,000 (approximate).

192 feet. 44 feet.

7 feet.

2, 22-inch cylinder, 6-foot stroke, Mississippi River, side wheel. 2, 16 and 26 by 20 inches, horizontal tandem compound, con

densing.

7 Mississippi River.

30 feet.

44 inches.

3,769 square feet. 157.5 square feet.

Sand, gravel, with some bowl- Sand, gravel, lignite, and blue

ders and loose rock.

10 to 20 feet.
264,612 cubic yards.

238 cubic yards..
2,380 cubic yards.

TABLE II.-Report of operations of pipe-line hydraulic dredges for the fiscal year ending June 30, 1911-Continued.

$52,752.31

$18,947. 85