Iowa Lake Dredging

From a lake restoration company HERE

An erosion control project at Lake Panorama, near Panora, Iowa, required the removal of 446,250 cubic yards of silt and sediment from the bottom of this privately owned 1400-acre lake.

...In the meantime, the lake region, located 40 miles from a major metropolitan area in wet central Iowa, has become a thriving site for development. Approximately 40 new homes are being built on the lake annually.

...This property generates additional revenues for the community. The continuing growth in the lake region affirms the cooperative’s decision to make long term investments such as a dredging operation.

Dredge Operation (10/90 - 7/92 inclusive)

A) Two-man crew plus supervisor
B) Three shifts per day, 5 days per week, 7 months per year
C) Total hours on Caterpillar 3406 diesel engine rated 309 HP continuous: 3,000
D) Fuel used: 35,295 U.S. Gallons
E) Cubic yards of material pumped: 446,250
F) Fuel consumption: 11 U.S. gallons per hour
G) Operating cost - (fuel, maintenance, labor, insurance, spare parts and pipeline depreciation) - $190,102
H) Unit dredging costs: $0.426 per cubic yard
I) Average dredge production: 150 cubic yards per hour
J) Average cutting depth: 7-12 feet