EP 1110-1-8
(Vol. 12)
31 July 03
Table 4-1. Dredging Plant Cost Factors (Continued)
Useful
Physical
Salvage
Prime Engine
Secondary Engine
WLS
RPR
Type of Plant
Life
Life
Value
Fuel Factor
Fuel Factor
%
%
YRS
HR
SLV
HPF
G
D
HPF
G
D
G
D
1
Mechanical Dredges (Large)
Clamshell - under 5 cy
8
16,000
0.05
70
0.072
0.039
60
0.062
0.033
22
24
90
Clamshell - 6 cy to 10 cy
13
26,000
0.05
70
0.072
0.039
60
0.062
0.033
22
24
100
Clamshell - 11 cy to 15 cy
20
40,000
0.05
70
0.072
0.039
60
0.062
0.033
22
24
110
Clamshell - 16 cy to 20 cy
25
75,000
0.05
70
0.072
0.039
60
0.062
0.033
22
24
120
Clamshell - 20 cy and over
30
90,000
0.05
70
0.072
0.039
60
0.062
0.033
22
24
130
All Other Types
(Bucket or Dipper)
25
90,000
0.10
70
0.072
0.039
60
0.062
0.033
22
24
120
Barge Mounted Crane with
Clamshell Bucket
Non - Dredging
Clamshell - under 6 cy
9
18,000
0.05
55
0.055
0.031
45
0.045
0.025
22
24
85
Clamshell - 6 cy to 10 cy
14
28,000
0.05
55
0.055
0.031
45
0.045
0.025
22
24
95
Clamshell - 11 cy to 15 cy
21
42,000
0.05
55
0.055
0.031
45
0.045
0.025
22
24
105
Barge Mounted Lifting Crane
25 Ton to 75 Ton, 45' Boom
9
18,000
0.05
40
0.040
0.022
30
0.030
0.017
22
24
80
75 Ton to 125 Ton, 60' Boom
14
28,000
0.05
40
0.040
0.022
30
0.030
0.017
22
24
90
Over 125 Ton, over 60' Boom
21
42,000
0.05
40
0.040
0.022
30
0.030
0.017
22
24
100
Barges (Used with Dredging)
Fuel or Water
20
90,000
0.05
20
0.021
0.011
20
0.021
0.011
18
20
60
Equipment or Work
20
90,000
0.05
20
0.021
0.011
20
0.021
0.011
18
20
60
Derrick
20
90,000
0.10
20
0.021
0.011
20
0.021
0.011
18
20
70
Anchor
20
90,000
0.05
20
0.021
0.011
20
0.021
0.011
18
20
60
Mooring Barge
20
90,000
0.05
20
0.021
0.011
20
0.021
0.011
18
20
60
Dump Scow
20
90,000
0.05
20
0.021
0.011
20
0.021
0.011
18
20
70
SLV = Salvage Value
HPF = Horsepower Factor
G = Gas
D = Diesel
WLS = Water, Lube and Supplies
RPR = Repairs
1
Sized by the largest bucket used (normally a mud bucket)
4-10
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