46 CFR 170.300 - Special consideration for free surface of spoil in hopper dredge hoppers.

Regulations last checked for updates: May 04, 2025

Title 46 - Shipping last revised: Mar 17, 2025

View all text of Subpart I [§ 170.285 - § 170.300]

§ 170.300 - Special consideration for free surface of spoil in hopper dredge hoppers.

The calculations required by this subchapter for each self-propelled hopper dredge must include—

(a) The free surface effect of consumable liquids and the free surface effect of the dredged spoil in the hoppers; and

(b) Either of the following assumptions when performing the calculations required by § 174.310(b) of this chapter:

(1) If the dredged spoil is assumed to be jettisoned, the free surface of the dredged spoil may be disregarded.

(2) If the dredged spoil is not assumed to be jettisoned. the free surface of the dredged spoil must be calculated.

[CGD 76-080, 54 FR 36977, Sept. 6, 1989]

authority: 43 U.S.C. 1333; 46 U.S.C. 2103,3306,3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; Department of Homeland Security Delegation No. 0170.1

source: CGD 79-023, 48 FR 51010, Nov. 4, 1983, unless otherwise noted.

cite as: 46 CFR 170.300