20160186 Ver 3_Additional Breasting Line_20200710

Additional Breasting Line (S-3)
The Design -Build Team has determined a need for an additional breasting line to establish a new safe
harbor for their crane/barges, as it has been difficult accessing the current safe harbor locations at
breasting lines S-1 and S-2. The Crofton 4600 crane/barge has been tied up at the remnant
bridge/fishing pier, and if shoaling continues in the area access may be cut off to the existing breasting
lines. Barge access to the existing breasting lines has been limited by shallow water depths due to the
formation of a recent sand bar in this area. The proposed breasting line (S-3) would be located in an area
with water depth levels greater than 12 feet, allowing tugboats and the crane/barge system to easily
maneuver to this accessible safe harbor. The proposed breasting line (S-3) will be approximately 400
feet in length, and is composed of eleven 36" diameter piles at 40 foot spacing. The included revised
permit drawings show the additional proposed breasting line on permit sheet 6A, and Table 1 describes
the location. The safe harbor location for the additional breasting line must be located on the east side
of the Marc Basnight bridge to eliminate the extraneous breakdown of the Crofton 4600 crane/barge for
it to pass under the navigational height clearance of the Marc Basnight bridge.
Table 1. South End Additional Breasting Line (S-3)
Breasting Line S-3 Coordinates
Latitude (DD)
Longitude (DD)
Starting point - South
35.76924
-75.53153
End point - North
35.77026
-75.53102
The proposed breasting line is approximately 300 linear feet due east from the current navigation
channel. The largest barge that would utilize the breasting line is 75 feet at its widest point. Barges
moored at the proposed breasting line would not be located within the current USACE authorized 400'
wide dredge channel. The proposed breasting line (S-3) would be in use until demolition is complete,
which is anticipated to be approximately one year, and removed along with other breasting lines at the
completion of the project.