COLD REGIONS TECHNICAL DIGEST NO. 96-1
22
a. Single rectangular
timber boom. Typical
dimensions are 14 22
in. (36 56 cm).
b. Boom constructed of
double timbers con-
nected with steel angles
c. 2.5 5.5 ft (0.75
1.5 m) rectangular
steel pontoon as used
on the Allegheny
River at Oil City,
Pennsylvania.
d. Circular steel pontoon
e. Boom unit constructed of plastic
boom, 30-in.- diam. (76-
pipe, banded to the boom cable with
cm), as used on Lake St.
wire hoops.
Peter on the lower St.
Lawrence River.
f. Double steel pipe
pontoon booms used
on the Beauharnois
Canal. Pipe diameter
in 3 ft (0.9 m). This
boom withstood a
maximum measured
force of 3.2 kip/ft (47
kN/m).
11. Successful ice boom unit designs.
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