Table 33 (Concluded)
Construction and Rehabilitation History
A 216-ft-long south pier extension was constructed (Figure 86, Sec-
1910
tion L. The pier was a stone-filled concrete structure built on
)
woodpilings and stone. It was 18 ft in width and had a crest el of
ft
A 980-ft portion of the detached north breakwater was capped with a
1924
The crest el of the
concrete superstructure (Figure 87, Section
ft
structure
Construction of the southerly 1,744-ft portion of the north break-
water and the entire south breakwater (Figure 87, Section E) was com-
1929
pleted during this time. The breakwater was a stone-filled concrete
structure built on stone. It had a crest width of 6.7 ft and an el
ft lwd. The outer 54 ft of the north breakwater consisted of
of
three rectangular caissons.
A 530-ft-long section of the attached north breakwater (Figure 87,
1952
and a 68-ft-long portion (Section B2) were repaired.
Section
Steel sheet piles were driven on both sides of the existing timber
crib structure.
The 1,385-ft-long south pier was constructed by the City of Milwaukee
1953
(Figure 86, Section J. It consisted of steel sheet piles on the
)
channel side which were backfilled with earth. The existing pier
(time of construction unknown) was completely covered by the new
structure.
A 1,940-ft-long portion of the north breakwater was repaired (Fig-
and C- ). Steel sheetpiling was driven adjacent
1
1959
to both sides of the timber crib structure.
A
tion C) was repaired. Steel sheet piles were installed on each side
1964
of the existing timber crib.
A portion of the north breakwater was rebuilt (Figure 87, Sec-
Steel sheet piles were installed on each side of the
1977
tion
existing structure with the width varying from 30 to 32.5 ft. The
voids were filled with stone, and the concrete cap and parapet wall
were reconstructed. A parapet wall also was installed on an adjacent
portion of the breakwater (Section B )
2.
1984
A site inspection of the north breakwater revealed some sections in
good shape and others requiring repair and maintenance.
Repair of the head of the south breakwater was completed for a cost
1985
of 0,942. A new caisson was constructed and capped with concrete.
Stone, ranging from 3 to 6 tons, was placed around the new caisson
for toe protection.
1986
The breakwaters and piers are presently considered to be in fair
condition.
142
Previous Page
