Table 24 (Concluded)
Construction and Rehabilitation History
Date(
was stone filled and capped. The outer end of the north pier, how-
ever, was constructed with a 47.75-ft-diameter cellular sheet-pile
The cell was filled with stone and
structure (Figure 64, Section
.
ft
gravel and capped with a concrete superstructure at an el of
1944
An 880-ft-long portion of the south pier (Figure 63, Section F) was
reconstructed similar to other sections of the pier. Steel sheet
piles were installed forming a pier width of 22 ft. The voids were
stone filled, and the structure was capped with a concrete super-
ft lwd (Figure 64,
structure installed with a crest el of
Section F ) .
1946
The shoreward 525-ft length of the south pier was modified (Fig-
ures 63 and 64, Section E. A rubble-mound superstructure was con-
)
structed on the existing structure. The crest width of the new
superstructure was 4 ft, and it had an el of
ft lwd.
1954
The cellular sheet pile at the lakeward end of the north pier was re-
paired (Figure 63, Section
1955
A 613-ft-long section of the south pier was repaired (Figure 63,
Section
1963
Repairs were made to a 508-ft-long section of the south pier (Fig-
ure 63, Sections A and B) and a 1,164-ft-long portion of the north
pier (Figure 63, Sections A , B, and
1965
An 880-ft-long portion of the south pier was repaired (Figure 63,
Section F.
)
1974
The cellular sheet-pile north pierhead was again repaired (Figure 6 3 ,
Section D.
)
The lakeward end of the south pier (Figure 63, Section D) experienced
1977
some settlement and was observed slightly leaning toward the channel.
Additional riprap placement was completed in the area.
A site inspection of the structures indicated that the north pier was
1982
in very good condition and that the south pier was generally in good
condition. The settlement of the lakeward end of the south structure
(Figure 63, Section D) appeared t o have stabilized since placement of
the riprap in 1977. The concrete superstructure of the portion of
the pier needed maintenance however.
1986
The piers have experienced reconstruction, repairs, and maintenance
during their lifetime, and they presently are considered in good
condition.
106
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