Table 36 

 Waukegan Harbor Structures 

 Waukegan, Illinois 



Date(s) Construction and Rehabilitation History 



1903 Construction of the 3,211-f t-long south pier (Figure 93, Sections L, 

 M, N, 0, P, and R) was completed. The shoreward 1,812 ft of the pier 

 consisted of a wood-pile breakwater filled with stone (Figure 94, 

 Sections L, M, N, and 0). The structure was 14 ft in width. The 

 outer 1,399 ft of the pier was a stone-filled timber crib structure 

 (Figure 94, Sections P and R) with a width of 24 ft. With the excep- 

 tion of the shoreward 226 ft (Section L) , riprap toe protection was 

 placed along the toe of the pier. 



1904 The lakeward 998 ft of the north pier (Figure 93, Section K) and 

 588 ft of the north breakwater (Figure 93, Section F) were con- 

 structed. The pier and breakwater consisted of stone-filled timber 

 crib structures (Figure 95, Sections F and K) . The widths of the 

 pier and breakwater were 24 and 30 ft, respectively. Riprap toe 

 protection was placed on both sides of the structures. 



1906 The shoreward portion of the north pier (Figure 93, Section J) was 

 constructed. The structure consisted of parallel timber walls with 

 rock fill and a timber superstructure. The structure was 15 ft in 

 width. 



1930 The shoreward 1,573 ft of the south pier (Figure 93, Sections L and 

 M) was capped with a stone and concrete superstructure. The crest el 

 of the pier was +7.85 ft Iwd, and it had a width of about 17 ft 

 (Figure 94, Sections L and M) . 



1931 The existing north breakwater (Figure 93, Section F) was capped with 

 a concrete superstructure and extended 271 ft shoreward (Figure 93, 

 Section E) . A 1 ,033-f t-long shore connection (Sections A, B, C, 

 and D) was also constructed. The shoreward extension of the break- 

 water included a stone-filled concrete structure built on a stone 

 base (Figure 95, Section E) . The el of this extension and the new 

 breakwater superstructure (Figure 95, Section F) was +7.1 ft Iwd. 

 The shoreward 398 ft of the shore connection consisted of steel 

 sheetpiling with riprap on each side (Figure 95, Section A). The 

 remaining portion of the shore connection consisted of parallel steel 

 sheet piles ranging from 12 to about 17 ft in width (Figure 95, 

 Sections B, C, and D) . The area between the sheet piles was stone- 

 filled and capped with concrete. The shore connection portion of the 

 structure (Sections A, B, C, and D) had a crest el of +6.1 ft Iwd. 



1932 Concrete superstructures were built on the lakeward ends of the north 

 (Figure 93, Section K) and south (Figure 93, Sections N, 0, P, and R) 

 piers. The north pier had a parapet wall installed to an el of 



(Continued) 



154 



