Table 41 



Michigan City Harbor Structures 



Michigan City, Indiana 



Date(s) Construction and Rehabilitation History 



1884 Construction of the 1 ,000-f t-long east breakwater (Figure 105, Sec- 

 tion N) was completed. The breakwater was a timber crib structure 

 with a width of about 29 ft (Figure 106, Section N) . 



1902 Construction of the 2, 276-f t-long east pier (Figure 105, Sections G, 

 H, J, K, L, M-1, and M) was completed. The pier was stone-filled 

 timber crib structures (Figure 106) that ranged from about 18 to 



34 ft in width. 



1903 Construction of the 1 ,304-f t-long detached breakwater (Figure 105, 

 Sections A, B, and C) was completed. This breakwater also was a 

 timber crib structure (Figure 107, Sections A, B, and C) built on a 

 stone base and was 30 ft in width. 



1909 Construction of the 835-f t-long west pier (Figure 105, Sections D, E, 

 and F) was completed. The pier consisted of a stone fill between 

 woodpilings (Figure 107, Sections D, E, and F) that ranged in width 

 from about 14 to 20 ft. 



1911 The lakeward head of the detached breakwater (Figures 105 and 107, 

 Section C) was capped with a concrete superstructure. The crest el 

 of the breakwater was +10.5 ft Iwd. 



1923 The shoreward head of the detached breakwater (Figures 105 and 107, 

 Section A) was capped with a concrete superstructure to an el of 

 +6.1 ft Iwd. 



1925 The trunk section of the detached breakwater (Figures 105 and 107, 

 Section B) was capped with a concrete superstructure to an el of 

 +6.1 ft Iwd. 



1930 The shoreward portion of the east pier (Figures 105 and 106, Sec- 

 tions G, H, J, K, and L) was capped with concrete and/or stone 

 superstructures. The crest el of the pier was installed at +7.85 ft 

 Iwd, and the crest widths ranged from 18 to 34.25 ft in width. 



1931 The lakeward portions of the east (Figures 105 and 106, Sections M 

 and M-1) and west (Figures 105 and 107, Sections E and F) piers were 

 capped with stone and concrete superstructures. The crest el of the 

 east pier was +10.1 ft Iwd (Sections M and M-1). The crest of the 

 lakeward portion of the west pier (Section F) was +10.52 ft Iwd and 

 the adjacent portion (Section E) was installed at an el of +7.85 ft 

 Iwd. 



(Continued) 

 174 



