Table 81 



Vermilion Harbor Structures 



Vermilion, Ohio 



Date(s) Construction and Rehabilitation History 



1836- Construction of parallel piers at the mouth of the Vermilion River 

 1839 was completed. The piers extended to the -10 ft Iwd contour and had 



crest els of about +5.0 ft Iwd. They were stone-filled timber crib 



structures, and were 16 ft in width. 



1874 The east and west piers were extended to the -12 ft Iwd contour. No 

 other lakeward extensions have been made. The east pier is 458.5 ft 

 long, and the west pier is 1,333.5 ft long (Figure 214). 



1906- A heavy stone superstructure was installed on both piers (Figure 215) 

 1914 to els ranging from +6 to +6.5 ft Iwd. The crest width was 10 ft. 



1964 Rehabilitation of 450 ft of the west pier and 230 ft of the east pier 

 was completed (Figures 214 and 215). The crest els of these portions 

 were raised to +6.5 ft Iwd, and riprap was installed on the lakesides 

 of the structures. 



1973 Construction of an 864-ft-long detached breakwater (Figure 214) was 

 completed. The breakwater was a cellular steel sheet-pile structure 

 with 35-ft diameter cells. The cells were granular filled and capped 

 with concrete at an el of +10 ft Iwd (Figure 215) . The offshore 

 breakwater was model tested (Brasfield 1970) prior to construction. 



1986 The structures presently are considered in good condition. An aerial 

 view of the Vermilion Harbor structures is shown in Figure 216. 



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