Table 97 



Bird Island Pier 



Black Rock Channel, Buffalo, New York 



Date(s) Construction and Rehabilitation History 



1822- Construction of a 6,606.5-f t-long portion of the pier (Figure 271, 

 1825 Section Z) was completed during this time period. The structure con- 

 sisted of stone-filled timber cribs that were 18 ft in width (Fig- 

 ure 272, Section Z) . The pier originally included a timber deck. 



1837- The entire 6, 605. 5-f t-long structure (Figure 271, Section Z) was re- 



1937 built during this period. The pier was capped with stone to an el of 

 about +9 ft Iwd, and stone slopes were included on each side of the 

 pier (Figure 271, Section Z) . 



1869- A 3, 100-f t-long extension of the pier (Figure 271, Section Y) was 

 1892 completed during this time. The extension consisted of stone-filled 



timber cribs that were 20 ft in width (Figure 272, Section Y) . A 



timber deck was installed initially. 



1928- The 3, 100-f t-long pier extension (Figure 271, Section Y) was capped 

 1929 with a concrete superstructure. The maximum el of the superstructure 

 was +10 ft Iwd (Figure 272, Section Y) . 



1928- An additional 800-f t-long extension of the pier (Figure 271, Sec- 



1938 tion X) was completed during this period. This extension was a 

 rubble-mound structure with an 8-ft-wide crest with an el of +10.2 ft 

 Iwd. Side slopes were 1V:1.3H, and armor stone weighed 3 tons (mini- 

 mum) with not less than 50 percent of 5 tons or more. 



1986 No records of maintenance to the pier are available, and the present 

 condition is not known. 



396 



