17264 Cheboygan Lock Downstream Wall - SSP Driving Logs - 2008 Dam Project.pdf

These documents are Pile Driving Records for the Cheboygan Lock & Dam project located in Cheboygan, Michigan, involving the State of Michigan's Department of Natural Resources Parks and Recreation Division and Ryba Marine Construction Company. The records detail the installation of PZ27 steel sheet piles using a Dawson HPH 2400 & MKT V5B hammer, with each record documenting a specific pile's driving process on February 7, 2008. The project is identified by RMCC Job #71517, and the records systematically track the depth, number of blows, and driving characteristics for each pile, with most piles being 25 feet long and driven to depths of approximately 150 feet.

The pile driving records consistently show a standard driving procedure using a V58 driving pattern, with piles being driven in pairs and using a cap block. The butt elevations are consistently around 5796, with tip elevations around 556.6. No concrete fill was used, and the weight of the piles without concrete is noted as N/A. The driving process involved using a Dawson HPH 2400 hammer, and each record is signed by a foreman, with various notes indicating challenges such as difficulty driving piles, issues with impact hammers, and the need for adjusted driving techniques. The records appear to be part of a comprehensive documentation process for a marine construction project at the Cheboygan Lock & Dam site.