PresqueIslePhaseI_1990_Part3.pdf

This is a set of technical engineering drawings and specifications for Phase II of recreational boating facilities at Presque Isle Harbor in Michigan, produced by the U.S. Army Corps of Engineers. The drawings detail construction specifications for a concrete walkway and breakwater system, including joint details, railing specifications, and navigation light bases. The project includes both North East and South breakwater components, with specific material requirements such as 8,400 tons of 3-4 ton cover stone, 11,740 tons of 5-8 ton cover stone, and various quantities of underlayer and bedding stone for both breakwater sections.

The drawings provide detailed technical specifications for construction elements including expansion joints, contraction joints, pipe railings, and concrete work. The project appears to be part of a larger marine infrastructure development, with the drawings showing specific measurements and engineering details for walkways, railings, and lighting systems. The full set of drawings consists of 20 sheets covering various aspects from site plans to navigation light details, with as-built drawings noting construction completed between January 1989 and October 1989 by Luedtke Engineering Company of Frankfort, Michigan.