Specifications include, but are not limited to: Project will improve drainage at existing stream crossing by re-aligning channel and installing culvert and elevating roadway by building the grade raise. The phases of construction are anticipated to be as follows: Some phases may occur simultaneously. -Material site development to produce selected material, type A, Subbase, Grading F and Aggregate Surface Course, Grading E-1. Transport materials to the site staging area if desired. Identify source of Riprap, Class I and Riprap, Class II. -pre-construction surveying and clearing -install and perimeter Control Pollution prevention devices. -divert creek using selected method (existing conduits or new or via pumping) and excavate trench for the SPP arch 13’ 4” Span, 9’4” Rise culvert.
