DIVISION 1 - GENERAL REQUIREMENTS - IDEAS-EC

SECTION 02320UTILITY TRENCHING AND BACKFILLINGPART 1 - GENERAL1.01 SECTION INCLUDES:A. Trenching, backfilling and compacting for all underground utilities.B. All construction within the entrance road right of way shall be coordinated with, and approved by, theContracting Officer. Access to and from the National Monument shall be maintained during peakvisitation hours.1.02 REFERENCESA. American Society for Testing and Materials (ASTM)1. D698, Standards test methods for Laboratory Compaction Characteristics of Soil UsingStandard Effort.2. D1557, Test Methods for Moisture - Density Relations of Soils and Soil Aggregate Mixtures,Using 10 pound Hammer and 18 IN drop3. D4253, Test Methods for Maximum Index Density and Unit Weight of Soils Using aVibratory Table4. D4254, Test Method for Minimum Index Density and Unit Weight of Soils and Calculationof Relative DensityB. “Greenbook” Standard Specifications for Public Works Construction (latest edition)1.03 SUBMITTALSA. Certifications and Testing consistent with Section 01330 and including1. Furnish copy of certifications on granular materials for trench bedding and stabilization2. Furnish copy of density reports1.04 JOB CONDITIONSA. Field locate all existing utilities, buried piping, and all other surface and sub-surface features prior toconstruction. Take necessary precautions to protect existing utilities from damage due to constructionactivity. Any features damaged by contractor’s activities shall be replaced to pre-constructioncondition at no additional expense to the government. Any field located existing conditions impactingnew work shall be immediately brought to the contracting officer’s attention.B. All connections to existing mains shall be made by the contractor only after the proposed connectionprocedure and work schedule has been reviewed and approved by the contracting officer. Thecontractor shall submit a written request to the contracting officer a minimum of 48 hours prior toscheduling any connections. The request shall outline the following:1. Points of connection, fittings to be used, and method of flushing and disinfection.2. Estimated construction time for the connection and disinfection.02320 - 104/08 UTILITY TRENCHING AND BACKFILLING