UFGS 31 00 00 Earthwork - WBDG | WBDG

1 **USACE / NAVFAC / AFCEC / NASAUFGS-31 00 00 (August 2008)Change 2 - 02/21----------------------------------- -Preparing Activity: USACES upersedingUFGS-31 00 00 (July 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSR eferences are in agreement with UMRL dated October 2021**SECTION TABLE OF CONTENTSDIVISION 31 - EARTHWORKSECTION 31 00 00 EARTHWORK08/08, CHG 2: 02/21 PART 1 GENERAL MEASUREMENT PROCEDURES Excavation Piping Trench Excavation Rock Excavation for Trenches Topsoil requirements Overhaul requirements Select Granular Material PAYMENT PROCEDURES Classified Excavation Piping Trench Excavation Rock Excavation for Trenches Unclassified Excavation Classified Borrow Unclassified Borrow Authorized Overhaul Sheeting and Bracing

2 Timber Sheeting Steel Sheeting and Soldier Piles CRITERIA FOR BIDDING REFERENCES DEFINITIONS Satisfactory Materials Unsatisfactory Materials Cohesionless and Cohesive Materials Degree of compaction Overhaul Topsoil Hard/Unyielding Materials Rock Unstable Material Select Granular Material General RequirementsSECTION 31 00 00 Page 1 California Bearing Ratio Values Initial Backfill Material Expansive Soils Nonfrost Susceptible (NFS)

3 Material Pile Supported Structure SYSTEM DESCRIPTION Classification of Excavation Common Excavation Rock Excavation Blasting Dewatering Work Plan SUBMITTALSPART 2 PRODUCTS requirements FOR OFFSITE SOILS BURIED WARNING AND IDENTIFICATION TAPE Warning Tape for Metallic Piping Detectable Warning Tape for Non-Metallic Piping DETECTION WIRE FOR NON-METALLIC PIPING MATERIAL FOR RIP-RAP Bedding Material Grout Rock CAPILLARY WATER BARRIER PIPE CASING Casing Pipe Wood SupportsPART 3 EXECUTION STRIPPING OF TOPSOIL GENERAL EXCAVATION Ditches, Gutters, and Channel Changes Drainage Structures Drainage Dewatering Trench Excavation requirements Bottom Preparation Removal of Unyielding Material Removal of Unstable Material Excavation for Appurtenances Jacking, Boring.

4 And Tunneling Underground Utilities Structural Excavation SELECTION OF BORROW MATERIAL OPENING AND DRAINAGE OF EXCAVATION AND BORROW PITS SHORING General requirements Geotechnical Engineer GRADING AREAS FINAL GRADE OF SURFACES TO SUPPORT CONCRETE GROUND SURFACE PREPARATION General requirements Frozen Material UTILIZATION OF EXCAVATED MATERIALS BURIED TAPE AND DETECTION WIRE Buried Warning and Identification Tape Buried Detection WireSECTION 31 00 00 Page 2 FILLING, BACKFILLING AND compaction Trench Backfill Replacement of Unyielding Material Replacement of Unstable Material Bedding and Initial Backfill Class I Class II Sand Gravel and Crushed Stone Final Backfill Roadways, Railroads, and Airfields Sidewalks.

5 Turfed or Seeded Areas and Miscellaneous Areas Backfill for Appurtenances SPECIAL requirements Gas Distribution Water Lines Heat Distribution System Electrical Distribution System Sewage Absorption Trenches or Pits Porous Fill Cover Pipeline Casing Bore Holes Cleaning End Seals Rip-Rap Construction Bedding Placement Stone Placement Grouting EMBANKMENTS Earth Embankments Rock Embankments SUBGRADE PREPARATION Proof Rolling Construction compaction Subgrade for Railroads Subgrade for Pavements Subgrade for Shoulders Subgrade for Airfield Pavements SHOULDER CONSTRUCTION FINISHING Subgrade and Embankments Capillary Water Barrier Grading Around Structures PLACING TOPSOIL TESTING Fill and Backfill Material Gradation In-Place

6 Densities Check Tests on In-Place Densities Moisture Contents Optimum Moisture and Laboratory Maximum Density Tolerance Tests for Subgrades Displacement of Sewers DISPOSITION OF SURPLUS MATERIAL-- End of Section Table of Contents --SECTION 31 00 00 Page 3**USACE / NAVFAC / AFCEC / NASAUFGS-31 00 00 (August 2008)Change 2 - 02/21----------------------------------- -Preparing Activity: USACES upersedingUFGS-31 00 00 (July 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSR eferences are in agreement with UMRL dated October 2021**SECTION 31 00 00 EARTHWORK08/08, CHG 2: 02/21**NOTE: This guide specification covers the requirements for Earthwork activities for buildings, utilities, roadways, railroads, and to UFC 1-300-02 Unified Facilities Guide Specifications (UFGS) Format Standard when editing this guide specification or preparing new project specification sections.

7 Edit this guide specification for project specific requirements by adding, deleting, or revising text. For bracketed items, choose applicable item(s) or insert appropriate information and requirements not required in respective project, whether or not brackets are , suggestions and recommended changes for this guide specification are welcome and should be submitted as a Criteria Change Request (CCR).**PART 1 GENERAL**NOTE: Consult with a soils engineer while editing this section to determine specific requirements for each following information will be indicated on the project drawings:1.

8 Surface elevations, existing and new;2. Location of underground obstructions and existing utilities;3. Location and record of soil borings and test SECTION 31 00 00 Page 4pits. Include ground water observations and topsoil thickness encountered in boring, soil classifications, and properties such as moisture content and Atterberg limit determinations;4. Location of borrow and disposal area if located on Government property;5. Clearing stripping and grubbing limits, if different from clearing limits;6.

9 Areas to be seeded;7. Hydrological data where available;8. Shoring and sheeting required (trench protection is specified in Corps of Engineers Manual EM 385-1-1); and9. Pipe trench excavation Location and limits of hard material (rocks);11. Details of special construction such as under railroad and highways right-of-way requirements for jacking and boring;12. Details of sewage absorption trenches, absorption pits, and subsurface drains.** MEASUREMENT PROCEDURES**NOTE: These paragraphs will be deleted when lump sum payment for work under this section is desired and when the work covered by this section is included in one lump sum contract price for the entire work covered by the Invitation for Bids.

10 ** ExcavationThe unit of measurement for excavation and borrow will be the cubic meter yard, computed by the average end area method from cross sections taken before and after the excavation and borrow operations, including the excavation for ditches, gutters, and channel changes, when the material is acceptably utilized or disposed of as herein specified. The measurements will include authorized excavation of rock ()