Grading

    1. Review grading, erosion control, and disposal plans as well as any permits and their requirements.
    2. Review the auger borings and other soils reports to discern the best possible use of the in-place soils.
    3. Inspect clearing and grubbing limits and measure quantities. Check contract documents for disposal requirements.
    4. Monitor salvaging of topsoil to ensure proper drainage and erosion control, and that all topsoil is salvaged.
    5. Identify unstable material below subgrade that should be sub cut and measured for final pay.
    6. Confirm that masonry walls, floor, foundations, and pavements near subgrade elevation are broke down or removed as required in the contract documents.
    7. Perform swamp excavation measurements by cross sectioning or 3D muck excavation prior to backfilling.
    8. Monitor soil selection and blending to ensure that embankment is composed of uniform soils. Check restrictions imposed by the specifications or other contract documents. Run tests on soils, which may be too high in silt or organics.
    9. Ensure large stone and rock are intermixed with soil to prevent voids and are properly placed in the embarkment according to specification Table 2106.3-3.
    10. Require embankment to be placed and compacted full width in layers not exceeding the thickness given in specifications or other contract documents.
    11. Maintain soil moisture control to prevent instability in the embankment or backfill.
    12. Test compaction. Correct failing material before application of the next lift.
    13. Require contractor to maintain a well-drained and shaped work area that preludes development of unstable pockets of embankments.
    14. Ensure hauling and leveling equipment is working over full width of embankment.
    15. Check for yielding in subgrade.  Correct any soft areas due to excessive moisture by drying and recompacting or by removing and replacing wet soils.  (Note, geotextiles maybe needed.  Contact Grading and Base Engineer for recommendations)
    16. Ensure that good drainage and erosion control techniques are maintained throughout grading operations. Ensure temporary erosion control devices are properly constructed, anchored, and maintained.
    17. Ensure culverts are “bridged” with sufficient embankment to prevent damage from hauling equipment and/or the Test Roller.
    18. Do not permit hauling over structures without verification from Engineer.
    19. Re-quire grading to proceed in orderly fashion with finishing carried through as work progresses.
    20. Maintain complete records that include locations, type of work, hours, equipment, quantities, soil types, layer thickness, relative moisture, degree of compaction, geotextile type, information on rutting or displacement, application and quantity of water, and weather information that may impact on grading activities.
    21. Ensure that erosion control and drainage are provided and maintained during periods of suspended operations.
    22. Verify that Test Roller weight and tire pressure specifications and dimensions are met before rolling.

References: Specifications 2101, 2105, 2112, 2130, 2573, Grading and Base Manual (Section.000), Contract Administration Manual, Schedule for Materials Control

Gopher State One-Call Phone Number
(800) 252-1166

Minnesota Statue 216D.06 – Damage to facility

Subdivision 1. (notice; repair)

  • If any damage occurs to an underground facility or its protective covering, the excavator shall notify the operator promptly. When the operator receives damage notice, the operator shall promptly dispatch personnel to the damage area to investigate. If the damage results in the escape of any flammable, toxic or corrosive gas or liquid or endangers life, health or property, the excavator responsible shall immediately notify the operator and the 911 public safety answering point, as defined in Section 403.02, Subdivision 5, and take immediate action to protect the public and property. The excavator shall also attempt to minimize the hazard until arrival of the operator’s personnel or until emergency responders have arrived and completed their assessment. The 911 public safety answering point shall maintain a response plan for notifications generated in this section.
  • An excavator shall delay backfilling in the immediate area of the damaged underground facilities until the damage has been investigated by the operator unless the operator authorizes otherwise. The repair of the damage must be performed by the operator or by qualified personnel authorized by the operator.
  • An excavator who knowingly damages an underground facility, and who does not notify the operator as soon as reasonably possible or who backfills in violation of paragraph (b), is guilty of a misdemeanor.

References: Specifications, contract documents, and Schedule of Material Control.