SUBGRADE INSPECTION Clause Samples
SUBGRADE INSPECTION. A. Notify Department when excavations have reached required sub-grade.
B. If the contractor encounters unforeseen sub-grade conditions that are considered unsatisfactory for construction or that do not meet compaction requirements, they will notify the department prior to any further excavation or site construction. If the Department determines that unforeseen unsatisfactory sub- grade is present, they will determine the additional work to be completed and submit a change order request through the contracting officer.
C. Proof-roll sub-grade below the pavements with heavy pneumatic-tired equipment to identify soft pockets and areas of excess yielding. Do not proof-roll wet or saturated sub-grades.
1. Completely proof-roll sub-grade in one direction, repeating proof-rolling in direction perpendicular to first direction. Limit vehicle speed to 3 mph .
2. Proof-roll with a loaded 10-wheel, tandem-axle dump truck weighing not less than 15 tons .
3. Excavate soft spots, unsatisfactory soils, and areas of excessive pumping or rutting, as determined by Architect, and replace with compacted backfill or fill as directed.
D. Authorized additional excavation and replacement material will be paid for according to Contract provisions for unit prices.
E. Reconstruct sub-grades damaged by freezing temperatures, frost, rain, accumulated water, or construction activities, as directed by Department, without additional compensation.
SUBGRADE INSPECTION. A. Notify the Owners Representative when excavations have reached required subgrade.
B. If the Owner’s representative determines that unsatisfactory soil is present, continue excavation and replace with structural fill or other backfill material as directed.
C. Proof-roll subgrade below the slabs and pavements with a pneumatic-tired and loaded 10- wheel, tandem-axle dump truck weighing not less than 30 tons to identify soft pockets and areas of excess yielding. Do not proof-roll wet or saturated subgrades.
1. Completely proof-roll subgrade in one direction, repeating proof-rolling in direction perpendicular to first direction. Limit vehicle speed to 3mph.
a. A complete proof roll is considered to consist of 2 passes in each proof roll direction with a pass equal to full coverage of the subgrade with a minimum of one double wheel width.
2. Excavate soft spots, unsatisfactory soils, and areas of excessive pumping or rutting, as determined by Owner’s Representative, and replace with compacted backfill or fill as directed.
D. Authorized additional excavation and replacement material will be paid for according to Contract provisions for changes in the Work.
E. Reconstruct subgrades damaged by freezing temperatures, frost, rain, accumulated water, or construction activities, as directed by Owner’s Representative, without additional compensation.
SUBGRADE INSPECTION. Notify Engineer when excavations have reached required subgrade.
SUBGRADE INSPECTION. A. Notify Engineer when excavations have reached required subgrade.
B. If Engineer determines that unsatisfactory soil is present, continue excavation and replace with compacted backfill or fill material as directed.
C. Reconstruct subgrades damaged by freezing temperatures, frost, rain, accumulated water, or construction activities, as directed by Engineer, without additional compensation.