Observations/Finding

On the above date the writer was onsite and observed the Grading contractor continue excavating saturated organic sub grade conditions at toe of slope embankment west of design spillway.The contractor excavated the materials and replaced with a thicken bridge lift to stabilize the existing saturated sub grades.The writer performed density tests using a Troxler Nuclear model 3430,serial no.91643.The writer also performed a field proctor on in place fill materials that was mostly mixed with chirp materials.Compaction results appeared suitable for site specifications.The contractor continued placing additional fill over tested area as recommended .It was also recommended to place rip rap stone at discharge area of installed french drains areas being discharged into wooded area.

Performing density tests using Troxler Nuclear gauge

Compacting in place fill using vibratory sheet foot roller

Spreading fill using dozer

Fill placement using off road dump truck

Observed saturated sub grade after excavation