Observations/Finding

As requested, our ASEC representative visited the site for the purpose of providing quality control inspection and testing services, visual observation techniques were employed to assure compliance with project drawing/specifications, applicable codes, and materials submittals. the following observations were observed on site this day.

Contractor continued work on the keyway, Fill was placed using a dozer.  Compunction was performed using a sheeps-foot roller.

Density testing was performed using a Troxler nuclear gauge (#3430, serial #85759). 

Density test results indicated that the compacted materials met the project specification of 95% of the maximum dry density obtained by the (Standard Proctor ASTM 698). See attached picture for approximate test locations.

Density testing result:

Moisture-Density Relationship (proctor) = 99.5 @ 22.1%

T1-elevation -2.5′ from the top of keyway, Yd 98.4, M%24.7, Compaction: 98.9%

T2-elevation -2.5′ from the top of keyway, Yd 97.03, M%24.7, Compaction: 97.5%

T3-elevation -2′ from the top of keyway, Yd 96.55, M%24.7, Compaction: 97.03%

T4-elevation -2′ from the top of keyway, Yd 95.2, M%24.7, Compaction: 95.7 %