Observations/Finding

9/21/22

As requested by CWM James Higgins, the site was visited by our AS Engineering and Consulting (ASEC) representative noted above, 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.

Site Observations:

Contractor continued work on the taxiway area from STA 4011+00 to STA 409+00. Fill was placed and compaction testing requested.

Contractor continued work on the taxiway area from STA 404+00 to STA 406+00.  This area requires some soil remediation which will be completed another day.

Density testing was performed using a Troxler nuke gauge (#3430, serial #29588).

Density testing results:
P3 Moisture Density Relationship (proctor) – 118.8 pcf @ 13.0%
P5 Moisture Density Relationship (proctor) – 122.6 pcf @ 9.6%

T1 – elevation 994.0, STA 409+50 north shoulder, P3, DD 107.7, M% 14.8, compaction: 90.7%

T2 – elevation 994.0, STA 409+50 center, P3, DD 111.0, M% 12.1, compaction 93.5%

T3 – elevation 994.0, STA 409+50 south, P3, DD 106.3, M% 12.9, compaction 89.5%

T4 – elevation 997.3, STA 410+50 center, P5, DD 116.0, M% 10.7, compaction 94.6%

T5 – elevation 997.3, STA 410+50 south, P5, DD 120.1, M% 8.8, compaction 97.9%

T6 – elevation 997.3, STA 410+50 north, P5, DD 117.7, M% 10.4, compaction 95.9%

T7 – elevation 994.8, STA 409+50 north, P3, DD 111.5, M% 15.3, compaction 93.8%

T8 – elevation 994.8, STA 409+50 center, P3, DD 109.5, M% 12.9, compaction 92.1%

T9 – elevation 994.8, STA 409+50 south, P3, DD 109.9, M% 11.9, compaction 92.5%

T10 – elevation 995.3, STA 409+50 north, P3, DD 104.7, M% 13.3, compaction 88.1%

T11 – elevation 995.3, STA 409+50 center, P3, DD 113.1, M% 11.6, compaction 95.2%

T12 – elevation 995.3, STA 409+50 south, P3, DD 109.7, M% 12.5, compaction 92.4%

Density testing on taxiway

Fill being placed on taxiway

Fill being placed on taxiway