Observations/Finding

9/15/22

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 in the taxiway area from STA 4011+00 to STA 406+00, E-Line between E1 to E2, H-Line between H1 to H3, and backfilled along the retaining wall west of A11. Fill was placed and compaction testing reqested.

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%
P14 Moisture Density Relationship (proctor)- 119.8 pcf @ 14.0%
Lime Proctor – 112.6 pcf @ 16.6%

T1 – elevation 996.5, STA 411+50 center, LP, DD 108.3, M% 16.3, compaction 96.2%

T2 – elevation 996.5, STA 411+50 north, LP, DD 110.9, M% 16.1, compaction 98.5%

T3 – elevation 996.5, STA 411+50 south, LP, DD 107.2, M% 16.4, compaction 95.2%

T4 – elevation 1003.9, H3, P14, DD 110.0, M% 13.6, compaction 91.8%

T5 – elevation 1002.0, 30’east of H2, P14 DD 111.7, M% 10.3, compaction 93.2%

T6 – elevation 1000.9, 30′ west of H2, P14, DD 115.1, M% 12.0, compaction 96.0%

T7 – Backfill along retaining wall west of A11(1st lift), P14, DD 114.2, M% 14.1, compaction 95.3%

T8 – Backfill along retaining wall west of A11(1st lift), P14, DD 112.1, M% 14.1, compaction 93.6%

T9 – Backfill along retaining wall west of A11(2nd lift), P14, DD 110.8, M% 16.5, compaction 92.5%

T10 – Backfill along retaining wall west of A11(2nd lift), P14, DD 111.6, M% 14.9, compaction 93.2%

T11 – elevation 991.6, STA 410+00, P3, DD 109.3, M% 15.9, compaction 92.0%

T12 – elevation 991.6, STA 410 north, P3, DD 110.9, M% 14.9, compaction 93.4%