Result
HOLD POINT RELEASED. No defects raised. Work may proceed to backfill, subject to compaction test result T-064-B (pending lab, expected 13 Jun). Sign-off below.
Checklist · ITP 4.2 pipe bedding & joint sealing
Thirteen items.
✓
Bedding material conforms to specification (Type 1, 150mm thickness)
Type 1 confirmed. Thickness 152–157mm measured at 3 chainages.
Pass
✓
Trench bottom level matches drawing (RL 12.4 ± 25mm)
Surveyed 0+220 to 0+260. Max deviation 12mm at 0+248.
Pass
✓
Trench width allows minimum 300mm clearance to pipe
Min measured 320mm at 0+232. Acceptable.
Pass
✓
RCP pipes inspected for damage before laying
All 8 lengths visually inspected. No cracks, chips, or spalling. Date stamps within spec.
Pass
✓
Pipe joints fully home — gap < 6mm
All 7 joints measured. Max gap 4mm.
Pass
✓
Rubber ring joints intact, lubricated, and oriented correctly
100% inspection. No twisted or pinched rings observed.
Pass
✓
Pipe alignment within tolerance (±10mm horizontal, ±5mm vertical over 6m)
Survey check on alignment at 4 points. Max 8mm horizontal deviation.
Pass
✓
Pipe grade matches design (0.45% min, 1.50% max)
Surveyed grade 0.62%. Within spec.
Pass
✓
No standing water in trench at time of inspection
Trench dewatered prior to pipe laying. Confirmed dry.
Pass
✓
Bedding density test sample taken (T-064-A)
Sample bagged and dispatched to lab 11:30. Result pending.
Pass
N/A
Cathodic protection clamps installed (where specified)
CP not specified for RCP in this section.
N/A
N/A
Concrete encasement applied (where specified)
Not specified for this chainage.
N/A
⧗
Backfill compaction to 95% MDD (T-064-B)
Sample dispatched 14:00 today. Result expected 13 Jun. Hold point on backfill release until pass confirmed.
Pending
Defects raised
None this inspection.
Photos taken
P01
Bedding @ 0+225
view S
P02
Joint, chainage 0+238
after seating
P03
Trench, full section
0+220 to 0+260
P04
Grade survey rod
0+260
P05
Comms duct diversion
chainage 0+248
P06
Density test bag
T-064-A
Inspected by
J. Park
Engineer of Record · Consulting
Witnessed by
K. Hassan
Site Engineer · Contractor