| S.No. | Checkpoint | IS Requirement | Status |
|---|---|---|---|
| A. PRE-SETTING OUT PREPARATIONS | |||
| A1 | Design drawings and working drawings review Acceptance: Drawings reviewed; dimensions verified; design approval obtained; changes noted | Cl. 3.1 — Design verification | |
| A2 | Setting out data and reference points Acceptance: Coordinates extracted from design; reference to survey control points; data sheet prepared | Cl. 3.2 — Coordinate establishment | |
| A3 | Survey instrument calibration and checking Acceptance: Total Station/GPS calibrated; accuracy verified; batteries charged; reflectors available | Cl. 3.3 — Equipment readiness | |
| A4 | Site access and obstruction clearance Acceptance: Site cleared for survey; line of sight available; ground firm for equipment; safety measures | Cl. 3.4 — Site readiness | |
| B. SETTING OUT EXECUTION | |||
| B1 | Orientation of structure on site Acceptance: Structure oriented per design; north direction confirmed; centerline established; marked | Cl. 4.1 — Alignment verification | |
| B2 | Corner and key point location Acceptance: Corners set to ±50 mm; key points within tolerance; offset stakes placed; distance verified | Cl. 4.2 — Dimensional accuracy | |
| B3 | Horizontal alignment and skew angles Acceptance: Angles to ±0.01°; skew angles verified; diagonals measured for rectangle check | Cl. 4.3 — Angle accuracy | |
| B4 | Vertical datum and reduced levels Acceptance: RL tied to BM; levels transferred to site; level marks on profiles; accuracy ±50 mm | Cl. 4.4 — Elevation control | |
| B5 | Setting out marks and temporary benchmarks Acceptance: Marks on pegs/paint; TBM established for ongoing use; protected; documented with sketches | Cl. 4.5 — Mark permanence | |
| C. DIMENSIONAL VERIFICATION AND CHECKS | |||
| C1 | Overall structure length and width Acceptance: Measured dimensions ±100 mm of design; recorded in field book; diagonals equal for rectangles | Cl. 5.1 — Overall dimensions | |
| C2 | Spacing and intervals (piers, supports, etc.) Acceptance: Spacing ±50 mm; cumulative tolerance tracked; adjustment points identified if drift detected | Cl. 5.2 — Internal spacing | |
| C3 | Offset and setback distances Acceptance: Offsets ±50 mm; setbacks measured; road shoulder line verified if applicable | Cl. 5.3 — Lateral positioning | |
| C4 | Grade/slope and elevation transitions Acceptance: Grade line ±30 mm; transitions smooth; slope verified at intervals | Cl. 5.4 — Vertical alignment | |