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Checklist · QC-BRG-CHK-002
Bridge Substructure Checklist
21 checkpoints across 6 sections. After substructure concrete work; before superstructure installation
21 Checkpoints
6 Sections
Once per substructure component
Bridge Engineer, QC Inspector

Checklist Preview

S.No.CheckpointIS RequirementStatus
A. STRUCTURAL CONCRETE AND FINISHING
A1Concrete surface finish quality
Acceptance: No honey-combing; void percentage ≤ 0.5%; surface smooth; water repellent if required
Cl. 3.1 — Surface must be smooth and clean
OK
NC
NA
HOLD
A2Concrete cracks and defects
Acceptance: Shrinkage cracks ≤ 0.2 mm wide; no structural cracks; defects repair acceptable; ≤ 0.5% area
Cl. 3.2 — Cracks controlled and limited
OK
NC
NA
HOLD
A3Concrete dimensions and verticality
Acceptance: Dimensions ±25 mm of design; verticality ≤ 1:500; plumbness verified at multiple points
Cl. 3.3 — Dimensions per design
OK
NC
NA
HOLD
A4Construction joints and grouting
Acceptance: Joints clean and wetted; grouting complete with no voids; epoxy or cement grout used per design
Cl. 3.4 — Joints properly constructed
OK
NC
NA
HOLD
B. ABUTMENT SPECIFIC CHECKS
B1Abutment seat level and alignment
Acceptance: Seat level ±10 mm of design; slope per design; surface finish smooth and level
Cl. 4.1 — Seat level critical for bearing
OK
NC
NA
HOLD
B2Back wall and wing wall construction
Acceptance: Walls plumb; thicknesses verified; reinforcement cover adequate; no cracks or seepage
Cl. 4.2 — Walls properly constructed
OK
NC
NA
HOLD
B3Abutment drainage and weepholes
Acceptance: Weepholes clear and functional; drain path clean; no water accumulation behind wall
Cl. 4.3 — Drainage essential
OK
NC
NA
HOLD
B4Bearing seat protection
Acceptance: Bearing seat covered until bearing installation; no debris or water on seat
Cl. 4.4 — Seat protected from weather
OK
NC
NA
HOLD
C. PIER AND COLUMN CONSTRUCTION
C1Pier/column verticality and alignment
Acceptance: Plumbness ≤ 1:500 over height; center alignment ±15 mm; checked at multiple levels
Cl. 5.1 — Vertical alignment critical
OK
NC
NA
HOLD
C2Pier cross-section dimensions
Acceptance: Width and depth ±20 mm; cross-sectional area consistent; corners chamfered or shaped as required
Cl. 5.2 — Dimensions per design
OK
NC
NA
HOLD
C3Cap block seat preparation
Acceptance: Cap block top ±10 mm of design level; surface smooth; leveling mortar if required
Cl. 5.3 — Bearing surface level
OK
NC
NA
HOLD
C4Expansion joint grooves or pockets
Acceptance: Joint pockets at correct locations; depth and width per design; free of debris
Cl. 5.4 — Provision for movement
OK
NC
NA
HOLD
Showing 12 of 21 checkpoints ·
A. STRUCTURAL CONCRETE AND FINISHING
A1Concrete surface finish quality
Cl. 3.1 — Surface must be smooth and clean (IS 456)
No honey-combing; void percentage ≤ 0.5%; surface smooth; water repellent if required
OKNCNAHOLD
A2Concrete cracks and defects
Cl. 3.2 — Cracks controlled and limited (IS 456)
Shrinkage cracks ≤ 0.2 mm wide; no structural cracks; defects repair acceptable; ≤ 0.5% area
OKNCNAHOLD
A3Concrete dimensions and verticality
Cl. 3.3 — Dimensions per design (IS 456)
Dimensions ±25 mm of design; verticality ≤ 1:500; plumbness verified at multiple points
OKNCNAHOLD
A4Construction joints and grouting
Cl. 3.4 — Joints properly constructed (IS 456)
Joints clean and wetted; grouting complete with no voids; epoxy or cement grout used per design
OKNCNAHOLD
B. ABUTMENT SPECIFIC CHECKS
B1Abutment seat level and alignment
Cl. 4.1 — Seat level critical for bearing (IRC 6)
Seat level ±10 mm of design; slope per design; surface finish smooth and level
OKNCNAHOLD
B2Back wall and wing wall construction
Cl. 4.2 — Walls properly constructed (IS 456)
Walls plumb; thicknesses verified; reinforcement cover adequate; no cracks or seepage
OKNCNAHOLD
B3Abutment drainage and weepholes
Cl. 4.3 — Drainage essential (IRC 6)
Weepholes clear and functional; drain path clean; no water accumulation behind wall
OKNCNAHOLD
B4Bearing seat protection
Cl. 4.4 — Seat protected from weather (IRC 6)
Bearing seat covered until bearing installation; no debris or water on seat
OKNCNAHOLD
C. PIER AND COLUMN CONSTRUCTION
C1Pier/column verticality and alignment
Cl. 5.1 — Vertical alignment critical (IS 456)
Plumbness ≤ 1:500 over height; center alignment ±15 mm; checked at multiple levels
OKNCNAHOLD
C2Pier cross-section dimensions
Cl. 5.2 — Dimensions per design (IS 456)
Width and depth ±20 mm; cross-sectional area consistent; corners chamfered or shaped as required
OKNCNAHOLD
C3Cap block seat preparation
Cl. 5.3 — Bearing surface level (IRC 6)
Cap block top ±10 mm of design level; surface smooth; leveling mortar if required
OKNCNAHOLD
C4Expansion joint grooves or pockets
Cl. 5.4 — Provision for movement (IRC 6)
Joint pockets at correct locations; depth and width per design; free of debris
OKNCNAHOLD
Showing 12 of 21 ·
Inspection Sign-Off
APPROVED
APPROVED WITH CONDITIONS
REJECTED
Remarks
Name / Sign / Date
Inspected By
Name / Sign / Date
Reviewed By
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