Drainage Checklist
Drainage Checklist
Quick Summary
A drainage checklist helps crews install and verify drainage systems that move water away from structures, paved areas, and jobsite improvements. Proper drainage helps prevent erosion, standing water, property damage, and costly callbacks. This checklist is useful for excavation contractors, sitework crews, landscapers, utility contractors, and project managers.
When to Use This Checklist
- Before installing drainage systems.
- During grading and sitework projects.
- When installing catch basins, drains, or drainage pipe.
- Before backfilling drainage trenches.
- Prior to final inspections.
- During stormwater management improvements.
- Before project closeout.
Before You Start
- Review approved drainage plans and elevations.
- Verify utility locates have been completed.
- Confirm drainage materials are on site.
- Verify site access for equipment and deliveries.
- Review drainage outlet locations.
- Confirm crew assignments and work sequence.
- Review weather conditions and forecast.
Safety Checks
- Verify trench protection is in place where required.
- Maintain safe access around excavations.
- Identify underground utility locations before digging.
- Inspect equipment before use.
- Keep spoil piles away from trench edges.
- Verify crew members are using required PPE.
Tools, Equipment, and Materials
- Drainage pipe and fittings.
- Catch basins, drains, or drainage structures.
- Aggregate or bedding material.
- Compaction equipment.
- Laser level, grade rod, or layout tools.
- Geotextile fabric if specified.
- Project plans and drainage details.
Drainage Checklist
- Verify drainage layout matches approved plans.
- Confirm trench depth and alignment.
- Check pipe slope and flow direction.
- Inspect bedding material before pipe installation.
- Verify pipe joints and connections are secure.
- Install drainage structures at correct elevations.
- Inspect outlet locations for proper discharge.
- Verify water can flow freely through the system.
- Check for low spots that may hold standing water.
- Inspect backfill materials before placement.
- Compact backfill in appropriate lifts.
- Verify final grading directs water away from structures.
- Inspect erosion protection measures at outlets.
- Perform final drainage flow verification.
- Complete final quality inspection.
Documentation Needed
- Approved drainage plans and details.
- Utility locate records.
- Inspection reports.
- Grade and elevation verification notes.
- Photos of installed drainage components.
- Daily work logs and material records.
Common Mistakes to Avoid
- Installing pipe with insufficient slope.
- Failing to verify outlet elevations.
- Poor compaction around drainage structures.
- Allowing debris to enter the drainage system.
- Ignoring final grading around structures.
- Skipping drainage flow testing before closeout.
End-of-Day / Final Review
- Drainage components are installed correctly.
- Pipe alignment and slope have been verified.
- Backfill and compaction are complete.
- Final grading supports proper drainage.
- Photos and inspection records have been saved.
- Work area has been cleaned and secured.
Checklist Completion
Project / Job Name
Jobsite / Location
Completed By
Role / Title
Completed Date
Completed Time
Signature
Reviewed / Approved By, if needed
Notes / Follow-Up Items
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