Drainage Checklist
Drainage Checklist
Quick Summary
A drainage checklist helps crews verify that stormwater and site drainage systems are installed correctly and functioning as intended. Proper drainage protects structures, reduces erosion, and helps prevent costly water issues after project completion. This checklist is useful for excavation contractors, utility crews, landscapers, sitework contractors, and project managers.
When to Use This Checklist
- Before starting drainage installation work.
- During site grading activities.
- When installing drainage pipe, catch basins, or inlets.
- Before backfilling drainage systems.
- Prior to inspections.
- During punch list completion.
- Before project closeout.
Before You Start
- Review drainage plans, profiles, and grading requirements.
- Verify utility locates have been completed.
- Confirm drainage materials match project specifications.
- Verify site access and equipment availability.
- Review elevations and benchmark information.
- Inspect drainage materials for damage.
- Check weather conditions and site moisture levels.
Safety Checks
- Verify underground utilities have been identified and marked.
- Inspect trenches for safe access and conditions.
- Keep personnel clear of suspended loads during pipe placement.
- Use proper PPE for excavation and sitework activities.
- Maintain clear communication between equipment operators and ground crews.
- Control water accumulation in work areas when necessary.
Tools, Equipment, and Materials
- Drainage pipe and fittings.
- Catch basins, inlets, or drainage structures.
- Aggregate, bedding, or drainage stone.
- Laser level, transit, or grade-checking equipment.
- Excavation and compaction equipment.
- Project plans and grading information.
- Documentation and inspection forms.
Drainage Checklist
- Verify drainage layout matches project plans.
- Confirm trench elevations meet design requirements.
- Install bedding material as specified.
- Verify pipe slope is consistent and correct.
- Inspect pipe joints and connections during installation.
- Install catch basins, inlets, and structures at proper elevations.
- Verify outlet locations are clear and unobstructed.
- Check drainage paths for proper water flow direction.
- Inspect grading around structures and drainage features.
- Verify drainage stone or aggregate placement where required.
- Complete required flow testing or water checks.
- Inspect for low spots that could collect standing water.
- Verify backfill is placed and compacted properly.
- Correct deficiencies before final inspection.
- Complete final drainage system walkthrough.
Documentation Needed
- Approved drainage and grading plans.
- Utility locate records.
- Inspection and testing records.
- Material delivery records.
- Photos of installed drainage components.
- Punch list and correction documentation.
Common Mistakes to Avoid
- Installing pipe with incorrect slope.
- Failing to verify structure elevations before installation.
- Poor compaction around drainage systems.
- Ignoring low spots that collect water.
- Backfilling before completing inspections or testing.
- Overlooking outlet protection and discharge areas.
End-of-Day / Final Review
- Drainage components are installed according to plans.
- Water flow paths have been verified.
- Required testing and inspections are complete.
- Site grading supports proper drainage.
- Photos and project documentation have been saved.
- The drainage system is ready for inspection or project turnover.
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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