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Safety Cue
Task-specific safety guidance for ordinary final-grading hazards.
Project 14
Establish Final Site Drainage
Shape and stabilize final site grades by re-establishing grade stakes, cutting and filling to the approved elevations, building swales with continuous flow lines, coordinating hardscape and downspout drainage, and verifying runoff behavior, producing a stable final grade that provides positive drainage and approved runoff control.
Field Cue System
These cues appear at the point of work. They identify safety, code, documentation, and drainage-performance issues before a reverse slope, a blocked swale, or an unverified discharge condition is accepted as finished grade.
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Critical Safety Cue
A condition that must stop work until corrected and reverified.
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Field Safety Cue
Practical work-area safety around grading equipment, cut-and-fill operations, and completed swales.
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Code Alert
Local requirements vary. Verify minimum slope away from the foundation, easement protection, and required inspection before proceeding.
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Manufacturer Cue
Follow product-specific instructions for erosion-control blanket, tackifier, or seed and sod materials used to stabilize swales and slopes.
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Measurement Cue
Elevation, slope, and distance guidance for positive drainage away from the foundation to the approved discharge point.
Job Overview
This project qualifies you to shape and stabilize final site grades so water drains away from the building and reaches the approved discharge areas. The finished work product is a stable final grade that provides positive drainage and approved runoff control. This project begins only after the foundation drainage installed in Project 13 is complete, protected, and connected to an approved outlet, and after the backfill of Project 12 has settled sufficiently for final shaping; it does not include installing foundation drainage pipe, aggregate, or filter fabric, does not include paving, driveway, or walkway construction, and does not include planting or seeding beyond the topsoil and stabilization required to protect the finished grade.
You will review the approved final-grading and drainage plan; verify foundation, finished-floor, paving, and topsoil-allowance elevations; inspect backfill settlement, utility trenches, low areas, discharge routes, and boundaries; re-establish final grade stakes and drainage-control points; place or remove soil to achieve the required grade; establish positive slope away from the foundation; shape swales with continuous flow lines and stable side slopes; blend transitions without ponding; coordinate hardscape and downspout drainage; protect septic, well, utility, and easement areas; add topsoil only after structural grading requirements are met; stabilize concentrated-flow paths; direct downspout and sump discharge to approved locations; conduct a measured slope review and observe runoff; correct deficiencies; and complete the final drainage inspection.
This is the fourteenth project in the site preparation sequence. It depends directly on the completed foundation drainage of Project 13 and the protected backfill of Project 12, and it uses the benchmark and layout controls established in Projects 1 through 3. The final grade established here must be complete and inspected before the restoration work of Project 17 begins, and it directly controls the runoff behavior evaluated in the site-readiness inspection of Project 19.
Skills You Will Demonstrate
- SP-079 — Review the approved final-grading and drainage plan, and verify foundation reference elevations, finished-floor elevation, paving elevations, and topsoil allowance.
- SP-080 — Inspect backfill settlement, utility trenches, low areas, discharge routes, and boundaries, and re-establish final grade stakes and drainage-control points.
- SP-081 — Place or remove soil to achieve required grade below building components, establish positive slope away from the foundation for the required distance, and shape swales with continuous flow lines and stable side slopes.
- SP-082 — Blend high and low points without creating ponding areas, coordinate driveway, walkway, patio, downspout, and landscape drainage, and protect septic, well, utility, and easement areas.
- SP-083 — Compact or settle fill sufficiently for the intended surface treatment, add topsoil only after structural grading requirements are met, stabilize concentrated-flow paths, and direct downspouts and sump discharge to approved locations.
- SP-084 — Conduct a measured slope review, observe runoff during rainfall or a controlled water test where appropriate, correct reverse slope, ponding, erosion, overtopping, and discharge conflicts, document final elevations, slopes, swales, outlets, and corrections, and complete the final drainage inspection.
Where This Skill Fits
The foundation drainage installed and inspected in Project 13 must already be discharging correctly at its verified outlet before this project ties final grades into that same discharge point; a foundation drainage system that has not been tested and inspected is a stop-work condition for beginning final grading in that area. The protected backfill of Project 12 must have settled sufficiently that final shaping will not be undone by ongoing consolidation.
The final grade established here must remain stable and functional through the restoration work of Project 17, the housekeeping of Project 18, and the complete site-readiness inspection of Project 19; do not allow restoration planting, stockpile removal, or cleanup traffic to disturb a verified swale or reverse a verified slope. The positive drainage confirmed in this project becomes one of the required conditions the Project 19 inspection checks before the site is certified ready for foundation construction handoff.
Scope and Intended Use
This project covers:
- reviewing the approved final-grading and drainage plan
- verifying foundation reference elevations, finished-floor elevation, paving elevations, and topsoil allowance
- inspecting backfill settlement, utility trenches, low areas, discharge routes, and boundaries
- re-establishing final grade stakes and drainage-control points
- placing or removing soil to achieve required grade below building components
- establishing positive slope away from the foundation for the required distance
- shaping swales with continuous flow lines and stable side slopes
- blending high and low points without creating ponding areas
- coordinating driveway, walkway, patio, downspout, and landscape drainage
- protecting septic, well, utility, and easement areas
- compacting or settling fill sufficiently for the intended surface treatment
- adding topsoil only after structural grading requirements are met
- stabilizing concentrated-flow paths using approved methods
- directing downspout and sump discharge to approved locations
- conducting a measured slope review and observing runoff during rainfall or a controlled water test where appropriate
- correcting reverse slope, ponding, erosion, overtopping, and discharge conflicts, documenting final conditions, and completing the final drainage inspection
This project does not authorize the learner to:
- begin final grading before foundation drainage is inspected, connected, and functioning at its verified outlet
- install or modify foundation drainage pipe, aggregate, or filter fabric
- construct paving, driveway, walkway, or patio surfaces
- add topsoil before structural grading and required elevations are met
- create or accept a reverse slope, low spot, or ponding area anywhere within the graded scope
- direct downspout, sump, or swale discharge to an unapproved location, a neighboring property, or a septic or well protection zone
- disturb protected utility, easement, septic, or well areas without required protection measures in place
- conceal an unverified grade or an untested drainage path by proceeding directly to restoration or cleanup
Any condition requiring a revised elevation, an alternate discharge point, or an engineer's determination must be escalated before work proceeds in that area.
Reference Conventions
Use these references, established in Projects 01 through 13, throughout this project. Do not redefine them.
| Term | Definition |
|---|---|
| Final grade | The finished ground elevation and slope remaining after all cutting, filling, and topsoil placement required by the approved final-grading plan |
| Positive drainage | A continuous downward slope away from the foundation for the required distance, without reverse sections or flat spots that allow water to collect |
| Swale | A shaped, shallow drainage channel with a continuous flow line and stable side slopes that conveys surface water to an approved discharge point |
| Ponding area | A location where the finished grade allows water to collect rather than drain, identified by a flat or reverse slope condition |
| Discharge point | The approved location, structure, or easement where site runoff is directed to leave the graded area |
| Topsoil allowance | The depth of finished topsoil accounted for in the structural grading elevations so the final topsoil surface meets the plan's required elevation |
Final Site Drainage Record
Before final grading begins, record the following:
Foundation drainage confirmed inspected and functioning at verified outlet: ______ Approved final-grading and drainage plan reviewed: ______ Benchmark and reference elevations verified: ______
Backfill settlement inspected and acceptable: ____________ Date started: ____________ Builder name: ____________
Prerequisites
- Completed Project 13 foundation drainage, inspected and functioning at its verified outlet
- Completed Project 12 backfill, settled sufficiently to support final shaping
- Approved final-grading and drainage plan identifying finished-floor elevation, paving elevations, topsoil allowance, minimum slope, swale locations, and discharge points reviewed before work begins
- Protected benchmark and layout references from Projects 1 through 3, available for re-establishing grade stakes
- Approved fill, topsoil, and stabilization materials sourced and confirmed suitable against the project specification
Common Field Fundamentals
Final site drainage only performs its function if every graded surface maintains a continuous downward slope toward an approved discharge point, transitions between high and low areas are blended without flat or reverse sections, and concentrated-flow paths are stabilized before they can erode. A single flat spot near the foundation, an unstabilized swale, or an unapproved discharge location can defeat an otherwise correctly graded site, and once topsoil, planting, or paving is placed, correcting these defects becomes far more disruptive.
Readiness checkFoundation drainage inspected and functioning
Settlement inspectionBackfill, trenches, low areas reviewed
Grade re-establishmentStakes and control points restored
Cut and fillSoil moved to required elevation
Slope and swalesPositive slope, continuous flow lines
CoordinationHardscape, downspouts, protected areas
Topsoil and stabilizationPlaced after structural grade is met
VerificationMeasured review, runoff observation, documentation
Working Across the Graded Site
Every area shaped depends on the grade-control point established before it and on the drainage route it feeds into downstream. Recheck slope continuity at every transition, swale, and discharge point throughout Steps 5 through 11 of this project. If a field condition suggests the finished-floor elevation is incorrect, backfill has settled beyond an acceptable range, or a required slope cannot be achieved as specified, stop and obtain direction before continuing; do not force a grade to an incorrect elevation to avoid a delay.
SP-079 – SP-084
Final Site Drainage Qualification
Final Site Drainage Establishment
A. Finished-Deliverable Specification
Deliverable: one continuous final grade matching the approved plan's finished-floor elevation, paving elevations, topsoil allowance, minimum slope away from the foundation, swale locations and flow lines, and approved discharge points; shaped without ponding areas or reverse sections; coordinated with driveway, walkway, patio, downspout, and landscape drainage; protective of septic, well, utility, and easement areas; stabilized at concentrated-flow paths; and documented through a measured slope review, runoff observation, and inspection record before restoration work proceeds.
B. Final Site Drainage Deliverable Schedule
| Item | Quantity | Form | Content Requirement | Purpose |
|---|---|---|---|---|
| Confirmed grading readiness | Full site within scope | Written confirmation | Foundation drainage inspected and functioning at verified outlet; backfill settlement acceptable | Establishing that final grading will not conceal or build on an unverified condition |
| Re-established grade stakes and control points | Full site within scope | Restored reference marks | Matching protected benchmark and layout references | Providing accurate control for cut, fill, and slope verification |
| Shaped structural grade | Full site within scope | Cut and filled soil surface | Required elevation below building components, positive slope away from foundation | Establishing the base elevation and slope that topsoil and stabilization will follow |
| Swales and drainage transitions | All swales within scope | Shaped channels and blended grade transitions | Continuous flow line, stable side slopes, no ponding areas | Conveying surface water to approved discharge points without collection or erosion |
| Topsoil and stabilization | Full site within scope | Placed topsoil and stabilization material | Placed only after structural grading requirements are met, per approved method | Finishing the surface and protecting concentrated-flow paths from erosion |
| Slope review and inspection record | 1 record for the site | Written record with photographs | Measured slopes, runoff observation, corrections, and inspection sign-off documented | Confirming readiness for restoration and subsequent site work |
C. Material Takeoff
- Approved fill material: sufficient volume to achieve required grade below building components and across identified low areas.
- Topsoil: sufficient volume to meet the specified topsoil allowance across the full site within scope.
- Erosion-control blanket or mulch: sufficient quantity to stabilize identified swales, slopes, and concentrated-flow paths, meeting the manufacturer's anchoring and overlap requirement.
- Grade stakes and marking flags: sufficient quantity to mark final grade-control points and drainage routes.
- Waste allowance: the material quantities above are working allowances; record any material used beyond the planned quantity, and the reason, on the drainage record.
D. Acceptance Standards
| Check | Standard |
|---|---|
| Slope away from foundation | Continuous positive slope for the required distance, matching the approved minimum slope, with no reverse sections or flat spots |
| Swale condition | Continuous flow line and stable side slopes from origin to approved discharge point, free of ponding |
| High and low point transitions | Blended without abrupt humps, depressions, or collection areas |
| Coordination with hardscape and downspouts | Driveway, walkway, patio, and downspout drainage routed consistently with the approved plan, without conflicts |
| Protected areas | Septic, well, utility, and easement areas undisturbed or restored per the approved plan |
| Topsoil and stabilization | Placed only after structural grade is verified, stabilization installed per the approved method at concentrated-flow paths |
| Runoff observation | No uncontrolled ponding, erosion, overtopping, or discharge conflicts observed during review or water test |
| Documentation | Measured elevations, slopes, and photographs complete before restoration proceeds |
E. Preparation — Readiness Confirmation and Plan Review
- Review the approved final-grading and drainage plan. Confirm finished-floor elevation, paving elevations, topsoil allowance, minimum slope, swale locations, and discharge points against the approved plan before work begins.
- Verify foundation reference elevations, finished-floor elevation, paving elevations, and topsoil allowance. Confirm each value at its corresponding control point before shaping begins.
F. Site Inspection and Reference Re-Establishment
- Inspect backfill settlement, utility trenches, low areas, discharge routes, and boundaries. Walk the full graded area and identify every condition requiring correction before shaping proceeds.
- Re-establish final grade stakes and drainage-control points. Restore stakes and control points from the protected benchmark and layout references.
G. Structural Grading and Slope Establishment
- Place or remove soil to achieve required grade below building components. Cut or fill to the elevation established by the approved plan, verified against grade-control points.
- Establish positive slope away from the foundation for the required distance. Verify the slope percentage and distance at intervals along the full foundation perimeter within scope.
- Shape swales with continuous flow lines and stable side slopes. Verify each swale's flow line elevation from origin to its approved discharge point.
H. Coordination and Protection
- Blend high and low points without creating ponding areas. Verify each transition against the required continuous slope on both sides.
- Coordinate driveway, walkway, patio, downspout, and landscape drainage. Confirm each connection routes water consistently with the approved plan and does not conflict with an adjacent drainage feature.
- Protect septic, well, utility, and easement areas. Confirm protective measures remain in place throughout grading operations in these areas.
I. Topsoil, Stabilization, and Discharge
- Compact or settle fill sufficiently for the intended surface treatment. Confirm the fill condition matches the requirement for the planned surface before proceeding.
- Add topsoil only after structural grading requirements are met. Verify structural grade elevations before placing topsoil.
- Stabilize concentrated-flow paths using approved methods. Install erosion-control blanket, mulch, or other specified stabilization at every identified concentrated-flow location.
- Direct downspouts and sump discharge to approved locations. Confirm each discharge point matches the approved plan and does not create a conflict with a neighboring property or protected area.
J. Verification, Documentation, and Inspection
- Conduct a measured slope review. Measure and record slope at every grade-control point, swale, and transition within scope.
- Observe runoff during rainfall or a controlled water test where appropriate. Confirm water moves continuously toward the approved discharge points without collecting or overtopping.
- Correct reverse slope, ponding, erosion, overtopping, and discharge conflicts. Resolve every deficiency identified during the review or water test before proceeding.
- Document final elevations, slopes, swales, outlets, and corrections. Photograph and record the completed grade and drainage features.
- Complete the final drainage inspection. Obtain the required sign-off before restoration work of Project 17 begins in the graded area.
Common Site Inspection
Inspect the completed final site drainage using the same checks regardless of site area or number of swales.
- Slope check: confirm continuous positive slope away from the foundation for the required distance, with no reverse sections or flat spots.
- Swale check: confirm continuous flow lines and stable side slopes from origin to approved discharge points.
- Transition check: confirm high and low points are blended without ponding areas.
- Coordination check: confirm hardscape and downspout drainage routes match the approved plan without conflicts.
- Protected-area check: confirm septic, well, utility, and easement areas remain protected and undisturbed beyond the approved scope.
- Documentation check: confirm the slope review, runoff observation, and inspection record is complete and current, with photographs taken before restoration proceeds.
Complete the Final Site Drainage Record Sheet in the Inspection Checklist section below before restoration work begins.
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Failure Points and Troubleshooting
Cleanup
This project ends with a stable, inspected final grade ready for restoration, not a restored or landscaped site.
- Confirm the completed grade and swales are protected from traffic, erosion, and disturbance
- Confirm grade stakes and drainage-control points remain visible and undisturbed where still needed for restoration
- Confirm all discharge points remain accessible and free of blockage
- Remove surplus fill, stabilization material scraps, and debris from the work area and equipment routes
- File the completed final site drainage record, slope review results, and photographs with the Project 01 through 13 records
Field Terms
- Final Grade
- The finished ground elevation and slope remaining after all cutting, filling, and topsoil placement required by the approved final-grading plan.
- Positive Drainage
- A continuous downward slope away from the foundation for the required distance, without reverse sections or flat spots that allow water to collect.
- Swale
- A shaped, shallow drainage channel with a continuous flow line and stable side slopes that conveys surface water to an approved discharge point.
- Ponding Area
- A location where the finished grade allows water to collect rather than drain, identified by a flat or reverse slope condition.
- Discharge Point
- The approved location, structure, or easement where site runoff is directed to leave the graded area.
- Topsoil Allowance
- The depth of finished topsoil accounted for in the structural grading elevations so the final topsoil surface meets the plan's required elevation.
- Stop-Work Condition
- A field condition requiring work to halt until a competent person, engineer, or responsible party provides direction.
Skill Check
- Why must the foundation drainage of Project 13 be inspected and functioning before final grading begins?
- Why must backfill settlement be inspected before final grade stakes are re-established?
- Why must positive slope away from the foundation be verified for the full required distance rather than only at a single point?
- What condition defines a ponding area, and why must it be corrected before topsoil is placed?
- Why must driveway, walkway, patio, and downspout drainage be coordinated with the overall grading plan rather than graded independently?
- Why must topsoil be added only after structural grading requirements are verified and met?
- What must occur upon discovering a discharge point that conflicts with a neighboring property or protected area?
- Why must concentrated-flow paths be stabilized before the site is accepted as finished grade?
- Why is a measured slope review combined with a runoff observation, rather than either check alone, required before completing this project?
- What must be completed before the final grade is released for the restoration work of Project 17?
Competency Rubric
| Competency | Independent Pass Standard | Not Demonstrated | With Assistance | Independently |
|---|---|---|---|---|
| SP-079 | Reviews the approved final-grading and drainage plan, and verifies foundation reference elevations, finished-floor elevation, paving elevations, and topsoil allowance | |||
| SP-080 | Inspects backfill settlement, utility trenches, low areas, discharge routes, and boundaries, and re-establishes final grade stakes and drainage-control points | |||
| SP-081 | Places or removes soil to achieve required grade below building components, establishes positive slope away from the foundation for the required distance, and shapes swales with continuous flow lines and stable side slopes | |||
| SP-082 | Blends high and low points without creating ponding areas, coordinates driveway, walkway, patio, downspout, and landscape drainage, and protects septic, well, utility, and easement areas | |||
| SP-083 | Compacts or settles fill sufficiently for the intended surface treatment, adds topsoil only after structural grading requirements are met, stabilizes concentrated-flow paths, and directs downspouts and sump discharge to approved locations | |||
| SP-084 | Conducts a measured slope review, observes runoff during rainfall or a controlled water test where appropriate, corrects deficiencies, documents final conditions, and completes the final drainage inspection |
Mark one column per competency. Only Demonstrated Independently awards the competency; Demonstrated with Assistance authorizes additional supervised practice but does not complete the requirement.
Inspection Checklist — Final Site Drainage Record Sheet
| Item | Approved / Specified Value | Field Result | Within Requirement (Y/N) | Correction (if any) |
|---|---|---|---|---|
| Slope away from foundation | ||||
| Swale flow lines and side slopes | ||||
| High and low point transitions | ||||
| Hardscape and downspout coordination | ||||
| Protected-area condition | ||||
| Topsoil and stabilization placement | ||||
| Runoff observation result |
Escalations and direction obtained (list): ____________ Unresolved conditions: ____________
Final site drainage declared ready for restoration: ______ (Yes/No) Date: ____________ Builder name: ____________
Performance Check
With grading, slope establishment, swale shaping, coordination, topsoil placement, and stabilization complete, review the completed site against the Acceptance Standards table and confirm slope away from the foundation is continuous and positive for the required distance with no reverse sections or flat spots, swales maintain continuous flow lines and stable side slopes to their approved discharge points, high and low point transitions are blended without ponding areas, hardscape and downspout drainage are coordinated without conflicts, protected septic, well, utility, and easement areas remain undisturbed or restored per the approved plan, topsoil and stabilization were placed only after structural grade requirements were met, and the runoff observation shows no uncontrolled ponding, erosion, overtopping, or discharge conflicts. Complete the Final Site Drainage Record Sheet and correct any failed item before the site is released for the restoration work of Project 17.
Project Closeout
You have completed the fourteenth project in the site preparation sequence: shaping and stabilizing final site grades so water drains away from the building and reaches approved discharge areas. This project required you to review the approved final-grading and drainage plan and verify reference elevations (SP-079), inspect settlement and re-establish grade stakes and drainage-control points (SP-080), shape structural grade, establish positive slope, and build swales with continuous flow lines (SP-081), blend transitions without ponding and coordinate hardscape and protected-area conditions (SP-082), settle fill, place topsoil only after structural requirements were met, and stabilize and direct discharge points (SP-083), and conduct a measured slope review, observe runoff, correct deficiencies, document final conditions, and complete the required inspection (SP-084).
You now have a stable final grade that provides positive drainage and approved runoff control.
Protect the finished grade, swales, and discharge points from disturbance until restoration begins. The restoration work of Project 17 and the complete site-readiness inspection of Project 19 depend on this grade remaining at its verified slope and drainage condition until those operations proceed.