8.4 ROW Cleanup & Restoration

Key Takeaways

  • ROW cleanup and restoration returns the right-of-way to original contour, replaces segregated topsoil, and re-establishes vegetation per the line list and landowner requirements.
  • Erosion controls per the SWPPP (Stormwater Pollution Prevention Plan) and FERC wetland/waterbody procedures (where applicable) must be in place before and after backfill and maintained until vegetation is established.
  • Temporary workspace is restored to pre-construction condition, excess spoil and construction debris are removed from the right-of-way, and fencing, gates, drainage tile, and surface appurtenances are repaired or replaced to landowner and permit requirements.
  • Restoration equipment is its own Body of Knowledge sub-topic: LGP (low-ground-pressure) machines work saturated ground without re-rutting it, decompaction equipment (deep ripper or subsoiler) fractures the construction-traffic compaction layer before topsoil is replaced, and seeding equipment must be calibrated to the specified rate.
  • Mile markers and line markers are placed at the stations shown on the restoration alignment sheets, at crossings, and per the operator's marker plan; a missing or misplaced marker is a public-awareness gap and a punch item.
Last updated: August 2026

ROW Cleanup & Restoration

Quick Answer: ROW cleanup and restoration returns the construction right-of-way to its pre-construction condition so the landowner can use the land again and the operator can maintain the line. The inspector verifies regrading, topsoil replacement, reseeding, fencing, drainage, erosion controls, and debris removal against the permits, the line list, and the landowner requirements — and against FERC wetland and waterbody procedures where the project is FERC-jurisdictional.

Restoration is the last visible impression a pipeline project leaves on the land, and it is the last activity the API 1169 inspector verifies before the spread is demobilized. Done well, restoration lets the landowner resume farming, grazing, or recreation and gives the operator a stable, vegetated right-of-way that resists erosion and exposes the line for maintenance. Done poorly, restoration generates landowner complaints, permit violations, and rework that costs the operator far more than doing it right the first time.

The Restoration Driver: Permits and Line List

Every restoration requirement traces back to one of three sources:

  1. Permits — Federal (FERC, USACE, BLM), state (environmental, water, cultural resources), and local (county road, drainage district) permits each carry restoration conditions.
  2. Line list — The operator's line list (landowner agreement list) records the specific commitments made to each landowner: fence type, gate location, drainage tile repair, crop compensation, topsoil handling, and special features.
  3. Landowner requirements — Beyond the line list, individual landowner requests that the operator has agreed to (e.g., a specific grass seed mix, a tree replacement, a no-go area).

The inspector's restoration verification is always against these three sources. If a permit requires 70% vegetative cover before the SWPPP can be closed, the inspector verifies cover. If a landowner's line-list entry requires a 16-foot gate at a specific location, the inspector verifies the gate is installed where called for.

The Restoration Checklist

The following table is the core restoration checklist the API 1169 inspector works through on each parcel.

Restoration ItemWhat the Inspector Verifies
Regrade to original contourFinished grade matches pre-construction contour; no ditches, mounds, or rutting; slope breaks restored
Topsoil replacementSegregated topsoil is spread back over the subsoil in the order it was stripped (subsoil first, topsoil last)
Reseeding / revegetationSeed mix per spec and landowner; applied at the specified rate; mulched or crimped; season-appropriate
Fencing and gatesFences repaired to original type; gates installed at line-list locations; fence lines clear of debris
Drainage restorationSurface drainage restored; drainage tile repaired and tested; culverts clear and functional
Erosion controls (SWPPP)Silt fence, straw wattles, rock check dams, water bars installed per SWPPP and maintained until cover is established
FERC wetland/waterbody proceduresWhere applicable: wetlands restored to pre-construction hydrology, waterbody banks stabilized, temporary bridges removed
Excess spoil removalNo excess spoil, rocks, or stumps left on the right-of-way or on temporary workspace
Construction debris removalNo trash, welding rod, wire, skids, or equipment parts left on the ROW
Temporary workspace restorationExtra workspaces and staging areas restored to pre-construction condition
Surface appurtenancesMainline valves, test stations, vents, marker posts installed at grade and accessible
Access roadsPermanent access roads left per spec; temporary access roads restored or closed per landowner

Topsoil Segregation and Replacement

Topsoil handling is one of the most important and most frequently disputed restoration items, especially on agricultural land. The standard practice is topsoil segregation:

  1. Before ditching, the topsoil (typically the top 6 to 12 inches, depending on the region and the line list) is stripped and stockpiled separately from the subsoil.
  2. The subsoil is excavated and stockpiled separately.
  3. After backfill, the subsoil is placed and graded first.
  4. The topsoil is then spread back over the subsoil, restoring the productive soil horizon to the surface.

The inspector verifies that topsoil was actually segregated during ditching (not mixed with subsoil), that the stockpile was protected from erosion and contamination during construction, and that the topsoil is replaced in the correct order — subsoil first, topsoil last. Mixing subsoil and topsoil is a common defect that reduces farm productivity and generates landowner claims.

Reseeding and Revegetation

Reseeding re-establishes vegetative cover, which is the primary long-term erosion control on most of the right-of-way. The inspector verifies:

  • Seed mix — The mix is per the project spec and, where applicable, the landowner's request (e.g., native grasses, pollinator mix, pasture grass).
  • Application rate — Seed is applied at the specified pounds per acre.
  • Mulch — Straw mulch is crimped in, or erosion control blanket is installed on slopes.
  • Season — Seeding is done in the correct growing season; dormant seeding or a cover crop is used when construction finishes out of season.
  • Watering — Where required, temporary watering is applied until germination is established.
  • Cover verification — On FERC-jurisdictional projects, a specified percent cover (often 70% or 80%) is required before the SWPPP can be closed and the surety released.

Restoration Equipment: LGP, Decompaction, and Seeding

The Body of Knowledge names equipment as its own restoration sub-topic, and three machines carry the work:

EquipmentWhat It DoesInspector Verification
LGP (low-ground-pressure) equipmentWide-track or marsh-track dozers and excavators that spread machine weight over a much larger footprint, so they can work saturated ground, wetlands, and replaced topsoil without rutting or compacting itConfirm the spec or permit requires LGP for that parcel and that only LGP machines are on the restored surface; a standard-track dozer driven across replaced topsoil undoes the decompaction that was just paid for
Decompaction equipment (deep ripper, subsoiler, paraplow, chisel plow)Mechanically fractures the compacted layer created by construction traffic, restoring pore space so roots and water can move through the profile againConfirm decompaction is done before topsoil is replaced (and again on the topsoil where the spec calls for it), to the depth the agricultural addendum specifies, and across the full worked width — not just the wheel tracks. Verify with a penetrometer or probe where the spec requires a reading
Seeding equipment (drill seeder, broadcast/hydro-seeder, mulch crimper)Places seed at the specified rate and depth and anchors mulch so it survives the first rainConfirm the method matches the spec (a drill seeder places seed at depth; broadcasting on a hard surface leaves it for the birds), that the calibrated rate matches the pounds-per-acre requirement, and that mulch is crimped rather than laid loose on slopes

Sequence matters. Decompaction comes after final subsoil grading and before topsoil replacement; running LGP equipment and seeding across topsoil that was never decompacted produces a strip of stunted crop over the ditch line for years — the single most common source of post-construction landowner claims.

Mile Markers and Line Markers

The restoration alignment sheets show mile-marker placement along with the other surface appurtenances, and the inspector verifies each one against the sheet. Line markers and aerial patrol markers must be set at the stations shown, at road, rail, and waterbody crossings, and wherever else the operator's marker plan and the applicable regulation require, with the correct operator name, product, and emergency telephone number on the face. A marker missing at a crossing is both a one-call/public-awareness gap and a punch item (10.2); a marker installed at the wrong station is worse, because it tells an excavator the pipe is somewhere it is not.

Erosion Controls and SWPPP

The Stormwater Pollution Prevention Plan (SWPPP) is the document that governs erosion control during and after construction. Typical SWPPP measures the inspector verifies:

  • Silt fence installed along the down-gradient edge of the right-of-way and at the toe of stockpiles.
  • Straw wattles or bales in drainage swales.
  • Rock check dams in ditches and channels.
  • Water bars (rolled diversions) on slopes to break sheet flow.
  • Inlet protection on storm drains near the work area.
  • Stabilized construction entrances to keep mud off public roads.

The inspector verifies these are installed per the SWPPP before backfill exposes soil, and that they are maintained — not just installed once — until vegetative cover is established. A silt fence that has fallen over or a wattles that has washed out is a permit violation, even if it was installed correctly originally.

FERC Wetland and Waterbody Procedures

On FERC-jurisdictional gas pipeline projects, restoration of wetlands and waterbodies follows the FERC Wetland and Waterbody Construction and Mitigation Procedures, which are typically incorporated by reference into the project's FERC certificate. Key inspector verification points:

  • Wetland topsoil is segregated and replaced separately.
  • Wetland hydrology is restored to pre-construction conditions.
  • Waterbody banks are stabilized and re-vegetated within the specified timeframe.
  • Temporary bridges and equipment pads are removed from waterbodies.
  • Trench plugs are installed at specified intervals to prevent water channeling along the ditch.
  • Herbaceous cover and woody vegetation are re-established per the procedure.

The inspector's documentation that these procedures were followed is part of the operator's compliance file for FERC.

Fencing, Gates, and Drainage

Fencing and drainage repair are line-list items that directly affect landowner satisfaction:

  • Fences — Repaired to the original type (barbed wire, woven wire, smooth wire, etc.) and height; braces and stays replaced in kind.
  • Gates — Installed at line-list locations, of the specified width, with operable latches; the landowner can access all portions of the property.
  • Drainage tile — Agricultural drainage tile cut during ditching is repaired with the correct material and connectors; the tile is tested (often by water flow or camera) before backfill closes the repair.
  • Culverts — Cleaned, extended, or replaced as required; drainage patterns restored.

Excess Spoil and Debris Removal

The inspector verifies that no construction waste is left on the right-of-way:

  • Excess spoil — Any material beyond what is needed to fill the ditch to grade is hauled off, not spread on the ROW.
  • Rocks — Rocks excavated from the ditch that are larger than the backfill spec are hauled off, not left on the surface.
  • Stumps and brush — Cleared woody material is chipped, burned (where permitted), or hauled off.
  • Construction debris — Welding rod stubs, wire, skids, empty coating cans, lunch trash, equipment parts — all picked up and removed.
  • Equipment pads and mats — Timber mats used in wetlands are removed; no buried wood is left in the ditch (it rots and creates settlement).

Temporary Workspace Restoration

In addition to the permanent right-of-way, most projects use temporary extra workspaces (TEWAs) at roads, rail, wetlands, and tie-in points. These are restored to pre-construction condition — regraded, topsoiled, reseeded — and returned to the landowner's use. The inspector verifies TEWA restoration separately from the mainline ROW because the line-list terms for TEWAs are often different (e.g., a TEWA in a farm field may require full topsoil replacement and re-tiling, while a TEWA in a pasture may require only reseeding).

Final Inspector Sign-Off

The inspector's final restoration sign-off on each parcel typically confirms:

  1. Regrading to original contour is complete.
  2. Topsoil is replaced and segregated correctly.
  3. Reseeding is complete and cover is establishing (or a remediation plan is in place).
  4. Fencing, gates, and drainage are restored per line list.
  5. Erosion controls are in place and maintained.
  6. All debris and excess spoil are removed.
  7. Temporary workspaces are restored.
  8. Any remaining items (punch list) are documented with a completion date.

Key Takeaways for the Exam

  • Restoration is verified against three sources: permits, line list, and landowner requirements.
  • Topsoil is segregated during ditching and replaced in order — subsoil first, topsoil last — to preserve productivity.
  • SWPPP erosion controls must be installed before exposure and maintained until vegetative cover is established.
  • On FERC-jurisdictional projects, wetland and waterbody restoration follows the FERC Procedures.
  • Temporary workspaces are restored to pre-construction condition and returned to the landowner; excess spoil and all construction debris are removed.
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Topsoil Segregation and Restoration Sequence
Restoration Checklist — Parcel Sign-Off Items (illustrative)
Test Your Knowledge

On agricultural land, what is the correct order for replacing topsoil that was segregated during ditching?

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Test Your Knowledge

On a FERC-jurisdictional gas pipeline project, which document governs the restoration of wetlands and waterbodies and is typically incorporated by reference into the FERC certificate?

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Test Your Knowledge

Which three sources does the API 1169 inspector verify restoration against on each parcel?

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Test Your Knowledge

SWPPP erosion controls (silt fence, straw wattles, water bars) are installed before soil is exposed and must be:

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Test Your Knowledge

On an agricultural parcel, when must decompaction (deep ripping or subsoiling) be performed relative to topsoil replacement?

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