Foundation removal by action, Slate Subdivision MP 52.00 to MP 73.50

Ahead of the resignaling, all 1,144 existing signal and pole line foundations between CP 52 and CP 73 are sorted by what Special Provision SP-14 requires: remove completely, cut down below top of rail, cut down below grade, or abandon in place. 291 CY of the removed concrete has to go to a contained landfill because total chromium exceeds the recycler’s acceptance limit.

Foundation inventory, 1,144 foundationsSlate Subdivision, MP 52.00 to MP 73.50, double main trackRules: Special Provision SP-14Prepared Nov 5, 2026

Summary

Action per foundation

146 removed, 601 cut down and 397 abandoned in place

487 foundations within 12 ft of track centerline are cut down to 3 ft below top of rail, and 114 in hayfields, residential lots and road areas are cut down to 18 in below finished grade. Removed concrete totals 519 CY (SP-14.3 through SP-14.6).

Mismatch with removal plans

51 foundations at the new duct bank must be removed completely

Between MP 64.49 and MP 66.66, 51 foundations lie within 3 ft of the new signal duct bank. Removal plan sheets R-113 to R-115 (Rev B) show them as cut down or abandoned in place. Another 17 are marked for cutting although their top is already below the cut level.

Action: revise sheets R-113 to R-115 before the bid package goes out.

Concrete disposal

291 CY must go to a contained landfill, not the recycler

Samples CS-01 to CS-06 from the 1953 cast-in-place foundations (MP 52.00 to MP 62.38) show 52 to 88 mg/kg total chromium, above the 40 mg/kg acceptance limit of Slate Gap Aggregate Recycling. TCLP chromium stays below the 5.0 mg/L regulatory level for the chromium toxicity characteristic (D007). That is 56% of the removed concrete, about 583 tons.

Change the general note that sends all concrete to recycling, and get a waste profile approved by the receiving landfill.

Foundations along the line

Pick actions and a filter. The bars show foundations per mile; click a bar to open that mile. Click a foundation to see the rule sequence, size, volume and the source rows behind the decision.

Action
Filter
0Foundations in selection
0Concrete removed
0To contained landfill
0Mismatches with removal plans

Foundations per mile

Red dot: the mile has mismatches with the removal plans. Dashed line: boundary between sample Group A (cast-in-place, 1953) and Group B (precast, 1984) at MP 62.38.

Remove completely Cut down below TOR Cut down below grade Abandon in place Rock-anchored base Mismatch with removal plans New foundation New duct bank House site, grade crossing

Offsets from track centerline are exaggerated. The outer bands show land use from the 2026 field inventory.

Foundations in this mile

IDLocationSideTypeActionCY

Selected foundation

Totals by action, entire segment

ActionCountConcrete (CY)Landfill (CY)Recycle (CY)Weight (tons)

Volume = plan area × height removed. Weight at 2.0 tons per CY, reinforcing steel included. Foundations abandoned in place add no volume.

Chromium in concrete samples

SampleFoundationLocationGroupTotal Cr (mg/kg)TCLP Cr (mg/L)Result

Total chromium is compared with the 40 mg/kg limit in Slate Gap Aggregate Recycling’s acceptance criteria, and TCLP chromium with the 5.0 mg/L regulatory level for chromium in 40 CFR 261.24. The TCLP results address only the chromium toxicity characteristic, not a full waste determination. All six Group A samples exceed the recycler’s limit, so the group is handled as one waste stream.

Sources and method

Sources

  • SGS_Slate_Sub_Foundation_Inventory.xlsxSlate Gap Southern Railroad inventory of existing foundations: ID, milepost, main and side, offset, type, size, top elevation (NAVD 88) and land use from the 2026 field inventory1,144 rows
  • Slate_Sub_Resignaling_Special_Provisions.pdfSpecial Provision SP-14, Removal of Existing Foundations: when a foundation is removed, cut down or abandoned56 pages
  • Removal_Plans_R-101_to_R-122_RevB.pdfRemoval plan sheets with an action per foundation and a general note on concrete disposal22 sheets
  • New_Signal_Foundations_and_Duct_Bank.dwgNew signal and case foundations and the new duct bank from MP 64.49 to MP 66.66, Kentucky Single Zone (FIPS 1600), NAD83(2011), US survey feet2 layers
  • Track_Profile_TOR_MP52-73.5.csvTop of rail every 50 ft on each main, NAVD 884,542 rows
  • Concrete_Sampling_Report_Slate_Sub.pdfTen concrete cores with total chromium (mg/kg) and TCLP chromium (mg/L)10 samples, 31 pages
  • Slate_Gap_Recycling_Acceptance_Criteria.pdfRecycler’s acceptance criteria for broken concrete, including the total chromium limit4 pages

Method

  1. Read the inventory row by row: ID, milepost, main and side, offset from track centerline, type, size, top elevation and land use.
  2. Interpolated top of rail on the nearest main at each foundation from the track profile.
  3. Measured the edge-to-edge distance to the nearest new foundation and to the new duct bank in the CAD file.
  4. Applied SP-14 in order: remove completely on a conflict or inside the house site or the KY 487 crossing, abandon in place for rock-anchored bases, cut down below TOR within 12 ft of track centerline, cut down below grade in ground to be restored, and abandon in place everywhere else or where the top is already below the cut level.
  5. Computed volume as plan area × height removed, and weight at 2.0 tons per CY.
  6. Set the destination by sample group: Group A (cast-in-place 1953, MP 52.00 to MP 62.38) to a contained landfill, Group B (precast 1984, MP 62.38 to MP 73.50) to the recycler.
  7. Compared each foundation’s action with the action on its removal plan sheet.

Assumptions and limitations

  • Distances to new foundations use design locations. Field staking can add or remove a few conflicts.
  • The cut level below top of rail is taken from the nearest main.
  • Sample results are taken to represent the whole group. No foundations beyond CS-01 to CS-10 were sampled.
  • Hayfields, residential lots, the gravel access road and the KY 487 right of way count as ground to be restored under SP-14.5.
  • Weight includes reinforcing steel. Poles, crossarms, anchor rods and signal equipment are not part of the totals.
  • Disposal at a contained landfill still needs a waste profile approved by the receiving facility under its Kentucky Division of Waste Management permit. That approval is outside this review.
  • The SP-14 cut-down rules (3 ft below top of rail within 12 ft of track centerline, 18 in below finished grade) are the project’s own provision, not a federal or state rule. A railroad signal engineer should confirm them, and that the inventoried pole line bases are concrete foundations.
  • Coordinates in the CAD file are Kentucky Single Zone, NAD83(2011), in US survey feet. Kentucky law sets the international foot for new coordinate series, so the project surveyor should confirm units if the design moves to SPCS2022.