{
  "total": 3,
  "source": "d1",
  "tracking_since": "2026-10-25T12:38:37.716Z",
  "source_rechecks": {
    "rows": 332,
    "series": 250,
    "last_checked_at": "2026-10-25T13:38:37.000Z",
    "latest_result_counts": {
      "confirmed": 240,
      "unreachable": 5,
      "needs_review": 4,
      "changed": 1
    },
    "method": "Each source URL is fetched and the recorded numbers are looked for in the page (PDFs via pdftotext); anything not confirmed is reviewed by a human. Log: /downloads/price_rechecks.jsonl"
  },
  "observations": [
    {
      "id": "po_20261026_183ab05278fa",
      "series_key": "ps_78c79337b48de515",
      "kind": "benchmark",
      "use_case_id": "hydrodemolition",
      "use_case_ids": [
        "hydrodemolition"
      ],
      "provider_id": null,
      "description": "Kentucky Transportation Cabinet bid tabs of awarded projects (letting 2025-01-23), bridge deck hydrodemolition, 783 sq yd",
      "low": 150,
      "high": 150,
      "currency": "USD",
      "unit": "per sq yd",
      "region": "US-KY",
      "source_url": "https://transportation.ky.gov/Construction-Procurement/Publications/2025-01-23/Unit%20Bid%20Tabulations.pdf",
      "as_of": "2025-01-23",
      "observed_at": "2026-10-26T03:32:44.654Z",
      "content_hash": "sha256:183ab05278fa23bd40c29d1bae0eb4dafd7d4bdf5ff6fd2c7c03b4748bff4856",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 150,
        "high": 150,
        "note": "Already in target currency; no conversion."
      }
    },
    {
      "id": "po_20261026_404df20bb5e5",
      "series_key": "ps_d4803355d29da101",
      "kind": "benchmark",
      "use_case_id": "hydrodemolition",
      "use_case_ids": [
        "hydrodemolition"
      ],
      "provider_id": null,
      "description": "TxDOT bid item 483-6006 hydro-demolition (1 1/2 in), average bid as summarised by Bid Cobra (third-party aggregator of TxDOT bid data; engineer's estimates $70-$175)",
      "low": 117.92,
      "high": 117.92,
      "currency": "USD",
      "unit": "per sq yd",
      "region": "US-TX",
      "source_url": "https://bidcobra.com/tx/txdot/bid-codes/483-6006-sy-hydro-demolition-1-1-2-in",
      "as_of": "2026-10-25",
      "observed_at": "2026-10-26T03:32:44.654Z",
      "content_hash": "sha256:404df20bb5e549edb77e04a433993996bd6c61d3bde8de463f515cd7df348ddb",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 118,
        "high": 118,
        "note": "Already in target currency; no conversion."
      }
    },
    {
      "id": "po_20261026_88acde6d85ee",
      "series_key": "ps_b507ff518f375096",
      "kind": "benchmark",
      "use_case_id": "hydrodemolition",
      "use_case_ids": [
        "hydrodemolition"
      ],
      "provider_id": null,
      "description": "Montana DOT weighted average unit price, bridge deck hydrodemolition (robotic high-pressure water concrete removal), 5,602.7 sq yd bid in 2025 lettings",
      "low": 138.59,
      "high": 138.59,
      "currency": "USD",
      "unit": "per sq yd",
      "region": "US-MT",
      "source_url": "https://www.mdt.mt.gov/other/webdata/external/contractplans/contract/Archives/Average_prices/2025.pdf",
      "as_of": "2026-01-02",
      "observed_at": "2026-10-26T03:32:44.654Z",
      "content_hash": "sha256:88acde6d85ee452bba2cef58688976ff9017999fe705b0f8e7dce8090d724810",
      "supersedes": null,
      "origin": "build",
      "change_reason": null,
      "current": true,
      "usd": {
        "currency": "USD",
        "low": 139,
        "high": 139,
        "note": "Already in target currency; no conversion."
      }
    }
  ],
  "series": [
    {
      "series_key": "ps_78c79337b48de515",
      "kind": "benchmark",
      "use_case_id": "hydrodemolition",
      "provider_id": null,
      "description": "Kentucky Transportation Cabinet bid tabs of awarded projects (letting 2025-01-23), bridge deck hydrodemolition, 783 sq yd",
      "currency": "USD",
      "unit": "per sq yd",
      "region": "US-KY",
      "source_url": "https://transportation.ky.gov/Construction-Procurement/Publications/2025-01-23/Unit%20Bid%20Tabulations.pdf",
      "observations": 1,
      "first_observed_at": "2026-10-26T03:32:44.654Z",
      "last_observed_at": "2026-10-26T03:32:44.654Z",
      "current": true,
      "latest": {
        "low": 150,
        "high": 150,
        "as_of": "2025-01-23",
        "id": "po_20261026_183ab05278fa"
      },
      "trend": null,
      "last_rechecked": null
    },
    {
      "series_key": "ps_d4803355d29da101",
      "kind": "benchmark",
      "use_case_id": "hydrodemolition",
      "provider_id": null,
      "description": "TxDOT bid item 483-6006 hydro-demolition (1 1/2 in), average bid as summarised by Bid Cobra (third-party aggregator of TxDOT bid data; engineer's estimates $70-$175)",
      "currency": "USD",
      "unit": "per sq yd",
      "region": "US-TX",
      "source_url": "https://bidcobra.com/tx/txdot/bid-codes/483-6006-sy-hydro-demolition-1-1-2-in",
      "observations": 1,
      "first_observed_at": "2026-10-26T03:32:44.654Z",
      "last_observed_at": "2026-10-26T03:32:44.654Z",
      "current": true,
      "latest": {
        "low": 117.92,
        "high": 117.92,
        "as_of": "2026-10-25",
        "id": "po_20261026_404df20bb5e5"
      },
      "trend": null,
      "last_rechecked": null
    },
    {
      "series_key": "ps_b507ff518f375096",
      "kind": "benchmark",
      "use_case_id": "hydrodemolition",
      "provider_id": null,
      "description": "Montana DOT weighted average unit price, bridge deck hydrodemolition (robotic high-pressure water concrete removal), 5,602.7 sq yd bid in 2025 lettings",
      "currency": "USD",
      "unit": "per sq yd",
      "region": "US-MT",
      "source_url": "https://www.mdt.mt.gov/other/webdata/external/contractplans/contract/Archives/Average_prices/2025.pdf",
      "observations": 1,
      "first_observed_at": "2026-10-26T03:32:44.654Z",
      "last_observed_at": "2026-10-26T03:32:44.654Z",
      "current": true,
      "latest": {
        "low": 138.59,
        "high": 138.59,
        "as_of": "2026-01-02",
        "id": "po_20261026_88acde6d85ee"
      },
      "trend": null,
      "last_rechecked": null
    }
  ],
  "note": "Only one observation per series so far: we started recording every price on 2026-10-25 and re-check every source on a schedule. A trend appears when a re-checked source shows a different price (we never overwrite old observations).",
  "pagination": {
    "total": 3,
    "limit": 200,
    "offset": 0,
    "returned": 3,
    "next_offset": null,
    "next": null,
    "prev": null
  },
  "license": "Whirrwork (https://whirrwork.com), CC BY 4.0"
}