# NORTHWEST PIPELINE LLC — Clackamas County, OR

**Citation:** NPMS FIPS 41005 / OPID 13845  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

48.583362 active Natural Gas pipeline miles in Clackamas County, OR; public NPMS snapshot 2026-07-16.

## Document text

NORTHWEST PIPELINE LLC (PHMSA OPID 13845) reported 48.583362 active Natural Gas pipeline miles in Clackamas County, OR (county FIPS 41005) in the public NPMS summary snapshot dated 2026-07-16. The snapshot includes active assets only and excludes permanently abandoned assets. Exact pipeline locations and restricted NPMS GIS data are not included.

## Provenance

- Official: Yes
- Source: <https://www.npms.phmsa.dot.gov/Documents/NPMS_Active_Pipe_County_Mileage.xlsx>
- Source ID: `npms-public-summaries`
- SHA-256: `9266c5db535ee8b83de445b1492a248b1e7beed089ab30e73ea16c310b53ceb7`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-26T18:45:27.749Z
- Document slug: `npms-mileage-765e164471233aee2c2701af`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "41005",
  "stateFips": "41",
  "state": "OR",
  "county": "Clackamas County",
  "region": "Clackamas County, OR",
  "operator": {
    "id": "13845",
    "name": "NORTHWEST PIPELINE LLC"
  },
  "commodity": "Natural Gas",
  "mileage": 48.58336175,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 9860,
    "rowSha256": "202545d23032285e8e8cad5b1f514ad913b1ecd833b6d5e85870cf7de9803fcd"
  },
  "citedSections": [
    "191.29"
  ],
  "caveat": "Public aggregate snapshot only. It is not a complete representation of exact pipeline locations, may be updated, and is not an agency finding about facility condition.",
  "jurisdiction": "US",
  "operatorName": "NORTHWEST PIPELINE LLC"
}
```