# ALLIANT ENERGY - INTERSTATE POWER AND LIGHT COMPANY — Marshall County, IA

**Citation:** NPMS FIPS 19127 / OPID 8170  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

51.835367 active Natural Gas pipeline miles in Marshall County, IA; public NPMS snapshot 2026-07-16.

## Document text

ALLIANT ENERGY - INTERSTATE POWER AND LIGHT COMPANY (PHMSA OPID 8170) reported 51.835367 active Natural Gas pipeline miles in Marshall County, IA (county FIPS 19127) 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: `8029e8b113e79bef892419984025b23bbbba9375d531e5566e030ed3c7439571`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T16:48:05.556Z
- Document slug: `npms-mileage-59d6f7f3939dde8113cc719f`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "19127",
  "stateFips": "19",
  "state": "IA",
  "county": "Marshall County",
  "region": "Marshall County, IA",
  "operator": {
    "id": "8170",
    "name": "ALLIANT ENERGY - INTERSTATE POWER AND LIGHT COMPANY"
  },
  "commodity": "Natural Gas",
  "mileage": 51.83536741,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 3043,
    "rowSha256": "18aa8e499769526c61bb378f35186e583f00e0d46bc9ce610e0b604e5f7b74ad"
  },
  "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": "ALLIANT ENERGY - INTERSTATE POWER AND LIGHT COMPANY"
}
```