Power line · 2026
Waterford Substation Expansion/01732
Killona, LA · near Port Of South Louisiana Exec Rgnl (9.4 mi)
What this outcome means
The FAA studied the proposal and concluded it would not be a hazard to air navigation. A no-hazard determination is not permanent — it carries an expiration date, and if the structure is not built by then the case has to be re-filed.
The proposal, in the filer's words
"Construct a substation expansion at Waterford 500kV Sub. Waterford 500kV Substation is an existing 500/230kV Substation consisting of (4) single phase Autos with corresponding disconnect switches and equipment one (1) 500kV Line Terminal and one (1) 230kV Line terminal.\n\nThe expansion will consist of converting the 500kV side of the autos to a three (3) breaker ring bus with two (2) 500kV Transmission line terminals.\n\nThe 230kV side of the autos will be upgrades to include CCVTs SSVTs and line arresters. \n\nThe existing control building will be renovated for the relay panel updates a new battery building will be constructed and the station service will be completely replaced."
Filing details
- Case number (ASN)
- 2026-ASW-5252-OE
- Structure
- Waterford Substation Expansion/01732
- Type
- Pole / utility
- Category
- Power line
- Height above ground
- 115 ft
- Height above sea level
- 123 ft
- Site elevation
- 8 ft
- Notice of
- New Construction
- Duration
- Permanent
- Marking & lighting
- —
Timeline
- Filed
- April 9, 2026
- Determined
- June 10, 2026
- Determination expires
- December 10, 2027
A determination that lapses before the structure is built has to be re-filed. The FAA does not send a reminder.
Who filed it
- Sponsor
- Entergy Corporation
- Representative
- Canacre
Names are shown as they appear in the FAA's public record. How we handle names
Location
- Coordinates
- 29.985833, -90.478611
- Degrees / minutes / seconds
- 29°59'09.0"N 90°28'43.0"W
- County
- St. Charles
- Open in a map
- Google MapsOpenStreetMap
Other filings within 5 miles
Organisation-sponsored 2026 filings whose coordinates sit near this one.
About this record
This page is a readable copy of a public record published by the FAA's Obstruction Evaluation / Airport Airspace Analysis system. It is not the official record and may lag it. For the authoritative case status, search this ASN at the FAA's OE/AAA portal. If something here is wrong, email support@idea-engine.studio and we will correct it.
Source: FAA Obstruction Evaluation / Airport Airspace Analysis (OE/AAA) public archive (oeaaa.faa.gov), data as of September 12, 2026. Compiled by LOS Analyzer (Idea Engine LLC). This is not an official FAA record or an FAA determination; the FAA's portal is authoritative. LOS Analyzer is not affiliated with or endorsed by the FAA.
Screening a structure of your own?
Check Part 77 and the tower's line of sight before you file
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