Prairie State Generating Heliport HeliportPrivate
5IL4 · Marissa, IL · Non-towered
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Weather
METAR observed
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TAF forecast
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Sun & FAA night2026-08-07 · night begins 08:31 PM
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:37 AM | 10:37Z |
| Sunrise | 06:06 AM | 11:06Z |
| Sunset | 08:02 PM | 01:02Z |
| Evening civil twilight Loggable night begins | 08:31 PM | 01:31Z |
Plan a flight from 5IL4
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
Airspace hazards
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Runways
Headings shown are true (magnetic variation unavailable).
| Runway | Length | Your margin |
|---|---|---|
| H1/ | 100 ft |
Prefer one flat page? Full runway details for 5IL4 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 5IL4 kneeboard →
Comms & NavAids
Nearby navigation aids
SKE 112.20 · ENL 115.00 · TOY 116.00
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| SKE · Scott | TACAN | 112.20 · 59X | — | r154° / 18.2 NM |
| ENL · Centralia | VORTAC | 115.00 · 97X | High | r246° / 25.6 NM |
| TOY · Troy | VORTAC | 116.00 · 107X | Low | r153° / 30.1 NM |
Charts & procedures
No published instrument procedures or Chart Supplement for 5IL4 — open it on the VFR sectional →
Airport info
Airport information
- FAA LID
- 5IL4
- Coordinates
- 38.2762, -89.6719
- Elevation
- 449 ft MSL
- Sectional chart
- ST LOUIS
- Airport use
- Private
- Control tower
- No
- ARTCC
- KANSAS CITY (ZKC)
- Flight service (FSS)
- SAINT LOUIS · 1-800-WX-BRIEF
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 2013/12
- Distance from city
- 4 NE
Ownership & management 2 contacts
Remarks FAA · 1 notes
General
- FOR CD CTC ST LOUIS APCH AT 314-890-1018.
Nearby airports
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Also nearby: 3LL1 Herschel Hunter Airport (private) (4 NM) · 3LL6 Bickel Airport (private) (6 NM) · 6LL9 Hurst Aviation Heliport (6 NM) · LL26 Schaller Airport (private) (9 NM) · 83LL Lindauer Airport (private) (9 NM)
About 5IL4
Prairie State Generating Heliport (5IL4) is a heliport in Marissa, IL, at 449 ft MSL. It has 1 runway, the longest 100 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 5IL4, refreshed from the Aviation Weather Center and FAA NASR.
Does 5IL4 have a control tower?
No. Prairie State Generating Heliport is a non-towered (pilot-controlled) heliport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at 5IL4?
Prairie State Generating Heliport has 1 runway; the longest is 100 ft. See the Runways section for headings, surface, and lighting.
Where is 5IL4?
Prairie State Generating Heliport is in Marissa, IL, at an elevation of 449 ft MSL. Coordinates: 38.2762, -89.6719.
Fly out of 5IL4 often?
Save 5IL4 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open 5IL4 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.