Prairie State Generating Heliport HeliportPrivate
5IL4 · Marissa, IL · 449 ft elevation · Non-towered
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
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-23
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:04 AM | 10:04Z |
| Sunrise | 05:36 AM | 10:36Z |
| Sunset | 08:26 PM | 01:26Z |
| Evening civil twilight Loggable night begins | 08:57 PM | 01:57Z |
Plan a flight from 5IL4
Runway H1/
100 ft · Concrete (Good)- Heading
- n/a
- Traffic pattern
- Left
- Heading
- n/a
Headings shown are true (magnetic variation unavailable).
| Runway | Length | Your margin |
|---|---|---|
| H1/ | 100 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| SKE · Scott | TACAN | 112.20 | r150° / 18.2 NM |
| ENL · Centralia | VORTAC | 115.00 | r246° / 25.6 NM |
| TOY · Troy | VORTAC | 116.00 | r153° / 30.1 NM |
VFR sectional
No published instrument procedures or Chart Supplement for 5IL4. VFR sectional link above.
Ownership & management
Remarks FAA
General
- FOR CD CTC ST LOUIS APCH AT 314-890-1018.
Nearby airports
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.
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 on the Comms & NavAids tab.
What is the longest runway at 5IL4?
Prairie State Generating Heliport has 1 runway; the longest is 100 ft. See the Runways tab 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.