NOAA S-57 chart cell
Entrance to Tampa Bay - Gulf of America
US4FL1OP
- Usage band
- Approach · code 4
- Current edition
- 6.0
- Features
- 421
- S-57 layers
- 28
- Published
- Feb 6, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 27.60000° N
- South
- 27.30000° N
- West
- 83.10000° W
- East
- 82.80000° W
- Center
- 27.45000° N, 82.95000° W
- Bounds area
- 288 sq nm
- Feature density
- 1.4623 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 15
- Smallest layer
- 1
- Largest layer
- 115
- Area sq km
- 988
- Features per sq km
- 0.42633
- DEPCNT Depth contour 115
- DEPARE Depth area 106
- SBDARE Seabed area 65
- OBSTRN Obstruction 43
- SOUNDG Sounding 17
- M_QUAL Data quality 12
- DMPGRD 10
- LIGHTS Light 10
- BOYLAT Lateral buoy 8
- WRECKS Wreck 7
- DRGARE 6
- ADMARE 2
- FAIRWY Fairway 2
- M_NPUB 2
- MAGVAR Magnetic variation 2
- SEAARE Sea area 2
- BOYSAW 1
- BOYSPP Special purpose buoy 1
- CBLSUB 1
- CONZNE 1
Nearby Chart Cells
Approach usage band
Current Edition Files
The NOAA ZIP archive is the upstream source for this chart cell; the other files are Open Ships generated derivatives for web and GIS use.
- Original NOAA ZIP archive https://www.charts.noaa.gov/ENCs/US4FL1OP.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4FL1OP/6.0/US4FL1OP.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4FL1OP/6.0/US4FL1OP.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4FL1OP/6.0/US4FL1OP.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4FL1OP/6.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 6.0 | Feb 6, 2026 | metadata.json |