NOAA S-57 chart cell
Hillsborough Bay
US4FL1PR
- Usage band
- Approach · code 4
- Current edition
- 8.1
- Features
- 2,209
- S-57 layers
- 49
- Published
- Mar 20, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 27.90000° N
- South
- 27.60000° N
- West
- 82.50000° W
- East
- 82.20000° W
- Center
- 27.75000° N, 82.35000° W
- Bounds area
- 287 sq nm
- Feature density
- 7.6936 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 45.1
- Smallest layer
- 1
- Largest layer
- 287
- Area sq km
- 985
- Features per sq km
- 2.24308
- DEPARE Depth area 287
- DEPCNT Depth contour 285
- COALNE Coastline 272
- SLCONS Shoreline construction 213
- DAYMAR 143
- BCNLAT Lateral beacon 113
- BCNSPP Special purpose beacon 98
- PILPNT 91
- VEGATN 89
- LIGHTS Light 87
- LNDARE Land area 65
- M_QUAL Data quality 55
- SBDARE Seabed area 53
- DRGARE 43
- BOYLAT Lateral buoy 36
- OBSTRN Obstruction 35
- LNDRGN Land region 20
- LAKARE 19
- SEAARE Sea area 18
- RIVERS River 17
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/US4FL1PR.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4FL1PR/8.1/US4FL1PR.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4FL1PR/8.1/US4FL1PR.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4FL1PR/8.1/US4FL1PR.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4FL1PR/8.1/US4FL1PR.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4FL1PR/8.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 8.1 | Mar 20, 2026 | metadata.json |