NOAA S-57 chart cell
Block Island Sound - Stonington Harbor to Wequetequock Cove
US5CT1FY
- Usage band
- Harbor · code 5
- Current edition
- 4.0
- Features
- 1,096
- S-57 layers
- 40
- Published
- Aug 8, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 41.40000° N
- South
- 41.32500° N
- West
- 71.92500° W
- East
- 71.85000° W
- Center
- 41.36250° N, 71.88750° W
- Bounds area
- 15 sq nm
- Feature density
- 72.015 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 27.4
- Smallest layer
- 1
- Largest layer
- 211
- Area sq km
- 52
- Features per sq km
- 20.99621
- SLCONS Shoreline construction 211
- UWTROC Underwater rock 199
- DEPARE Depth area 136
- DEPCNT Depth contour 131
- COALNE Coastline 112
- OBSTRN Obstruction 44
- LNDRGN Land region 38
- LNDARE Land area 33
- PILPNT 27
- RIVERS River 22
- BOYLAT Lateral buoy 15
- DRGARE 12
- SBDARE Seabed area 11
- BRIDGE 10
- BUISGL 10
- M_QUAL Data quality 10
- SOUNDG Sounding 9
- RESARE 8
- PONTON 7
- SEAARE Sea area 7
Nearby Chart Cells
Harbor 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/US5CT1FY.zip
- S-57 cell https://charts.openships.ai/noaa/s57/harbor/US5CT1FY/4.0/US5CT1FY.000
- GeoJSON https://charts.openships.ai/noaa/s57/harbor/US5CT1FY/4.0/US5CT1FY.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/harbor/US5CT1FY/4.0/US5CT1FY.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/harbor/US5CT1FY/4.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 4.0 | Aug 8, 2025 | metadata.json |