NOAA S-57 chart cell
Connecticut
US4CT1BD
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 282
- S-57 layers
- 28
- Published
- Dec 3, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 41.70000° N
- South
- 41.40000° N
- West
- 72.60000° W
- East
- 72.30000° W
- Center
- 41.55000° N, 72.45000° W
- Bounds area
- 243 sq nm
- Feature density
- 1.1614 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 10.1
- Smallest layer
- 1
- Largest layer
- 71
- Area sq km
- 833
- Features per sq km
- 0.33862
- COALNE Coastline 71
- RIVERS River 41
- LNDRGN Land region 36
- BUAARE 17
- SLCONS Shoreline construction 17
- SLOTOP 16
- CBLOHD 11
- LNDARE Land area 11
- LNDELV 11
- BUISGL 10
- LNDMRK 8
- PYLONS 7
- SEAARE Sea area 5
- BRIDGE 4
- HRBFAC 3
- SILTNK 2
- CANALS 1
- CTNARE Caution area 1
- DEPARE Depth area 1
- GATCON 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/US4CT1BD.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4CT1BD/1.0/US4CT1BD.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4CT1BD/1.0/US4CT1BD.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4CT1BD/1.0/US4CT1BD.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4CT1BD/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Dec 3, 2024 | metadata.json |