NOAA S-57 chart cell
Connecticut
US4CT1BC
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 137
- S-57 layers
- 26
- Published
- Dec 3, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 41.70000° N
- South
- 41.40000° N
- West
- 72.90000° W
- East
- 72.60000° W
- Center
- 41.55000° N, 72.75000° W
- Bounds area
- 243 sq nm
- Feature density
- 0.5642 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 5.3
- Smallest layer
- 1
- Largest layer
- 23
- Area sq km
- 833
- Features per sq km
- 0.16451
- RIVERS River 23
- COALNE Coastline 20
- SLCONS Shoreline construction 18
- BUAARE 14
- LNDRGN Land region 11
- SILTNK 8
- BRIDGE 6
- LNDMRK 6
- BUISGL 5
- LNDARE Land area 4
- HRBFAC 3
- FERYRT 2
- LAKARE 2
- LNDELV 2
- SEAARE Sea area 2
- CTNARE Caution area 1
- DEPARE Depth area 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 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/US4CT1BC.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4CT1BC/1.0/US4CT1BC.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4CT1BC/1.0/US4CT1BC.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4CT1BC/1.0/US4CT1BC.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4CT1BC/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Dec 3, 2024 | metadata.json |