NOAA S-57 chart cell
Chesapeake Bay - Chester River
US4MD1EE
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 3,402
- S-57 layers
- 43
- Published
- Feb 3, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 39.30000° N
- South
- 39.00000° N
- West
- 76.20000° W
- East
- 75.90000° W
- Center
- 39.15000° N, 76.05000° W
- Bounds area
- 252 sq nm
- Feature density
- 13.5215 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 79.1
- Smallest layer
- 1
- Largest layer
- 1,098
- Area sq km
- 863
- Features per sq km
- 3.94223
- COALNE Coastline 1,098
- SLCONS Shoreline construction 525
- LNDRGN Land region 524
- DEPARE Depth area 311
- DEPCNT Depth contour 310
- SBDARE Seabed area 94
- OBSTRN Obstruction 77
- SEAARE Sea area 65
- RIVERS River 58
- LAKARE 35
- BOYLAT Lateral buoy 27
- WEDKLP 26
- BUISGL 22
- DAYMAR 22
- BCNLAT Lateral beacon 20
- PILPNT 17
- BUAARE 14
- CTNARE Caution area 14
- OFSPLF 13
- SILTNK 13
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/US4MD1EE.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4MD1EE/1.0/US4MD1EE.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MD1EE/1.0/US4MD1EE.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MD1EE/1.0/US4MD1EE.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MD1EE/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Feb 3, 2026 | metadata.json |