NOAA S-57 chart cell
Approaches to Ocean City Inlet, Isle of Wight Bay, and Chincoteague Bay
US4MD1BH
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 1,569
- S-57 layers
- 46
- Published
- Jan 14, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 38.40000° N
- South
- 38.10000° N
- West
- 75.30000° W
- East
- 75.00000° W
- Center
- 38.25000° N, 75.15000° W
- Bounds area
- 255 sq nm
- Feature density
- 6.1581 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 34.1
- Smallest layer
- 1
- Largest layer
- 376
- Area sq km
- 874
- Features per sq km
- 1.79541
- COALNE Coastline 376
- LNDRGN Land region 254
- LNDARE Land area 186
- SLCONS Shoreline construction 117
- RIVERS River 105
- DEPCNT Depth contour 89
- DEPARE Depth area 85
- SBDARE Seabed area 63
- BOYLAT Lateral buoy 37
- OBSTRN Obstruction 29
- LIGHTS Light 25
- SEAARE Sea area 23
- DAYMAR 20
- M_QUAL Data quality 20
- LAKARE 18
- BCNLAT Lateral beacon 12
- WRECKS Wreck 12
- SILTNK 10
- BCNSPP Special purpose beacon 9
- BRIDGE 8
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/US4MD1BH.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4MD1BH/1.0/US4MD1BH.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4MD1BH/1.0/US4MD1BH.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4MD1BH/1.0/US4MD1BH.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4MD1BH/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Jan 14, 2026 | metadata.json |