North Pass Lake Depth Map, St. Tammany Parish, Louisiana

Open North Pass in the studio

The studio frames the survey area, turns on Water depth and generates the terrain, ready to adjust and export as SVG layers.

The orange marker is the survey area; dots are other lakes with depth data. Map data: Natural Earth.

Survey facts

Location	St. Tammany Parish, Louisiana
Centre	30.1712° N, 89.6053° W
Survey area	4.8 km east–west × 3.1 km north–south
Depth data	Surveyed grid
Source	NOAA National Bathymetric Source: Gulf Coast lakes. NOAA Office of Coast Survey National Bathymetric Source; survey sources licensed CC0 1.0 or CC BY 4.0. Only measured survey cells are used; modelled fill removed by TopoStack. Not for navigation.

About 88% of the lake is surveyed. NOAA National Bathymetric Source survey cells only; modelled fill is removed and uncovered parts use the basin model. Depths are below the surveys’ chart datum (MLLW on tidal water, low-water datum on the Great Lakes), not a live water level.

Sizing a piece

Framed to the whole survey area, the map keeps its landscape shape. These are the scales at three common sizes. A tighter frame zooms in and a wider one adds shoreline, and the studio recalculates both.

Piece size	Map scale
305 × 194 mm (12 × 7.7 in)	about 1:16,000
406 × 259 mm (16 × 10.2 in)	about 1:12,000
610 × 389 mm (24 × 15.3 in)	about 1:7,800

Your sheet thickness sets the number of layers. If the lake needs more sheets than you want to cut, Fit depth compresses the lake floor and keeps the shoreline. If the piece is bigger than your laser bed, split it into interlocking pieces.

Nearby lakes with depth data

Lake Saint Catherine 11 km
Lake Pontchartrain 46 km
Lake Salvador 76 km
Bayou Francais 80 km
Lake Maurepas 89 km
Bay Denesse 89 km · opens in the studio

More about lake maps

Make a custom lake depth map: the whole build, from framing to glue-up.
How lake depths work: surveyed, charted and modelled depths, and what the studio's warnings mean.
Paint templates for spraying only the water on each layer.
Louisiana: more lakes from the same survey.

Survey dates and water levels vary, and a survey can cover only part of a lake. Exports include an ATTRIBUTION.txt crediting the source; see sources and attribution. Depth data is decorative source material, not for navigation.