Michigan City

Generation Date: 3/8/2026

Page 2

NOAA CUSTOM CHART

NOTES GEOSPATIAL DATABASE

VERSION 3.0B - 20 FEBRUARY 2025

The records of the NOAA Custom

Chart Notes Geospatial Database are

current as of February 20, 2025.

Subsequent additions and refinements

are to be expected. Please refer to

all

available

navigational

publications for complete information

about the charted area.

CAUTION

AUTOMATED CHART GENERATION

This NOAA Custom Chart has been

automatically

rendered

from

NOAA

Electronic Navigational Chart (NOAA

ENC®) data. Mariners using this NOAA

Custom Chart are advised that this is

a static reproduction of the NOAA

ENC®. This NOAA Custom Chart has not

been individually quality checked or

adjusted

for

optimal

use

for

navigation. The portrayal may be at a

different scale from that of the

original NOAA ENC®. Mariners are

advised to use caution when using

this NOAA Custom Chart for navigation

and are encouraged to use the latest

NOAA ENC® to access the most up-to-

date information. Mariners must also

comply with all applicable regulatory

requirements.

CAUTION

CHART UPDATES

This NOAA Custom Chart contains up-

to-date information only as of the

time of creation, and will become

outdated. Mariners are advised to

visit

https://

distribution.charts.noaa.gov/

navigation-updates/

to

check

for

critical and routine updates, and to

render a new NOAA Custom Chart when

the ENC data used to make the chart

is updated. Notices to Mariners are

not issued for corrections to this

NOAA Custom Chart.

HEIGHTS

Heights of fixed aids to navigation

and vertical clearances of overhead

obstructions will be shown in feet if

the units are set to feet or fathoms.

If units are set to meters, heights

will

be

shown

in

meters.

Land

elevation values are shown in meters

only.

AUTHORITIES

Hydrography and topography by the

National Ocean Service, Coast Survey,

with additional data from the Corps

of Engineers, Geological Survey, U.S.

Coast Guard and National Geospatial-

Intelligence Agency.

WATER LEVELS, CURRENTS, AND TIDES

Real-time

water

levels,

tide

predictions,

and

tidal

current

predictions are available on the

internet

from

NOAA’s

Center

for

Operational

Oceanographic

Products

and Services (CO-OPS) at https://

tidesandcurrents.noaa.gov/

water_level_info.html

and

https://

tidesandcurrents.noaa.gov/

currents_info.html .

COMMENTS REQUESTED

NOAA encourages users to submit

inquiries, discrepancies, or comments

about this chart via NOAA's ASSIST

tool

at

https://

nauticalcharts.noaa.gov/customer-

service/assist/ .

ABBREVIATIONS

For complete list of Symbols and

Abbreviations, see Chart No. 1.

Michigan City

Generation Date: 3/8/2026

Page 3

POLLUTION REPORTS

Report all spills of oil and

hazardous substances to the National

Response Center via 1-800-424-8802

(toll free), or to the nearest U.S.

Coast Guard facility if telephone

communication is impossible (33 CFR

153).

AIDS TO NAVIGATION

Consult U.S. Coast Guard Light List

for

supplemental

information

concerning aids to navigation.

RADAR REFLECTORS

Radar reflectors have been placed

on many floating aids to navigation.

Individual

radar

reflector

identification on these aids has been

omitted from this chart.

WARNING

The prudent mariner will not rely

solely

on

any

single

aid

to

navigation, particularly on floating

aids. See U.S. Coast Guard Light List

and U.S. Coast Pilot for details.

ADDITIONAL INFORMATION

Additional information can be

obtained

at

www.nauticalcharts.noaa.gov

SUPPLEMENTAL INFORMATION

Consult U.S. Coast Pilot 6 for

important supplemental information.

Refer to charted regulation section

numbers.

SOUNDING DATUM

Soundings in Lake Michigan are

referred to Low Water Datum, which is

577.5 feet / 176.0 meters above Mean

Water Level at Rimouski, Quebec, the

International Great Lakes Datum 1985

(IGLD 1985) reference point.

VERTICAL DATUM

Overhead clearances in the Great

Lakes

are

reduced

correspondingly

when water surface is above Low Water

Datum. See U.S. Coast Pilot 6 for

clearances.

NOTE A

Navigation

regulations

are

published in Chapter 2, U.S. Coast

Pilot 6. Additions or revisions to

Chapter

2

are

published

in

the

Notices

to

Mariners.

Information

concerning the regulations may be

obtained

at

the

Office

of

the

Commander, 9th Coast Guard District

in Cleveland, OH or at the Office of

the

District

Engineer,

Corps

of

Engineers in Chicago, IL.

Refer to charted regulation section

numbers.

SAILING COURSES

Sailing courses and limits are

recommended by the Lake Carriers

Association

and

the

Canadian

Shipowners Association.

SAILING DIRECTIONS

Bearings of sailing courses are

true and distances given thereon are

in statute miles between points of

departure.

Michigan City

Generation Date: 3/8/2026

Page 4

CAUTION

LIMITATIONS ON THE

USE OF RADIO SIGNALS

Limitations on the use of radio

signals as aids to marine navigation

can be found in the U.S. Coast Guard

Light Lists and National Geospatial-

Intelligence Agency Publication 117.

Radio direction-finder bearings to

commercial broadcasting stations are

subject to error and should be used

with caution.

CAUTION

BASCULE BRIDGES

For bascule bridges, whose spans do

not open to a full upright or

vertical position, unlimited vertical

clearance is not available for the

entire charted horizontal clearance.

CAUTION

SUBMERGED CABLES AND PIPELINES

Additional uncharted submarine

pipelines and submarine cables may

exist within the area of this chart.

Not

all

submarine

pipelines

and

submarine cables are required to be

buried,

and

those

that

were

originally buried may have become

exposed. Mariners should use extreme

caution when operating vessels in

depths of water comparable to their

draft in areas where pipelines and

cables may exist, and when anchoring,

dragging or trawling.

Covered wells may be marked by

lighted or unlighted buoys.

CAUTION

POTABLE WATER INTAKE

Vessels operating in fresh water

lakes or rivers shall not discharge

sewage, or ballast, or bilge water

within

such

areas

adjacent

to

domestic

water

intakes

as

are

designated by the Commissioner of

Food and Drugs (21 CFR 1250.93).

Consult

U.S.

Coast

Pilot

6

for

important supplemental information.

CAUTION

FISHING STRUCTURES

Mariners are warned that numerous

uncharted

stakes

and

fishing

structures, some submerged, may exist

in the area of this chart. Such

structures are not charted unless

known to be permanent.

CAUTION

Due

to

periodic

high

water

conditions, in the Great Lakes, some

features charted as visible at Low

Water

Datum

may

be

submerged,

particularly in the near shore areas.

Mariners should proceed with caution.

CAUTION

USACE conducts hydrographic surveys

to

monitor

navigation

conditions.

These surveys are not intended to

detect underwater features. Uncharted

features

hazardous

to

surface

navigation are not expected but may

exist in federal channels. For more

information

visit

https://

navigation.usace.army.mil/Survey/

Hydro.

CAUTION

Temporary changes or defects in

aids to navigation are not indicated

on this chart. See Local Notice to

Mariners.

During some winter months or when

endangered by ice, certain aids to

navigation are replaced by other

types or removed. For details, see

U.S. Coast Guard Light List.

Michigan City

Generation Date: 3/8/2026

Page 5

NOAA WEATHER RADIO BROADCASTS

The NOAA Weather Radio station

listed

below

provides

continuous

weather

broadcasts.

The

reception

range is typically 20 to 40 nautical

miles from the antenna site, but can

be as much as 100 nautical miles for

stations at high elevations.

Hebron, IN WNG-689 162.450 MHz

NOAA WEATHER RADIO BROADCASTS

The NOAA Weather Radio station

listed

below

provides

continuous

weather

broadcasts.

The

reception

range is typically 20 to 40 nautical

miles from the antenna site, but can

be as much as 100 nautical miles for

stations at high elevations.

Michigan City, IN KJY-62 162.500 MHz

NOAA WEATHER RADIO BROADCASTS

The NOAA Weather Radio station

listed

below

provides

continuous

weather

broadcasts.

The

reception

range is typically 20 to 40 nautical

miles from the antenna site, but can

be as much as 100 nautical miles for

stations at high elevations.

South Bend, IN WXJ-57 162.400 MHz

NOAA WEATHER RADIO BROADCASTS

The NOAA Weather Radio station

listed

below

provides

continuous

weather

broadcasts.

The

reception

range is typically 20 to 40 nautical

miles from the antenna site, but can

be as much as 100 nautical miles for

stations at high elevations.

Chicago, IL KWO-39 162.550 MHz