Channel survey drawings furnished to the USCG are to include:

EP 1130-2-520

29 Nov 96

District Commanders

U.S. Coast Guard

(2) Channel survey drawings furnished to the USCG are to include:

(a) Either NAD 83 or State Plane grids.

(b) Plots of the positions of aids to navigation.

(c) Written notations of the coordinates in NAD 83 or State Plane Coordinates of the

fixed aids to navigation found during the survey.

(d) Soundings should be referenced to mean lower low water (MLLW) or other datum as

appropriate.

(3) The standard tabular forms with illustrated data follow:

(a) For channels 400 feet wide and greater (ENG FORM 4020-R).

__________________HARBOR _____(State)

Minimum depth in each-1/4 width

of channel entering from seaward

Mid-channel

Left

Right

Name of Channel Date

Project

outside inside

inside

outside

Survey Feet Miles Feet quarter quarter

quarter

width length depth feet

feet

Tybee Range--

6-58

500

1.64

30

31

28

23

Bloody Point--

6-58

500

2.81

30

29

25

ENG FORM 4020-R(Nov 90)

(b)

For channels 100 to 400 feet wide (ENG FORM 4021-R).

__________________HARBOR _____(State)

Minimum depths in channel

entering from seaward

Left

Mid-

Right

outside

channel

outside

Name of Channel

Date

Project

Survey

Feet Miles Feet

quarter

for half

quarter

width length depth

feet

project

feet

Kings Island Channel 6-58

300

1.14

26

24

23

26

Whitehall Channel

6-58

200

1.81

26

27

26

25

ENG FORM 4021-R(Nov 90)

(c) For channels less than 100 feet in width, report controlling depths only based on at

least 80 percent of project width, 40 percent on either side of centerline. (The submission of

tabular forms is not required for channels having a project depth less than 10 feet except coastal

inlets and harbors of refuge.

2-5