AirNav: 11WN - Diedrich Seaplane Base

11WN

Diedrich Seaplane Base
Lodi, Wisconsin, USA

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FAA INFORMATION EFFECTIVE 19 MARCH 2026

Location

FAA Identifier:	11WN
Lat/Long:	43-21-14.9500N 089-34-16.4300W 43-21.249167N 089-34.273833W 43.3541528,-89.5712306 (estimated)
Elevation:	774 ft. / 236 m (estimated)
Variation:	01W (1995)
From city:	3 miles NW of LODI, WI
Time zone:	UTC -5 (UTC -6 during Standard Time)
Zip code:	53555

Seaplane Base Operations

Seaplane Base use:	Private use. Permission required prior to landing
Activation date:	03/1999
Control tower:	no
ARTCC:	CHICAGO CENTER
FSS:	GREEN BAY FLIGHT SERVICE STATION
Attendance:	UNATNDD
Wind indicator:	yes
Segmented circle:	no

Seaplane Base Communications

WX AWOS-3 at DLL (13 nm NW):	118.325 (608-356-1071)
WX AWOS-3 at C29 (14 nm S):	118.675 (608-833-1686)
WX ASOS at MSN (16 nm SE):	PHONE 608-410-1285

Nearby radio navigation aids

VOR radial/distance		VOR name		Freq		Var
DLLr142/14.5		DELLS VORTAC		117.00		03E
MSNr318/16.1		MADISON VORTAC		108.60		03E

NDB name		Hdg/Dist		Freq		Var		ID
ROCK RIVER		287/38.5		371		01W		RYV	.-. -.-- ...-

Seaplane Base Services

Runway Information

Runway 9W/27W

Dimensions:	3000 x 350 ft. / 914 x 107 m
Surface:	water
	RUNWAY 9W	RUNWAY 27W
Traffic pattern:	left	left

Runway 17W/35W

Dimensions:	1800 x 350 ft. / 549 x 107 m
Surface:	water
	RUNWAY 17W	RUNWAY 35W
Traffic pattern:	left	left

Seaplane Base Ownership and Management from official FAA records

Ownership:	Privately-owned
Owner:	LAWRENCE F. DIEDRICH W11305 COUNTY HWY V LODI, WI 53555 Phone 608-592-3519
Manager:	LAWRENCE F. DIEDRICH W11305 COUNTY HWY V. LODI, WI 53555 Phone 608-592-3519

Additional Remarks

-	FOR CD CTC CHICAGO ARTCC AT 630-906-8921.

Instrument Procedures

There are no published instrument procedures at 11WN.

Some nearby airports with instrument procedures:

91C - Sauk/Prairie Airport (9 nm SW)
C47 - Portage Municipal Airport (13 nm N)
KDLL - Baraboo/Wisconsin Dells Regional Airport (13 nm NW)
C29 - Middleton Municipal Airport - Morey Field (14 nm S)
KMSN - Dane County Regional Airport-Truax Field (16 nm SE)

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Area around 11WN (Diedrich Seaplane Base)

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Aerial photo

Sectional chart

Airport distance calculator
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Sunrise and sunset

Times for 15-Apr-2026

	Local (UTC-5)	Zulu (UTC)
Morning civil twilight	05:47	10:47
Sunrise	06:17	11:17
Sunset	19:40	00:40
Evening civil twilight	20:10	01:10

Current date and time

Zulu (UTC)	15-Apr-2026 21:31:13
Local (UTC-5)	15-Apr-2026 16:31:13

METAR

KDLL 13nm NW	152115Z AUTO 21008KT 10SM SCT046 SCT050 BKN090 21/14 A2973 RMK AO2 LTG DSNT NW T02060137
KC29 14nm S	152115Z AUTO 21004KT 10SM BKN028 OVC035 21/13 A2975 RMK AO1 T02130127
KMSN 16nm SE	152107Z 21005KT 10SM SCT028 BKN037 BKN110 BKN250 20/14 A2974 RMK AO2 T02000139
KC35 21nm NW	152115Z AUTO 19006KT 10SM SCT030 SCT070 BKN090 21/13 A2972 RMK AO2 T02090134 PWINO

TAF

KMSN
16nm SE

151739Z 1518/1618 22007KT P6SM BKN050 TEMPO 1520/1522 4SM -TSRA OVC025CB FM152200 21007KT 6SM SHRA BKN029 PROB30 1522/1524 4SM TSRA OVC015CB FM160000 20005KT 6SM SHRA OVC050 PROB30 1600/1604 4SM TSRA OVC025CB FM160400 VRB04KT 5SM SHRA BR BKN023 PROB30 1604/1609 2SM -TSRA BR OVC015CB FM160900 VRB03KT 3SM BR BKN016 PROB30 1609/1613 2SM -SHRA BR OVC008 FM161300 35007KT P6SM BKN016 PROB30 1613/1615 4SM -SHRA OVC008

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