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11WN Diedrich Seaplane Base
Lodi, Wisconsin, USA

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FAA INFORMATION EFFECTIVE 30 OCTOBER 2025

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
DLLr142/14.5DELLS VORTAC117.0003E
MSNr318/16.1MADISON VORTAC108.6003E

 
NDB name  Hdg/Dist  Freq  Var  ID
ROCK RIVER287/38.537101WRYV .-. -.-- ...-

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: leftleft

Runway 17W/35W

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

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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Airport distance calculator
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From to 11WN

Sunrise and sunset
Times for 01-Nov-2025
 Local
(UTC-5)		 Zulu
(UTC)
Morning civil twilight07:0512:05
Sunrise07:3512:35
Sunset17:4922:49
Evening civil twilight18:1923:19

Current date and time
Zulu (UTC)  01-Nov-2025 15:52:31
Local (UTC-5)  01-Nov-2025 10:52:31
 
METAR
KDLL 
13nm NW 		011535Z AUTO 04007KT 10SM BKN023 OVC028 05/03 A3007 RMK AO2 T00510026
KC29 
14nm S 		011535Z AUTO 01003KT 7SM BKN008 OVC015 05/04 A3007 RMK AO1 T00520035
KMSN 
16nm SE 		011540Z 36004KT 10SM -RA SCT011 OVC023 05/04 A3006 RMK AO2 P0000 T00500039
KC35 
21nm NW 		011535Z AUTO 04004KT 10SM SCT016 BKN025 OVC030 06/01 A3008 RMK AO2 T00570011 PWINO
TAF
KMSN 
16nm SE 		011120Z 0112/0212 VRB04KT P6SM OVC060 TEMPO 0112/0115 -DZ FM011500 35005KT P6SM OVC025 PROB30 0115/0118 -SHRA OVC015 FM011800 01005KT P6SM BKN025 FM012200 02005KT P6SM BKN035 FM020300 VRB03KT P6SM SCT060
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