Otterbach Farm Airport (81LL) — Mendota, IL

Otterbach Farm Airport (81LL)
81LL
Otterbach Farm Airport (81LL)
Mendota, IL
Have a photo of this airport? Share with others.

Otterbach Farm Airport (81LL) is a private-use airport located in Mendota, IL. The airport sits at an elevation of 840 feet above mean sea level. It features 1 runway.

Location & QuickFacts
FAA Information Effective 2026-09-03
Airport Identifier 81LL
Airport Status Operational
Longitude/Latitude 89°10'25.3130" W / 41°34'9.1180" N
-89.173698 / 41.569199 (Estimated)
Elevation 840.00 ft / 256.03 m (Estimated)
From nearest city 2 nautical miles NW of Mendota, IL
Location Bureau County, IL
Owner & Manager
Ownership Privately owned
Owner DEAN L. OTTERBACH
Address 35461 2900 NORTH AVE
MENDOTA, IL 61342
Phone number 815-538-7102
Manager DEAN L. OTTERBACH
Address 35461 2900 NORTH AVE
MENDOTA, IL 61342
Phone number 773-538-7102
Airport Operations and Facilities
Airport Use Private
Segmented Circle No
Control Tower NON-ATCT
Sectional chart CHICAGO
Region AGL - Great Lakes
Responsible ARTCC ZAU - CHICAGO
Tie-in FSS IKK - KANKAKEE
FSS on Airport No
FSS Toll Free 1-800-WX-BRIEF
Runway Information
Runway NW/SE
Dimensions 1600 x 70 ft (488 x 21 m)
Surface TURF
Surface treatment
NW SE
Traffic pattern Left Left
Remarks
  • OWNER DESIRES ARPT NOT BE CHARTED.
  • FOR CD CTC CHICAGO ARTCC AT 630-906-8921.
  • E111:PROVIDED ALL TRAFFIC PATTERN OPERATIONS ARE CONDUCTED NORTH OF THE RWY.