CASTLE

ATWATER, CA, US

Towered Public Use
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VFR Card IFR Card Combined Card
Data Source: Cycle Dec 25, 2025 • Version 1.0
FAA LID

MER

ICAO

KMER

Coordinates
37.380484, -120.568186
Elevation

190.4 ft

VFR
Pattern Directions
13: LEFT
31: RIGHT
Key Frequencies
CTAF 118.175 MHz
UNICOM 122.95 MHz
ATIS 124.475 MHz
GROUND 133.575 MHz
IFR
Approach Procedures
31: ILS
LOC: 109.5 MHz | GS: 3.0° | Bearing: 306.0°
[1]
[1] LOC UNUSBL BYD 23 DEG LEFT AND 25 DEG RIGHT OF CRS.; ILS UNMONITORED 2100-0700 DAILY.
IFR Frequencies
Approach 118.175 MHz
Services
Fuel: 100LL,A,A1
Landing Fee: No
Storage: HGR, TIE
Key Numbers
TDZE: 178 ft
TCH: 75 ft Unusual
Basic Information
Facility Type A
Site Number 01886.3
County MERCED
Chart Name SAN FRANCISCO
Distance from City 3 nm NE
Land Area 1,360 acres
Magnetic Variation 15E (2000)
Airport Address
CASTLE
ATWATER, CA
Ownership
Owner
MERCED COUNTY
2222 M STREET
MERCED CA 95340
209-385-7686
Manager
GEORGE CLOVER
2222 M STREET
MERCED CA 95340
209-617-5399
Ownership Type PU
Status & Certification
Activation Date 1942/07
NPIAS Code N
Airspace Analysis NOT ANALYZED
Inspection Method S (Scheduled Inspection)
Inspection Agency S (State)
Last Inspection Date 2025-01-27
Runway Length Width Surface Lighting Traffic Pattern Pattern Alt
13/31 11,802 ft 150 ft ASPH-CONC HIGH 13: Left, 31: Right Not Published
VHF
APPROACH (VHF), CTAF 118.175 MHz [1]
UNICOM 122.95 MHz
ATIS 124.475 MHz
GROUND 133.575 MHz
[1] WHEN ATCT CLSD ACTVT ALSF1 RWYS 13 & 31; HIRL RWY 13/31 - CTAF; 3 CLICKS ON, 5 CLICKS INCR INTST, 7 CLICKS OFF. PAPI RWYS 13 & 31 OPR CONSLY.
UHF [1]
APPROACH (UHF) 235.775 MHz
[1] Military/interoperability frequencies
FAA Services
ARTCC ZOA - OAKLAND
FSS RIU - RANCHO MURIETA
FSS Toll-Free 1-800-WX-BRIEF
NOTAM-D Available
Beacon Schedule SS-SR
Beacon Color WG
Lighting Schedule WHEN ATCT CLSD ACTVT ALSF1 RWYS 13 & 31; HIRL RWY 13/31 - CTAF; 3 CLICKS ON, 5 CLICKS INCR INTST, 7 CLICKS OFF. PAPI RWYS 13 & 31 OPR CONSLY.
Wind Indicator Y-L
Facilities
Fuel Types 100LL,A,A1
Airframe Repair MINOR
Powerplant Repair MINOR
Transient Storage HGR, TIE
sw_112_27NOV2025.pdf
sw_112_27NOV2025.pdf
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