Byron Airport (C83)

Location & QuickFacts

FAA Information Effective	2026-07-09
Airport Identifier	C83
Airport Status	Operational
Longitude/Latitude	121°37'33.0000" W / 37°49'42.4000" N -121.625833 / 37.828444 (Estimated)
Elevation	78.50 ft / 23.93 m (Surveyed)
Land	1421 acres
From nearest city	2 nautical miles S of Byron, CA
Location	Contra Costa County, CA
Magnetic Variation	15E (1995)

Owner & Manager

Ownership	Publicly owned
Owner	CONTRA COSTA COUNTY
Address	181 JOHN GLENN DR, SUITE 100 CONCORD, CA 94520
Phone number	925-608-8000
Manager	GREG BAER
Address	181 JOHN GLENN DR, SUITE 100 CONCORD, CA 94250
Phone number	925-608-8000

Airport Operations and Facilities

Airport Use	Open to public
Segmented Circle	Yes
Control Tower	NON-ATCT
Lighting Schedule	SEE RMK
Beacon Color	White-Green (lighted land airport)
Sectional chart	SAN FRANCISCO
Region	AWP - Western-Pacific
Responsible ARTCC	ZOA - OAKLAND
Tie-in FSS	OAK - OAKLAND
FSS on Airport	No
FSS Toll Free	1-800-WX-BRIEF
NOTAMs Facility	OAK (NOTAM-d service available)

Airport Communications

CTAF	123.05 MHz
UNICOM	123.05 MHz
AWOS-3	C83 (925-634-0906)

Airport Services

Fuel types	100LL
Transient storage	Tiedown
Other services	GLD,PAJA,TOW

Runway Information

Runway 05/23

Dimensions	3000 x 75 ft (914 x 23 m)
Surface	ASPH (GOOD)
Surface treatment
Edge lights	Medium

	05	23
Alignment	63°	243°
Physical elevation	78.50 ft	48.60 ft
Coordinates	37.822320 / -121.630116	37.826037 / -121.620850
Traffic pattern	Right	Left
Runway marking	Basic , Good Condition	Basic , Good Condition
VGSI		2-light PAPI on left

Runway 12/30

Dimensions	4500 x 100 ft (1372 x 30 m)
Surface	ASPH (GOOD)
Surface treatment
Edge lights	Medium

	12	30
Alignment	135°	315°
Physical elevation	64.10 ft	48.40 ft
Coordinates	37.835693 / -121.631534	37.826915 / -121.620569
Traffic pattern	Left	Right
Runway marking	Non-precision instrument , Good Condition	Non-precision instrument , Good Condition
VGSI		2-light PAPI on left
Runway end lights		Yes

Radio Navigation Aids

ID	Type	Name	Ch	Freq	Var	Dist
SUU	TACAN	TRAVIS	113X	116.60	13E	29.3 nm
NUQ	TACAN	MOFFETT	123X	117.60	17E	31.4 nm
CCR	VOR/DME	CONCORD	117X	117.00	17E	23.8 nm
OAK	VOR/DME	OAKLAND	115X	116.80	17E	29.1 nm
SJC	VOR/DME	SAN JOSE	88X	114.10	16E	31.2 nm
LIN	VOR/DME	LINDEN	95X	114.80	17E	33.0 nm
MOD	VOR/DME	MODESTO	93X	114.60	17E	34.0 nm
SFO	VOR/DME	SAN FRANCISCO	105X	115.80	17E	37.7 nm
OSI	VOR/DME	WOODSIDE	86X	113.90	17E	40.8 nm
SAU	VOR/DME	SAUSALITO	109X	116.20	17E	42.6 nm
SAC	VORTAC	SACRAMENTO	99X	115.20	17E	37.2 nm
SGD	VORTAC	SCAGGS ISLAND	58X	112.10	17E	41.2 nm
SFO	VOT	SAN FRANCISCO		111.00		37.3 nm
SAC	VOT	SACRAMENTO EXECUTIVE		111.40		41.4 nm

Remarks

• ULTRALIGHT & SAILPLANE ACTIVITY ON & INVOF ARPT.
• PRCHT ACT AT NW END OF ARPT.
• RISING TERRAIN WITH NUMEROUS WINDMILLS ON RIDGES WEST OF ARPT.
• HANGAR APRON & TIEDOWN APRON 12500 LBS MAX.
• RY 30 CALM WIND RY.
• 200' TOWER 5600 FEET FROM RUNWAY 05.
• 100' TOWER 5100 FEET FROM RUNWAY 23.
• POWER PLANT 2.7 MILES SE OF AIRPORT PRODUCING THERMAL PLUMES; AVOID OVERLFIGHT BELOW 1,500 FT AGL.
• FOR CD CTC NORCAL APCH AT 916-361-0516.
• FREQ UAS DRONE ACT 7.8 NM DIAM ARND FLD UP TO 8000 FT.