Twin Bridges
Twin Bridges, Montana

FAA NFDC Information Effective 56-day cycle 11/09/2017 - 1/4/2018

Ops Comms Services Owner Runways IFR Procs Current NOTAMs Remarks


FAA Identifier:7S1 (Seven-Sierra-One)
Lat/Lng:45.5354166667, -112.302277778
45-32-07.5000N, 112-18-08.2000W
Estimated by 3RD PARTY SURVEY on 05/18/2015
Elevation:4788 feetSurveyedby 3RD PARTY SURVEYon 05/18/2015
Magnetic Variation:17E,(1985),[12E (2017)]
From City:2nmSE of Twin Bridges


Use:Open to the public
Ownership:Publicly owned
Attended:All year Mon-Fri 0800-1700 (local)
Control Tower:no
ARTCC:Salt Lake City Center(ZLC)
FSS:Great Falls FSS(GTF)
NOTAMs and Weather:GTFNOTAM-D service at airport
Wind Indicator:Lighted
Segmented Circle:yes
Lights:Activate MIRL Runway 17/35 and PAPI Runways 17 & 35 - CTAF.
Beacon:Sunset-Sunrise (local time)
Clear-Green (Lighted Land Airport)
Landing Fee:no




Fuel:Grade 100LL Gasoline (low lead blue)
Jet A - Kerosene, freeze point -40C
Airframe Repair:Major
Powerplant Repair:Major
Bottled Oxygen:High/Low pressure
Bulk Oxygen:None
Transient Storage:Hanger,Tie-Down
Other Services:Avionics

Based Aircraft

Single Engine GA:10
Jet GA:1
Ultralights on & in Vicinity of Airport.

Annual Operations

For year ending:05/13/2015
Local GA (< 20 miles):1100
Non-local GA:1500
Military Operations:50


Owner:Madison Co & Town of Twin Bridges
Box 278
Virginia City, Mt 59775-0278
Manager:Mike Floyd
Po Box 52
Virginia City, Mt 59755
or (406) 684-5335.



Runway 07/25

Length:2866 feet
by Faa on 10/28/2015
Width:100 feet
Surface:Grass / Sod, Gravel, Fair Condition
End 07 End 25
True Alignment:083,(071 Magnetic)264,(252 Magnetic)
Gradient:2.0 Up
2.1 Down
Elevation at End:4704.9' MSL4763.4' MSL
Elevation at Touchdown Zone:4768.0' MSL4778.0' MSL
Objects affecting Navigable Airspace (CFR part 77):Utility runway with a visual approachUtility runway with a visual approach
Object Clearance Slope:20:120:1

Runway 17/35

Length:6000 feet
by Ado on 09/17/2013
Width:60 feet
Surface:Asphalt / Bituminous Concrete, Good Condition
Weight Capacity:Single Wheel aircraft: 60,000 lbs
Dual Wheel aircraft: 78,000 lbs
Dual Tandem Wheel aircraft: 100,000 lbs
Runway Lights Edge Intensity:Med Intensity
End 17 End 35
True Alignment:182,(170 Magnetic)002,(350 Magnetic)
Runway Markings:Nonprecision Instrument,Good ConditionNonprecision Instrument,Good Condition
Gradient:0.4 Down0.5 Up
Elevation at End:4788.7' MSL4760.2' MSL
Elevation at Touchdown Zone:4788.7' MSL4773.8' MSL
Threshold Crossing Glide Path Height:28' AGL38' AGL
Visual Glide Path Angle:3.00°3.00°
Visual Glide Slope Indicator:2-light PAPI on left side of runway2-light PAPI on left side of runway
Objects affecting Navigable Airspace (CFR part 77):Utility runway with a visual approachUtility runway with a visual approach
Object Clearance Slope:50:150:1



Additional Remarks

Deer & Antelope on & in Vicinity of Airport.
195 Ft Tall Tower 1.4 NM 'NE' of Runway 17 Threshold.

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