| FAA Information Effective: | 2013-12-12 |
| Airport Identifier: | S31 |
| Airport Status: | Operational |
| Longitude/Latitude: | 122-56-15.6530W/48-29-02.0850N -122.937681/48.483912 (Estimated) |
| Elevation: | 209 ft / 63.70 m (Estimated) |
| Land: | 74 acres |
| From nearest city: | 3 nautical miles S of Lopez, WA |
| Location: | San Juan County, WA |
| Magnetic Variation: | 21E (1985) |
| Ownership: | Publicly owned |
| Owner: | Port Of Lopez |
| Address: | Po Box 907 Lopez, WA 98261 |
| Phone number: | 360-468-4116 |
| Manager: | Helen Cosgrove |
| Address: | Po Box 907 Lopez, WA 98261 |
| Phone number: | 360-468-4116 |
| Airport Use: | Open to public |
| Wind indicator: | Yes |
| Segmented Circle: | Yes |
| Control Tower: | No |
| Beacon Color: | Clear-Green (lighted land airport) |
| Landing fee charge: | No |
| Sectional chart: | Seattle |
| Region: | ANM - Northwest Mountain |
| Boundary ARTCC: | ZSE - Seattle |
| Tie-in FSS: | SEA - Seattle |
| FSS on Airport: | No |
| FSS Toll Free: | 1-800-WX-BRIEF |
| NOTAMs Facility: | SEA (NOTAM-d service avaliable) |
| Federal Agreements: | NGY |
| CTAF: | 128.250 |
| Airframe Repair: | NONE |
| Power Plant Repair: | NONE |
| Bottled Oxygen: | NONE |
| Bulk Oxygen: | NONE |
| Dimension: | 2904 x 60 ft / 885.1 x 18.3 m |
| Surface: | ASPH, Good Condition |
| Surface Treatment: | Saw-cut or plastic Grooved |
| Weight Limit: | Single wheel: 12500 lbs. |
| Edge Lights: | Medium TWY MARKED WITH REFLECTORS. |
| Runway 16 | Runway 34 | |
|---|---|---|
| Longitude: | 122-56-15.7260W | 122-56-15.5800W |
| Latitude: | 48-29-16.4170N | 48-28-47.7530N |
| Elevation: | 209.00 ft | 163.00 ft |
| Traffic Pattern: | Right | Left |
| Markings: | Basic, Good Condition | Basic, Good Condition |
| Crossing Height: | 40.00 ft | 32.00 ft |
| VASI: | 2-light PAPI on left side | 2-light PAPI on left side |
| Visual Glide Angle: | 4.00° | 4.00° |
| Runway End Identifier: | Yes | Yes |
| Obstruction: | 62 ft trees, 1200.0 ft from runway, 16:1 slope to clear | 60 ft trees, 900.0 ft from runway, 11:1 slope to clear |
| RY 16/34 SOFT SHOULDERS & THLDS. |
| RY 16 +200 FT TREES 1,320 FT NORTH OF THLD. |
| ESTABD PRIOR TO 1959. |