| Survey name | Type | Altitude | Spacing | Flight line distance |
|---|---|---|---|---|
| Hamme | M-Dz | 121.9 m above ground | 0.80 km | 6,477 km |
| Northeast North Carolina | M-D | 152.4 m above ground | 1.60 km | 8,288 km |
| Norfolk | M/R-D | 121.9 m | 4.80 km | 4,887 km |
| Offshore E. Coast Tie Lines | M-D | 300 m (barometer) | -9999.00 km | 185,000 km |
| Southeast Virginia | M-Dz | 152.4 m above ground | 3.20 km | 9,173 km |
| Danville 1994 | M-D | 121.9 m above ground | 0.80 km | 4,828 km |