Southampton to Tide Gauge, Empress Dock, Southampton
Second geodetic levelling, England & Wales.
Geodetic line, levelled between April 1921 and May 1921.
Levelling Route
| FBM | Southampton (O.S.O.). | 74.3510ft | SU 4207 1280 | |
| 2940 | Flush Bracket on E. face of building, W. side of Strand | 19.5110ft | SU 4216 1159 | |
| 2941 | Flush Bracket on N. face of Board of Trade Offices. | 12.3480ft | SU 4251 1100 | |
| 2942 | Flush Bracket on N. face of Engine House, 2 links from N.E. angle. | 12.5930ft | SU 4274 1000 | |
| BM | Top of figures, 17 feet Tide Gauge, Empress Dock | 10.1440ft | SU 4275 1003 |
Side Levels
| BM | Old B.M. on N.E. angle of Engine House | 15.076ft | SU 4274 1000 | |
| BM | Old B.M. on coping stone of wall at entrance to Empress Dock above tide pole, near automatic tide gauge | 11.652ft | SU 4275 1003 |
This route is covered by Landranger sheet 196. (interactive map)