Lock 21,
measured underwater.

0 ft15 ft30 ft45 ft60 ft

FIELD NOTEBOOK · UNDERWATER PHOTOGRAMMETRY

Lock 21,
measured underwater.

Every dive, every setting, every zone, up to the 3D model of the submerged lock.

Explore the 3D modelDive log

SURVEYIN PROGRESS

DEPTH

60 ft

18.3 m

DIVES

47

UNDERWATER

3 d 13 h

ZONES ONLINE

12 / 25

LATEST

Z16

ZONE 12 · 13 M FACES · TEX 12 464 PX

What this site is for

Lock 21 has been underwater since 1958, at Dickinson's Landing, one of the Lost Villages of the St. Lawrence. I set out to digitize the whole structure in 3D, zone by zone, with photogrammetry. This site is the field notebook: it shows the lock to people who don't dive, helps divers plan their dives, and documents the method so others can do it elsewhere.

About the project →

Where to start

Three ways in, depending on what brings you here.

01Diving the siteZones, depths, the current in the canal.divers →02The methodGoPro Hero6, Metashape, Blender.photogrammetry →03The problemsDistortion, current, sharpness: what went wrong.lessons →

From the dive log

All 47 dives →

1. No 472024-09-06zone 1444 min

   Cleaning zone 14

2. No 462024-09-06zone 1347 min

   Cleaning zone 13

3. No 452024-09-02zone 1349 min

   Cleaning zone 13

Total: 47 dives · 3 d 13 h 14 min