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Database Information Shipwreck Unknown aka Mea Tug
Basic Information
Name(s) Unknown aka Mea Tug
Registry US
Official Number
Vessel Type Tug
Year Built
Year Sank
Hull Material Wood
Engines Double Expansion Steam Auxiliary
Dimensions
Length 76 ft (Measured)
Width ft
Depth ft
Vessel History
Complete Historic Information Link – Soon to be published UASC report Luther Loomis/MEA Tug Underwater Archaeological Survey Report.
Wreck Site Information
Lake Michigan
State or Province Illinois
Depth 60 ft
GPS Coordinates 41° 47.397′ N 087° 25.418′ W
Site Description The unknown identity of this tug called Mea Tug named after Bill Mea, the finder, makes interpretation of the machinery on board difficult. The hull is splayed out with two-thirds of the starboard side and three quarters of the bottom of the ship extant on site with another smaller piece of the port side. The tug was apparently powered at one time and has a stoppered shaft hole on the stern post and a rectangular rudder with quadrant laying close by. There is a single iron tow bitt on its side near the bow. A firebox boiler with steam drum lies on its side on the flattened starboard side of the ship. The double expansion steam engine is mounted transverse to the hull with no visible means of transferring power except possibly by the flywheel. One of the pistons has been removed. The flywheel has an unusual clamp system mounted on its outward side on the shaft. There is a small belt driven governor on top of the engine. Near the engine are some steel bar structures called supports in the UASC report but could also be part of the machinery controls. The purpose of the steam engine is unknown. It is thought that the tug was repurposed for some use other than a tow vessel and was eventually scuttled in its current location. (Much of the site interpretation was referenced from a UASC preliminary report by Donald Smith.)
Model Information
Photographer
Photographer(s) Ken Merryman
Year Captured June 2025
Time it took to capture 30 min
Modeler Information
Modeler Ken Merryman
Date Completed 10-2025
Hours of input to complete 5 hrs
Technical Information
Photography
Camera – Canon 5d Mark IV in a Nauticam Housing with an 8” Dome Port
Lens – Canon EF Zoom 8-15mm set at 15 mm
Multi-Camera Rig – No
Camera Propulsion – DPV
Video or Stills – Stills
Number of images Submitted – 1,468
Image resolution (pixels) 6720 x4480
Lighting – Artificial & Natural
Number of lights – 4
Light Output Lumens 4×10,000
Model Information
Software Used Agisoft Metashape Professional Version 2.1.3 Build 18946
Data Format .jpg converted from RAW
Number of Source Images used – 1,468
Are these images original or adjusted; Adjusted
If Scale Bars, calibration length – 3.0 ft
Portion of the site covered: Complete
Publishing Restrictions
Licensing Usage Restrictions CC BY-ND
Attributed to: 3DShipwrecks.org with support from UASC
Resource Data in Database
Model Yes
Source Images Yes
Source CC .jpg
Number of Still Images 1,468
Video Clip None
Processing Report Yes
Camera Calibration .xml Yes