Structure Lesson 301: What is it?

[Doug Vahrenberg]

Ok I've got a Humminbird Screen Capture that might test some of you...Let's see what you all think is happening in the image....

[Akio]

Thera are two pilars, a creeck chanel and someting that looks like a house foundation on the right side. On the left side there is a hump-point whit a nice dropoff and a large square rock or house remains?, and lots of shad-balls an larger fish nearby..

[Bartman]

My guess is a road bed with a tunnel (RR track??) under the road. The pilards on the right (light poles??) come out of the water, 1 on each side of the road. Suspended fish schools toward the bottom of the capture shown in the water column. Wherever your at, it's to hot to be on the water LOL!

[11pounder]

Yea I agree, either a road bed or a rail road track bed. The two black squares on each side of screenshot line up and look like a culvert.

[sterling6069]

kinda looks like the ledge i making an underwater piont ,debris is pretty big with maybe some big poles

[sterling6069]

or maybe a creek falling into the channel

[jimmy7]

there is a roadbed that goes from bottom left to top right of screenshot.

2 bridge posts on right go out of the water.

the middle, shorter posts do not leave the water

hard to say much more with out more screen shots or seeing what is above the water

[CRIMSONGAMBLER]

OK, wild guess coming. The object below top of road bed or railroad, truck or rail car, rail car's.

[Wayne P.]

Looks like the end of a boat ramp with marker pilings

[Doug Vahrenberg]

Ok some really good guesses. It helps being here and knowing the lake and the existing structure.

This is the old highway and the Bridge Pilings hold up the new Bridge. What's unique is the Concrete Box Culvert under the road way and you can see where the material has eroded some on the left side or downstream side. There are three small ledges that appear. The two crisp white ones are where the sonar hit it directly returning a strong signal. The Dark on is where the absence of sonar is for going over the drop and creates a defined shadow. Also neat how you can see the concrete pavement, rocks/gravel on the shoulders and then the base. On left side it's built up on the top right the hill has been excavated to flatten the roadway.

[sodaksker]

at what angle was your boat facing to capture the snapshot?

[Doug Vahrenberg]

The boat travelled down the centerline in the image.

The Photo is just an example of BOx Culvert not the one I captured.