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I have an excel spreadsheet that contains the elevations across the profile of a stream. I was wondering how to model this in 3-d. Basically there are 6 monitoring stations that are within a stream. I know the elevation of each bank, the slope of each bank, and the depth across the stream at each location. The depth was measured every 20cm across the profile of the stream. eg/ 0.35m across/depth 0.4m, 0.55m across/depth 0.95m, etc. I know that because there are only 6 stations, the result will probably be very blocky, but there are ways to fix that. Basically, I am just looking for somewhere to start. Like I said, I am pretty sure I have all of the pertinent information in an excel spreadsheet, just need to know how to get going. Thanks for all your help.

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You will probably need to create a 3D breakline of the water edge from the data you have, then using the points (you may convert there to point features with a Z value) create a TIN surface from the points and the breaklines.

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So you want to create a 3d cross-section of the stream at that one location? Do you have any arc extensions? If not you might try the etsurface from ianko.

Did you see this other question?

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