Another experiment with Autocad 123d Catch photometric modeling software. I used ten photographs taken from across a creek (I couldn't actually get anywhere near the culvert). The software spit out this beautiful high-poly model.
This model still needs work. It's too heavy to be useful (about 300 thousand triangles), and there are a number of artifacts that must be addressed, but it's a great starting point for a high quality photorealistic asset.
