Strange Shadows

Hi folks
Im currently making a bridge for my route im constructing and have run into a issue regarding shadows, on the back half of the 2 bridge sections there are shadows that do not appear in blender when i go into rendered view. I have disabled shadows in the blueprint editor before importing it into tsc. Any help would be greatly appreciated

 

Make sure there is no invisible wall, without texture but still blocking the sun.
This effect happens a lot on the old Northeast Corridor and a few other places, mostly with houses.

 

Ok thank you

 

That looks like the Iron Bridge in Shropshire.

 

It is!!. Im planning on making the line from bridgnorth into ironbridge with the possibility of going towards buildwas junction and even towards shrewsbury. The mainthing holding me up is getting the materials to look right they seem to glow at times where as the assets than come with tsc seem not to

 

Looks like either wrong UV mapping or wrong shader selected... gonna ping maxtedrw he might know.

 

Thanks that would be great i have tried the principled bsdf and diffuse shaders then played with the roughness and specular which has helped a bit. I have also turned off shadows in the objects visibility and turned the light bounces down to 0.