Star Trails over the Aqueduct

Star trails over the bridge that allows the River Dun Navigation to cross over the River Don. When imaging star trails it can get a little boring because once you have set up the camera and got a composition and exposure that you are happy with you just leave it to do it's thing for ~1hr 20mins in this instance. So I tried some light painting to keep me occupied and here is the result.

154 x 30s Sigma Art 14mm f1.8 @ ISO 500 and 7 x 30s @ ISO 800 stack for some bits of the foreground that were over(from blend)/underexposed. Nikon D750.