"Mae angen sgiliau arbennig i osod trawstiau'r bont ac mae hyn yn amlwg o'r fideo treigl amser sydd newydd ei ryddhau sy'n dangos sut y cyflawnwyd y gamp hon o beirianneg.
“Great skill is needed in the placing of the bridge beams and this is clear from the newly released time lapse video which shows how this feat of engineering was achieved.