Brunel built dockyards, the Great Western Railway, a series of steamships including the first propeller-driven transatlantic steamship, and numerous important bridges and tunnels.
Brunel ehitas raudteevõrgu Great Western Railway, mõned laevatehased, seeria aurulaevasid (sealhulgas esimese sõukruviga sõudva transatlantilise aurulaeva) ning palju olulisi sildasid ja tunneleid.