KUALA LUMPUR, Nov 2 (Bernama) -- Both carriageways of the New Klang Valley Expressway (NKVE) between Setia Alam and Shah Alam, from Kilometre (KM) 9.1 to KM 9.4, have been temporarily closed to all vehicles after flash floods caused by heavy rain at 6.20 pm today rendered the stretch impassable.