California’s total volume of construction for September was down 5.7% from August to US$5.68 billion, according to the state’s Construction Industry Research Board. This was the fourth successive monthly decline. Road and bridge construction is on a downward spiral, from US$3.74 billion in 2002, to US$2.89 billion in 2003 and US$2.73 billion in 2004 says CIRB.