An infrastructure project in northern California funded in part by funds included in the 2009 America Recovery and Reinvestment Act (ARRA) involved expanding the Caldecott Tunnel between the...

An infrastructure project in northern California funded in

part by funds included in the 2009 America Recovery and

Reinvestment Act (ARRA) involved expanding the Caldecott Tunnel between the California cities of Oakland and

Orinda. A spokesperson for the California state agency in

charge of the project mentioned that the Caldecott Tunnel

project would have a ripple effect on employment. What

does the spokesperson mean by “ripple effect”?

Source: Zusha Elinson, “Caldecott Tunnel Edges Forward, Tribute to

Stimulus Bill,” New York Times, September 10, 2011.