Make no mistake: Government and privately funded investment in public works projects - not bubble inducing, debt-financed consumer spending - will be the guiding light that leads the way out of this recession.

The American Recovery and Reinvestment Act - otherwise known as the "Stimulus Bill" - provides $120 billion to begin to address our nation’s crumbling infrastructure.

It’s the largest infrastructure investment since Eisenhower’s Federal-Aid Highway Act of 1956, which created the U.S. interstate highway system.

Infrastructure investment - under-funded since the 1960s - will be unprecedented over the next three to five years, and let’s face it: the need is huge.

According to the National Surface Transportation Policy Review Study Commission, $225 billion needs to be spent annually for the next 50 years… that’s over $11 trillion, and that’s just for the transportation sector.

Of course, public infrastructure projects such as roads, bridges and water and sewer systems are by their very nature huge, expensive undertakings, requiring massive amounts of capital and manpower.

But very little actual construction activity is getting underway. Here’s why, and what you can do about it in the meantime.

What’s Going on in Big Infrastructure Project Financing?

So, why is little construction happening? Simple.

The current economic environment has upset the applecart with regards to funding these capital-intensive projects. As tax revenue continue to plummet, over 30 states have serious budget shortfalls, and most have shutdown funding for large capital projects. Most municipalities aren’t in any better shape.

At the Federal level, Congress is transfusing the Highway Trust Fund every year - last year it was $8 billion - as consumers drive less and switch to more fuel-efficient cars and trucks.

Clearly, new and innovative ways to fund infrastructure projects are needed. Last week, the fourth annual U.S. Infrastructure Investment Summit was held in New York to address this issue, and I was delighted to be in attendance at this important two-day event.

This high-level gathering annually brings together a small, but influential group of individuals in the world of infrastructure finance and investing.

In addition to yours truly, attendees included directors and managers of a number of infrastructure investment funds, together with those from Barclays Capital, UBS, the Blackstone Group, Jolene Molitoris (Ohio DOT).