This year, the discussions and panel sessions focused on several key areas. Below are a few of the highlights:

• The Federal Infrastructure Spending Bill

Besides the $120 billion earmarked for infrastructure in the stimulus bill, the Federal Transportation Authorization bill provides for an additional $450 billion of funding over six years, in the form of a national infrastructure bank.

It accomplishes two things: It relies on bonds to provide the necessary funding for major infrastructure projects and it eliminates the huge, upfront payments. Clearly, there will be plenty of capital available from the government for infrastructure projects.

• The Impact of the Global Financial Crisis on Infrastructure Spending

The global financial crisis has changed the financial landscape for the foreseeable future. Retail lenders are far more conservative, warning potential homebuyers that they will need "serious skin in the game" in order to qualify for a mortgage.

The same thing is happening with infrastructure, according to Ben Heap, Executive Director of Infrastructure Asset Management at UBS, and Stephen Howard, a Director at Barclays Capital.

Most of the deals being done right now are more like partnerships with other investors and pension funds. And they have much more equity in them today as opposed to those done several years ago. The reason is that traditional debt financing is hard to come by with state budgets in crisis mode.

As a result, political acceptance of private funding deals is warming fast (money talks) - especially at the municipal level - where partisan politics is often non-existent. At the local level, most deals are small, bottom-up deals involving a few million dollars.

• The Current Lending Environment and Infrastructure Valuation

"Not all infrastructure is the same… many perform differently from an investment standpoint", says Michael Dorrell, Senior Managing Director of Blackstone Group. Toll roads have very low earnings volatility, airports are higher and seaports are the highest.

According to Dorrell, earnings for infrastructure are off only 3% to -5%, versus the S&P index that’s off nearly 85%. Even infrastructure stocks are off 35% to 40% from their highs. His main criteria for valuing good infrastructure assets?

Making sure the capital structure of the underlying asset is durable and robust.