The city of Denver and state of Colorado have seen their share of transportation successes in recent years thanks in large measure to regional cooperation, federal investment, a 2004 tax increase, partnerships with the private sector and some innovative thinking. But the city and state face numerous challenges in the years ahead that will severely test the transportation system, notably a burgeoning population, stagnant federal investment and limits to increasing taxes at the state level. Those were some of the messages state and local officials delivered to a group of state legislators from eight states at the CSG West Transportation Forum last month in Denver.

The past year has seen the states of Florida, Indiana, Ohio and Pennsylvania close deals with the private sector to undertake some long-awaited transportation projects (the I-4 Ultimate, I-69, Portsmouth Bypass and Rapid Bridge Replacement Project respectively). But much of the talk at a recent conference on public-private partnerships (P3s for short) revolved around why the market for such projects remains sluggish in the United States.

Next month, state and federal officials and representatives of the private sector will converge on New York City for the InfraAmericas U.S. P3 Infrastructure Forum 2015, an annual conference assessing the state of public-private partnerships in infrastructure. In anticipation of that event, here’s a roundup of recent news on P3 projects around the country. I have items on when Maryland Gov. Larry Hogan might decide the fate of a P3 light rail project, why a new Cape Cod bridge might be closer to reality and why an Ohio bypass may cost more than originally advertised. Plus details on how you can register to attend the InfraAmericas forum to join the conversation on this important tool many state policymakers are turning to as they seek to meet the nation’s infrastructure needs.

Maryland Secretary of Transportation Pete Rahn was the keynote speaker at the opening dinner of the 2015 CSG Transportation Policy Academy in Washington, DC on May 11. Rahn, who was appointed by Governor Larry Hogan on January 21st of this year, is the first person to lead transportation departments in three different states—New Mexico, Missouri and now Maryland. In these excerpts of his remarks, Rahn touched on hot button topics like Hogan’s reassessment of two light rail projects in the state and recent decision to lower tolls on bridges and roadways in the name of tax relief. He also weighed in on how he thinks Congress might address expiring federal transportation program authorization and the dwindling Highway Trust Fund.

State lawmakers in Nebraska voted last week (May 14) to override the veto of Gov. Pete Ricketts and approve a six-cents-per-gallon gas tax increase. In doing so, Nebraska became the sixth state to approve a gas tax increase for transportation needs this year. That equals the number of states that moved major transportation funding packages in 2013, the most recent big year for such efforts. The news came during Infrastructure Week just as many participants were hearing that Congress is unlikely to follow suit anytime soon to shore up the dwindling Highway Trust Fund and provide any long-term certainty for state transportation officials.

As states ponder the future of transportation funding, tolling is playing an increasingly significant role. Tolls are helping states close funding gaps, support capital investment and improve mobility. Developments at the federal and state levels make the trend toward increased tolling likely to continue. But some states have seen pushback against the proliferation of tolls and Texas in particular could face a rocky road ahead as that state tries to deal with increased congestion due to population growth.

In this week’s issue of The Current State, CSG’s weekly e-newsletter, I write about the factors that allowed Georgia and Iowa to be successful this year in passing legislation to fund transportation. Georgia and Iowa are two of the five states that have passed major funding measures so far this year. Iowa Senate Transportation Committee Chairman Tod Bowman and Georgia House Transportation Committee Chairman Jay Roberts told me that gubernatorial leadership, uncertainty about what’s going to happen at the federal level and the lessons of past failures all played a role in their 2015 success. In this unused portion of my interviews with the lawmakers, they also suggest an inclusive process helped pave the way to success. I also have items on Georgia’s new electric vehicle fees and South Dakota’s road to success as well as a look at some key meetings coming up this Spring.

February and March were busy months for state legislatures on the transportation front with four states approving major funding packages, several considering measures to revise gas tax indexing mechanisms to avoid losing transportation revenues in the wake of declining gas prices, and a whole host of other states continuing to contemplate or negotiate additional legislation that could bear fruit down the road. Here’s a roundup of the developments since my previous post on this topic.

The continuing evolution of public-private partnerships (P3s) and tolling was another of the issues on my recent Top 5 Transportation Issues for 2015. There have already been a variety of developments this year on some key stories concerning both, including a debate in Kentucky over how to finance a new bridge over the Ohio River, efforts to convince the new Governor of Maryland of the benefits of two light rail P3 projects and a new infrastructure financing tool to encourage private investment proposed by President Obama. Here are a few updates from around the country and links where you can read more.

Earlier this month, I named “project selection” as one of my Top 5 Transportation Issues for 2015. Just in the first month of this year, we’ve already seen a variety of developments in a number of areas that stand to influence project selection in the years ahead. New governors are already putting their stamp on project selection by reviewing projects approved by their predecessors and by nominating new (or in some cases old) leaders to head state departments of transportation. I also have updates on ride-hailing services like Uber and Lyft, public transportation projects, autonomous vehicles and state transportation planning processes.