While Congress has subsidized the Highway Trust Fund with over $60 billion since 2008, some states may do the opposite, i.e., transfer funds from their gas tax-filled transportation trust funds to the state's general fund to cover operating expenses.
"Gov. Jack Markell proposed transferring nearly $40 million for the second year out of Delaware's Transportation Trust Fund to help cover general fund expenses and balance the budget," according to AASHTO Journal.
This practice provides red meat for opponents of raising gas taxes as they often argue that raising gas taxes doesn't necessarily mean that the additional funds will be used for transportation purposes, defeating the argument that gas taxes are user fees.
The Journal adds that last year "the governor also proposed raising the gasoline tax by 10 cents a gallon to sharply increase infrastructure spending, but it did not advance in the legislature."
Of course, the funds transfer works both ways, more often toward subsidizing road spending. Last year we noted that Delaware "lawmakers agreed to raise $30 million for paving projects by borrowing money and increasing weekend tolls on a state highway."
Even Markel's ten-cent gas tax increase proposal was based on borrowing as we noted a year ago:
On Jan. 29, 2014 Markell proposed "a 10-cent increase to the state gas tax that he says would generate $50 million per year for the state's Transportation Trust Fund. He is proposing that DelDOT borrow an additional [$50 million a year for five years] to make up the rest," writes Barban.
The Journal didn't indicate the reason for the Transportation Trust Fund transfer, nor even if it would be repaid. According to Delaware online, Markel was open to "suggestions from legislators that a 'lock-box' be used for new transportation funds."
On the federal level, "roughly $70 billion since 2008, including the latest patch" has been transferred by Congressional authorization from the general fund to the Highway Trust Fund, according to The Hill in August, 2014.
FULL STORY: Markell Budget Again Proposes Shifting Millions from Transportation Fund

Alabama: Trump Terminates Settlements for Black Communities Harmed By Raw Sewage
Trump deemed the landmark civil rights agreement “illegal DEI and environmental justice policy.”

Study: Maui’s Plan to Convert Vacation Rentals to Long-Term Housing Could Cause Nearly $1 Billion Economic Loss
The plan would reduce visitor accommodation by 25% resulting in 1,900 jobs lost.

Why Should We Subsidize Public Transportation?
Many public transit agencies face financial stress due to rising costs, declining fare revenue, and declining subsidies. Transit advocates must provide a strong business case for increasing public transit funding.

Paris Bike Boom Leads to Steep Drop in Air Pollution
The French city’s air quality has improved dramatically in the past 20 years, coinciding with a growth in cycling.

Why Housing Costs More to Build in California Than in Texas
Hard costs like labor and materials combined with ‘soft’ costs such as permitting make building in the San Francisco Bay Area almost three times as costly as in Texas cities.

San Diego County Sees a Rise in Urban Coyotes
San Diego County experiences a rise in urban coyotes, as sightings become prevalent throughout its urban neighbourhoods and surrounding areas.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Smith Gee Studio
Alamo Area Metropolitan Planning Organization
City of Santa Clarita
Institute for Housing and Urban Development Studies (IHS)
City of Grandview
Harvard GSD Executive Education
Toledo-Lucas County Plan Commissions
Salt Lake City
NYU Wagner Graduate School of Public Service