HUNTSVILLE, Alabama - The Alabama Department of Transportation's revised 10-year road construction plan slams the brakes on a 2010 campaign promise by Gov. Robert Bentley to return a larger share of state gasoline tax dollars to Madison County.

The City of Huntsville calculates that Madison County will get 12 cents worth of road construction for every $1 in gasoline taxes that it sends to Montgomery during the 2014-15 budget year. The city says that will rise to 22 cents per dollar the following year but dip to a single penny in 2016-17, based on the current state transportation improvement plan.

ALDOT has not verified the city's calculations.

Citing declining gas tax revenues, ALDOT Director John Cooper recently chopped what had been a five-year, $4 billion statewide road construction budget to about $1 billion over 10 years.

More than a dozen Huntsville road projects were delayed several years, including Memorial Parkway overpasses at Lily Flagg, Byrd Spring and Mastin Lake roads and extending Interstate 565 past Shields Road.

Local officials hoped for more under Bentley's administration.

While campaigning for governor in Huntsville on Jan. 22, 2010, Bentley pledged to return 80 cents of every $1 in locally-generated gas tax money back to Madison County. A YouTube video shows him signing an oversized copy of the gas-tax promise on the courthouse steps.

"In fact, I will do my best to do better than 80 percent," Bentley tells then-Madison County Commissioners Mo Brooks and Dale Strong, who emceed the event. "But certainly, 80 percent should be a minimum."

Brooks now represents North Alabama in Congress; Strong was elected Commission Chairman in 2012.

Bentley's press secretary, Jennifer Ardis, said information provided by ALDOT indicates that Madison County received "more than 90 cents on the dollar in gas tax revenues" in 2011.

"This number shows that Madison County has received a significant amount of the gas tax collected for local needs," Ardis said Thursday afternoon.

When he signed the gas tax pledge, Bentley was an underdog in a crowded Republican field for governor. But the Tuscaloosa physician went on to top Bradley Bryne in the GOP primary, then easily defeated Democrat Ron Sparks in the general election.

According to Huntsville officials, Madison County got back 42 cents for every dollar in gas taxes it sent to Montgomery during Bentley's first year as governor. That dipped to 11 cents the following year but spiked to $1.16 in the current fiscal year - the first time in memory that the county has received more than it has given in gas taxes.

That trend was set to continue until the ALDOT cutbacks.

The gas tax pledge grew out of a 2006 University of Alabama in Huntsville study that found Madison County was averaging 53 cents worth of road construction for every dollar in gasoline taxes that it sent to Montgomery. Leading up to the 2010 governor's election, Brooks, Strong and Huntsville City Council members Bill Kling and Will Culver asked the candidates to do better.

Democrat Artur Davis was the only candidate who would not sign the pledge.

"We weren't asking for preferential treatment but just some semblance of fair treatment from the state," Kling said Thursday. "I know (Bentley) has a lot of issues he has to judge, but I'd respectfully ask that he take a hard look at our circumstances."

Updated at 3:42 p.m. with comments from Gov. Robert Bentley's press secretary, Jennifer Ardis.

Updated June 21 at 10:57 a.m. to add that ALDOT has not verified Huntsville's gas tax calculations and to clarify statement from governor's office that Madison County received a more the 90 percent gas tax return in 2011.

Updated headline June 21 at 12:01 p.m. to clarify that 12 percent figure comes from city's calculations.