The three-story adobe building, The Marist College behind the St Augustine Cathedral, is crumbling on the west side of the structure on Tuesday, July 3, 2012, in Tucson, Ariz.

Pima County wants to dump a huge load of dirt on Rio Nuevo β€” and the Rio Nuevo board is super excited about it.

β€œThis is the deal of a lifetime,” Rio Nuevo chairman Fletcher McCusker said at a board meeting Tuesday.

It’s no April Fools’ joke.

Pima County needs to dredge about 200,000 cubic yards of dirt out of a long strip of the Santa Cruz River between West 22nd Street and West Grant Road to address flood control problems.

Rio Nuevo needs to find a solution for an unusable piece of land that used to be a landfill, at the base of β€œA” Mountain along South Mission Road.

It’s β€œdestined to be a parking lot” if left the way it is, McCusker said.

β€œThe county has proposed that instead of them hauling that dirt to Timbuktu, they place it on the Rio Nuevo-owned land immediately west of the river,” he said.

The county would also put dirt on a site closer to Grant Road, said Suzanne Shields, director of the county’s Regional Flood Control District.

Putting all that dirt on the old landfill site could let Rio Nuevo at least put in landscaping β€” at county expense β€” and put in some trails.

At best, Rio Nuevo could build up a portion of the property to make it developable.

It’s also a great deal for county taxpayers when the county saves on hauling costs, board member Edmund Marquez said.

The cost to remediate the landfill site was estimated at an undoable $44 million, McCusker said.

Next, Rio Nuevo and the county will work with a landscape architect on a detailed plan.

In other action:

  • Rio Nuevo saved $5.4 million in interest costs by refinancing 2008 bonds. The new interest rate is 2.78 percent, down from nearly 6.5 percent. The Tucson branch of BBVA Compass bank bought the $70 million issuance. The move frees up $3.6 million from a required reserve fund, which can be reinvested in new downtown projects.
  • The board approved a schedule and spending on the construction of a new Greyhound bus terminal near East Broadway and Euclid Avenue. Construction is scheduled to begin in August.
  • The board approved a $319,000 loan commitment to the Foundation for Senior Living for its $24 million apartment project at West Broadway and South Church Avenue. The developer must win low-income housing tax credits this summer for the agreement to take effect. Rio Nuevo would acquire an easement alongside the project.

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Contact reporter Becky Pallack at bpallack@tucson.com or 573-4346. On Twitter: @BeckyPallack