Georgia athletic director Greg McGarity told supporters in an email Friday that the Bulldogs are working on a contract extension for longtime coach Mark Richt.

Richt said after the Bulldogs' 37-14 victory over Louisville in the Belk Bowl on Tuesday night that he planned to return to the sideline for the 2015 season, which would be his 15th at Georgia.

He guided the Bulldogs to a 10-3 record this past season -- his ninth 10-win season at Georgia.

Mark Richt has a 136-48 record -- including a 78-34 mark in SEC games -- since becoming coach at Georgia in 2001. Kim Klement/USA TODAY Sports

"I look forward to working alongside Mark in the future and in helping him move our program forward in all areas," McGarity wrote in the email to athletic department donors, which was obtained by ESPN.com. "We will be working on a contract extension with Mark over the coming days. I know Mark is focused on completing his coaching staff and recruiting."

Richt has three years left on a contract that pays him $3.2 million annually and runs through the 2017 season. He is the seventh-highest-paid coach in the SEC. The school would owe Richt $800,000 per year if he was dismissed before the end of the contract.

The 54-year-old Richt has been among the winningest coaches in college football since 2001. His .739 winning percentage (136-48 record) ranks fourth among active FBS coaches who have coached at least 100 games in FBS conferences, trailing only Ohio State's Urban Meyer (.844), Oklahoma's Bob Stoops (.792) and Alabama's Nick Saban (.746).

Richt is one of only five coaches in NCAA Division I history to win 115 games or more in his first 13 seasons, and he has guided the Bulldogs to two SEC championships, five appearances in the SEC championship game and 14 consecutive bowl games.

McGarity said the UGA athletic department is also working on upgrading the football team's locker room at Sanford Stadium and the future construction of an indoor practice facility.

"Our support staff is also focused on a number of construction projects, including the indoor practice facility and future enhancements to football areas in Sanford Stadium," McGarity wrote. "We will keep you updated on progress in these areas as they develop."

Meanwhile, Richt has rewarded defensive coordinator Jeremy Pruitt with a $450,000 annual raise, which increases his salary to $1.3 million annually. Under Pruitt's direction, Georgia's defense surrendered 20.7 points per game (down from 29 points per game in 2013) and ranked fifth nationally in pass defense (170.4 yards).

Pruitt's new deal with Georgia will run through the 2017 season.

"Our defense has performed overall at a very high level this season and much of it is due to Jeremy's leadership," Richt said in a statement. "It's important that we solidify his tenure at Georgia and continue to build our defense in all areas including recruiting, coaching and player development."

Pruitt was considered a potential candidate at LSU, where defensive coordinator John Chavis left for the same position at Texas A&M.