Mortar have been falling from the building's facade
Fallin is Oklahoma's 27th governor and the first woman to hold the post. She won re-election in November with 56 percent of the vote over Democrat Joe Dorman and two independents.
The inaugural ceremonies were held on the Capitol's grand front entrance, which has been closed to visitors for two years because pieces of limestone and mortar have been falling from the building's facade. Makeshift scaffolding erected to protect visitors from falling rock was removed last week ahead of the inaugural ceremonies.
In her address, Fallin touted her accomplishments during her first four years in office, including a state economy that has roared back from the recession with lower unemployment, increasing personal incomes and a record $530 million in the state's Rainy Day Fund.
"I believe the story of the last four years will be a story of an economy lifted out of its deepest recession," Fallin said.
Fallin also charted a course for her second term. She said her top priorities will be increasing the number of Oklahoma residents who receive college degrees or career certificates, improving the state's health and addressing the rising prison population.
She noted the state's overcrowded prisons are filled with nonviolent offenders, many of whom struggle with substance abuse or mental illness.
"They don't need to spend time in a state penitentiary, where they can join gangs and acquire criminal networks," Fallin said.