Q: What is the DOT project at the intersection of Sidney Marcus Boulevard and Buford Highway (Georgia 13)?

—Ben Shapiro, Atlanta

A: Work has begun on the reconstruction of the interchange of Georgia 400 and I-85, Georgia DOT spokesman Mark McKinnon told Q&A on the News. The project will provide connector ramps from 400 south to I-85 north and from I-85 south to 400 north and affect several roads in the area, including Sidney Marcus Boulevard, Buford Highway and Cheshire Bridge Road. The project will cost $21.5 million and is on schedule to be completed by Dec. 31, 2013. A pedestrian trail, which will include a bridge across North Fork Peachtree Creek, will be built from Cheshire Bridge Road to Lenox Road.

Q: Have historians established what President Abraham Lincoln's net worth was at the time of his death? I understand it was surprisingly high.

—Don White, Atlanta

A: Lincoln was likely worth less than $1 million in 2010 dollars, according to www.247wallst.com, as reported by www.businessinsider.com. Lincoln was one of four presidents born in a log cabin and was an attorney for 17 years before becoming president in 1861. He owned a single-family home in Springfield, Ill., at the time of his assassination in 1865. Lincoln was part of group of mid- to late-19th century presidents who were not as wealthy as some of their predecessors and successors, according to the article. It included James Buchanan, Andrew Johnson, Ulysses S. Grant and James Garfield.

Andy Johnston wrote this column. Do you have a question about the news? We’ll try to get the answer. Call 404-222-2002 or email q&a@ajc.com (include name, phone and city).