The lower Fairfield County community of Norwalk has three crowded exits on I-95 — 14 through 16 — that are consistently packed by drivers heading in either direction. Some of the bottleneck is caused by busy Route 7 that connects to I-95 in Norwalk and brings in traffic from communities such as Danbury, Kent, and beyond. A key problem in that stretch is getting traffic across the crowded Yankee Doodle Bridge over the Norwalk River. The bridge, which has been ranked the state’s most in need of repair, is currently undergoing a $14.7 million rehabilitation that began in August 2018 and is expected to be completed by Thanksgiving. The Lamont administration’s June proposal included a $500 million to $1 billion project to speed up traffic on I-95 between exits 13 and 16. The stretch of highway ranks No. 47 nationally in terms of congestion. The average speed for trucks during rush hour is 32.3 mph.