If you're wondering what the heck's happening with traffic in the afternoon in Bossier City, here's the scoop.  The snarl on the north end of Airline Dr. is being caused by work on the city's wastewater system.  The work is being done close to the road near the intersection of Airline Dr. and Linton Rd., so city officials have closed one lane of traffic for the safety of drivers and workers.  The biggest problems are happening between 3 and 6pm, so you might want to alter your travel plans for a while.  The project is expected to be completed in the next couple of weeks.