Minor traffic delays are possible Saturday morning in Oak Ridge during the Secret City Half Marathon and 5K.

Race Director Hannah Fatheree expects nearly 1,000 runners and walkers on city streets and greenways during the family-friendly events.

“Motorists should also be aware of the early morning course preparations,” a press release said. “While the races start at 9 a.m., there will be volunteers setting out cones along the course as early as 6 a.m. The Oak Ridge Police Department will be out in force directing and stopping traffic where and when needed. While no roads will be shut down due to the race traffic, motorists should expect some minor delays due to runners crossing streets on Melton Lake Drive and Emory Valley Road. Motorists are asked to take it slow in these areas and be mindful of the race participants.”