If you see Canadian Forces soldiers in and around RIM Park in Waterloo this weekend, rest assured it's for a training exercise.

Reserve soldiers for the 31 Combat Engineer Regiment (The Elgins) are building a military bridge near RIM Park for a training project called Exercise Domestic Sapper 14, from Friday to Sunday. 

According a news release, there will be around 50 soldiers who will be wearing tactical equipment vests and helmets and may be carrying weapons, although the weapons won't be loaded with ammunition. 

The military engineers are practicing building and removing temporary bridges, called ACROW bridges, that could be used in an emergency like during a natural disaster, according to the release. 

The bridge will be built on a closed road that isn't used, so there won't be any effects on traffic.