The length of time from concept to a project on the ground varies drastically depending on the complexity and size of the project. Permitting often takes quite a bit of time (months to a year). Funding a project with grant money often means an application and review period (months to a year). Sometimes, coastal restoration projects can only be done within a narrow time-frame to avoid negatively impacting wildlife that may be using the nearshore area for spawning or migration. This means that projects can take a few years to implement. Invasive species control may take a very short amount of time to initiate but will have to be monitored for several years. Large and complex projects, such as dam or legacy contaminants removal, can take over a decade to initiate.