Is there a no-instream work date at every bridge or culvert project within a stream?
No, all bridge and culvert permits do not require a no-instream work date. No-instream work dates are generally used where impacts to fisheries habitat and resources could occur at certain times of the year, as a result of the permitted activity. Work can still be performed behind cofferdams; however, the cofferdam must be installed before the no-work period. 15.