N.D. Cent. Code § 32-03-17: Damages for carrier's delay

The detriment caused by a carrier's delay in the delivery of freight is deemed to be the depreciation in the intrinsic value of the freight during the delay and also the depreciation, if any, in the market value thereof, otherwise than by reason of a depreciation in the intrinsic value, at the place where it ought to have been delivered between the day at which it ought to have been delivered and the day of its actual delivery.