Model Limits are from River Miles 429 to 510. The model is a distorted model in which the horizontal and vertical scales are not the same. The Horizontal Model Scale is 1 ft (model) = 1500 ft (prototype) and the Vertical Model Scale is 1 ft (model) = 300 ft (prototype). The model footprint is about 200 ft long and about 65 ft wide at its widest. The flood plain is 4" above bottom of river channel and the levees are 2 inches above the flood plain. The entire model is enclosed by a curb.
The model is coated with a safety surface that allows museum visitors to play in the river's flow.