Design a bridge span that enables dynamic channel processes connecting upstream and downstream reaches. At present, the bridge span is not a problem as the channel is confined within the incised corridor that cut down below the pre-settlement floodplain in response to human land use activities in the watershed. Planned restoration actions in upstream and downstream reaches, however, will result in a more dynamic channel system and aggrade the bed over time as the channel erodes into the terrace surface and sediment transport capacity is reduced by additional hydraulic roughness and expanded cross-sectional area. The future condition, assuming natural processes are restored in adjacent reaches, may require design of a wider bridge span in this location.