; (B) any additional, site-specific areas within the Lower Missouri River Basin for which additional study for flood risk management projects is recommended by the Secretary; and (C) any interim actions relating to existing water resources development projects undertaken by the Secretary during the study period. (b) Definitions In this section: (1) Lower Missouri Basin study The term Lower Missouri Basin study means the Lower Missouri Basin Flood Risk and Resiliency Study, Iowa, Kansas, Nebraska, and Missouri, authorized pursuant to section 216 of the Flood Control Act of 1970 ( 33 U.S.C. 549a ). (2) Small community The term small community means a local government that serves a population of less than 15,000. 213. Portsmouth Harbor and Piscataqua River and Rye Harbor, New Hampshire Not later than 180 days after the date of enactment of this Act, the Secretary shall submit to Congress a written status update regarding— (1) efforts to address the impacts of shoaling affecting the project for navigation, Rye Harbor, New Hampshire, authorized by section 101 of the River and Harbor Act of 1960 (74 Stat. 480)