; and (B) in subsection (b)— (i) by striking the subsection designation and all that follows through Not more than and inserting the following: (b) Limitation (1) In general Except as provided in paragraph (2), not more than ; and (ii) by adding at the end the following: (2) Increase The Secretary may increase the maximum amount under paragraph (1) by an amount equal to not more than 20 percent, if the Secretary determines the increase to be appropriate. . (4) Shore damage prevention or mitigation (A) In general Section 111(c) of the River and Harbor Act of 1968 ( 33 U.S.C. 426i(c) ) is amended— (i) by striking No such project shall be initiated and inserting the following: (1) In general Except as provided in paragraph (2), a project under this section shall not be initiated ; and (ii) by adding at the end the following: (2) Increase The Secretary may increase the maximum amount under paragraph (1) by an amount equal to not more than 20 percent, if the Secretary determines the increase to be appropriate. . (B) Certain project Section 3085 of the Water Resources Development Act of 2007 (121 Stat. 1129) is amended— (i) by striking The maximum and inserting the following: (a) In general Except as provided in subsection (b), the maximum ; and (ii) by adding at the end the following: (b) Increase The Secretary may increase the maximum amount under subsection (a) by an amount equal to not more than 20 percent, if the Secretary determines the increase to be appropriate. . (5) Regional sediment management Section 204 of the Water Resources Development Act of 1992 ( 33 U.S.C. 2326 ) is amended— (A) in subsection (c)(1)(C)— (i) by striking The total and inserting the following: (i) In general Except as provided in clause (ii), the total ; and (ii) by adding at the end the following: (ii) Increase The Secretary may increase the maximum amount under clause (i) by an amount equal to not more than 20 percent, if the Secretary determines the increase to be appropriate.