Section Env-Wt 527.04 - Design Requirements for Public Highway Projects In addition to meeting all applicable criteria established in Env-Wt 300, all projects shall:
(a) Protect significant function wetlands, watercourses, and PRAs;(b) Minimize impacts to wetland and riparian function;(c) Maintain wetland and stream hydrology and function to the remaining aquatic resources;(d) Use on-site measures to compensate for any loss of flood storage where the project proposes: (1) Filling or placement of structures in a 100-year floodplain; or (2) Greater than 0.5 acre-feet of fill volume or a road crossing that affects floodplain conveyance;(e) Use on-site minimization and water quality protection measures to prevent direct discharge to surface waters and wetlands, including retention of vegetated filter strips between the construction area and the aquatic resource areas to disperse runoff with no direct discharge to natural wetlands or surface waters; and(f) Where temporary impacts will occur, include re-establishment of a similar ecosystem using vegetative species and spacing that are as similar as practicable to what was removed unless the applicant shows that the proposed vegetative composition will provide higher functions and values. N.H. Code Admin. R. Env-Wt 527.04
Derived from Volume XXXIX Number 28, Filed July 11, 2019, Proposed by #12805, Effective 12/15/2019, Expires 12/15/2029.