N.H. Admin. Code § Env-Wr 301.03

Current through Register No. 50, December 12, 2024

Section Env-Wr 301.03 - Roadway Culverts

A roadway embankment whose culvert is set at the natural streambed shall be considered a dam if during the 25 year storm:

(a) The water surface elevation at the culvert inlet is 6 feet or more above the water surface elevation at the culvert outlet; and

(b) It impounds 2 acre-feet or more of water over the crown, or top, of the culvert.

N.H. Admin. Code § Env-Wr 301.03

#1716, eff 2-20-81; ss by #2207, eff 12-13-82; ss by #2900, eff 11-7-84; ss by #4399, eff 4-19-88; ss by #5080, eff 2-22-91; ss by #6462-B, eff 2-21-97; ss by #8285, INTERIM, eff 2-21-05, EXPIRES: 8-20-05; ss by #8414, eff 8-20-05; ss by #10510, eff 1-22-14