New Hampshire Code of Administrative Rules
Env - Department of Environmental Services
Subtitle Env-Wt - Wetlands Programs
Chapter Env-Wt 900 - STREAM CROSSINGS; CERTIFIED CULVERT MAINTAINER PROGRAM
Part Env-Wt 903 - STREAM CROSSINGS: CLASSIFICATIONS AND APPLICATIONS
Section Env-Wt 903.06 - Hydraulic Capacity Report

Universal Citation: NH Admin Rules Env-Wt 903.06

Current through Register No. 13, March 27, 2025

The applicant shall submit a hydraulic capacity report that includes drainage calculations and a narrative to demonstrate that the proposed stream crossing has sufficient hydraulic capacity to meet the applicable design standard with any application for:

(a) A new tier 3 or tier 4 stream crossing for which an alternative design is being submitted pursuant to Env-Wt 904.10; or

(b) A replacement tier 3 or tier 4 stream crossing for which the existing stream crossing cannot accommodate the design storm flow.

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