vhb
As part of this task, VHB will arrange for up to three pre-application meetings with the
Conservation Commission and/or their representative and NHDES pursuant to Env-Wt 311.02.
Task 3. Stream Geomorphic Assessment
Although the project area is in a highly-modified reach of the Nashua River, NHDES has advised
that the proposed new pedestrian bridge will need to comply with Env-Wt 900. Therefore, a VHB
water resources scientist will conduct a geomorphic assessment of Nashua River at the
proposed new pedestrian bridge crossing as required by NH Administrative Rule Env-Wt 904.01
and 904.08. VHB will document field conditions at the proposed crossing and will attempt to
determine bank full width and depth and flood prone width, and will complete the
corresponding NHDES Wetiands Permit Application Stream Crossing Worksheet as needed. VHB
anticipates that an appropriate reference reach may be lacking, and may employ regional
regression equations in making bankfull determinations if needed. VHB understands that
bathymetry will be provided by others. This field work will allow VHB to address the
requirements for stream crossings as outlined in NH Administrative Rule Env-Wt 900 during
permitting of the proposed bridge if required.
Task 4. Rare Species Coordination
VHB will identify state-listed rare species using the NH Natural Heritage Bureau's Online Data
Check Tool and the USFWS IPaC. Our team will consult with the NH Natural Heritage Bureau and
the NH Fish & Game Department Non-Game Program to address recommended avoidance
measures if any rare species are identified. Generally, these avoidance measures can be
negotiated without extensive field surveys. However, if additional field surveys or mitigation
plans are required, VHB’s biologists would be available to conduct field surveys as needed.
Task 5. NHDES Wetlands Permit Application
Because wetland impacts appear to be unavoidable, the project team would develop up to two
wetlands permit applications according to RSA 482-A. Elements of the permit applications will
include:
° Wetlands Permit Application Form
e Project Narrative, including brief Alternatives Analysis
* Attachment to the Wetlands Permit Application addressing review criteria
° USGS Site Location Map
e Evidence of Natural Resource Agency Review
e Representative Site Photographs
e Tax Map, Abutters List, and Abutters Notifications
e Existing Conditions Plan
