Attachment_5_Construction_Overview.docx

Construction Overview Bedard WRE – Orange, VT Finalized 11/21/19

Directions:

From Barre, Vermont, head west on Vermont Route 302 for 3.8 miles. At the traffic circle, take the exit for Vermont Route 110 (Mill Street). Follow Route 110 for approximately 1.7 miles and turn left onto a shared driveway. At T, turn left onto a farm drive. The project site is located north of the hayfield. (See attached Site Location Map)

Work Overview - Refer to Army Corps permit application and cross-sections sheet for specifications.

Earthwork will be done in 2020 as weather conditions allow. This overview includes the final work overview and should be used if there are differences with the Army Corps permit application.

Overview

· No soil will be moved off site or brought to the site.

· Depression, ditch fills, hummocks and spoils removal areas will be marked out with grade stakes and flagging in advance by NRCS or USFWS.

· Excavator recommended

· This project does not involve any tree planting

· No silt fencing required

Depression and hummocks

· The depressional feature would be excavated to a maximum depth of 24 inches and side slopes would be 5 to 1. Average depth would be 18 inches. No stripping required. Surface left rough. Total material moved -650 cubic yards.

· Material from the depression would be placed on the existing ground next to the depression and contoured to create the hummocks. Surface would be left rough. Sides would be contoured to 5 to 1 side slopes with a maximum elevation of 24 inches (650 cubic yards from depression). No stripping required.

Spoils removal

· Material from the spoils piles would be excavated and placed in the ditch to reestablish sheet flow. The spoils removal areas would be excavated back to existing grade and ditches filled to this same grade. Total material moved 290 cubic yards. No stripping required.

· In addition, approximately 70 cubic yards of spoils material from the north end of the site would be excavated and moved approximately 175 ft to the hummock where it would be graded into the feature.

Woody Debris Placement

· Woody debris in the form of logs, large branches, root wads, stumps and tops would be placed in the depression and surrounding area. Approximately 20 cubic yards of woody debris with at least 50% in the form of 12 inch minimum diameter by 15 ft long logs are to be placed on site. As part of this, 2 logs would be erected upright in the depression to simulate dead trees (snags for wildlife) by pushing the log into the ground with an excavator or other technique. Contractor supplies wood. No invasive plant material permitted. Logs with branches for perches preferred.

Seed and Mulch

· Ditch fills, hummocks, and spoils removal areas would be seeded and mulched with a conservation mix and mulch hay (approximately 0.6 acres).