C05_Attach 2_SOW_Revised.pdf

US Department of Agriculture (USDA)

Statement of Work

Contents Project

General Information

1.0 Scope of Work

2.0 Background

Contractor Requirements

3.0 Technical Requirements / Tasks

4.0 Government Furnished

5.0 Deliverables / Schedule

6.0 Travel ................................................................................................................................................ Error! Bookmark not defined.

7.0 Contractor’s Key Personnel

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Project

Soap Creek CG Streambank Rehabilitation

General Information

1.0 Scope of Work

This project involves repairing approximately 200 ft. of the west bank of Soap Creek adjacent to sites #11 and #12 in Soap Creek Campground on the Gunnison Ranger District. The stream work will include hardening the banks with imported riprap, installing one rock stream barb consistent with Geotextile materials, five root wads, and planting willows.

For details or examples of the work requested, see construction drawings. Drawings rely on specifications outlined in the NRCS Stream Restoration and Design Field Guide and the USDA’s National Engineering Handbook, Part 654, Streambank Armor Protection with Stone Structures, Technical Supplement 14K.

2.0 Background

In 2019, a high spring runoff event significantly widened a section of Soap Creek, threatening the two campsites. The goal of this project is to prevent further stream bank destabilization on the western bank adjacent to the campground, in perpetuity, while simulating the existing stream ecosystem as much as possible, within budgetary constraints, as per USFS design standards. Since this stream work is directly adjacent to a recreational site, aesthetics and recreational functionality are also important considerations.

The GPS location for the project site is 38.549728°, -107.317753°. Affected stream bank is adjacent to Sites #11 and #12 in the Soap Creek Campground along NFSR 721.2C on the Gunnison Ranger District. See maps and drawings supplied for more details.

Figure 1. Project Location, Aerial Photo.

(Yellow line indicates linear extent of stream work.)

Contractor Requirements

3.0 Technical Requirements / Tasks

Stream bank stabilization treatments are to include:

1. Hauling, delivery, and storing of riprap and rockery1 at site, size classification(s) and volume(s) provided in schedule of items;

2. Selection, hauling, delivery, and storing of five (5) logs with full root wads intact and five (5) logs without root wads as well as boulders to key into voids left by roots2, as per construction drawings provided;

3. Installation of one steam barb3, otherwise known as a rock vein or j-hook;

4. Streambank regrading, hardening, and reinforcement with boulders and five (5) root wads;

5. The construction of three (3) rockery steps4 built into stabilized bank for pedestrian access to stream;

6. Hauling away and proper disposal of excess streambed material; and

7. Revegetation of streambank, to include the planting of locally sourced willow plugs and willow cuttings5 sourced onsite, and decommissioning and rehabilitation of disturbed areas, as needed.

1 Rockery to include 1) boulders used in construction of stream access steps (item 5) and 2) boulders used in construction of rootwads (item 2).

2 See section 4 below.

3 As per construction drawings provided, stream barbs are to be constructed of class 5 riprap. Embedded sections are to be lined with geotextile fabric.

4,5 See section 4 below

Additional project stipulations are listed below:

1. The project is to occur during low-water conditions5 using best stream management practices and

2. The contractor is to provide traffic control and dewatering and sediment control plans6, to be enforced for duration of construction activities.

3. Compliance with all applicable standards and specifications.

6 Low-water conditions typically begin in late August and persist until site is no longer accessible due to snowfall. For the purposes of this project, low-water conditions should be understood to fall between August 15th to October 15th.

7These plans do not require a PE Stamp but MUST be approved by USFS personnel prior to commencement of construction activities.

The scope of work of this project falls within the nationwide permit for stream activities; therefore, an Army Corps permit is not required.

Applicable Specifications & Resources Include:

The Federal Highway Association’s Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects, FP-24, Sections 100, 150, 200, 250, 624, 703, 704, & 705

USFS Supplemental Specifications, Sections 100, 150, 250, 624, 703, 704, & 705 The U.S. Department of Interior Bureau of Reclamation’s Bank Stabilization Design Guidelines (Report No. SRH-

2015-25), Chapter 10.1, “Large Woody Debris & Rootwads” and Chapter 10.2 “Native Material Revetments” The National Resource Conservation Service’s Stream Restoration Planning & Design; Fluvial System Stabilization

& Restoration: Field Guide, pp. 96-106.

Staging Areas:

Campsites #11 and #12, as well as the turnout for the walk-in tent sites, are to be closed to the public for the duration of construction activities. Staging areas have been noted in the maps provided; however, a large, dispersed camping area to the south of the developed campground (along NFSR 721.2J) can also be used for additional storage, if needed. The contractor is welcome to camp onsite either in the campground or in one of the many legal, dispersed campsites available along NFSR 721.

For more details, see maps, construction drawings, and schedule of items provided.

4.0 Government Furnished

1. Logs with and without rootwads

2. Willow cuttings

3. Boulders, if available, NOT to include Class 2 or Class 5 riprap.

All government-furnished materials shall be sourced within a ten-mile radius of the construction site, within the Soap Creek drainage. USFS personnel will pre-identify, flag/mark, and map suitable nearby trees, willows, and boulders for contractor prior to commencement of construction activities. Contractor is responsible for harvesting, transporting, and staging logs and boulders. Logs, willows, and boulders may NOT be harvested prior to approval by the assigned project COR, GTE, or designer. The contractor should be advised that suitable boulders for the rootwads and rockery steps may not exist in necessary quantities on or near the project site; however, they can be sourced from local vendors.

5.0 Deliverables / Schedule

Key Deliverables

Item No. Deliverable Objective Due 1 Submit traffic control and water/ sediment control pans

Receive USFS Project Manager Approval prior to mobilization of equipment to site

No later than two (2) weeks prior to mobilization of equipment

2 Approval of traffic control & water/ sediment control plans

Receive notification of either 1) approval of submitted plans or 2) requested modifications

No later than one (1) week prior to mobilization

3 Submit revised traffic control and water/sediment control plans (if required)

Receive USFS Project Manager Approval prior to mobilization of equipment to site

Not later than three (3) days prior to mobilization

4 Mobilization Mobilize equipment to project site By August 15th 5 Complete construction activities Completion of all field tasks By October 15th

6 Final Site Inspection Formal acceptance of work by USFS Project Manager Prior to demobilization. Final site inspection must be scheduled w/ USFS personnel no later than one

(1) week prior to scheduled demobilization.

7 Demobilization and receipt of final payment

Closeout project After formal acceptance of work by USFS Project Manager and before snowfall closes CG access

For more information, please see construction schedule attached. Schedule is used as a tool to estimate duration of construction activities. It is not required that contractor adheres to construction schedule exactly if requirement in table above are met.

7.0 Contractor’s Key Personnel

Supply resume for head of field operations/onsite supervisor.