2_-_Specifications_1.pdf

MORGAN BRIDGE RIPARIAN RESTORATION

DESIGN‐BUILD SPECIFICATIONS

PART 1: GENERAL

1.1. SUMMARY

A. Description of Work: All work shall occur in the BLM, Idaho Falls District, Pocatello Field Office, Morgan Bridge Riparian Restoration Project Area. The Contractor will be responsible for furnishing labor, equipment, supplies, and materials to design and construct riverbank stabilization, riverbank recontouring, riparian vegetation plantings, two (2) sections of a pedestrian trail system with associated gates, construction of 4‐wire fence with steel structures and associated gates, removal of identified existing 4‐wire fences, and replacement of an existing culvert with a fish friendly structure capable of withstanding vehicular traffic.

1. Bank Stabilization: Design and construct bank stabilization and rehabilitation plan. The

Contractor shall be responsible for identifying areas in need of stabilization along the riverbank within the project location. The Contractor shall submit the identified areas for Government selection and approval. Work is be focused on BLM managed lands within the Morgan Bridge Riparian Restoration Project north of Morgan Bridge Campground. Design shall not exclusively include traditional hardened armoring of the riverbank to diminish erosion along the acquired parcel. The design shall focus on non‐ traditional non‐hardened armoring bank stabilization methods and vegetation plantings to alleviate erosive pressures located along the river’s bank.

The Contractor is responsible for performing a site survey of the riverbank and channel along the Blackfoot River within the boundaries of the Morgan Bridge Riparian Restoration Project Area as identified on included maps.

The Contractor shall be responsible for ensuring all work is conducted on BLM managed lands.

The Contractor is responsible for filing for and obtaining appropriate permits for in‐ stream work, such as the USACE 404 permit and any fees associated with this.

2. Bank Recontouring: Design and construct riverbank recontouring and rehabilitation along the BLM, Idaho Falls District, Pocatello Field Office, Morgan Bridge Riparian Restoration Project Area north of Morgan Bridge Campground. The Contractor shall be responsible for identifying areas in need of recontouring along the riverbank within the project location. The Contractor shall submit the identified areas for Government selection and approval. The design shall focus on recontouring the existing riverbank and vegetation plantings to alleviate erosive pressures located along the river’s bank.

The Contractor is responsible for performing a site survey of the riverbank and channel along the Blackfoot River within the Boundaries of the Morgan Bridge Riparian Restoration Project Area as identified on included maps.

Morgan Bridge Riparian Restoration Design‐Build ‐ Specifications

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The Contractor shall be responsible for insuring that all work is conducted on BLM managed lands.

The Contractor is responsible for filing for and obtaining appropriate permits for in‐ stream work, such as the USACE 404 permit and any fees associated with this project.

3. Riparian Vegetation Plantings: Design and install riparian vegetation plantings. The Contractor shall be responsible for identifying areas in need of vegetation plantings along the riverbank within the project location. The Contractor shall submit the identified areas for Government selection and approval. Plantings may consist of approved herbaceous and/or woody species. Riparian vegetation plantings may be completed in concert with either bank stabilization and/or bank recontouring work.

4. Fence Removal: Remove existing fencing and all associated structures, such as wire, t‐ posts, braces, etc., as identified on included maps (approximately 4.25 miles) from within the Morgan Bridge Riparian Restoration Project Area.

5. Fence Construction: Design and construct two sections of 4‐wire barbed fence and related steel structures (approximately 4000 Linear Feet combined). Spacing for wires shall be: 16”, 6”, 12”, 8” starting from the bottom. Two (2) steel gates appropriate for vehicle use (12” wide) would be installed as identified on included maps.

The Contractor shall be responsible for insuring that all infrastructure is installed on BLM managed lands.

6. Pedestrian Trail System: Design and construct two (2) sections of a pedestrian trail system, as identified on included maps. The first section of trail, The West Side Connector Trail, is approximately 0.31 miles in length. Steel gates for pedestrian use shall be installed at the north and south ends of this section of trail. The second section of trail, The West Nature Trail, is approximately 0.48 miles in length. Both sections of trail shall be built to Universal Designs, utilizing natural materials to provide for a hardened surface. Both sections of pedestrian trail shall connect to existing road system at their terminus.

7. Culvert Replacement: Remove existing culvert and design and construct a fish friendly structure capable of supporting full sized vehicular use.

The Contractor shall be responsible for insuring that all work conducted, and infrastructure installed is on BLM managed lands.

B. Location: Work under this contract is located in Bingham County, approximately 23 miles Southeast of Blackfoot, Idaho near the intersection of the Blackfoot River Road and Lincoln Creek Road. Site entrance coordinates, 111.9269204° W, 43.0600066° N. Work locations are shown on the maps.

1.2. REFERENCES

A. Referenced Specifications/Standards with Abbreviations and/or Acronyms:

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Migratory Bird Survey date reference: DOI. April 2012. U. S. Bureau of Land Management. Record of Decision and Approved Pocatello Resource Management Plan. Idaho Falls District, Pocatello Field Office. Pocatello, Idaho.

Attachment A: H‐1741‐1 Fencing: DOI. 12‐6‐1989. Bureau of Land Management. (Please see attached documents.)

Attachment B: Standard Specifications for Construction of Trails and Trail Bridges on Forest Service Projects: USDA. 10/30/2014. Forest Service. National Technology and Development Program. (Please see attached documents.)

Attachment C: H‐9113 – 1 – Roads Design Handbook: DOI. 10‐21‐2011. Bureau of Land Management. (Please see attached documents.)

1.3. DEFINITIONS

A. Approvals: Approval of submittals is an indication that the Contractor's submittals have been reviewed, and there are no objections, except as noted. Approval of deviations shall apply only to those deviations or omissions from requirements of drawings and specifications brought to the Government's attention in writing. After approval of an item, submit a substitute for approval when the approved item cannot be purchased or delivered in time to avoid delay in completion of the project.

B. Acronyms: The following is a list of acronyms with their definition that are referenced in this project:

BLM Bureau of Land Management CO Contracting Officer COR Contracting Officer Representative SCR Special Contract Requirements USACE US Army Corp of Engineers

1.4. SUBMITTALS

A. Scope: Submittals include initial surveys, design specifications, final design drawings, as‐ built drawings, and manufacturers' literature or samples. Maximum size of drawings shall be no greater than 11”x17”.

B. Requirements: Refer to specifications for submittals required. Allow at least 10 working days for review. The Contractor is required to provide one (1) hard copy of each submittal and one electronic copy. Hard copy of the submittals shall be delivered to Jerry Burrows, 1405 Hollipark Drive, Idaho Falls, Idaho 83401. Electronic copies shall be emailed to the Government.

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C. Identification of Submittals: Completely identify each submittal by showing at least the following information:

1. Name and address of submitter, plus name and telephone number of the individual to contact for further information.

2. Name of project as it appears in these specifications.

3. Contract number, drawing number, and specification section number to which the submittal applies.

4. Whether this is an original submittal or re‐submittal.

5. Each item shall clearly note the manufacturer's name and address, trade name, product, lot, style, color, catalog designation or model number, and locations of use.

1.5 CERTIFICATES OF CONFORMANCE

A. Requirements: The Government may permit use, prior to sampling and testing, of materials when accompanied by Certificates of Conformance. Materials used on the basis of a Certificate of Conformance may be sampled and tested. Installation of materials on the basis of Certificates of Conformance shall not relieve the Contractor of responsibility for incorporating materials which conform to requirements of drawings and specifications. Material not conforming to those requirements will be subject to rejection, whether in place or not.

B. Format: The Certificate of Conformance provided by the supplier shall:

1. State that the named product conforms to the Contract requirements.

2. Either be accompanied with a certified copy of test results or certify that such test results are on file with the manufacturer and will be furnished to the Government upon request.

3. Provide the name and address of the manufacturer, the testing agency, and the date of tests.

4. Set forth the means of identification which will permit field determination of the product delivered as being the product covered by the certification.

1.6 QUALITY ASSURANCE

A. Codes and Standards: The work shall comply with codes and standards applicable to each type of work and as listed in the individual sections of these specifications. This contract incorporates materials, applications, and tests by reference with the same force and effect as when they were given in full text.

B. Conflict: Where a conflict occurs between reference documents and project specifications, the project specifications shall govern.

C. Measurements: Where approved manufacturer's diagrams and shop drawings give specific measurements or rough‐in dimensions for equipment, these dimensions shall take precedence over dimensions indicated on the drawings.

1.7 DELIVERY, STORAGE, AND HANDLING

A. Delivery: Protect products incorporated into the work from damage while in transit to the

P a g e 5 | 11 site. Products must be delivered in original unopened containers with manufacturer's name, brand designation, and contents legibly indicated.

B. Storage: Provide temporary storage facilities for products. Storage shall comply with the manufacturer's instructions. The storage area shall permit access for inspection and handling.

C. Handling: Load and unload products in a manner that protects them from damage.

1.8 PROJECT/SITE CONDITIONS

A. Access to the Work sites: Access is generally provided by two‐track trails; cross‐country travel will be permitted for local access and along fence lines. Steep side slopes, rocks, and brush will make some sections of the riverbank and fence line inaccessible to highway vehicles. Where access to work crosses private property, potentially the northeast portion of the Blackfoot River Corridor, the Contractor shall coordinate with the Government to obtain permission for access.

1.9 SEQUENCING AND SCHEDULING

A. Work Schedule: The final schedule shall be submitted after the solicitation award at the pre‐work conference. When requested, submit an updated schedule within 3 calendar days. As a minimum, the estimated start and completion dates shall be shown in the estimate.

B. Timing of In‐water work will occur only within the preferred work window of September 1st through April 30th.

C. The Contractor shall notify the Government if ground disturbing activities within the project area will occur between February 1st through August 15th. Ground disturbing activities within listed dates shall have a migratory bird survey completed by the Government within 7 working days.

PART 2: PRODUCTS

2.1 CONTRACTOR‐FURNISHED FENCE MATERIALS

A. Barbed Wire: A strand of two 12‐1/2‐ga galvanized wires twisted together with 2‐point barbs of 14‐ga wire spaced 4 inches apart. Wire and barbs shall be zinc‐coated steel with a zinc coating of at least 0.3 oz/ft2 of coated surface area. The minimum breaking strength of each wire shall be 950 lb‐force. The barbed wire shall conform to ASTM A 121.

B. Barbless Wire: A strand of two 12‐1/2‐ga, galvanized wires twisted together. Wire shall be zinc‐coated steel wire of at least 0.3 oz/ft2 of coated surface area. The minimum breaking strength of each wire shall be 950 lb‐force. The barbless wire shall conform to ASTM A 121.

C. Wood Posts: Posts shall be 8 to 10 inch round pressure treated Douglas Fir grade no. 2 or better or select fencing grade according to WCLIB for the hinge points for the gates.

D. Wire Fence Stays: Twisted wire fence stays manufactured from smooth galvanized 9‐ga wire.

E. Steel Gates (Vehicle Access): Gates shall be 12‐foot steel framed gates.

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*No wire gates shall be installed.

F. Steel Gates (Pedestrian Access): Gates shall be 3‐foot steel framed gates.

*No wire gates shall be installed.

G. Steel Fence T Posts: ASTM A 702; painted solid green or green with white or silver tops "T" with a welded or riveted anchor plate. Furnish with clip‐type wire fasteners (punched tabs for fastening wires are not acceptable). Steel T posts shall be manufactured from wrought, rail, or new billet steel and shall have a minimum weight of 1.33 lb./lin. ft. The anchor plates shall weigh a minimum of 0.67 pounds +5 percent and be a minimum of 18 inch2 in area.

H. Steel Pipe Posts: Steel pipe shall conform to the following: Brace clamps and fittings shall be galvanized. Pipe shall be straight, true to section and conform to the following weights:

Pipe Size Group IA (Schedule 40) Group IC(SS40)

Outside Diameter Weight Lbs./Ft. Weight Lbs./Ft.

1‐5/8" (1.66”) 2.27 1.84 2‐3/8" (2.375) 3.65 3.12

I. Brace Wires: Four wires of 9‐ga smooth, galvanized wire or 2 wires of galvanized, 12‐1/2‐ga barbless wire. The minimum weight of zinc coating for 9‐gauge wire shall be at least 0.4 oz of zinc/ft2 of coated surface area; for 12‐1/2‐ga wire at least 0.3 oz of zinc/ft2 of coated surface area.

J. Miscellaneous Wire: Wire for ties, gate loops and fastening wood stays shall be 9 or 12‐1/2‐ga galvanized wire.

K. Clip‐Type Wire Fastener: Galvanized wire, 8 gauge.

PART 3: EXECUTION

3.1 PROJECT MEETINGS

A. Pre‐Work Conference:

1. A Pre‐Work Conference will be held prior to the start of work. The Contractor will be notified in advance of meeting time, date, and place. The purpose will be to review required work, project drawings and specifications, construction schedules, payroll and payments, and administrative provisions of the Contract.

2. The Contractor, subcontractors, and persons responsible for coordination of the work shall be present at the meeting.

3. The Contractor shall summarize and explain procedures planned for the project and provide submittals requested in the specifications.

B. Progress Meetings:

1. To be held at the project site, or as determined by the government.

2. May be called by either the government or the Contractor. Request shall state who

P a g e 7 | 11 should attend and include an agenda.

C. Final Inspection:

1. To be held at the project site, or as determined by the government.

2. Notify the government in writing at least 5 working days before the completion date so the Government can schedule final inspection.

3. The superintendent shall be present during this inspection.

3.2 SURVEY

A. Requirements: The Contractor shall be responsible for identifying areas to perform topographical surveys for design needs. Areas for the topographical surveys shall include the Blackfoot River riverbank, river channel, pedestrian trial locations, and replacement culvert location within the Project Area. Locations for surveys of the bank stabilization, bank recontouring, pedestrian trail, and culvert replacement can be found on the corresponding attached maps. The Contractor is required to set at least two permanent control points that will be referenced in the design and used during construction. Survey monuments or benchmarks disturbed or removed during construction shall be reset by the Contractor at the Contractor's expense.

B. Submittal: The Contractor is required to submit an AutoCAD Civil3D .dwg file, and .txt file of the surveys to the Government for approval.

3.3 BANK STABILIZATION DESIGN

A. Plans: The Contractor shall develop design plans. Bank Stabilization designs shall include a plan which includes the kind, number, and location of bank stabilization structures proposed. Bank stabilization may occur on either bank throughout the Project Area on BLM managed lands north of Morgan Bridge. The Contractor shall submit the design plans to the government at the 30% design, 60% design, 95% design, and 100% design stages for review and approval. The Contractor shall use design plans to prepare a USACE 404 permit application, and any other required permits, allowing for sufficient time for USACE permit review and approval before the anticipated start of construction. Final plans shall be stamped by a registered Professional Engineer in the State of Idaho. The designs plans shall, at a minimum, include the following:

1. Existing Site Plan

2. Proposed Site Plan

3. Flood Plain Details

4. Constructed Channel Element Details

3.4 BANK RECONTOURING DESIGN

A. Plans: The Contractor shall develop design plans. Bank recontouring may occur on either bank throughout the Project Area on BLM managed lands north of Morgan Bridge. The Contractor shall submit design plans to the government at the 30% design, 60% design, 95% design, and 100% design stages. These plans may be submitted in conjunction with the Bank Stabilization Design. The Contractor shall use design plans to prepare a USACE

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404 permit application, and any other required permits, allowing for sufficient time for USACE permit review and approval before the anticipated start of construction. Final plans shall be stamped by a registered Professional Engineer in the State of Idaho. The designs plans shall, at a minimum, include the following:

1. Existing Site Plan

2. Proposed Site Plan

3. Flood Plain Details

4. Constructed Channel Element Details

3.5 RIPARIAN VEGETATION PLANTING DESIGN

A. Plans: The Contractor shall develop a riparian vegetation planting design plan. Riparian vegetation plantings may occur on either bank throughout the Project Area on BLM managed lands north of Morgan Bridge. Plantings may consist of approved herbaceous and/or woody species. Riparian vegetation plans and plantings may be completed in concert with either the bank stabilization and/or the bank recontouring work, though is not limited to those locations.

The design plans shall, at a minimum, include the following:

1. Proposed Site Plan

2. List of Proposed Riparian Species Intended for Use on Site

3. Constructed Riparian Vegetation Planting Details

3.6 PEDESTRIAN TRAIL SYSTEM DESIGN

A. Plans: Contractor shall develop a pedestrian trail system design plan using Attachment B:

Standard Specification for Construction of Trails and Trail Bridges on Forest Service Projects.

The design shall include plans for two (2) sections of pedestrian trails, as identified on included maps. The first section, The West Side Connector Trail (approximately 0.31 miles in length), shall be located on the east side of the existing fence line as indicated on the included maps.

Pedestrian gates (as specified above in Part 2: Products, 2.1‐ Contractor Furnished Materials, Subsection F. Steel Gates (Pedestrian Access) will be included at the north and south ends of the trail within the existing fence.

The second section of trail, The West Nature Trail (approximately 0.51 miles in length), must be set back from the riverbank by a minimum of 50’.

Both sections of pedestrian trail must be built utilizing natural materials that will provide for a hardened surface and must connect to existing roads as identified on included maps. Both sections of Pedestrian Trails shall be 48” wide. Contractor shall submit the design plan to the government at the 30%, 60%, and 100% design stages. The Designs shall, at a minimum, include the following:

1. Proposed Site Plan

2. Constructed Trail System Details.

3.7 FENCE CONSTRUCTION DESIGN

A. Plans: Contractor shall develop fence plans utilizing reference Attachment A: H-1741- Fencing and fencing specs as described. Fence shall be a 4‐wire barbed fence and related steel structures (approximately 4000 Linear Feet combined). Spacing for wires shall be: 16”, 6”, 12”, P a g e 9 | 11

8” starting from the bottom. Steel gates appropriate for vehicle use (12 feet wide) will be installed as identified on included maps. Fence will consist of two (2) sections as identified on included maps.

Steel gates (Vehicle Access) (as specified above in Part 2: Products, 2.1‐ Contractor Furnished Materials, Subsection E. Steel Gates (Vehicle Access)). One (1) steel gate (vehicle access) each will be included associated with the northern and southern fence construction locations as identified in attached maps. Contractor shall submit the design plan to the government at the 30%, 60%, and 100% design stages. The Designs shall, at a minimum, include the following:

1. Proposed Fence Site Plan

2. Constructed Fence System Details.

Contractor shall be responsible for designing the two sections of fencing to ensure ease of maintenance and ensuring that all infrastructure is installed on BLM managed lands.

3.8 CULVERT REPLACEMENT DESIGN

A. Plan: Contractor shall develop design and plan for the removal of and replacement of existing culvert on Deadman Creek using reference Attachment C: H-9113 – 1 – Roads Design Handbook. Replacement structure must be fish friendly (ex. Open bottom culvert) and be capable of supporting and allowing for travel by full sized vehicles. The design shall, at a minimum, include the following:

1. Proposed Site Plan

2. Constructed Culvert Replacement Details

3.9 GENERAL CONSTRUCTION

A. The contractor will be responsible for insuring that all work is conducted on, and infrastructure is installed on BLM managed lands.

B. Permits: The Contractor will submit a USACE 404 permit application, and any other required permits. The Contractor’s design and construction shall comply with all of the requirements of the 404 permit.

C. Health and Safety Plan: Before construction commences, the Contractor shall submit a health and safety plan to the government for approval. The health and safety plan shall include the location of the nearest hospital and procedures to follow in case of an emergency.

D. Clearing and grubbing: The maximum clearing width is 5 feet on either side of the centerline of the pedestrian trail or fence line. Provide minimum disturbance to existing grass and sod.

E. Disposal of debris: Debris shall become the property of the Contractor. Dispose of materials in a legal manner and payment of fees required is the Contractor's responsibility. Sale of material onsite is not permitted unless authorized in writing by the government. Burning of removed materials is not permitted on the work site. Disposal of woody debris, such as

P a g e 10 | 11 shrubs and limbs may be disposed of by scattering.

F. As‐Built Drawings: The Contractor is required to keep a full‐sized copy of the design plans on‐site throughout the duration of the project. As the job progresses, continuously maintain as‐built drawings of the work. Changes shall be noted legibly in red pencil or red ink. These drawings shall be submitted to the government prior to final inspection. Should final inspection reveal changes in the project not so noted on the as‐built drawings, record these changes on the as‐built drawings within 5 working days of final inspection and deliver completed as‐built drawings to the government.

3.10 FENCE CONSTRUCTION

A. General: The contractor will be responsible for insuring that all work is conducted on, and infrastructure is installed on BLM managed lands. Drive steel posts for fence end‐panels, corner‐panels, and stress‐panel posts (Steel ‘T’ posts shall not be used for panels). If the steel post cannot be driven, then set in drilled holes and grout the post solidly in place with Government’s permission.

B. Ratio of Wood to Steel Line Posts: All steel line posts. With treated wood support posts for all steel gates and in‐line structures.

C. Setting Posts: Dig holes for setting steel posts. Holes shall provide adequate open space around the post so backfill can be tamped to the full depth around the post. Backfill gradually and uniformly with soil around each post. Compact backfill firmly from the bottom of the hole to the ground surface. Where existing soils are sandy and posts are loose and unstable, posts shall be set in concrete. All posts shall be firmly set in place.

D. Driving T Posts: Drive into the ground until the anchor plate is completely below the ground surface. Posts shall be driven plumb. When rock formations prevent driving remove anchor plate and excavate or drill holes a minimum of 18 inches deep and slightly larger than the diameter of the post. Place posts in the holes and grout the post solidly in position.

E. Corner panel, End Panel, Stress Panel/H Brace assemblies: Rock jacks/cribs shall not be substituted for these items and shall only be allowed after approval by the Government.

Construct stress panels on crests of hills. Stress panels are required at points between which wire is to be stretched. Construct end panels at the end of fence runs and on both sides of gates.

F. Wire on Standard Fence: Stretch tightly and securely attach to steel posts with standard wire clips. Securely attach wire to steel posts with wire. Wire is properly stretched when it is springy to the touch. The wire shall be free to move through the wire ties as it expands and contracts. Terminate wire at each end post, gate post, corner post, or stress panel. Wrap wire around the post two times and tie off by wrapping around the incoming wire a minimum of four times.

G. Brace Wire: Double‐loop and twist tight with rebar or steel rod. For steel pipe panels, each wrap shall be looped once around the post.

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H. Gates (Vehicle Access): Installed as recommended by the manufacturer.

3.11 FENCE REMOVAL

A. Implementation: The Contractor shall remove all fencing materials associated with fences as identified in included maps (approximately 4.25 miles).

B. Constraints: Contractor shall not remove fencing as identified as conditional on included maps unless associated new fence construction is completed. Conditional fence removal as identified is approximately 0.56 miles.

3.12 WARRANTY

A. Requirements: Materials and equipment furnished under this Contract shall be covered by the most favorable commercial warranties given to customers for such materials or equipment. The rights or remedies provided herein are in addition to and do not limit rights afforded to the Government by other clauses of this Contract. With respect to warranties, expressed or implied, from manufacturers or suppliers for materials or equipment furnished under the Contract the Contractor shall:

1. Obtain warranties that would be given in normal commercial practices.

2. Require warranties to be executed, in writing, for the benefit of the Government.

3. Submit warranties to the government prior to the final inspection.