Attach01.1240LU26Q0045TechnicalSpecs.pdf

MAGPIE CREEK BANK STABILIZATION

DAKOTA PRAIRIE GRASSLANDS

MEDORA RANGER DISTRICT

TECHNICAL SPECIFICATIONS

Mobilization Description This work consists of moving personnel, equipment, material, and incidentals to the project and performing all the necessary work before beginning work at the project site. Mobilization includes the costs associated with obtaining permits, insurance, and bonds. Mobilization is not intended to pay the costs of materials before they are used on the project site. Work also includes cleaning of all equipment used at the project site. Clean all construction equipment prior to entry on the project site. Remove all dirt, plant parts and material that may carry noxious weed seeds into the area. Only construction equipment inspected by the Forest Service will be allowed to operate within the project area. Treat subsequent move-ins of equipment the same as the initial move-in. Clean truck beds and dump boxes hauling to the project site prior to entering the work area.”

Payment Basis. Pay for the accepted work at the contract unit price for the PAY ITEM SHOWN IN THE

SCHEDULE OF ITEMS.

(a) Reimburse for bond premiums before issuing the Notice to Proceed if evidence of payment is received.

(b) When 5 percent or more of the original contract amount is earned from other PAY ITEMS, pay mobilization at the rate of 50 percent, or up to 5 percent of the original contract amount, whichever is less.

(c) When 10 percent or more of the original contract amount is earned from other PAY ITEMS, pay mobilization at the rate of 100 percent, or up to 10 percent of the original contract amount, whichever is less.

(d) Pay any unpaid amount for mobilization upon final acceptance of all work items.

109 – MEASUREMENT AND PAYMENT

109.1 General. Measurement and payment for contract work will be made only for and under those pay items included in the Schedule of Items. All other work and materials will be considered incidental to and included in the payment of the pay items in the Schedule of Items. Payment will be for all labor, equipment, transportation, supervision, operating supplies, materials, and incidentals necessary to complete the work as specified.

Work measured and paid for under one pay item will not be paid for under any other pay item.

109.2 Units of Measurement. Payment will be by units defined and determined according to U.S. standard measure and by the following.

(A) Lump Sum (LS) The quantities that denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job.

(B) Mile (Mi) Measure horizontal along the centerline of each roadway to the nearest 0.1 mile. Parking areas, turnouts and approach road connections are considered incidental to the main road and shall not be paid separately.

(C) Cubic Yard (CY) Measure the cubic yard volume by one of the following:

In place computed by the average end area method from measurements made longitudinally along a centerline or reference.

In a haul vehicle: Measure the cubic yard volume in the hauling vehicle using three-dimensional measurements at the point of delivery Before use, Contractor and CO must mutually agree on the volume of material to be hauled by each vehicle. Material measured in the hauling vehicle may be weighed and converted to cubic yards for payment purposes if the conversion factors are mutually agreed to in writing. Vehicles carrying less than the agreed volume may be rejected or accepted at the reduced volume.

(D) Each (EA) One complete unit which may consist of one or more parts. The quantity is the actual number or units completed and accepted.

(E) Acre (AC) 43,560 square feet. Make longitudinal and transverse measurements for area computation horizontally.

109.4 Methods of Measurement. One of the following methods of measurement for determining payment is Designated on the Schedule of Items for each Pay Item.

(A) Actual Quantities. (AQ) these quantities are determined from measurements of completed work.

(B) Lump Sum Quantities. (LSQ) these quantities denote one complete unit of work as required by or described in the contract, including necessary material, equipment, and labor to complete the job.

(C) Contract Quantities. (CQ) These quantities denote the final number or units to be paid for under the terms of the contract. They are based upon the original design data available prior to advertising the project. Original design data include the preliminary survey information, design assumptions, calculations and drawings. Changes in the number of units Designated in the Schedule of Items maybe authorized under the following:

1. As a result of changes in the work approved by the CO.

2. As a result of the CO determining that errors exist in the original design that cause a Pay Item quantity to change by 15 percent or more.

3. As a result of the contractor submitting to the CO a written request showing evidence of errors in the original design that causes a Pay Item quantity to change by 15 percent of more. The evidence must be verifiable and consist of calculations, drawings, or other data that show how the designed quantity is believed to be in error.

109.05 Scope of Payment. Payment for contract work is provided, either directly or indirectly, under the pay items listed in the bid schedule.

(a) Direct payment. Payment is provided directly under a pay item listed in the bid schedule when one of the following applies:

(1) The work is measured in the Measurement Subsection of the Section ordering the work and the bid schedule contains a pay item for the work from the Section ordering the work.

(2) The Measurement Subsection of the Section ordering the work, references another

Section for measuring the work and the bid schedule contains a pay item for the work from the referenced Section.

(b) Indirect payment. Work for which direct payment is not provided is a subsidiary obligation of the Contractor. Payment for such work is indirectly included under other pay items listed in the bid schedule. This includes instances when the Section ordering the work references another Section for performing the work and the work is not referenced in the Measurement Subsection of the Section ordering the work.

Compensation provided by the pay items included in the bid schedule is full payment for performing contract work in a complete and acceptable manner. Risk, loss, damage, or expense arising out of the nature or prosecution of the work is included in the compensation provided by the pay items.

Work measured and paid for under one pay item will not be paid for under other pay items. The quantities listed in the bid schedule are approximate unless designated as a contract quantity.

Limit pay quantities to the quantities staked, ordered, or otherwise authorized before performing the work. Payment will be made for the actual quantities of work performed and accepted or material furnished according to the contract. No payment will be made for work performed more than that staked, ordered, or otherwise authorized.

Section 204. — EXCAVATION AND EMBANKMENT

Description

204.01 This work consists of excavating material and constructing embankments. This work also includes providing, hauling, stockpiling, placing, disposing, sloping, shaping, compacting, and finishing earthen and rocky material.

204.02 Definitions.

(a) Excavation. Excavation consists of the following:

(1) Common excavation. Material excavated onsite. Common excavation includes all material encountered regardless of its nature or characteristics.

(2) Subexcavation. Material excavated from below subgrade elevation in cut sections or from below the original ground-line in embankment sections.

(3) Borrow excavation. Material used for embankment construction that is obtained from offsite.

(b) Embankment construction. Embankment construction consists of placing and compacting common or borrow excavation. This work includes:

(1) Preparing foundations for embankments;

(2) Constructing embankments;

(3) Benching for side-hill embankments;

(4) Constructing dikes, ramps, mounds, and berms; and

(5) Backfilling subexcavated areas, holes, pits, and other depressions.

(c) Conserved topsoil. Excavated material conserved from excavation and embankment foundation areas that is suitable for growth of grass, cover crops, or native vegetation.

(d) Waste. Excess or unsuitable common excavation and subexcavation that cannot be used.

Construction Requirements

204.03 Preparation for Excavation and Embankment Construction.

Clear the area of vegetation and obstructions.

204.04 Common Excavation. Common excavation consists of material excavated from restoring the creek channel and slough material at the base of the creek bank as shown on the drawing. Dispose of unsuitable excavated material at designated areas adjacent to the construction site as directed by the CO.

Some unsuitable material may be used to construct Beaver Dam Analogs upstream.

204.05 Borrow Excavation. When the supply of suitable common excavation is exhausted furnish unclassified borrow to complete the embankment. Use only approved borrow excavation in embankment construction.

The Contractor is responsible for locating material sources, including established commercial material sources. Secure permits and clearances for use of the source and submit copies of the documents to the

CO.

204.06 Embankment Construction. Construct embankment to the lines and grades shown on the drawings.

Incorporate only suitable excavation material into the embankment. The CO will determine if the material is suitable for its intended use.

Dewater as necessary to perform work.

Place embankment material in horizontal layers not exceeding 12 inches in compacted thickness.

At the end of each day's operations, shape to drain and compact the embankment surface to a uniform cross-section. Eliminate ruts and low spots that could hold water.

During all stages of construction, route and distribute construction equipment uniformly over the width and length of each lift of material.

Use material that is readily compactible and free of frozen lumps, chunks of highly plastic clay, or other objectionable material.

Adjust the moisture content of the backfill material to a moisture content suitable for compaction. Compact each layer using approved compaction equipment until visual displacement ceases.

204.07 Sloping, Shaping, and Finishing

(a) Sloping. Leave earth slopes with uniform roughened surfaces Do not round slopes in wetlands or other sensitive areas. Do not place topsoil or mulch on slopes until approved.

If a shallow landslide occurs on a cut or embankment slope, remove or replace the material and repair or restore damage to the work. Bench or key the slope to stabilize the slide.

Reshape the cut or embankment slope to an acceptable condition.

(b) Shaping. Shape the subgrade to a smooth surface and to the cross-section required. Shape slopes gradually transition into slope adjustments without noticeable breaks. At the ends of cuts and at intersections of cuts and embankments, adjust slopes in the horizontal and vertical planes to blend into each other or into the natural ground.

(c) Finishing. Remove material larger than 6 inches from the top 6 inches of the embankment.

Remove unsuitable material from the embankment and replace it with suitable material.

Measurement

204.08

(a) Common excavation. Measure common excavation in its Original Position. Include the following volumes in common excavation

(a) Use the design volume. The design volume is defined as the bid schedule quantity.

(b) Unsuitable beneath embankment areas,

(c) Shallow landslide material not attributed to the contractor’s method of operations, and

(d) Drainage ditches, channel changes, and diversion ditches.

(b) Borrow excavation. When measuring by the cubic yard, measure in its Final Position.

(1) Include the following volumes in borrow excavation:

(a) Creek bank embankments and berms

(2) Do not include the following volumes for borrow excavation:

(a) Preparing foundations for embankment construction.

(b) Adjustments for subsidence or settlement of the embankment or of the foundation on which the embankment is placed.

(c) Material used to round fill slopes.

Payment

204.09 The accepted quantities will be paid at the contract price per unit of measurement for the Section 204 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section.

DPG SPS 204- 2026

Section 207. — EARTHWORK GEOTEXTILES

207.01 This work consists of providing and installing geotextile in separation, stabilization, filter, and reinforcement applications.

Material

207.02 Conform to the following

The Geotextile may be TenCate Mirafi 180N Geotextile or an approved equal. An “equal” item shall comply with the salient physical, functional, and performance characteristics provided in the Description of Work. (FAR 11.104 –Use of Brand Name or Equal Purchase Descriptions).

Construction Requirements

207.03 General. Identify, store, and handle geotextile according to ASTM D4873 and the manufacturer’s recommendations. Elevate and protect geotextile rolls with a waterproof cover if stored outdoors. Maintain product identification labels in a visible location on the inside of the core.

Limit geosynthetics exposure to less than 10 days of ultraviolet radiation.

Unless otherwise specified, overlap the geotextile in the direction, sequence, and distance according to the manufacturer’s recommendations. Replace or repair geotextile that is torn or punctured according to the manufacturer’s recommendations.

207.04 Geotextile. For reinforced soil slopes, place reinforcement geotextile as applicable. Perform the work as follows:

(a) Surface preparation. Provide a smooth, flat, and firm foundation for the geotextile according to section 204.06

(b) Geotextile placement. Install the geotextile material beneath the riprap armoring the creek bank. The geotextile shall be keyed into the subgrade a minimum of 2 feet around the perimeter of the riprap as shown on the drawings. Place the geotextile smooth, taut, and wrinkle free on the underlying surface. Conform to curves. Overlap 24 inches in the direction of construction.

Hold the geotextile in place with pins, staples, or piles of cover material.

(c) Backfilling. Place the specified material onto the geotextile from the edge of the geotextile or from previously placed cover material. Do not operate equipment directly on the geotextile.

207.05 Acceptance. Geotextile will be accepted by Visual Inspection and Commercial Certification of the Materials.

Measurement and Payment

207.06 There is no Pay Item for Section 207 EARTHWORK GEOTEXTILES it is incidental to pay item 251 RIPRAP.

DPG SPS 207-2026

Section 251. — RIPRAP

251.01 This work consists of furnishing and placing Riprap and Geotextile on a prepared surface.

Material

251.02 Provide hard, durable, angular rock that is resistant to weathering and water action, and free of organic and other unsuitable material. Angular rock is characterized by sharp, clean edges at the intersections of relatively flat surfaces. Do not use shale, rock with shale seams, or other fissile or fissured rock that may break into smaller pieces in the process of handling and placing.

251.03 General. Excavate and backfill according to Section 204. Dress the slope to produce a smooth surface. Place geotextile according to Section 207.

251.04 Placed Riprap. Place riprap to its full thickness in one operation. Do not place riprap material by methods that cause segregation or damage to the prepared surface. Place or rearrange individual rocks by mechanical or hand methods to obtain a dense uniform blanket with a reasonably smooth surface.

251.05 Riprap Gradations

Gradation Requirements for Riprap(1)

Class

Percent of Rock Equal or Smaller by

Count, DX

Range of Intermediate Dimensions, inches(2) Range of Rock Mass, pounds(3)

100 15 to 21 270 to 750 85 11 to 15 110 to 270 50 8 to 11 42 to 110 15 6 to 8 10 to 42

(1) Gradation includes spalls and rock fragments to provide a stable, dense mass.

(2) The intermediate dimension is the longest straight-line distance across the rock that is perpendicular to the rock’s longest axis on the rock face with the largest projection plane.

(3) Rock mass is based on a specific gravity of 2.65 and 85 percent of the cubic volume as calculated using the intermediate dimension.

251.06 Acceptance. is based on visual inspection of the work for compliance with the contract. Use prevailing standards in the absence of specific contract requirements or tolerances. The CO shall approve of the physical characteristics and quality of the materials before placing on the slope.

251.07 When measuring riprap by the cubic yard, measure in its Final Position.

Payment

The accepted quantities will be paid at the contract price per unit of measurement for the Section 251 pay items listed in the bid schedule including Geotextile.

DPG SPS 251-2026

Section 624. — TOPSOIL

624.01 This work consists of furnishing and placing topsoil 6 inches deep on a prepared surface.

Construction Requirements

624.03 Preparing Areas. Shape slopes and disturbed areas to be covered with topsoil. Leave slopes in a uniform and roughened condition.

624.04 Placing Topsoil. Provide at least 2 days’ notice before the start of topsoil placement. Place topsoil on all disturbed areas. Do not place topsoil when the ground or topsoil is frozen, excessively wet, or otherwise in a condition detrimental to the work. Break clods and lumps with harrows, disks, or other appropriate equipment to provide a uniform textured soil. Remove and dispose of clods and stones larger than 2 inches. Construct longitudinal depressions at least 2 inches deep perpendicular to the natural flow of water without overly compacting the topsoil surface.

624.05 Acceptance. Acceptance is based on visual inspection of the work for compliance with the contract and prevailing standards. The CO shall approve of the physical characteristics and quality of the materials before placing on the slope.

Measurement

624.06 Measure the Section 624 pay items listed in the bid schedule. Measure topsoil in its Final Position.

Payment

624.07 The accepted quantities will be paid at the contract price per unit of measurement for the Section 624 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

DPG SPS 624-2026

Section 625. —SEEDING AND MULCHING

625.01 This work consists of soil preparation, seeding, and mulching.

Material

Conform to the following:

Seeding Rate Guidelines

Cultivars listed in the second column are preferred, but local seed collections grown for harvest are acceptable if performance and origin are certified or documented. All seed sources shall be derived from loal collections and grown in a general area extending 300 miles north and 200 miles south of the area to be reclaimed, within similar elevation and precipation zones as western North Dakota, i.e., from Jamestown on the east to Billings, MT on the west.

Seeding depth should be 1/4 inch or less for drilled seed.

For broadcast seeding, multiply pounds of each species seeded by 1.5. The seed bed should be thoroughly worked and firm.

The seeding dates for cool and warm season mixes shall be between May 15th – June 15th. Note that seeding in the fall during the dormant period is discouraged, as it is likely to result in poor establishment

A B C D E

Species

Preferred Cultivar, Ecotype, or Germplasm

Common Name % of Mix

Number Seed per lb.

Number Seed per ft2

Number Seed per acre

Drilled

PLS

lb./acre

Cool Season Grasses:

Elymus canadensis Nassella viridula Pascopyrum smithii

Mandan Lodorm Rodan

Canada wildrye Green needlegrass Western wheatgrass

0.15 0.20 0.25

115,000 180,000 112,000

7.5

10.0 12.5

326,700 435,600 544,500

2.8 2.4 4.9

Warm Season Grasses Bouteloua gracilis Calamovilfa longifolia Schizachyrium scoparium

Alternate Warm Season (for one of above species) Bouteloua curtipendula

Bad River

Goshen Badlands

Pierre

Blue grama Prairie sandreed Little bluestem

Sideoats grama

0.10

750,000 275,000 286,000

180,000

5.0

217,800

0.3 0.8 0.8

1.2 Forbs

Dalea purpurea

OR

Dalea candida

Local

Antelope

Purple prairieclover

White prairieclover

0.04

0.04

290,000

278,000

1.8

1.8

78,408

78,408

0.25

0.3

Helianthus pauciflorus

OR

Solidago rigida

Bismarck

Stiff sunflower

Stiff goldenrod

0.03

85,000

656,000

1.4

60,984

0.7

0.1

Echinacea angustifolia

OR

Ratibida columnifera

Bismarck

Purple coneflower

Prairie coneflower

120,000

737,000

0.5

0.1

Totals 100% 49.6 Forbs 13.4 Alternate Forbs (12.5) of warm season species. However, if seeding during the dormant period in the fall is necessary, Forest Service staff reserve the right to evaluate the seeding in the spring, and where establishment appears weak or poor, may recommend inter-seeding with warm season species.

Construction Requirements

625.03 General. After completion and approval of finished slopes and disturbed areas, apply turf establishment to those portions of the site. Do not seed during windy weather or when the ground is excessively wet, frozen, snow covered, extremely dry, cloddy, hard pan, or not friable.

625.04 Preparing Seedbed. Remove weeds, sticks and other debris detrimental to application, growth, or maintenance of the turf. Break up lumps and clods exposed by the initial pass of tillage equipment into pieces less than 1 inch in diameter. Remove materials greater than 1 inch in diameter that cannot be broken up. Cultivate the seeding area to a minimum depth of 4 inches and prepare a firm, but friable seedbed before seeding. Minimize soil compaction of seedbed.

Mulching. Apply straw mulch within 48 hours after seeding. Use equipment that uniformly distributes the mulch over the seedbed. Use mulch material consisting of straw from cereal grain or native hay. Mulch shall not be accepted if it is wet, musty, moldy, rotten, chopped, ground or contains deleterious material. Place much at a rate of 2 tons per acre. Avoid placing excessive cover that smothers seedlings. Punch mulch into the soil using a puncher immediately following application. Use a puncher that consists of a series of dull, flat disks with notched or cutout edges approximately 20 inches in diameter, ¼ inch thick spaced approximately 8 inches apart and fitted with scrapers. Operate tiller parallel to the contours of the ground. Push the mulch into the soil 3 inches, with the ends of the mulch exposed above the soil surface.

625.05 Protecting and Caring for Seeded Areas. Protect and care for seeded areas. Repair or apply supplemental applications of seed, and mulch as many times as needed until vegetation is established.

Vegetation is considered established when one of the following is attained

(a) A uniform perennial vegetative cover with a density of 70 percent of the native background vegetative cover (percent vegetative cover before ground disturbance); or

(b) A uniform perennial vegetative cover with the density required by permits.

625.06 Acceptance. Material for turf establishment acceptance is based on visual inspection of the work for compliance with the contract. Use prevailing industry standards in the absence of specific contract requirements or tolerances.

Material accepted by visual inspection may be sampled and tested for conformance.

Submit certification of Seed Mixture from the Seed Company and seed tags from bags or a copy of seed tags for all planted material for acceptance.

Measurement

625.07 When measuring turf establishment and supplemental applications by the acre, measure on the Ground Surface.

625.08 The accepted quantities will be paid at the contract price per unit of measurement for the Section 625 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section.

Progress payments will be paid as follows:

(a) 75 percent of the pay item amount will be paid after initial seeding and mulching.

(b) The remaining 25 percent of the pay item amount will be paid after the final acceptance.

DPG SPS 625-2026

Section 801. — HAUL ROAD MAINTENANCE AND SURFACE REPLACEMENT

801.01 This work consists of maintaining haul roads to prehaul conditions to facilitate traffic and proper drainage. Resurface campground, access roads and trailheads with 2 inch minus Scoria.

Construction Requirements

Road and Trailhead grading shall consist of reshaping and finish blading including shoulders and turnouts, to restore the original cross section and grade of the road and trailheads. Remove ruts, berms washes, slough, and other irregularities that prevent normal runoff.

Surfacing. Before placing the surfacing, the contractor shall shape the roadbed/trailheads as described above. CO shall approve the physical characteristics and quality of the materials before placing on the roads and trailheads. Compact the surfacing by operating hauling and spreading equipment over the full width of each layer until visual displacement ceases and only when moisture content is suitable for compaction, as determined by the CO.

Dust Abatement. Maintaining a road surface in such condition that dust is kept within the limits necessary to reduce loss of surface material and provide safe travel to the user. When water is the selected material, it shall be applied as often as necessary to abate dust from all users.

Acceptance. Acceptance is based on visual inspection of the work for compliance with the contract and prevailing standards. The CO shall approve of the physical characteristics and quality of the materials before placing on the road and trailheads.

801.02 Measure the section 801 pay item listed in the schedule of items by the cubic yard volume in the Hauling Vehicle using three-dimensional measurements at the point of delivery.

801.03 The accepted quantities will be paid at the contract price per unit of measurement for the Section 801 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this section.

DPG SPS 801- 2026

BEAVER DAM ANALOGS

This work consists of furnishing labor, equipment, and materials to construct Beaver Dam Analogs (BDAs) within the stream channel.

Definitions. BDAs are low-profile, permeable structures constructed of untreated wooden posts, native woody material, rock riprap and native fill designed to reduce stream velocity and streambank erosion.

Materials

The CO shall be approved all materials prior to placing Untreated round or square wooden posts, minimum 4–6 inches Native woody material (branches, limbs, slash) sourced onsite or from approved locations Native streambed and bank material for partial sealing and backfill.

Class 2 Riprap

Construction Requirements

• Construct BDAs perpendicular to stream flow and key the structure tightly into both streambanks. Drive posts vertically and weave and pack woody and other organic material between posts to create a stable, permeable structure.

• Construct an overflow mattress using branches laid parallel to stream flow on the downstream side of the structure. Secure the mattress to the woven posts and woody material. The overflow mattress shall dissipate energy as flows pass over the structure.

• Place native streambed and bank material, along with 3 cy of riprap keyed into the creek bottom to build a wide base, on the upstream side of the BDA to partially seal voids while allowing flow through and over the structure. The finished BDA crest shall be level to ensure even flow.

• Construct BDAs in 6- to 12-inch vertical lifts. Build up successive layers using mud, turf, leaves, and other native organic material. Lightly compact each lift to ensure the structure is holding water and creating ponding before placing the next lift.

• Operations shall be scheduled and conducted to minimize erosion, silting and muddying of streams.

Acceptance is based on visual inspection of the work for compliance with the contract. Use prevailing industry standards in the absence of specific contract requirements or tolerances.

Measurement Measure this section pay item listed in the bid schedule according to Subsection 109.2

Payment The accepted quantities will be paid at the contract price per unit of measurement for section pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section.

DPG SPS 2026