Attachment_7_Roten.pdf

Unit Total Item No. Description Spec. Unit Price Bid

1 Mobilization/Demobilization 200 1 L.S. $ XXXXXXXX $ 2 Excavation 211 1 L.S. $ XXXXXXXX $

TOTAL $

Estimated Quantity

JERRY ROTEN WRP

Supplies or Service

Bid Schedule

CONSTRUCTION SPECIFICATION

200. MOBILIZATION/DEMOBILIZATION

1. SCOPE

The work shall consist of the mobilization and demobilization of the contractor's forces and equipment necessary for performing the work required under the contract.

2. WORK ITEMS

Mobilization/demobilization shall consist of the following:

a. Premiums paid for performance and payment bonds, including coinsurance and reinsurance agreements.

b. Transportation of personnel and equipment to and from the site.

c. Establishment and disassembly/removal of offices, buildings, storage facilities, sanitary facilities, utility service, and other necessary facilities at the site not covered in specific bid items.

d. Establishment of ingress-egress routes not covered in specific bid items.

e. Other items as specified in Section 4 of this specification.

3. MEASUREMENT AND PAYMENT

For items of work for which specific lump sum prices are established in the contract, the quantity of mobilization will not be measured for payment.

Progress payments will be made only to the extent supported by invoice. If the total of such payments is less than the contract lump sum for mobilization, the unpaid balance will be included in the final contract payment. Total payment will be the lump sum contract price for mobilization, regardless of actual cost to the contractor.

Payment will not be made under this item for the purchase costs of materials having a residual value.

Payment of the lump sum contract price for mobilization will constitute full compensation for all labor, materials, equipment, and all other items necessary and incidental to completion of the work.

Compensation for any item of work described in the contract but not listed in the bid schedule will be included in the payment for the item of work to which it is made subsidiary. Such items and the items to which they are made subsidiary are identified in Section 4 of this specification

NRCS-1/06 200-1

OKLAHOMA

NRCS-04/2007 200-2

OK – JERRY ROTEN WRP

4. ITEMS OF WORK AND CONSTRUCTION DETAILS

Items of work to be performed in conformance with this specification and the construction details are:

a. Bid Item 1, Mobilization/Demobilization

(1) This item consists of the mobilization and demobilization of the contractor's forces and equipment necessary for performing the work required under this contract including stabilization and maintenance of the ingress-egress road.

b. Subsidiary Item, Construction of Temporary Creek Crossing

(1) This item consists of placing a suitable conduit and suitable earthfill in the channel of Push Creek, within the boundaries of the construction area, in order to decrease erosion and increase ease of movement for heavy equipment that may need to cross Push Creek. Conduit shall be of such size and material as to withstand any deformation which may be caused by crossing with heavy equipment. Location of the crossing shall be determined by the Contracting Officer’s Representative (COR).

(2) The conduit and earthfill shall be removed from channel when construction is complete. The conduit shall be removed from the construction area and disposed of properly. The earthfill shall be disposed of in the construction area as designated in the field by the COR.

(3) No separate payment will be made for Construction of Temporary Creek Crossing.

Compensation will be included in the payment for Bid Item 1, Mobilization/Demobilization.

211. EXCAVATION

The work shall consist of the excavation required by the drawings and specifications and disposal of the excavated materials.

2. CLASSIFICATION

Excavation shall include all materials encountered regardless of their nature or the manner in which they are removed.

3. BLASTING

The transportation, handling, storage, and use of dynamite and other explosives shall be directed and supervised by a person of proven experience and ability in blasting operations.

Blasting shall be done in such a way as to prevent damage to the work or unnecessary fracturing of the foundation and shall conform to any special requirements in Section 11 of this specification.

4. USE OF EXCAVATED MATERIALS

To the extent they are needed, all suitable materials from the specified excavations shall be used in the construction of required permanent earthfill or rockfill. The suitability of materials for specific purposes will be determined by the contracting officer representative. The contractor shall not waste or otherwise dispose of suitable excavated materials.

5. DISPOSAL OF WASTE MATERIALS

All surplus or unsuitable excavated materials will be designated as waste and shall be disposed of at the locations shown on the drawings.

6. BRACING AND SHORING

Excavated surfaces too steep to be safe and stable if unsupported shall be supported as necessary to safeguard the work and workmen, to prevent sliding or settling of the adjacent ground, and to avoid damaging existing improvements. The width of the excavation shall be increased if necessary to provide space for sheeting, bracing, shoring, and other supporting installations. The contractor shall furnish, place, and subsequently remove such supporting installations.

7. STRUCTURE AND TRENCH EXCAVATION

Structure or trench excavation shall be completed to the specified elevations and to sufficient length and width to include allowance for forms, bracing and supports, as necessary, before any concrete or earthfill is placed or any piles are driven within the limits of the excavation.

NRCS-1/06 211-1

8. BORROW EXCAVATION

When the quantities of suitable materials obtained from specified excavations are insufficient to construct the specified fills, additional materials shall be obtained from the designated borrow areas. The extent and depth of borrow pits within the limits of the designated borrow areas shall be as directed by the contracting officer’s representative.

Borrow pits shall be excavated and finally dressed in a manner to eliminate steep or unstable side slopes or other hazardous or unsightly conditions.

9. OVEREXCAVATION

Excavation in rock beyond the specified lines and grades shall be corrected by filling the resulting voids with portland cement concrete made of materials and mix proportions approved by the contracting officer representative. Concrete that will be exposed to the atmosphere when construction is completed shall contain not less than 6 sacks of cement per cubic yard of concrete.

Concrete that will be permanently covered shall contain not less than 4 1/2 sacks of cement per cubic yard. The concrete shall be placed and cured as specified by the contracting officer’s representative.

Excavation in earth beyond the specified lines and grades shall be corrected by filling the resulting voids with approved compacted earthfill, except that, if the earth is to become the subgrade for riprap, rockfill, sand or gravel bedding, or drainfill, the voids may be filled with material conforming to the specifications for the riprap, rockfill, bedding, or drainfill.

10. MEASUREMENT AND PAYMENT

For items of work for which specific unit prices are established in the contract, the volume of each type of excavation within the specified pay limits will be measured and computed to the nearest cubic yard by the method of average cross-sectional end areas. Regardless of quantities excavated, the measurement for payment will be made to the specified pay limits, except that excavation outside the specified lines and grades directed by the contracting officer representative to remove unsuitable material will be included. Excavation required because unsuitable conditions result from the contractor's improper construction operations, as determined by the contracting officer, will not be included for measurement and payment.

The pay limits shall be defined as follows:

a. The upper limit shall be the original ground surface as it existed prior to the start of construction operations except that where excavation is performed within areas designated for previous excavation or fill. In areas of previous excavation or fill, the upper limit shall be the modified ground surface resulting from the specified previous excavation or fill.

b. The lower and lateral limits shall be the neat lines and grades shown on the drawings.

Payment for each type of excavation will be made at the contract unit price for that type of excavation. Such payment will constitute full compensation for all labor, materials, equipment, and all other items necessary and incidental to the performance of the work, except that extra payment for backfilling overexcavation will be made in accordance with the following provisions:

NRCS-1/06 211-2

Payment for backfilling overexcavation, as specified in Section 9 of this specification, will be made only if the excavation outside specified lines and grades is directed by the contracting officer representative to remove unsuitable material and if the unsuitable condition is not a result of the contractor's improper construction operations as determined by the contracting officer.

Compensation for any item of work described in the contract but not listed in the bid schedule will be included in the payment for the item of work to which it is made subsidiary. Such items and the items to which they are made subsidiary are identified in Section 11 of this specification.

NRCS-1/06 211-3

11. ITEMS OF WORK AND CONSTRUCTION DETAILS

a. Bid Item 2, Excavation

(1) This item consists of furnishing all equipment, labor, and materials necessary to construct the Rectangle Deep-Water Habitat, the Full Circle Deep-Water Habitats, and the Excavated Swale as shown on the drawings.

(2) If the Rectangle Deep-Water Habitat can not be reasonably excavated to the depth shown on the drawings due to high water table, then the length of the habitat shall be adjusted appropriately, in order to attain the same amount of excavation as shown on the drawings. However, the maximum depth possible (up to the depth shown on the drawings) shall be achieved before the length of the habitat is increased.

(3) Measurement and payment shall be by Lump Sum.

b. Subsidiary Item, Placement of Excavation Spoils Material

(1) This item consists of placing excavated spoils material from the Rectangle Deep- Water Habitat, the Full Circle Deep-Water Habitats, and the Excavated Swale in the original borrow area of Dike #2 as shown on the drawings and as described in Construction Specification 212, Earthfill.

(2) The original borrow area of Dike #2 shall be stripped to a depth of 0.3 ft to remove vegetation and other unsuitable material prior to placement of spoils material.

(3) No separate payment will be made for Placement of Excavation Spoils Material.

Compensation will be included in the payment for Bid Item 2, Excavation.

c. Subsidiary Item, Minor Clearing

(1) This item consists of, but is not limited to, the removal of any trees, snags, stumps, shrubs, logs, rubbish, and vegetative materials that may obstruct the work areas.

Disposal shall be to stack the trees, snags, stumps, shrubs, logs, rubbish, and vegetative materials in piles outside the work areas, locations to be designated in the field.

(2) No separate payment will be made for Minor Clearing. Compensation for this item will be included in the payment for Bid Item 2, Excavation.

NRCS-04/2007 211-4

OK-JERRY ROTEN WRP

212. EARTHFILL

The work consists of the construction of earth embankments and other earthfills required by the drawings and specifications.

2. MATERIALS

All fill materials shall be obtained from required excavations and designated borrow areas. The selection, blending, routing, and disposition of materials in the various fills shall be subject to approval by the contracting officer representative.

Fill materials shall be reasonably free of sod, brush, roots, frozen material, or other perishable materials. Except for rock fills, rock particles larger than 6-inch diameter for material place in 10-inch layers shall be removed prior to compaction of the fill.

Topsoil shall consist of friable surface soil reasonably free of grass, roots, weeds, sticks, stones, or other foreign materials.

The types of materials used in the various fills shall be as listed and described in the specifications and drawings.

3. CLEARING, GRUBBING, AND TOPSOIL SALVAGE

The limits of the areas to be cleared and grubbed will be marked by means of stakes, flags, tree markings or other suitable methods. Trees to be left standing and uninjured will be designated by special markings placed on the trunks at a height of about six feet above the ground surface.

All trees not marked for preservation and all snags, logs, brush, stumps, shrubs, and rubbish shall be removed from within the limits of the marked areas. Unless otherwise specified, all stumps, roots, and root clusters having a diameter of one inch or larger shall be grubbed out to a depth of at least two feet below subgrade elevation for structures and one foot below the ground surface at embankment sites and other designated areas.

All materials removed from the cleared and grubbed areas shall be burned or buried at location shown on the drawings or as specified in Section 12 of this specification.

Unless otherwise specified, the topsoil shall be removed from the borrow and earthfill areas and shall be stockpiled at locations shown on the drawings or approved by the contracting officer representative.

NRCS - 1/06 212-1

Objectionable materials encountered during excavation shall be removed and buried at locations shown on the drawings or approved by the contracting officer representative or otherwise removed from the construction site.

4. FOUNDATION

Foundations for earthfill shall be stripped to remove vegetation and other unsuitable materials or shall be excavated as specified.

Except as otherwise specified, earth foundation surfaces shall be graded to remove surface irregularities and shall be scarified parallel to the axis of the fill or otherwise acceptably scored and loosened to a minimum depth of 2 inches. The moisture content of the loosened material shall be controlled as specified for the earthfill, and the surface materials of the foundation shall be compacted and bonded with the first layer of earthfill as specified for subsequent layers of earthfill.

Earth abutment surfaces shall be free of loose, uncompacted earth in excess of two inches in depth normal to the slope and shall be at such a moisture content that the earthfill can be compacted against them to effect a good bond between the fill and the abutments.

Rock foundation and abutment surfaces shall be cleared of all loose materials by hand or other effective means and shall be free of standing water when fill is placed upon them. Occasional rock outcrops in earth foundations for earthfill, except in dams and other structures designed to restrain the movement of water, shall not require special treatment if they do not interfere with compaction of the foundation and initial layers of the fill or the bond between the foundation and the fill.

Foundation and abutment surfaces shall not be steeper than 1 1/2 horizontal to 1 vertical unless otherwise specified. Test pits or other cavities shall be filled with compacted earthfill conforming to the specifications for the earthfill to be placed upon the foundation.

5. PLACEMENT

Fill shall not be placed until the required excavation and foundation preparation have been completed and the foundation has been inspected and approved by the contracting officer representative. Fill shall not be placed upon a frozen surface, nor shall snow, ice, or frozen material be incorporated in the fill.

Fill shall be placed in approximately horizontal layers. The thickness of each layer before compaction shall not exceed 10 inches. Materials placed by dumping in piles or windrows shall be spread uniformly to not more than 10-inch thickness before being compacted. Hand compacted fill, including fill compacted by manually directed power tampers, shall be placed in layers whose thickness before compaction does not exceed 4 inches.

NRCS - 1/06 212-2

Adjacent to structures, fill shall be placed in a manner which will prevent damage to the structures and will allow the structures to assume the loads from the fill gradually and uniformly. The height of the fill adjacent to a structure shall be increased at approximately the same rate on all sides of the structure. Fill shall not be placed adjacent to concrete structures until the concrete has been in place at least 24 hours.

Earthfill in dams, levees, and other structures designed to restrain the movement of water shall be placed so as to meet the following additional requirements:

a. The distribution of materials throughout each zone shall be essentially uniform, and the fill shall be free from lenses, pockets, streaks, or layers of material differing substantially in texture, moisture content, or gradation from the surrounding material.

b. If the surface of any layer becomes too hard and smooth for proper bond with the succeeding layer, it shall be scarified parallel to the axis of the fill to a depth of not less than 2 inches before the next layer is placed.

c. The top surfaces of embankments shall be maintained approximately level during construction, except that a crown or cross-slope of approximately 2 percent shall be maintained to insure effective drainage, and except as otherwise specified for drainfill or sectional zones.

d. Dam embankments shall be constructed in continuous layers from abutment to abutment except where openings to facilitate construction or to allow the passage of stream flow during construction are specifically authorized in the contract.

e. Embankments built at different levels as described under (c) or (d) above, shall be constructed so that the slope of the bonding surfaces between embankment in place and embankment to be placed is not steeper than 3 feet horizontal to 1 foot vertical. The bonding surface of the embankment in place shall be stripped of all materials not meeting the requirements of this specification, and shall be scarified, moistened and recompacted when the new fill is placed against it as needed to insure a good bond with the new fill and to obtain the specified moisture content and density at the contact of the in-place and new fills.

6. CONTROL OF MOISTURE CONTENT

During placement and compaction of the fill, the moisture content of the fill material shall be maintained within the limits required to: (a) prevent bulking and dilatance of the material under the action of the hauling or compacting equipment; (b) prevent the adherence of the fill material to the treads and tracks of the equipment; and (c) insure the crushing and blending of the soil clods and aggregations into a reasonably homogeneous mass.

NRCS - 1/06 212-3

Water shall be applied by sprinkling the materials after placement of the fill, if necessary. Uniform moisture distribution shall be obtained by disking.

Material that is too wet when deposited on the fill shall either be removed or be dried to the specified moisture content prior to compaction.

If the top surface of the preceding layer of compacted fill or a foundation or abutment surface in the zone of contact with the fill becomes too dry to permit suitable bond, it shall either be removed or scarified and moistened by sprinkling to an acceptable moisture content prior to placement of the next layer of fill.

7. COMPACTION

Unless otherwise specified, each lift shall be compacted by routing the fill equipment so that the entire surface of each layer shall be traversed by the track tread, or by an approved equivalent method.

Fill adjacent to structures shall be compacted to a density equivalent to that of the surrounding fill by means of hand tamping or manually directed power tampers or plate vibrators. Unless otherwise specified, heavy equipment including backhoe mounted power tampers, or vibrating compactors and manually directed vibrating rollers, shall not be operated within 2 feet of any structure. Towed or self-propelled vibrating rollers shall not be operated within 5 feet of any structure. Compaction by means of drop weights operating from a crane or hoist will not be permitted.

The passage of heavy equipment will not be allowed: (1) over cast-in-place conduits prior to 14 days after placement of the concrete; (2) over cradled or bedded precast conduits prior to 7 days after placement of the concrete cradle or bedding; or (3) over any type of conduit until the backfill has been placed above the top surface of the structure to a height equal to one-half the clear span width of the structure or pipe or 2 feet, whichever is greater.

8. REQUIREMENTS AROUND METAL CONDUITS

A. Foundation Preparation

Foundation preparation for metal conduits shall conform to one of the following:

(1) If the conduit has at least 2 feet of compacted fill beneath the conduit, a minimum of 6 inches with a maximum of 8 inches below the grade line of the conduit shall be pulverized for a width of 2 conduit diameters.

(2) If the conduit has less than 2 feet of compacted fill beneath the conduit or less than 2 feet of excavation as measured from natural ground to grade line of the conduit, the area beneath the conduit shall be excavated a minimum width of 2 conduit diameters

NRCS - 1/06 212-4

to a depth of 2 feet below gradeline of the conduit and replaced with compacted fill.

A minimum of 6 inches with a maximum of 8 inches below the gradeline of the conduit shall be pulverized for a width of 2 conduit diameters.

(3) If the conduit has at least 2 feet of excavation as measured from natural groundline to gradeline of the conduit, a minimum of 6 inches with a maximum of 8 inches below the gradeline of the conduit shall be pulverized for a width of 2 conduit diameters.

B. Moisture, Backfill, and Compaction

After the conduit is seated into the pulverized bed, the bed shall be watered until it is thoroughly wetted.

Fill within 2 feet of conduit risers and within 2 feet of conduit barrels (except the foundation) shall contain no particles larger than 1/4 inch and shall be hand compacted or compacted with manually directed power tampers.

Fill within 3 inches of the barrel, and the riser shall be placed at a moisture content which permits ease of compaction around the conduit and into the corrugations of corrugated conduit. Each layer of the portion of fill that is within 3 inches of the conduit, and below the springline shall be thoroughly rodded or tamped around the conduit and into each corrugation by hand using a tamping bar.

Fill outside the 3-inch limits but within the 2-foot limits described above shall be at the moisture content specified for the remainder of the fill and shall be compacted to a density equal to the remainder of the fill.

9. REWORKING OR REMOVAL AND REPLACEMENT OF DEFECTIVE FILL

Fill placed at moisture content outside the specified acceptable range of moisture content or otherwise not conforming to the requirements of the specifications shall be reworked to meet the requirements or removed and replaced by acceptable fill. The replacement fill and the foundation, abutment, and fill surfaces upon which it placed shall conform to all requirements of this specification for foundation preparation, approval, placement, moisture control, and compaction.

10. TOPSOIL SPREADING

Unless otherwise specified, topsoil shall be spread to a uniform thickness of 6 inches on all earthfill and spillway cut areas.

NRCS - 1/06 212-5

Spreading shall not be done when the ground or topsoil is frozen, excessively wet or otherwise in a condition detrimental to the work. Surfaces designated to be covered shall be lightly scarified just prior to the spreading operation.

After placement is completed, the surface of the topsoil shall be finished to a reasonably smooth surface.

11. MEASUREMENT AND PAYMENT

For items of work for which specific unit prices are established in the contract, the volume of each type of earthfill within the specified zone boundaries and pay limits will be measured and computed to the nearest cubic yard by the method of average cross sectional end areas. Unless otherwise specified, no deduction in volume will be made for embedded conduits and appurtenances.

The pay limits shall be as defined below, with the further provision that earthfill required to fill voids resulting from overexcavation of the foundation outside the specified lines and grades, will be included in the measurement for payment only where such overexcavation is directed by the contracting officer representative to remove unsuitable material and where the unsuitable condition is not a result of the contractor’s improper construction operations as determined by the contracting officer.

The pay limits shall be the measured surface of the foundation when approved for placement of the fill and the specified neat lines of the fill surface.

Payment for each type of earthfill will be made at the contract unit price for that type of fill. Such payment will constitute full compensation for all labor, materials, equipment, and all other items necessary and incidental to the performance of the work.

Compensation for any item of work described in the contract but not listed in the bid schedule will be included in the payment for the item of work to which it is made subsidiary. Such items and the items to which they are made subsidiary are identified in Section 12 of this specification.

NRCS - 1/06 212-6

12. ITEMS OF WORK AND CONSTRUCTION DETAILS

a. Subsidiary Item, Placement of Excavation Spoils Material

(1) This item consists of placing excavated spoils material from the Rectangle Deep- Water Habitat, the Full Circle Deep-Water Habitats, and the Excavated Swale in the original borrow area of Dike #2 as shown on the drawings and as described in Construction Specification 212, Earthfill.

(2) The original borrow area of Dike #2 shall be stripped to a depth of 0.3 ft to remove vegetation and other unsuitable material prior to placement of spoils material.

(3) No separate payment will be made for Placement of Excavation Spoils Material.

Compensation will be included in the payment for Bid Item 2, Excavation.

NRCS-04/2007 212-7

OK – JERRY ROTEN WRP

OP87

01259

Harris

20 21

WRP Boundry

Ingress-Egress through Gate from County Road

County Road

�ROTEN WRP Ingress-Egress

McCurtain County Oklahoma

Sec 29-T9S-R25E Sec 28-T9S-25E

0 1,300 2,600 3,900 5,200650 Feet