20230552 Ver 1_ColdSpringsCrk_StrmRehab_Specification_PERMIT_20230417

STREAM RESTORATION SPECIFICATIONS

EQUIPMENT AND OPERATOR SPECIFICATIONS
A) Manner of Construction - Excavation will be done in a manner which will minimize sedimentation in the stream
channel. Silt fence will be installed downstream of the construction area to reduce the risk of sediment entering
the stream.
B) Equipment Operator Performance - Equipment operators shall be experienced and competent in the use of the
equipment to which they are assigned. They shall be expected to demonstrate a level of proficiency with the
equipment which enables them to be productive in all aspects of stream restoration work. Equipment operators
shall be experienced in the construction of Rosgen designed structures; including the cross vane, J-hook vane,
and Toe-wood/Sod mat.
Operators will be instructed by the construction inspector as to the desired result of construction activities.
Operators will be responsible for determining how best to use equipment to achieve the desired results. Chain
saw operators will be required to cut trees, limbs and root masses as necessary to facilitate the removal and
placement of debris in the stream.

C) Environmental Considerations - Earth moving equipment will cross and operate in the stream flow only when
necessary and only when directed to do so by the construction inspector. Equipment shall be new or of low
hours and be maintained to prevent fuel, oil and lubricant spills in the vicinity of the stream. Refueling, repairs
and lubrication will be performed at a safe distances from the stream and only at locations approved by the
construction inspector where water is controlled by runoff control measures.
D) Safety Considerations - At work sites, where equipment will be operated on Forest Roads, flagman shall be
stationed to warn oncoming traffic of congestion. Construction road signs shall be in place and a means of
removing sediment, mud or rocks from roadways shall be established. The contractor will be responsible for
the implementation of these measures.
E) Equipment Specifications
Hydraulic Excavator:
Track mounted, hydraulic powered.
Excavator:
Weight Range 30,000-41,000 lbs
Min. Reach 25 feet
Min Digging Depth 19 feet
Min Bucket size 0.6 Cu Yd.
Min 100 HP
Equipped with hydraulic thumb, with experienced operator as described above. (More than 1 excavator
may be required. Unit price bid should be for one excavator for one hour of running time).

Dump Track Truck:
Track mounted
Min. weight 8,000 lbs
Min. carrying capacity 7,000 lbs
(Unit price bid should be for one truck for one hour of running time and experienced operator).

Payment will be made under:
Hydraulic Excavator /Mobilization........................................................................HOURS/EACH
Dump Track Truck /Mobilization........................................................................HOURS/EACH

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IN-STREAM STRUCTURES SPECIFICATIONS
Structure Stone
Description
The work covered by this section consists of furnishing, stockpiling, placing and maintaining approved stone to be
utilized to construct rock and log vanes, root wad structures, the step-pool structures, stream crossings, sediment and
erosion control measures for use in locations as directed by the Designer. The quantity of stone may be increased,
decreased, or eliminated entirely at the direction of the Designer. Such variations in quantity will not be considered as
alterations in the details of construction or a change in the character of the work.

Materials
#1 crushed stone
stone shall be largely clean of fines, sound, tough, dense, resistant to the action of air and water, and suitable in all other
stone, generally rounded in nature, derived from an off-channel quarry located within a 100 mile radius of the site.
All stone shall meet the approval of the Designer. While no specific gradation is required, the various sizes of the stone
shall be equally distributed within the required size range. The size of an individual stone particle will be determined by
measuring its long dimension.

Acceptance Criteria for Stone
REQUIRED STONE SIZES (INCHES)
CLASS
Minimum Average Maximum
River Stone 2 6 8
4
#1 crushed stone 2 3
Boulder
24 36 48
36" x 20" x 18"
No more than 5 percent of the material furnished can be less than the minimum size specified, more than 10 percent of
the material can exceed the maximum size specified. Boulders shall be relatively flat on either side in the same
dimension, preferably the long dimension.

Construction
The Contractor shall place stone, in locations shown on the construction plans to the thickness, widths, and lengths as
shown on the construction plans or directed by the Designer. All stone shall be placed neatly and uniformly with an even
surface to form an in-stream structure or a sediment and erosion control device or in accordance with the construction
plans and special provisions, and shall meet the approval of the Designer.

Method of Measurement
The quantity of stone required to construct the structures or sediment and erosion control measures detailed in these
special provisions will be incidental to those bid items. However, field conditions may warrant the need for additional stone
greater than the quantity specified or detailed for each bid item. The quantity of stone that has been incorporated into the
project, as directed or approved by the Designer, which exceeds 110% of the quantity required for each bid item will be
measured by weight. Measured by weight will require the quantity to be weighed in trucks on certified platform scales.
Stone that was previously stockpiled for other bid items will not be measured a second time for this provision.

Basis of Payment
When field conditions dictate the need for additional quantity greater than 10% of the bid item, the quantity of stone
measured as provided above, will be paid for at the contract unit price per ton for "Boulder". Such price and
payment will be full compensation for all work covered by this section, including but not limited to furnishing,
weighing, stockpiling, re-handling, placing, and maintaining the stone and disposal of any materials not
incorporated into the project if directed by the Designer.
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Payment will be made under:
#1 crushed stone, River Stone, & Boulder...................................................................................................TON

Log Vane

Description
This structure serves to decrease stress in the near-bank region while promoting scouring in the downstream pool.
Logs are placed at an angle to the stream bank, gradually inclining in elevation until they are located near ½
bankfull elevation directly adjacent to the stream bank. Water flowing downstream is forced over these logs towards
the middle of the channel, effectively scouring out a pool below. The quantity of log vanes may be increased,
decreased, or eliminated entirely at the direction of the designer. Such variations in quantity will not be considered
as alterations in the details of construction or a change in the character of the work.

Materials
Trees to be used for the vane shall be provided by the Forest Service from near the site. All log materials shall be
at least 10 inches in diameter. A sheet of non-woven geotextile fabric (4oz. or greater, 6 feet wide) shall be
placed the length of the vane arm on the upstream side, nailed or stapled to the top log in a manner that they will
be out of site when covered by back fill material. Back fill material shall be obtained from the stream channel bed.

Installation
An excavator, with a bucket that includes a hydraulic thumb, shall be used to push designated trees over to make
the vane logs. Placement of logs to fashion the log vane shall occur under the supervision of Designer. A trench
shall be dug in such a manner that the upstream end of the footer and header logs are buried beneath the bed
surface elevation and pinched with boulders. Logs shall be tightly sealed with minimal gaps between the header
and footer log. Filter fabric shall be placed on the upstream side of the structure, extend from near the toe of the
bank to the header log and shall be placed the entire length of the structure. This area shall be backfilled with
materials excavated on-site to prevent the washout of sediment through log gaps. Header and footer logs shall be
tied in securely to the bank in such a way that eliminates the possibility of water diverting around them. Structures
shall be built to the approval of the Designer. The Designer may adjust the number and placement of structures in
the field.

Basis of Payment
This payment shall be considered full compensation for all labor, equipment, hauling, placing, handling, sorting,
fitting, materials, and incidentals necessary to construct the Log Vane. Trees to be used for the vane shall be
provided by the Forest Service.

Payment will be made under:
EqS
Materials:
Non-LINEAR FOOT
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Debris Jam

Description
This structure serves to create a porous, temporary dam to encourage water and sediment storage and overbank
flow during highflow discharges. This feature acts similar to a tree falling into the stream channel from the
streambank where woody debris collects on the upstream side creating a damming effect. The quantity of debris
jams may be increased, decreased, or eliminated entirely at the direction of the designer. Such variations in
quantity will not be considered as alterations in the details of construction or a change in the character of the work.

Materials
Trees to be used for the debris jam shall be provided by the Forest Service from near the site. Log materials shall
be at least 10 inches in diameter to form the key pieces, but all sizes of branches will be used as well. Back fill
material shall be obtained from the stream channel bed on the downstream side and placed on the upstream side
as directed.

Installation
An excavator will bring locally acquired trees to the site. Contractor will cut logs to length and placed in the stream
to fashion the debris jam as directed by the designer.

Basis of Payment
This payment shall be considered full compensation for all labor, equipment, hauling, placing, handling, sorting,
fitting, materials, and incidentals necessary to construct the debris jam. Trees to be used for the jam shall be
provided by the Forest Service.

Payment will be made under:
Eq

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Cross Vane & Ford Replacement

Description
This work occurs where a culvert is removed and a drivable, natural-bottomed ford is constructed in its place, thus
allowing for passage of organisms. The cross vane structure serves to hold the natural-bottom ford material in
place. The vane decreases stress in the near-bank region while promoting scouring in the downstream pool.
Boulders are placed at an angle to the stream bank, gradually inclining in elevation until they are located near
bankfull elevation directly adjacent to the stream bank. Water flowing
boulders towards the middle of the channel, effectively scouring out a pool below. The upstream invert of the cross
vane would hold elevation of the natural bottom ford.

Materials
All materials shall meet the requirements of boulder as outlined in Special Provision "Structure Stone". Back fill
material shall be obtained from the stream channel bed, likely from the constructed pool. Large woody debris
may be incorporated into the structure as directed by the Designer.

Installation
The Ford: A pump-around operation shall be operational before excavation begins to facilitate working in non-
streamflow conditions. The culvert is excavated and removed, and road approaches to the stream are sloped back to
a slope exceptable to the Designer. At the top of each slope water drainage is directed off the road and away from the
stream/ford with a rolling dip or waterbar. The new road surface is coverede with 3-5 inches of crushed stone and a
cross vane is constructed below the ford to control the fords elevation. The streambed is covered with river stone for a
naturally functioning crossing. Compact the new road surface and crossing with the tracked excavator. Place erosion
control measures in place as directed.
The Cross Vane: A trench shall be dug in such a manner that the footer boulders are buried beneath the bed surface
elevation. An excavator, with a bucket that includes a hydraulic thumb, shall be used to place boulders under the
supervision of Designer. Footer boulders shall be placed first with header boulders placed on top prior to any back
filling of the trench. Boulders shall be selected and positioned such that they butt tightly together and there are multiple
contact points between all boulders (flat smooth surfaces that fit together). Gaps between boulders shall be filled
(chinked) with a combination of class A and No. 57 size stone found on site until plugged. In the center portion of the
channel (vane invert), the header boulder shall be placed with gaps between the rock with the top of the header
boulder at an elevation designated by the Designer. The header boulders in the side, or wing, portion shall be placed in
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such a manner as they slope up from bed elevation to bankfull or below at a 2 to 7 percent slope or as shown in detail.
Header and footer boulders at both banks shall be tied in securely to the bank in such a way that eliminates the
possibility of water diverting around them. A rock sill shall be utilized to further prevent water from cutting around the
structure. The area between the stream bank and vane on the upstream side of the structure will be backfilled with
stream bed material, and the invert of the vane shall meet the goals of the constructed ford.
Structures shall be built to the approval of the Designer. The Designer may adjust the number and placement of
structures in the field.
Basis of Payment
Payment for installation of CrossVane shall be as outlined. This payment shall be considered full compensation for
all labor, equipment, hauling, placing, handling, sorting, fitting, materials, and incidentals necessary to construct
the bouldervane.
Payment will be made under:
Equipment
Materials:
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River Stone, #1 crushed stone, & B..TON
Pump-around(provide & maintain)
Culvert

EROSION CONTROL SPECIFICATIONS

Seed (Native)

Description
Seeding shall occur within 24 hours of ground disturbing activities. Seed shall be applied by hand or with a cyclone
seeder and on steep slopes be immediately covered with leaf litter, raked in from the surrounding area. On stream
banks, Coir 700 matting shall be placed to keep seed and soil in place. Below are native grass species to be sown
and their seeding density of pure live seed.

Community Type: Riparian
Scientific Name Common Name Planting Density
Elymus virginicus Virginia wild rye 22 lbs/acre
Festuca rubra Creeping red fescue 5 lbs/acre
Dichanthelium clandestinum Deertongue 2 lbs/acre
Aster sagittifolius Arrow Leaved Aster 2 lbs/acre
Rudbeckia hirta Black Eyed Susan 2 lbs/acre
Eupatorium fistulosom Joe Pye Weed 1 lbs/acre
Eupatorium perfoliatum Boneset 1 lbs/acre
Materials
All materials shall meet the approval of the Designer.
Basis of Payment
Payment for installation of seed and mulch will be paid for as outlined. This payment shall be considered full compensation for
all labor, equipment, furnishing materials, hauling, rehandling, sorting, materials, and incidentals necessary to seed and
mulch.

Payment will be made under:

Matting

Materials
All materials shall meet the approval of the Designer and include Coir fiber mat (700 weight, 6.5 feet wide), hardwood
stakes, and live .

Installation
Coir fiber mat shall be used on upper and lower stream banks (above and below the bankfull elevation). The
matting shall be fastened in place using both hardwood and pine stakes. Provide stakes made of hardwood,
and 1 inch square, to anchor the matting along the edges. These edge-stakes shall be installed to no less than 1

Place the matting upon final grading, following seed and mulch application. Provide a smooth soil surface free from
stones, clods, or debris which will prevent the contact of the matting with the soil. Unroll the matting on the contour,
starting at the bottom of the slope and apply without stretching such that it will lie smoothly but loosely on the soil
surface. Bury the top end of each piece of matting in a narrow trench at least 6 in. (150 mm) deep and tamp firmly
after staking with evenly spaced stakes. Stake the matting according to the manufactures recommended pattern for
specific product and slope. Where one roll of matting ends and a second roll begins, install matting end-over-end
with approximately 6 inches of overlap. Stake through overlapped area. Install stakes across the matting at ends,
junctions, and trenches approximately 3 feet apart, no less than 1 foot deep.
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Basis of Payment
Payment for installation of matting will be paid for as outlined. This payment shall be considered full compensation for all labor,
equipment, furnishing materials, hauling, stockpiling, rehandling, sorting, fitting, materials, and incidentals necessary to
install matting.

Payment will be made under:
LINEAR FEET

Plantings

Description
Plantings shall consist of container and live staking. Plantings from containers shall be from one gallon containers
and can be planted throughout the year. Live staking shall occur during plant dormancy. Below is a list of woody
vegetation species to be planted on stream banks and floodplains.

Scientific Name Common Name Percent of plantings Spacing (feet)
Container & Bare Root Species:
Alnus serrulata Tag Alder 20% 3
Calycanthus floridus Sweetshrub 10% 3
Clethra acuminata Cinnamon Bark Clethra 10% 4
Hamamelis virginiana Witch Hazel 10% 4
Hypericum densiflorum Bushy St. Johns 10% 4
Itea virginica 10% 4
Xanthorhiza simplicissima Yellowroot 10% 2.5
Platanus occidentalis Sycamore 20% 6
Live Stake Species:
Cornus ammonum silky dogwood 10 3
Salix nigra black willow 20 3
Salix sericea silky willow 20 3
Salix humilis prairie willow 10 3
Sambucus canadensis common elderberry 30 3
Physocarpus opulifolius ninebark 10 3
Materials
All materials shall meet the approval of the Designer.
Basis of Payment
Payment for installation of plantings will be paid for as outlined. This payment shall be considered full compensation for all labor,
equipment, furnishing materials, hauling, rehandling, sorting, materials, and incidentals necessary to plant.

Payment will be made under:

Pump Around Operation

Description
This dewatering plan is required at the two (2) Culvert Removal/Ford Construction sites. The detail below shows
the minimum acceptable criteria and may require additional measures. The contractor will discuss a design/plan
with the COR/Designer for approval that meets or exceeds the standards shown. Maintaining the water turbidity
downstream (not exceeding the turbidity of the upstream waters) is the responsibility of the contractor throughout
the duration of the project. Pumps capable of pumping streamflow shall be on-site until in-stream work is
completed. Overnight pumping is not permitted. The contractor is responsible for maintaining the new construction
area in as dry a condition as possible during construction.

Installation
See detail below.
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Basis of Payment
Payment as outlined. This payment shall be considered full compensation for all labor, equipment, furnishing materials, hauling,
stockpiling, rehandling, sorting, fitting, materials, and incidentals necessary to install and maintain the pump around
operation.

Payment will be made under:
Pump-around (provide & maintain)

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