For highway construction oregon department of transportation salem, oregon

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(n) Repair Temporary Impact Attenuator, ____ Each

(m) Relocating Existing Concrete Barrier Foot

In item (n), the type of attenuator, if applicable, will be inserted in the blank. Item (n) includes repair or complete replacement of impact attenuators damaged by public traffic.

Item (m) includes moving existing concrete barrier from one existing on-site location of actual use to another temporary on-site location of actual use, and later to another permanent on-site location in accordance with Section 00820. Measurement and payment will occur each time the concrete barrier is moved.
No separate or additional payment will be made for; placing, removing and replacing all Type 5 delineators (as required and necessary), placing the concrete barrier in the final permanent position, coating the concrete barrier in accordance with Section 0820, and compliance with any other applicable subsection of Section 0820. Payment will be payment in full for furnishing and placing all materials, and for furnishing all equipment, labor, and incidentals necessary to complete the work as specified. Item (m) includes moving existing concrete barrier from one on-site location of actual use to another on-site location of actual use, and for placing, removing and replacing all Type 5 delineators, as required and necessary.
Replace the paragraph that begins "No separate or additional…" with the following paragraph:
No separate or additional payment will be made for temporary impact attenuator replacements, replacement modules, cartridges, components, or replacements parts that are required to be on-site according to 00225.62(b).

SECTION 00280 - EROSION AND SEDIMENT CONTROL
(Follow all instructions. If there are no instructions above a subsection, paragraph, sentence, or bullet, then include them in the project but make necessary modifications to only include project specific specifications. Delete specifications that do not apply to the project.)
Comply with Section 00280 of the Standard Specifications modified as follows:
(Use the following lead-in paragraph and subsection .05 on projects that are within Portland city limits. Fill in the "(XXX) XX..." with the correct phone number. Obtain the phone number from the Project Manager.)
Add the following subsection:
00280.05 Project Signing - Install a minimum of two "EROSION CONCERNS? CALL (XXX) XXX XXXX" (CG20-10) Type "OO" signs within the Project limits. Place and mount the signs as shown on the standard drawings. Orientate the signs so they are visible to traffic, bicyclists, and pedestrians.
Install the signs before performing clearing, grading, and other land alteration activities.

00280.14 Erosion Prevention Materials - Add the following subsection:

Compost Erosion Blanket - Furnish materials meeting the following requirements:

Compost - Furnish compost material meeting the requirements for Medium Compost in Special Provision 01040.15(b).

Tackifier - Furnish tackifier meeting the requirements in Standard Specification 01030.16.

Organic Additive - Furnish an organic, performance-enhancing additive made of a blend of natural and biodegradable organic ingredients that include mycorrhizae according to Special Provision 01030.12 or an equivalent product approved by the Engineer. The organic additive shall be applied at a rate as recommended by the manufacturer.

Compost erosion blankets may be used as a surface mulch for erosion/sediment control on sloped and flat areas. This technique may be used for both temporary and permanent erosion/ sediment control applications. Compost shall have a uniform depth of 2 inches or as otherwise specified in the plans.

Incorporate the tackifier and organic additive into the compost material during construction, prior to installing the compost erosion blanket. The tackifier and organic additive shall be incorporated to a uniform distribution using an injection system that ensures proper integration and integration rates according to the manufacturer’s recommendations. Additive injection and proper injection rates shall be confirmed by the Engineer.

(Use the following subsection .14(e) when bonded fiber matrix hydraulically applied matting is allowed. Check with the Erosion Control Designer before using this subsection.)
00280.14(e)  Slope and Channel Liner Matting - Add the following paragraph to the end of this subsection:
Where shown, furnish hydraulically applied bonded fiber matrix slope protection matting that consists of fully biodegradable long fiber strands held together by a water resistant bonding agent.
00280.15  Runoff Control Materials - Revise as follows:
00280.15(a)  Check Dams - Add the following subsection:

Type 6: Compost Filter Sock - Furnish compost filter sock materials meeting the following requirements:

Filter Sock Material - Furnish filter sock material produced from a 5 mil. thick continuous HDPE filament, woven into a tubular mesh netting material, with openings in the knitted mesh of 3/8” (10 mm). For areas where removal and disposal of the filter sock is not planned, furnish a 100 percent biodegradable filter sock netting material.

Compost - Furnish Coarse compost material meeting the requirements for Coarse Compost in Special Provision 01040.15(b). The compost shall fill the filter sock to the full diameter of the sock.

Stakes - Furnish wooden stakes 2 inches x 2 inches, and to a length equal to the diameter of the sock plus 1 foot 3 inches to 1 foot 4 inches.

Compost filter socks may be used in direct flow situations perpendicular to runoff channels not exceeding 3 feet in depth. They shall either be made on site or delivered to the jobsite. They shall have a diameter of either 8 inches or 12 inches, depending on site conditions.

00280.16 Sediment Control Materials - Revise as follows:
00280.16(d) Inlet Protection - Add the following subsection:

Compost Filter Sock - Furnish materials meeting Special Provision 00280.15(a), Type 6.

00280.16(e) Sediment Barriers - Add the following subsections:

Type 8: Compost Filter Sock - Furnish materials meeting Special Provision 00280.15(a), Type 6, and the requirements for Coarse Compost in Special Provision 01040.15(b). Compost filter socks may be used in direct flow situations perpendicular to runoff channels not exceeding 3 feet in depth. They can also be used in sheet flow situations in place of silt fence at the base of slopes or around the perimeter of affected areas. Compost filter socks may be seeded or left unseeded, as specified in the Plans. . Compost filter socks shall have a diameter of 12 inches to replace normal (24-inch) silt fences or 18 inches to replace "super silt" (36-inch) fences reinforced with steel posts.

Type 9: Compost Filter Berm - Furnish materials meeting the following requirements:

Compost - Furnish compost material meeting the requirements for Coarse Compost in Special Provision 01040.15(b).

Tackifier - Furnish tackifier meeting the requirements in Standard Specification 01030.16. Incorporate the tackifier into the compost material according to the requirements in Special Provision 00280.14(f).

Compost filter berms may be used for areas that do not receive channeled or concentrated flows. They may be used in place of silt fence at the base of slopes or around the perimeter of affected areas. They may also be used at the top of slopes when used in conjunction with a compost erosion blanket. Compost filter berms may be seeded or left unseeded, as specified in the Plans.

(Use the following subsection .40 paragraphs and bullets on projects that are within Portland city limits.)
00280.40 Installation - Replace the paragraph that begins "Install erosion and sediment…" with the following paragraph:
Install erosion and sediment control BMP as shown and according to the most current edition of the ODOT Erosion and Sediment Control Manual. Install these BMP before performing clearing, grading, or other land alteration activities. Ensure that no visible and measurable sediment or pollutants leave the Project boundaries, enter drainage systems or waterways, or violate applicable water standards.
For purposes of this requirement, "visible and measurable" is defined as:

Deposits or tracking of mud, dirt, sediment or similar material exceeding 1/2 cubic foot in volume on any private or public street or adjacent property, or into any storm or surface water drainage system, either by direct deposit, dropping or discharge, or as a result of erosion; or
Evidence of concentrated flows of water over bare soils; turbid or sediment-laden flows; or evidence of on-site erosion, such as rivulets on bare slopes where the flow of water is not filtered or captured on the site; or
Earth slides, mudflows, earth sloughing, or other earth movement off the Project site.

(Use the following subsection .42(a) paragraph and bullets on projects that are within Portland city limits.)
00280.42(a) Soil Exposure Limitations - Add the following bullets to the end of the bullet list:

Within the City of Portland (October 1 through April 30) - Stabilize all areas immediately, but no later than within 24 hours of exposure.
Within the City of Portland (May 1 through September 30) - Stabilize all areas as soon as practical, but no later than within seven days of exposure.

(Use the following lead-in paragraph and subsection .44(e-4) when bonded fiber matrix hydraulically applied matting is allowed. Obtain the fill-in the blank information from the Erosion Control Designer.)
Add the following subsection:
00280.44(e-4) Bonded Fiber Matrix Matting Placement - Apply bonded fiber matrix hydraulically at the rate of _____ pounds per acre. Apply in successive layers from at least two directions so that 100% coverage of all exposed soil is achieved. Do not apply the bonded fiber matrix immediately before, during, or after rainfall. Follow the manufacturer’s directions on drying so the applied product reaches the recommended state of dryness before being subjected to rainfall or other moisture. This varies from drying completely for up to 24 hours after installation to allowances for less drying, based on characteristics of the product approved for use. Apply bonded fiber matrix using commercial application equipment designed specifically for hydromulch application and approved by the bonded fiber matrix product manufacturer, either in printed literature or in consultation with the manufacturer. Furnish the manufacturer’s product literature or documentation of consultation with the manufacturer upon request.

00280.44 Erosion Prevention BMP - Add the following subsection:

Compost Erosion Blanket - Apply compost erosion blanket on soil surface according to the following requirements:

Soil Preparation - On slopes where vegetation is to be established, prepare soil surface by slightly roughening (scarifying) slopes and removing large clods, rocks, stumps, roots larger than 2 inches in diameter, and debris. On areas where vegetation is not planned, this soil preparation step may be eliminated at the direction of, or with the approval of, the Engineer.

Where practical, track (compact) the soil surface perpendicular to the contours on the slope using a bulldozer before applying compost erosion blanket. Track so the track marks are parallel to the contours.

Compost Application - Apply compost to a uniform depth of 2 inches unless specified otherwise in the plans or Special Provisions. Apply compost using a pneumatic (blower) unit or other mechanical unit that propels the product directly at the soil surface. Ensure the compost has direct contact with the soil to prevent water from moving between the soil-compost interface. Apply compost layer approximately 3 feet over the top of the slope, or overlap it into existing vegetation.

Activating Tackifier/Organic Additive - Activate the tackifier/organic additive by water within 2 weeks of installation.

Seeding - If required in the plans or directed by the Engineer, seed the compost erosion blanket during or after application according to Section 01030 in the Standard Specifications and the Special Provisions. Permanent s. (See 01040.XXX for seed incorporation, etc.) Seed application may be done as late as 106 months after installation of the compost erosion blanket, with prior approval by the Engineer.

00280.45 Runoff Control BMP - Revise as follows:
00280.45(a) Check Dams - Add the following subsection:

Type 6: Compost Filter Sock - Install compost filter socks perpendicular to runoff channels not exceeding 3 feet in depth. Compost filter socks shall be staked with wooden stakes at a minimum interval of 10 linear feet, and perpendicular to the water flow. The stakes shall be projected through the center of the filter sock and into the soil 1-foot deep,deep and leaving 3 inches to 4 inches protruding above the filter sock.

00280.45 Runoff Control BMP - Add the following subsections:

Compost Filter Socks - Compost filter socks may be used in sheet flow situations perpendicular to runoff, and in direct flow situations perpendicular to runoff channels not exceeding 3 feet in depth. They can be used in place of silt fence at the base of slopes or around the perimeter of affected areas. Compost filter socks may have a diameter of 8, 12, or 18 inches.

Ensure the compost filter sock is in solid contact with the ground surface along the entire length of the sock. Cut down and/or remove heavy vegetation, and level extremely uneven surfaces.

Compost Filter Berm - Compost filter berms may be used for areas that do not receive channeled or concentrated flows. They are trapezoidal in shape, with the base of the berm twice the height of the berm, usually to a height of 1 to 2 feet, or as directed by the Engineer.

Install compost filter berms in a one-step process using pneumatic equipment or other mechanical compost spreader. Ensure the compost filter berm is in solid contact with the ground surface along the entire length of the berm. Cut down and/or remove heavy vegetation.
Activate the tackifier/organic additive by water within 2 weeks of installation. If required in the plans or directed by the Engineer, seed the compost filter berm during or after application and according to Special Provision 01030. (See XXXXXX)

00280.46 Sediment Control BMP - Revise as follows:

00280.46(d) Inlet Protection - Add the following subsection:

Type 7: Compost Filter Sock - Install compost filter socks according to the plans.

00280.46(e) Sediment Barriers - Add the following subsection:

Type 8: Compost Filter Sock - Place and arrange compost filter socks as shown or directed.

Type 9: Compost Filter Berm - Install compost filter berms as shown or directed.

(Use the following subsection .48 on projects that require emergency materials. Obtain information from the Erosion Control Designer. Only list items that are included in the Schedule of Items.)
00280.48  Emergency Materials - Add the following paragraphs after the paragraph that begins "Provide, stockpile, and protect...":
Provide and stockpile the following emergency materials on the Project site:
Item Quantity

(Use the following subsection .70 on projects that are within Portland city limits.)
00280.70  Removal - Replace the first sentence of this paragraph with the following sentence:
Within 30 days of the notification of acceptance of permanent stabilization, remove temporary erosion and sediment control devices, materials, and erosion control signing from the area.
Disperse compost filter socks and compost filter berms in place. Remove filter sock material from the area.

(Use the following subsection .90 on projects that are within Portland city limits.)
00280.90  Payment - Add the following bullet to the bullet list under the paragraph that begins "Item (a) includes…":

Erosion control signs

(Use the following subsection .90 when bonded fiber matrix is required. Remove the subsection number and title if the number and title is included above.)
00280.90 Payment - Add the following sentence to the paragraph that begins "Item (f) includes...":
It also includes the bonded fiber matrix matting application.

00280.90 Payment - Add the following to the items under Erosion Prevention:
Compost Erosion Blanket ……………….. Square Yard

Compost Filter Sock ……………………… Linear Foot

Compost Filter Berm ……………………… Linear Foot

(Follow all instructions. If there are no instructions above a subsection, paragraph, sentence, or bullet, then include them in the project but make necessary modifications to only include project specific specifications. Delete specifications that do not apply to the project.)
Comply with Section 00280 of the Standard Specifications modified as follows:
(Use the following lead-in paragraph and subsection .05 on projects that are within Portland city limits. Fill in the "(XXX) XX..." with the correct phone number. Obtain the phone number from the Project Manager.)
Add the following subsection:
00280.05 Project Signing - Install a minimum of two "EROSION CONCERNS? CALL (XXX) XXX XXXX" (CG20-10) Type "OO" signs within the Project limits. Place and mount the signs as shown on the standard drawings. Orientate the signs so they are visible to traffic, bicyclists, and pedestrians.
Install the signs before performing clearing, grading, and other land alteration activities.

00280.14(e) Slope and Channel Liner Matting - Add the following paragraph to this subsection:
For areas that are to be seeded with native grass seed, as identified in the plans and Special Provision 01030.13(f), and that require additional erosion protection, furnish a matting product conforming to this subsection and which is 100 percent biodegradable, has a minimum longevity of two (2) years, and has an open area of 50-60 percent.

00280.14 Erosion Prevention Materials - Add the following subsection:
(f) Compost Erosion Blanket - Compost material conforming to Special Provision 01040.15(b) according to the following:

Revisions - Revise the requirements in Special Provision 01040.15(b) as follows:

Particle Size Requirements - Particle size requirements are as follows:

Sieve Size	Percent Passing (by Weight)

3”	100
1”	90 minimum
3/4"	65 minimum
1/4"	75 maximum

98% of material to have maximum particle length of 3 inches

Compost Properties - Revise the following properties as follows:

Soluble Salt - The soluble salt concentration shall be less than 5.0 dSm (mmhos/cm) tested in accordance with TMECC 04.10-A, "1:5 Slurry Method, Mass Basis".

Carbon to Nitrogen Ratio - Delete requirement.

Additions - Revise the requirements in Special Provision 01040.15(b) to add the following:

Erosion and Sediment Control Testing - Compost erosion blanket material shall be tested at an approved erosion and sediment control testing laboratory facility. Contractor will provide written verification to the Engineer of the acceptance of the materials by the approved testing facility. The following are approved erosion and sediment control testing laboratory facilities:

San Diego State University Soil Erosion Research Laboratory, San Diego, California.

USDA-Agricultural Research Service National Soil Erosion Research Laboratory (NSERL) at Purdue University, West Lafayette, Indiana.

Texas DOT/Texas Transportation Institute (TTI) Hydraulics and Erosion Control Laboratory, Texas A&M University, College Station, Texas.

Organic Additive - The compost erosion blanket shall have a performance-enhancing additive incorporated into the compost material prior to installing the erosion blanket. The additive shall be made of a blend of natural and biodegradable organic ingredients and approved by the Engineer. The additive shall be incorporated into the compost erosion blanket material using an injection system that ensures proper integration and integration rates according to the manufacturer’s recommendations. Additive injection and proper injection rates shall be confirmed by the Engineer.

(Use the following subsection .14(e) when bonded fiber matrix hydraulically applied matting is allowed. Check with the Erosion Control Designer before using this subsection.)
00280.14(e) Slope and Channel Liner Matting - Add the following paragraph to the end of this subsection:
Where shown, furnish hydraulically applied bonded fiber matrix slope protection matting that consists of fully biodegradable long fiber strands held together by a water resistant bonding agent.

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