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STATE OF CALIFORNIA-BUSINESS, TRANSPORTATION AND HOUSING AGENCY GRAY DAVIS, Governor


DEPARTMENT OF TRANSPORTATION

DES-OE MS #43

1727 30TH Street, 2ND Floor

Sacramento, CA 95816





** WARNING ** WARNING ** WARNING ** WARNING **

This document is intended for informational purposes only.

Users are cautioned that Caltrans does not assume any liability or responsibility based on these electronic files or for any defective or incomplete copying, exerpting, scanning, faxing or downloading of the contract documents. As always, for the official paper versions of the bidders and non-bidder packages, write to the California Department of Transportation, Plans and Bid Documents, Room 0200, P.O. Box 942874, Sacramento, CA 94272-0001, telephone (916) 654-4490 or fax (916) 654-7028. Office hours are 7:30 a.m. to 4:15 p.m. When ordering bidder or non-bidder packages it is important that you include a telephone and fax number, P.O. Box and street address so that you can receive addenda.

Note: Addenda information is NOT included with the electronic documents available via electronic file transfer. Only bidder or non-bidder package holders listed with the Caltrans Plans and Bid Documents section as described above will receive addenda information.
September 10, 2002
11-SD-76-54.9/55.4

11-079104

ACSTP-P076(022)E
Addendum No. 1
Dear Contractor:
This addendum is being issued to the contract for construction on State highway in SAN DIEGO COUNTY FROM 0.2 KM WEST OF RINCON RANCHO ROAD TO 0.3 KM EAST OF RINCON RANCHO ROAD.
Submit bids for this work with the understanding and full consideration of this addendum. The revisions declared in this addendum are an essential part of the contract.
Bids for this work will be opened on September 26, 2002.
This addendum is being issued to revise the Notice to Contractors and Special Provisions and the Federal Minimum Wages with Modification Number 12 dated 9-6-02. A copy of the modified wage rates are available for the contractor's use on the Internet Site:
http://www.dot.ca.gov/hq/esc/oe/weekly_ads/addendum_page.html
In the Special Provisions, Section 10-1.285, "EROSION CONTROL (TYPE D)," is added as attached.
To Proposal and Contract book holders:
Indicate receipt of this addendum by filling in the number of this addendum in the space provided on the signature page of the proposal.

Submit bids in the Proposal and Contract book you now possess. Holders who have already mailed their book will be contacted to arrange for the return of their book.

Inform subcontractors and suppliers as necessary.
This office is sending this addendum by confirmed facsimile to all book holders to ensure that each receives it.
If you are not a Proposal and Contract book holder, but request a book to bid on this project, you must comply with the requirements of this letter before submitting your bid.
Sincerely,
ORIGINAL SIGNED BY
REBECCA D. HARNAGEL, Chief

Office of Plans, Specifications & Estimates

Office Engineer
Attachment

10 1.285  EROSION CONTROL (TYPE D)


Erosion control (Type D) shall conform to the provisions in Section 20 3, "Erosion Control," of the Standard Specifications and these special provisions and shall consist of applying erosion control materials to embankment and excavation slopes and other areas disturbed by construction activities.

If the slope on which the erosion control is to be placed is finished during the rainy season as specified in "Water Pollution Control" of these special provisions, the erosion control shall be applied immediately to the slope.

Prior to installing erosion control materials, soil surface preparation shall conform to the provisions in Section 19 2.05, "Slopes," of the Standard Specifications, except that rills and gullies exceeding 50 mm in depth or width shall be leveled. Vegetative growth, temporary erosion control materials, and other debris shall be removed from areas to receive erosion control.

MATERIALS


Materials shall conform to the provisions in Section 20 2, "Materials," of the Standard Specifications and these special provisions.

Seed


Seed shall conform to the provisions in Section 20 2.10, "Seed," of the Standard Specifications. Individual seed species shall be measured and mixed in the presence of the Engineer.

Seed shall be delivered to the project site in unopened separate containers with the seed tag attached. Containers without a seed tag attached will not be accepted.

A sample of approximately 30 g of seed will be taken from each seed container by the Engineer.

Legume Seed


Legume seed shall be pellet-inoculated or industrial-inoculated and shall conform to the following:
A. Inoculated seed shall be inoculated in conformance with the provisions in Section 20 2.10, "Seed," of the Standard Specifications.

B. Inoculated seed shall have a calcium carbonate coating.

C. Industrial-inoculated seed shall be inoculated with Rhizobia and coated using an industrial process by a manufacturer whose principal business is seed coating and seed inoculation.

D. Industrial-inoculated seed shall be sown within 180 calendar days after inoculation.

E. Legume seed shall consist of the following:
LEGUME SEED


Botanical Name

(Common Name)



Percent Germination (Minimum)

Kilograms Pure Live Seed Per Hectare

(Slope Measurement)



Lupinus succulentus

(Arroyo Lupine)



50

15

CONTRACT NO. 11-079104

ADDED PER ADDENDUM NO. 1 DATED SEPTEMBER 10, 2002

Non-Legume Seed


Non-legume seed shall consist of the following:
NON LEGUME SEED

Botanical Name

(Common Name)



Percent Germination

(Minimum)



Kilograms Pure Live Seed Per Hectare

(Slope Measurement)



Eschscholzia californica

(California Poppy)




60

5

Gilia capitata

(Globe Gilia)




40

4

Penstemon spectabilis

(Showy Penstemon)




40

3

Vulpia microstachys

(Small Fescue)




30

5

Viquiera laciniata

(San Diego Sunflower)




30

2



Commercial Fertilizer


Commercial fertilizer shall conform to the provisions in Section 20 2.02, "Commercial Fertilizer," of the Standard Specifications and shall have a guaranteed chemical analysis of 6 percent nitrogen, 20 percent phosphoric acid and 20 percent water soluble potash.

Straw


Straw shall conform to the provisions in Section 20 2.06, "Straw," of the Standard Specifications and these special provisions.

Straw shall be derived from rice.



Compost


Compost shall be derived from green material consisting of chipped, shredded or ground vegetation or clean processed recycled wood products or a Class A, exceptional quality biosolids composts, as required by the United States Environmental Protection Agency (EPA), 40 CFR, Part 503c regulations or a combination of green material and biosolids compost. The compost shall be processed or completed to reduce weed seeds, pathogens and deleterious material, and shall not contain paint, petroleum products, herbicides, fungicides or other chemical residues that would be harmful to plant or animal life. Other deleterious material, plastic, glass, metal or rocks shall not exceed 0.1 percent by weight or volume. A minimum internal temperature of 57˚C shall be maintained for at least 15 continuous days during the composting process. The compost shall be thoroughly turned a minimum of 5 times during the composting process and shall go through a minimum 90 day curing period after the 15 day thermophilic compost process has been completed. Compost shall be screened through a maximum 9.5 mm screen. The moisture content of the compost shall not exceed 35 percent. Compost products with a higher moisture content may be used provided the weight of the compost is increased to equal the compost with a moisture content of 35 percent. Moist samples of compost on an as received basis shall be dried in an oven at a temperature between 105°C and 115°C until a constant dry weight of the sample is achieved. The percentage of moisture will be determined by dividing the dry weight of the sample by the moist weight of the sample and then multiplying by 100. Compost will be tested for maturity and stability with a Solvita test kit. The compost shall measure a minimum of 6 on the maturity and stability scale.

Stabilizing Emulsion


Stabilizing emulsion shall conform to the provisions in Section 20 2.11, "Stabilizing Emulsion," of the Standard Specifications and these special provisions.

Stabilizing emulsion shall be in a dry powder form, may be reemulsifiable, and shall be a processed organic adhesive used as a soil tackifier.

CONTRACT NO. 11-079104

ADDED PER ADDENDUM NO. 1 DATED SEPTEMBER 10, 2002



APPLICATION


Erosion control materials shall be applied in separate applications in the following sequence:
A. The following mixture in the proportions indicated shall be applied with hydro-seeding equipment within 60 minutes after the seed has been added to the mixture:


Material


Kilograms Per Hectare

(Slope Measurement)



Legume Seed

15

Non-Legume Seed

19

Fiber

800

Compost

800

B. Straw shall be applied at the rate of 1.5 tonnes per hectare based on slope measurements. Incorporation of straw will not be required. Straw shall be distributed evenly without clumping or piling.

C. The following mixture in the proportions indicated shall be applied with hydro-seeding equipment:


Material


Kilograms Per Hectare

(Slope Measurement)



Fiber

700

Compost

800

Commercial Fertilizer

25

Stabilizing Emulsion (Solids)

150

The ratio of total water to total stabilizing emulsion in the mixture shall be as recommended by the manufacturer.

Once straw work is started in an area, stabilizing emulsion applications shall be completed in that area on the same working day.

The proportions of erosion control materials may be changed by the Engineer to meet field conditions.



MEASUREMENT AND PAYMENT


Compost (erosion control) will be measured by the kilogram or tonne, whichever unit is designated in the Engineer's Estimate The weight will be as determined by the Engineer from marked mass and sack count or from scale weighings.

The contract price paid per kilogram or tonne for compost (erosion control) shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals, and for doing all the work involved in applying compost for erosion control, complete in place, as shown on the plans, as specified in the Standard Specifications and these special provisions, and as directed by the Engineer.

CONTRACT NO. 11-079104

ADDED PER ADDENDUM NO. 1 DATED SEPTEMBER 10, 2002





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