CARE_A002.pdf

E-6 PRA-CARE 10(1)

SCENIC DRIVE

PMIS NO. 57955

Materials containing petroleum-based solvents such as cutback asphalts and traffic paints may be restricted from use by local laws or ordinances in certain geographic areas. Upon presenting proof of such restrictions, alternate materials considered acceptable to the CO may be substituted for the materials specified in the contract.

105.02 Material Sources

(b) Contractor-located sources. Add the following to the end of the first paragraph:

For Contractor-located, non-commercial sources, secure environmental clearances according to Subsection 107.10.

105.04 Storing and Handling Material. Add the following after the third sentence of the second paragraph:

For Contractor-located, non-commercial staging, storing, and material handling areas, secure environmental clearances according to Subsection 107.10.

All fill, rock, and additional topsoil will be obtained from this project if possible; and if not possible, then weed-free fill, rock, or additional topsoil would be obtained from Contractor-located sources outside of the Park. NPS personnel will certify that the source is weed-free.

Add the following:

The Contractor may use the Cal Pendleton Field at Station 187+65 Rt. and at the Capitol Gorge Parking Area at station 520+00 Rt. for staging areas, storage of materials, and stockpiles.

The Contractor will need to construct an access road to the Cal Pendleton Field site from the Bone Yard Access Road to gain access to the staging area. Contractor to remove the access road and restore the areas used for staging back to original condition, except for seeding, after construction is completed. The Park will reseed the area upon completion of the project.

The Contractor may use the Capitol Gorge parking area for staging areas, storage of materials, and stockpiles prior to completing the required work at the Parking Area. Once the Parking Area has been paved per the plans and details, the area will no longer be allowed as a staging, storage, or stockpiling area.

Vehicle and equipment parking will be limited to within the construction limits or approved staging areas.

Staging areas outside the Park are subject to approval by the CO and will be surveyed for noxious weeds and treated appropriately prior to use.

Water for project specific water requirements may be obtained from the Fremont River near the

Gifford Barn from April 1 through November 30. Use a fish screen on all pumps. Contractor must keep a log documenting water pumped from the river. Comply with all permits and State and local regulations. Coordinate with the Park regarding this use.

Revised 11/01/10 Amendment A002

E-102 PRA-CARE 10(1)

SCENIC DRIVE

PMIS NO. 57955

To ensure proper curing of the tackifier, it shall be applied when the daytime temperatures do not fall below freezing. It should not be applied to saturated wet soil, during rain, high winds, or when the temperature is less than 50 degrees F.

713.13 Erosion Control Bales, Wattles, Logs, and Rolls. Delete the subsection and substitute the following:

713.13 Sediment Control Logs. (Slope interruption Device)

1. Excelsior fiber logs or rolls. Conform to the following:

Provide excelsior logs that consist of drainage filter made of curled aspen wood excelsior and rolled into a cylindrical shape with a consistent width of fibers evenly distributed throughout the cylinder. The logs will be a minimum of 225mm 12” and a maximum of 300mm in diameter. They shall contain a minimum of 1.36 kilograms 3 lbs of wood fiber per 300mm 12 “ encased in seamless photodegradable tubular netting. All material in the log shall be certified weed free. Submit a sample log for approval by the CO two weeks prior to the installation. The CO will approve the log in consultation with a National Park Service representative.

2. Installation.

Sediment logs shall be placed in a shallow trench the depth of which will be no more than 1/3 the diameter of the log. They shall be secured every two linear feet across the length of the log with a 1 inch diameter wooden stake driven into the ground 24 inches and shall remain in place after construction is completed.

Install uniformly over the entire area at approximately 10-15 foot intervals in a staggered overlapping pattern so that an unnatural pattern cannot be detected and the slopes are adequately protected from sheet and rill erosion.

Section 714. – GEOTEXTILE AND GEOCOMPOSITE DRAIN MATERIAL

714.01 Geotextile. Add the following:

For rockery construction furnish Type I-B non-woven geotextile.

714.02 Geocomposite Drains.

(b) Geocomposite sheet drains. Add the following:

For MSE wall construction, furnish prefabricated sheet drain with a core or net encapsulated in a Type I-D (Subsection 714.01) non-woven geotextile. Provide a sheet drain capable of draining from both sides of the sheet and a minimum flow rate of 5 gallons per minute per foot of width when tested according to ASTM D 4716. Perform the test under the following test conditions:

Revised 11/01/10 Amendment A002

Untitled

CENTRAL FEDERAL LANDS HIGHWAY DIVISION

12300 WEST DAKOTA AVENU, SUITE 360

LAKEWOOD, COLORADO 80228

ATTENTION: LORI KLIETHERMES

1:

Solicitation page E-6 revised to include language regarding availability of water.

Solicitation page E-102 revised to reflect correct size of required sediment logs.

Plan Page E9 revised to show correct size of required sediment logs.

Plan Page T6 revised to show correct dimensions for Underdrain.

Refer to the Q&A section of CFLHD's website (http://www.cflhd.gov/contracting/construction/advertisedprojects.cfm) under the project name for further information.

*FAILURE TO ACKNOWLEDGE THIS AMENDMENT IN BLOCK 19 OF THE SF 1442 BY THE DESIGNATED DATE AND HOUR SPECIFIED IN THE SOLICITATION MAY RESULT IN REJECTION OF YOUR BID (REFER TO SF-1442, PAGE A-2, OF THE SOLICITATION)