Special Project Specifications.docx

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Trail Maintenance, Cherokee National Forest
Solicitation number
AG-4756-S-10-0003
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Supplemental Specifications

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Supplemental Specifications to

Region 6 Trail Specifications (7/05)

905 Control of Material Add the following:

Rock Source – Commercial source shall be approved by the CO. Submit rock samples for CO’s approval.

906.02 Determination of Quantities

Unless otherwise specified, measure when the work is in place, complete, and accepted.

Section 906 Measurement and Payment

906.06 Scope of Payment. Payment for all contract work is provided, either directly or indirectly, under the pay items shown in the bid schedule.

(a) Direct payment. Payment is provided directly under a pay item shown in the bid schedule when one of the following applies:

(1) The work is measured in the Measurement Subsection of the Section ordering the work, and the bid schedule contains a pay item for the work from the Section ordering the work.

(2) The Measurement Subsection, of the Section ordering the work, references another Section for measuring the work and the bid schedule contains a pay item for the work from the referenced Section.

(b) Indirect payment. Work for which direct payment is not provided is a subsidiary obligation of the Contractor. Payment for such work is indirectly included under other pay items shown in the bid schedule. This includes instances when the Section ordering the work references another Section for performing the work and the work is not referenced in the Measurement Subsection of the Section ordering the work.

Compensation provided by the pay items included in the contract bid schedule is full payment for performing all contract work in a complete and acceptable manner. All risk, loss, damage, or expense arising out of the nature or prosecution of the work is included in the compensation provided by the contract pay items.

Work measured and paid for under one pay item will not be paid for under any other pay item.

Limit pay quantities to the quantities staked, ordered, or otherwise authorized before performing the work. Payment will be made for the actual quantities of work performed and accepted or material furnished according to the contract. No payment will be made for work performed in excess of that staked, ordered, or otherwise authorized.

915.01 Work.

At the end of the sentence add:

trees and logs.

915.08 Drainage.

In the first sentence, after “drainage”, add:

in accordance with Section 991

In the second sentence, change 923 to 991.07

915.11 Switchbacks.

Change 914 to 990.

915.12 Waterbars.

Change 922 to 991.

915.13 Turnpikes.

Change 913 to 989.

915.15 Reshaping and Finishing Trailbed and Backslopes

Add the following section:

915.15A Road to Trail Conversion This work consists of restoring cross drainage and relocating trail tread within the existing road bed as shown on drawing 915-3. Includes clearing, removing slough and berm, borrow, filling ruts and troughs, reshaping backslopes, excavation, reshaping trail tread, restoring drainage and other trail structures, constructing check dams, and removing protruding rocks, roots, stumps, slough, and berms.

933.08 Pinned Stairway

In the second sentence, change ¾” to 1”

941.01 Work

Add:

This work includes backfilling structures with crushed aggregate when suitable on-site material is
not available. Backfill shall be any of the following gradations as directed by the CO:
Grade D (crusher run)
Block material
Chat
Grade 10
Grade 57
Grade 3

Add the following Section:

Section 917 – Trail Construction

Description

917.01 Work. Work consists of constructing trail as marked on the ground in accordance with Sections 911, 912, and 914.

Materials

917.02 Requirements. Use materials specified in Sections 911, 912 and 914.

Construction

Construct trail as shown on drawings for Sections 911, 912 and 914.

Add the following Section:

Section 937 - Rock Masonry Construction

Description

937.01 Work. Work consists of furnishing and constructing rock masonry structures including stone masonry walkways, rock culverts, rock retaining walls, and stone veneer. Work shall include excavation and backfill.

Materials

937.02 Requirements. Use materials meeting the requirements of the following subsections:

905 – Control of Materials

Masonry cement shall comply with ASTM C-91 and ASTM C-270, Type N, S, or M.

Construction

Do not mix brands or types.

All masonry work shall be uniform and built to dimensions, and pattern as indicated on the drawings.

Joints shall be 3/8" min to 1 ¼” max width, tooled concave.

All rocks shall be "buttered" on all contact surfaces with mortar.

1. Tight, full mortar joints shall be placed between concrete and masonry.
2. There shall be full mortar coverage of the rock faces in both horizontal and vertical joints.

All exposed wall surfaces shall be kept clean and free of mortar or concrete splotches.

1. Walls and all joints shall be pointed and masonry cleaned.
2. Completed walls shall be cleaned with a detergent cleaner containing no muriatic acid.

No placing of masonry shall be done in freezing weather.

In hot or dry weather, the masonry shall be protected from the sun and shall be kept wet for a period of three days after completion.

Masonry Cement - Shall be delivered in unbroken bags and stored above ground under cover.

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