Amendment_4_attachment_01.15.10.docx

AG-82B1-S-10-0040

Amendment 4 attachment for changes to Appendix D-2 (SPS) 109 - Measurement and Payment 109.02_nat_05_11_2004

109.02 Measurement Terms and Definitions.

Add the following definition:

(p) Thousand Board Feet (Mbf). 1,000 board feet based on nominal widths, thickness, and extreme usable length of each piece of lumber or timber actually incorporated in the job. For glued laminated timber, 1,000 board feet based on actual width, thickness, and length of each piece actually incorporated in the job.

109.03_nat_05_11_2004 109 Deletions Delete the following entire subsections:

109.06 Pricing of Adjustments.

109.07 Eliminated Work.

109.08 Progress Payments.

109.09 Final Payment.

Add the following Subsection:

109.10 Methods of Measurement

One of the following methods of measurement for determining final payment is DESIGNATED IN THE SCHEDULE OF ITEMS for each PAY ITEM:

(a) Designed Quantities (DQ). These quantities denote the final number of units to be paid for under the terms of the contract. They are based upon the original design data available prior to advertising the project. Original design data include the preliminary survey information, design assumptions, calculations, drawings, and the presentation in the contract. Changes in the number of units DESIGNATED IN THE SCHEDULE OF ITEMS may be authorized under any of the following conditions:

(1) Changes in the work authorized by the CO.

(2) A determination by the CO that errors exist in the original design that cause a PAY ITEM quantity to change by 15 percent or more.

(3) A written request submitted to the CO showing evidence of errors in the original design that cause the quantity of a PAY ITEM to change by 15 percent or more. The evidence must be verifiable and consist of calculations, drawings, or other data that show how the designed quantity is in error.

(b) Stake Quantities (SQ). These quantities are determined from staked measurements prior to construction.

(c) Actual Quantities (AQ). These quantities are determined from measurements of completed work.

(d) Vehicle Quantities (VQ). These quantities are measured or weighed in hauling vehicles.

(e) Lump Sum Quantities (LSQ). These quantities denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job.

152 - Contractor Survey and Staking 152.00_nat_05_12_2004 Description

152.01 (a) Personnel. Delete this subparagraph and substitute the following:

Conduct construction staking under the direction of a licensed professional land surveyor or professional engineer who is closely associated and familiar with the project.

At the conclusion of each road segment, have the registered professional affix the state authorized seal and sign all field books and drawings and attest in writing to the satisfactory completion of the project.

152.01(c) Material.

Add the following:

Use required stake dimensions and materials. Pre-paint the top 2 inches of all stakes and lath, or mark them with plastic flagging. Use approved colors for paint or flagging. Mark all stakes with a stake pencil that leaves a legible imprint, or with waterproof ink.

Do not use aerosol spray paints.

Use moisture-resistant paper for survey notes. Keep notes in books with covers that will protect the contents and retain the pages in numerical sequence.

Construction Requirements

152.02 General.

Add the following:

A preliminary survey line has been established on the ground. The project location line is established by offsets from this preliminary line.

Theoretical construction staking notes, including the P-Station location, equivalent L-Station, and projected location of catch points will be furnished by the Government.

Delete second sentence in second paragraph and replace with the following:

Reestablish missing reference, control lines, or stakes as necessary to control subsequent construction staking operations

152.03 Survey and Staking Requirements.

(b) Roadway cross-sections.

Replace the first two sentences with the following:

Take roadway cross-sections normal to centerline. When the centerline curve radius is less than or equal to 200 feet, take cross-sections at a maximum centerline spacing of 25 feet. When the centerline curve radius is greater that 200 feet take cross-sections at a maximum centerline spacing of 80 feet.

c) Slope Stakes & References:

Replace section with the following:

Slope stakes and references. When required, locate slope stakes on designated portions of the road. Locate the slope stake catch points and use them to establish clearing limits and slope stake references.

Mark slope stakes with the station, the amount of cut or fill, the horizontal distance to centerline, and the slope ratios.

Place slope reference stakes at least 10 feet outside the clearing limit and mark with the offset distance to the slope stake. Place sight stakes when required.

Prior to clearing and grubbing operations, move the slope stake outside the clearing limit to the slope reference stake. After clearing and grubbing and before excavation, reset the slope stakes in their original position.

Use the designated method to establish the slope stake catchpoint.

· Method I—Computed Method. Use the template information shown in the plans or other Government-provided data to calculate the actual location of the catchpoint. The slope stake “catchpoint distance” provided may be used as a trial location to initiate slope staking. Recatch slope stakes on any section that does not match the staking report within the tolerances established in Table 152-2.

· Method II—Catchpoint Measurement Method. Determine the location of slope stake catchpoints by measuring the catchpoint distances shown in the plans or other Government-provided data.

(d) Clearing and grubbing limits.

Add the following:

Establish clearing limits on each side of the location line by measuring the required horizontal or slope distances shown in the stake notes. Mark the clearing limits with flagging or tags on trees to be left standing, or on lath. Make markings intervisible, and no more than 90 feet apart.

After establishing clearing limits, move the location line stake outside the clearing limits for station identification purposes, and mark it with horizontal distance to location line

(e) Centerline reestablishment.

Replace with the following:

Reestablish missing P-line points as necessary to control subsequent construction staking operations to the precision designated in the bid schedule or shown on the Plans..

(g) Culverts.

Replace subsection with the following:

Stake culverts to fit field conditions. The location of culverts may differ from the plans. Perform the following:

When required, stake headwall for culverts by setting a hub with a guard stake on each side of the culvert on line with the face of the headwall. Perform this work after clearing is completed.

(l) Miscellaneous Survey and Staking.

Add the following:

(11) Cattleguards

(12) Drain Dips

(13) Erosion Control Measures

Add the following to this subsection:

(m) Establishing L-Line. Establish the position of the L-Line by measuring right or left from the preliminary survey line (P-line) the horizontal distance shown in the staking notes furnished by the Government.

Set additional intermediate centerline stakes at locations shown on the plans and listed in the staking notes, as needed to establish control for beginning and end of extra widening and turnout tapers; for crest and sag of drainage dips, for culverts, and for turnarounds.

Drive stakes labeled with the L-line station to denote actual centerline point.

Replace Table 152-1 with the following two tables:

Table 152-1 Tolerances for reestablishing P-line, traverse, and elevations.

Precision Class

Vertical Closureb (±)

A (Bridges)

10 second rejection limit

0.02ft/1000ftc

20 second rejection limit

0.02ft/1000ftc

1 minute rejection limit

a. Accuracy of offset measurement.

b. Determine vertical closures at intervals not to exceed 2000 ft as measured along centerline.

c. Use greater value.

Table 152-2 Cross section and slope stake tolerances.

Horizontal and vertical accuracy for slope stake, slope stake references, and clearing limits. In feet or percentage of horizontal distance measured from centerline or reference stake, whichever is greater.

156 - Public Traffic 156.03_nat_11_05_2004

156.03 Accommodating Traffic During Work.

Delete the first paragraph and replace with the following:

Accommodate traffic according to the requirements set forth below, MUTCD, and Section 635. Submit a traffic control plan for acceptance at least 30 days before intended use.

Delete the following from the last paragraph:

…..according to Subsection 106.07(b)

Add the following:

Keep existing roads open to all traffic during road construction, and maintain them in a condition that will safely and adequately accommodate traffic.

156.08 Traffic and Safety Supervisor.

Delete this section in its entirety.

157 - Soil Erosion Control 157.02_01_08_23_2004

157.02 Materials

Add the following:

Provide bales, wattles, logs and rolls from a certified noxious weed free source.

157.03_0510_11_10_2004

Construction Requirements

157.03 General

Delete the first two paragraphs and add the following:

"This work includes submitting an Erosion Control Plan detailing permanent and temporary control measures to minimize erosion and sedimentation during and after construction according to the contract specifications, contract permits, Section 107, and this Section. Contract permits amend the requirements of this Section. Do not modify the type, size, or location of any control or practice without approval. Submit the erosion control plan proposal at least 7 days before operations begin to the Contracting Officer for approval.

The erosion control plan reflects special concerns and measures necessary to protect resources and government improvements. The Erosion Control Plan shall, at a minimum:

1. Describe the construction activities and sequence of implementation relating to specific erosion control measures.

2. Describe the location and type of permanent controls to be implemented during construction.

7. Describe what monitoring will take place.”

Add to the third paragraph:

“Upon completion of construction at the site, all temporary dewatering materials and equipment are to be removed from Government property."

157.04 Controls and Limitations on Work.

Add the following to the second paragraph:

“Temporary erosion control measures will be in place at the end of each days operation if greater than 30 percent chance of rainfall is predicated. Earthwork operations may be temporarily suspended if significant rainfall is forecasted.”

201 – Clearing and Grubbing

201.01_nat_05_12_2004

201.01 Description

Replace with the following

This work consists of clearing and grubbing within clearing limits and other designated areas.

201.03_nat_05_12_2004

201.02 Delete:

Delete Tree wound dressing material reference.

201.03 General.

Delete the last sentence.

201.04_nat_05_12_2004

201.04 Clearing. (c)

Replace with the following:

(c) In areas outside the excavation, embankment, and slope rounding limits, cut stumps to within 12 inches or one-third of the stump diameter of the ground, whichever is higher, measured on the side adjacent to the highest ground. For timber sales, follow the requirements of A(A(T))6.

201.04 Clearing.

Delete subsection (d) and add the following:

(d) Do not cut vegetation less than 3 feet tall and less than 3 inches in diameter, that is within the clearing limits but beyond the roadway and not in a decking area, and that does not interfere with sight distance along the road.

(e) Remove brush from log decks. Deck logs so that logs are piled parallel to one another; can be removed by standard log loading equipment; will not damage standing trees; will not interfere with drainage, and will not roll. Keep logs in log decks free of brush and soil.

(f) Trim tree branches that extend over the road surface and shoulders to attain a clear height of 15 feet. Trim tree limbs as near flush with the trunk as practicable.

(g) Fall hazard trees or unstable live trees that are tall enough to reach the roadbed, when marked, before falling timber in the immediate clearing vicinity.

201.06_nat_05_12_2004

201.06 Disposal.

Delete the first sentence of this subsection and substitute the following:

Dispose of merchantable timber designated for removal according to the provisions of the timber sale contract.