FP-03 Specifications Cabin_Arrowhead Creeks.pdf

CIM-0903-0909-8EW-222-0909-02

Aquatic Organism Passage Structures

Superior National Forest

Specifications

Table of Contents

Table of Contents

Preface

101 - Terms, Format, and Definitions

101.01 Meaning of Terms

101.03 Abbreviations

101.04 Definitions

102 - Bid, Award, and Execution of Contract

102 Bid, Award, and Execution of Contract

103 - Scope of Work

Deletions

104 - Control of Work

Deletions

104.06 Use of Roads by Contractor

105 - Control of Material

105.02 Material Sources

105.02(a) Government-provided sources

105.05 Use of Material Found in the Work

106 - Acceptance of Work

106.07 Delete

107 - Legal Relations and Responsibility to the Public

107.05 Responsibility for Damage Claims

107.06 Contractor’s Responsibility for Work

107.09 Legal Relationship of the Parties

107.10 Environmental Protection

108 - Prosecution and Progress

108 Delete

109 - Measurement and Payment

109 Deletions

109.02 Measurement Terms and Definitions

153 - Contractor Quality Control

153.02 Contractor Quality Control Plan

153.04 Records

154 - Contractor Sampling and Testing

155 - Schedules for Construction Contracts

155 Delete

156 - Public Traffic

157 - Soil Erosion Control

157.03 General

203 - Removal of Structures and Obstructions

203.01 Description

203.05 Disposing of Material

208 - Structure Excavation and Backfill for Selected Major Structures

208.04 General

209 - Structure Excavation and Backfill

209.10 Backfill

209.11 Compacting

251 - Riprap

251.03 General

308 – Minor Crushed Aggregate

554 - Reinforcing Steel

601 - Minor Concrete

601.01

Table 601-2. Sampling and Testing Requirements

603 - Structural Plate Structures

603.03 General

603.04 Erecting

625 - Turf Establishment

625.03 General

625.04 Preparing Seedbed

625.05 Watering

625.06 Fertilizing

625.07 Seeding

625.08 Mulching

625.09 Protecting and Caring for Seeded Areas

625.11 Measurement

635 - Temporary Traffic Control

635.03 General

701 - Cement

701.02 Masonry and Mortar Cement

704 - Soil

704.02 Bedding Material

705 - Rock

705.07 Streambed Simulation Rock

705.08 Channel Rock

709 - Reinforcing Steel and Wire Rope

713 - Roadside Improvement Material

713.05 Mulch

717 - Structural Metal

717.01 Structural Steel

Preface

Preface_wo_03_15_2004_m

Delete all but the first paragraph and add the following:

The Forest Service, US Department of Agriculture has adopted FP-03 for construction of National Forest System Roads.

101 - Terms, Format, and Definitions

101.00_nat_us_07_25_2005

101.01_nat_us_01_22_2009

101.01 Meaning of Terms

Delete all references to the TAR (Transportation Acquisition Regulations) in the specifications.

101.03_nat_us_06_16_2006

101.03 Abbreviations.

Add the following to (a) Acronyms:

AFPA

MSHA

NIST

NESC

WCLIB

American Forest and Paper Association Mine Safety and Health Administration National Institute of Standards and Technology National Electrical Safety Code West Coast Lumber Inspection Bureau

Add the following to (b) SI symbols:

mp Milepost ppm Part Per Million

101.04_nat_us_03_29_2007

101.04 Definitions.

Delete the following definitions and substitute the following:

Bid Schedule--The Schedule of Items.

Bridge--No definition.

Contractor--The individual or legal entity contracting with the Government for performance of prescribed work. In a timber sale contract, the contractor is the “purchaser”.

Culvert--No definition.

Right-of-Way--A general term denoting (1) the privilege to pass over land in some particular line (including easement, lease, permit, or license to occupy, use, or traverse public or private lands), or (2) Real property necessary for the project, including roadway, buffer areas, access, and drainage areas.

Add the following:

Adjustment in Contract Price--“Equitable adjustment,” as used in the Federal Acquisition Regulations, or “construction cost adjustment,” as used in the Timber Sale Contract, as applicable.

Change--“Change” means “change order” as used in the Federal Acquisition Regulations, or “design change” as used in the Timber Sale Contract.

Design Quantity--“Design quantity” is a Forest Service method of measurement from the FS-96 Forest Service Specifications for the Construction of Roads and Bridges. Under these FP specifications this term is replaced by the term “Contract Quantities”.

Forest Service--The United States of America, acting through the Forest Service, U.S.

Department of Agriculture.

Neat Line--A line defining the proposed or specified limits of an excavation or structure.

Pioneer Road--Temporary construction access built along the route of the project.

Purchaser--The individual, partnership, joint venture, or corporation contracting with the Government under the terms of a Timber Sale Contract and acting independently or through agents, employees, or subcontractors.

Protected Streamcourse--A drainage shown on the plans or timber sale area map that requires designated mitigation measures.

Road Order--An order affecting and controlling traffic on roads under Forest Service jurisdiction. Road Orders are issued by a designated Forest Officer under the authorities of 36 CFR, part 260.

Schedule of Items--A schedule in the contract that contains a listing and description of construction items, quantities, units of measure, unit price, and amount.

Utilization Standards--The minimum size and percent soundness of trees described in the specifications to determine merchantable timber.

102 - Bid, Award, and Execution of Contract

102.00_nat_us_02_16_2005

102 Bid, Award, and Execution of Contract

Delete Section 102 in its entirety.

103 - Scope of Work

103.00_nat_us_02_16_2005

Deletions

Delete all but subsection 103.01 Intent of Contract.

104 - Control of Work

104.00_nat_us_06_16_2006

Deletions

Delete Sections 104.01, 104.02, and 104.04.

104.06_nat_us_02_17_2005

Add the following subsection:

104.06 Use of Roads by Contractor

The Contractor is authorized to use roads under the jurisdiction of the Forest Service for all activities necessary to complete this contract, subject to the limitations and authorizations designated in the Road Order(s) or described in the contract, when such use will not damage the roads or national forest resources, and when traffic can be accommodated safely.

105 - Control of Material

105.02_nat_us_01_18_2007

105.02 Material Sources.

105.02(a) Government-provided sources.

Comply with the requirements of 30 CFR 56, subparts B and H. Use all suitable material for aggregate regardless of size unless otherwise designated. When required, re-establish vegetation in disturbed areas according to section 625.

105.05_nat_us_05_12_2004

105.05 Use of Material Found in the Work.

Delete 105.05 (a) and (b) and the last sentence of the second paragraph and substitute the following:

Materials produced or processed from Government lands in excess of the quantities required for performance of this contract are the property of the Government. The Government is not obligated to make reimbursement for the cost of producing these materials.

106 - Acceptance of Work

106.07_nat_us_05_11_2004

106.07 Delete

Delete subsection 106.07.

107 - Legal Relations and Responsibility to the Public

107.05_nat_us_05_11_2004

107.05 Responsibility for Damage Claims.

Delete the entire subsection.

107.06_nat_us_06_16_2006

107.06 Contractor’s Responsibility for Work.

Delete the following from the first paragraph.

“except as provided in Subsection 106.07”.

107.09_nat_us_06_16_2006

107.09 Legal Relationship of the Parties.

Delete the entire subsection.

107.10_nat_us_06_16_2006

107.10 Environmental Protection.

Add the following:

Design and locate equipment repair shops, stationary refueling sites, or other facilities to minimize the potential and impacts of hazardous material spills on Government land.

Before beginning any work, submit a Hazardous Spill Plan. List actions to be taken in the event of a spill. Incorporate preventive measures to be taken, such as the location of mobile refueling facilities, storage and handling of hazardous materials, and similar information. Immediately notify the CO of all hazardous material spills. Provide a written narrative report form no later than 24 hours after the initial report and include the following:

Description of the item spilled (including identity, quantity, manifest number, and other identifying information).

Whether amount spilled is EPA or state reportable, and if so whether it was reported, and to whom.

Exact time and location of spill including a description of the area involved.

Containment procedures.

Summary of any communications the Contractor had with news media, Federal, state and local regulatory agencies and officials, or Forest Service officials.

Description of clean-up procedures employed or to be employed at the site including final disposition and disposal location of spill residue.

When available provide copies of all spill related clean up and closure documentation and correspondence from regulatory agencies.

The Contractor is solely responsible for all spills or leaks that occur during the performance of this contract. Clean up spills or leaks to the satisfaction of the CO and in a manner that complies with Federal, state, and local laws and regulations.

108 - Prosecution and Progress

108.00_nat_us_02_16_2005

108 Delete.

Delete Section 108 in its entirety.

109 - Measurement and Payment

109.00_nat_us_02_17_2005

109 Deletions

Delete the following entire subsections:

109.06 Pricing of Adjustments.

109.07 Eliminated Work.

109.08 Progress Payments.

109.09 Final Payment.

109.02_nat_us_06_16_2006

109.02 Measurement Terms and Definitions.

(b) Contract quantity.

Add the following:

Contract quantities will be adjusted only when there are errors in the original design of 15% or more.

Change the following:

“(b) Cubic yard” to “(c) Cubic yard”.

153 - Contractor Quality Control

153.02_nat_us_02_17_2005

153.02 Contractor Quality Control Plan.

Add the following:

Submit written proposals for approval of alternate AASHTO or State approved test methods.

Alternate methods may be allowed based on documented equivalence to the specified method.

153.04_nat_us_10_24_2007

153.04 Records.

Delete all but the first sentence

154 - Contractor Sampling and Testing

154.01_nat_us_05_24_2005

154.01 Description

Delete the last sentence of the first paragraph.

155 - Schedules for Construction Contracts

155.00_nat_us_05_11_2004

155 Delete.

Delete Section 155 in its entirety.

156 - Public Traffic

156.00_nat_us_04_17_2007

Delete Section 156 in its entirety and replace with the following:

Description

156.01 This work consists of controlling and protecting public traffic adjacent to and within the project.

Material

156.02 Conform to the MUTCD and the following Sections and Subsections:

Construction sign panels 633

Retro-reflective sheeting 718.01

Temporary concrete barrier 618

Temporary plastic fence 710.11

Temporary traffic control devices 718.22

156.03 General. The road may be closed at the crossing for a period up to three consecutive weeks to allow construction. Notice of closure shall be made at the major intersections on each end of road at least two weeks prior to any closure.

Perform no work that interferes or conflicts with traffic or existing access to the roadway surface until a traffic control plan has been approved. Post construction signs and traffic control devices in conformance with MUTCD. All required signs will be in place and approved prior to beginning work on project.

If the Contractor agrees in writing to allow public traffic to use a new road being constructed prior to completion, it will be considered an existing road for traffic control purposes.

156.04 Temporary Traffic Control. Install and maintain temporary traffic control devices adjacent to and within the project as required by the approved traffic control plan and the MUTCD. Install and maintain traffic control devices as follows:

(a) Furnish and install traffic control devices before the start of construction operations.

(b) All detours outside of clearing limits will be approved in writing by the Contracting

Officer as part of the traffic control plan.

(c) Install only those traffic control devices needed for each stage or phase.

(d) Relocate temporary traffic control devices as necessary.

(e) Remove devices that no longer apply to the existing conditions.

(f) Immediately replace any device that is lost, stolen, destroyed, or inoperative.

(g) Keep temporary traffic control devices clean.

(h) Remove all temporary traffic control devices upon contract completion or when approved.

(i) When required, use flaggers certified by the American Traffic Safety Services

Association, the National Safety Council, the International Municipal Signal Association, a state agency, or other acceptable organization. Perform the work described under MUTCD Part 6. Use type III, VII, VIII, or IX retroreflective sheeting on flagger paddles. Do not use flags. Flaggers must wear high visibility safety apparel as required by MUTCD 6E.02.

156.05 Acceptance. Public traffic work will be evaluated under Subsection 106.02.

Measurement and Payment

156.06 Do not measure Public Traffic for payment. Compensation is made as an indirect payment.

157 - Soil Erosion Control

157.03_nat_us_02_24_2005

157.03 General

Delete the entire subsection and replace with the following:

Prior to the start of construction, submit a written plan that provides permanent and temporary erosion control measures to minimize erosion and sedimentation during and after construction.

Do not begin work until the necessary controls for that particular phase of work have been implemented. Do not modify the type, size, or location of any control. An alternate erosion control plan with all necessary permits may be submitted 30 days before intended use.

Incorporate all permanent erosion control features into the project at the earliest practicable time, as outlined in the approved plan.

When erosion control measures are not functioning as intended, immediately take corrective action.

Construct and maintain a Floatation Silt Curtain downstream of the crossings to trap and settle silt released during the construction. Upon project completion the Floatation Silt Curtain shall be carefully removed so as to limit any accumulated silt from being deposited in the stream. In addition, approximately 200’ of silt fence shall be installed along the toe of the embankment to prevent construction materials from washing into wetlands. The Silt Fence shall be removed after grasses have been established.

203 - Removal of Structures and Obstructions

203.01_nat_us_02_25_2005

203.01 Description.

Delete and replace with the following:

This work consists of disposing of construction slash and debris, salvaging, removing, and disposing of buildings, fences, structures, pavements, culverts, utilities, curbs, sidewalks, and other obstructions.

203.05_nat_us_02_24_2005

203.05 Disposing of Material.

(e): Scattering. Scatter pieces of wood less than 3 inches in diameter and 3 feet in length within the clearing limits. Do not place construction slash in lakes, meadows, streams, or streambeds.

Immediately remove construction slash that interferes with drainage structures.

203.08_nat_us_02_24_2005

203.08 Payment

Do not measure for disposal of construction slash. Compensation is made as an indirect payment.

208 - Structure Excavation and Backfill for Selected Major Structures

208.04_nat_us_08_05_2009

Construction Requirements

208.04 General.

Add the following to the end of the second sentence of the third paragraph:

"... to the CO a minimum of 5 days prior to beginning excavation work."

Add the following to the end of the third sentence of the third paragraph:

"...to the CO a minimum of 15 days prior to installation."

208.09 Foundation Preparation.

Add the following after the first paragraph:

The foundation elevation is defined as the bottom of footings, for spread footing placement; the bottom of the pile cap, for construction of pile foundations; and the toe of the wall, for construction of retaining walls, except wingwalls at bridges.

Replace all material from any over-excavation below the designated footing elevation with concrete, compacted gravel, or foundation fill at the direction of the CO.

When boulders or irregular, fractured, or seamed bedrock precludes excavation to the designated footing elevation without further loosening of previously solid material, the CO may order removal of such loose material and allow payment for concrete, gravel, or structural backfill that is required to restore foundation material to the designated elevation

208.13 Measurement.

Add the following to the second paragraph:

(f) Material excavated to construct end walls or wing walls which lie outside the excavation limits specified above.

Add the following paragraph:

Foundation over-excavation and the resulting replacement material will not be measured for payment unless the CO determines the over-excavation was unavoidable because of the nature of the material.

209 - Structure Excavation and Backfill

209.00_nat_us_03_24_2008

209.04 – General

The existing crushed aggregate surfacing shall be salvaged and spread over the finished roadway. Any loss of material due to Contractor negligence shall be replaced at the Contractor’s expense.

Manufacturer specifications shall be followed for installation of the structure.

209.07 – Dewatering

Footings shall be cast in a dewatered condition.

Excavated materials used as a cofferdam shall be made impervious by placement of plastic sheating over materials to limit breaches. Water flow must be maintained at all times downstream. Only clean, filtered water may be discharged downstream.

Erosion and sediment control measures shall be incorporated into any stream bypass construction.

209.10 Backfill.

(a) General.

Do not place or backfill pipe that meets any of the following conditions until the excavation and foundation have been approved in writing by the CO:

Embankment height greater than 6 feet at subgrade centerline.

Installation in a protected streamcourse.

Round pipe with a diameter of 48 inches or greater.

Pipe arches with a span of 50 inches or greater.

Any box culvert of structure other than pipe culverts.

209.11_nat_us_02_24_2005

209.11 Compacting.

Delete the subsection and add the following:

Compaction shall be done to the requirements of the manufacturer of the structure

251 - Riprap

251.03_nat_us_08_05_2009

Construction Requirements

251.03 General.

Place riprap under or adjacent to structures before placing prefabricated superstructure units or constructing superstructure falsework unless otherwise approved by the CO.

251.08 Measurement.

Payment for excavation and embankment required for placement of riprap is indirectly included in the pay item for riprap.

308 – Minor Crushed Aggregate

308.04 Placing Crushed Aggregate

Place aggregate surfacing as SHOWN ON THE DRAWINGS. An additional 100 cy of MnDOT Class 1 shall be hauled and spread over the completed project. Crushed aggregate (not including the required ¾”-1” washed aggregate bedding) is available for this project from Forest Service pits but may not located within a reasonable distance to the project.

The Contractor may provide it from a private source.

Compact by operating equipment over aggregate for the full width of the road.

554 - Reinforcing Steel

554.03_nat_us_06_20_2007

Construction Requirements

554.03 Order Lists.

Delete the first paragraph and replace with the following:

Do not submit order lists or bending diagrams for approval.

554.08 Placing & Fastening.

Delete the first sentence and replace with the following:

Place, fasten, and support the bars according to the CRSI Manual of Standard Practice. Use precast concrete blocks or metal supports, but only use precast mortar blocks in areas permanently hidden from view in the completed structure.

Measurement

554.11 Method.

Add the following to the end of the second paragraph:

Do not measure or include reinforcing steel fabricated into the prestressed member.

601 - Minor Concrete

601.00_nat_us_02_27_2007

Delete the entire specification and replace it with the following:

601.01 This work consists of constructing minor concrete structures. Contractor shall be responsible for having the footing designed by a MN licensed professional engineer experienced in similar structural design. Geotechnical Evaluation Reports are available for both locations.

601.02 Conform to the following Subsections:

Air-entraining admixtures 711.02

Chemical admixtures 711.03

Coarse aggregate 703.02

Concrete coloring agents 711.05

Curing material 711.01

Fine aggregate 703.01

Fly ash 725.04

Hydraulic Cement 701.01

Joint fillers 702.01

Precast concrete curbing 725.06

Precast concrete units 725.11

Reinforcing steel 709.01

Structural steel 717.01

Water 725.01

601.03 Concrete Composition. Use the designated concrete composition:

(a) Method A. Submit a mix design showing the proposed masses of aggregate, water, and cement per cubic yard of concrete a minimum of 7 days prior to beginning placement. Proportion the cement, aggregate, and water to obtain concrete with good workability.

Composition of Minor Structure Concrete

Property Specification Test Method

Slump 4 in maximum AASHTO T 119

Air content 5 to 7 percent AASHTO T 152 or T 196

28-day compressive strength 3000 psi AASHTO T 23 and T 22

(b) Method B. Submit the following information a minimum of 7 days prior to beginning placement:

(1) Type, grading, and sources of aggregate.

(2) Type and source of cement, blended cement, or fly ash.

(3) Saturated surface dry weights of the fine and coarse aggregate in pounds per cubic yard of concrete.

(4) Weight of mixing water in pounds per cubic yard of concrete.

(5) Weight of cement in pounds per cubic yard of concrete.

(6) Admixture type, quantity, and certification by manufacturer.

(7) Air content.

(8) Slump.

(9) 28-day compressive strength.

Furnish concrete containing not less than 680 pound of cement per cubic yard. Ensure that slump is 4 inches or less, as determined by AASHTO T 119.

(c) Method C. Make the concrete using a dry, preproportioned, blended, and bagged mix meeting the requirements of ASTM C 387 and mixed at the jobsite according to the manufacturer’s recommendations.

(d) Fly Ash- or Pozzolan-Modified Concrete. Fly ash may be substituted for cement at the rate of 20 ounces of fly ash per 16 ounces of Portland cement. After substitution, reduce the design aggregate volumes by an amount equal to the net increase in volume of the combined cement and fly ash. Replace no less than 10 percent and no more than 20 percent of the weight of Portland cement required with fly ash at the above rate. For purposes of controlling the maximum water/cement ratio of 0.49, make the water/cement ratio for fly-ash-modified concrete the ratio of the weight of water to the combined weights of Portland cement and 60 percent of the weight of the fly ash.

Extend the standard 28-day curing period for compressive-strength tests for fly-ash modified concrete by 1 day (rounded to the nearest whole day) for each 1.5 percent of Portland cement replaced with fly ash at the selected rate. (Example: If the maximum of 20 percent cement is replaced, the curing period for cylinders is 41 days.)

601.04 General. Perform excavation and backfill work according to Section 209. When concrete is cracked, spalling, or scaling, remove concrete to the nearest joint.

Design and construct forms that are free of bulge and warp and allow for removal without injuring the concrete. When concrete contains a retarding admixture, fly ash, or other pozzolan replacement for cement, design the forms for a lateral pressure equal to that exerted by a fluid with a mass of 2.5 ton per cubic yard.

Use wood, metal, or other suitable material for forms. Keep forms clean and coat with a form release agent or form oil before placing concrete.

Place and fasten reinforcing steel according to Subsection 554.08.

601.05 Placing Concrete. Place all reinforcing steel in position and ensure that it is securely held in place by approved supports during placing of concrete. Do not place concrete until the grading, forms, and steel reinforcements have been inspected and approved by the CO. Provide 24 hours written notice prior to placement of any concrete.

Place reinforcing steel according to Section 554.

Discharge all concrete prepared using methods A and B into the forms within the time limits shown in table 601-1. These time limits are based on jobsite ambient air temperature, cement type, and admixture used. Begin counting time from when the cement is introduced into the aggregate. Discharge concrete prepared using method C into the forms within 1-1/2 hours after introducing water to the mixture. Do not retemper concrete. When required cement must be added to the mixer at the jobsite. Do not mix or place concrete when the temperature is, or is expected to be, less than 40 °F unless adequate provisions are made to protect the concrete.

Place concrete to avoid segregation. Use high-frequency internal vibrators for consolidating concrete in the forms. Operate vibrators to produce concrete free of voids, but do not hold them in one place long enough to result in segregation or formation of laitance on the surface.

Method C concrete may be rodded instead of internally vibrated as necessary to remove voids.

Do not use aluminum pipe, conduit, or troughs for transporting concrete. When concrete is pumped, take samples from the discharge stream at the point of placement. Do not apply water to plastic concrete surfaces during finishing operations.

Table 601-1 Concrete discharge time limits.

Cement Type With and Without Admixtures Time limit (hour)

< 85 oF1 >85 oF1

Type I, IA, II, or IIA 2.0 1.5

Type I, IA, II, or IIA with water reducing or retarding admixture

3.0 2.0

Type III 1.5 1.0

Type III with water reducing or retarding admixture 2.0 1.5 1 Ambient air temperature.

601.06 Curing Concrete. Cure concrete a minimum of 7 days. If high early strength cement is used, cure concrete a minimum of 3 days. Cure according to Subsection 552.15. Finish according to Subsection 552.16 class 2 rubbed finish.

601.07 Acceptance. See Table 601-2 for sampling and testing requirements. Material for minor concrete structures including reinforcing steel, and structural steel for minor structures will be evaluated under Subsections 106.03. The concrete mixture's slump, air content, unit mass, and temperature will be evaluated under Subsections 106.02 and 106.04. See Tables 552-1 and 552-2 for specification limits.

Excavation and backfill will be evaluated under Section 209.

Construction of minor concrete structures will be evaluated under Subsections 106.02 and 106.04.

601.08 Measure the Section 601 items listed in the bid schedule according to Subsection 109.02.

Payment

601.09 The accepted quantities will be paid at the contract price per unit of measurement for the Section 601 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

The concrete lump sum item will be prorated based on the progress of the work under this Section.

Any additional quantities of concrete required due to contractor forming or over excavation will not be paid for.

601.02_nat_us_03_02_2005

Table 601-2. Sampling and Testing Requirements.

Material or

Product

Type of Acceptance (Subsection)

Characteristic Category Test Methods Specifications

Sampling Frequency

Point of Sampling

Split Sample

Reporting Time

Concrete Measured and tested for conformance (106.04)

Unit Weight - AASHTO T 121 One set per 32 cubic yards but not less than one per day

Point of discharge

- Upon completion of project

Air content - AASHTO T 152 or AASHTO T

Slump - AASHTO T 119 “ “ - “

Temperature - Field Measured “ “ - “

Compressive strength

- AASHTO T 22 &

AASHTO T 23

“ Discharge stream at point of placement

603 - Structural Plate Structures

603.03_nat_us_03_02_2005

603.02 Materials

Add the following:

Aluminum open bottom box culvert shall be as manufactured by Contech (equal or better) AS SHOWN ON THE DRAWINGS. The Super Cor 15” x 5 ½” corregation box culvert is considered equal or better. It is critical that culvert design meets the minimum and maximum cover requirements AS SHOWN ON THE DRAWINGS.

Manufacturer specifications shall be followed for installation of the structure.

603.03 General.

Add the following:

Do not place or backfill structure until the CO has approved in writing the excavation and foundation. Submit four sets of shop drawings of the long-span structure to the CO at least 21 days before planned construction. Accompany shop drawings with all calculations used to determine the size, shape, location, and spacing of stiffening ribs, thrust beams, or other special structural features.

603.04_nat_us_03_02_2005

603.04 Erecting.

Add to the third paragraph:

Torque all bolts before beginning the backfill.

625 - Turf Establishment

625.03_nat_us_07_02_2007

625.01

Add the following:

Fertilizer, seed, and mulch shall be applied to all road slopes and disturbed areas within the clearing limits that do not receive sod.

625.03 General.

Delete this subsection and replace with the following:

Apply turf establishment to prepared ground or any disturbed area between May 15 to June 20 or between September 1 to October 15). Apply turf establishment to the areas shown on the plans or worklists within 10 days after completion of ground disturbing activities. Seeded areas damaged by construction activities shall be reseeded within 10 days of the damage. Do not seed during windy weather or when the ground is excessively wet, frozen, or snow covered.

Assure that all seed and mulch used in the work conforms to the weed free requirements of Section 713.

625.04 Preparing Seedbed.

Delete entire subsection and replace with the following:

Ensure that the surface soil is in a roughened condition favorable for germination and growth.

625.05 Watering

Delete entire subsection.

625.06 Fertilizing.

Delete entire subsection and replace with the following:

Apply fertilizer having a chemical analysis as listed below by the following methods.

Dry Method. Apply the fertilizer with approved mechanical equipment. Hand operated methods are satisfactory on areas inaccessible to mechanical equipment.

Fertilizer. Apply fertilizer at following rate and chemical analysis:

Seasonal Period Type Application Rate Spring 20-10-20 or 17-17-17 10#/1000SF Fall 10-10-20 or 10-20-30 10#/1000SF

625.07 Seeding.

Delete the first sentence and add the following.

Apply seed mix by the following methods:

(a) Dry method. Delete the third sentence.

Add the following after subsection (b).

Seed Mix. Furnish and apply the following kinds and amounts of pure live seed at the rate of 75#/acre by weight. To be used on road slopes and disturbed areas within the clearing limits that do not receive sod and shall be composed of the following:

Name Percent in Mix

Min. % Germination

Min. % Pure Seed

Red Fescue (Festuca rubra) 16 85 97 Redtop (Agrostis alba) 9 85 97 Slender Wheatgrass (Agropyron)

4 85 97

Canada Wild Rye (Elymus Canadensis)

18 85 97

Kentucky Bluegrass (Poa pratensis)

18 85 97

Regreen 35 85 97

Determine the pounds of seed to be furnished per acre by dividing the pounds of pure live seed required per acre by the product of the percent purity and percent germination.

625.08 Mulching.

Delete the entire subsection and replace with the following:

Apply Mulch within 2 hours after seeding by the following methods.

(a) Dry Method. Apply mulch with a hand spreader or a spreader utilizing forced air at a rate of 2000 pounds per acre. Do not mark or deface structure, pavements, utilities, or plant growth with tackifier.

Inaccessible areas may be mulched by hand. Apply mulch uniformly over the entire disturbed area.

625.09 Protecting and Caring for Seeded Areas

Delete the first sentence and add the following:

Protect and care for seeded areas until final acceptance.

625.11 Measurement.

Delete the entire Subsection and replace with the following:

Measure the Section 625 items listed in the bid schedule according to Subsection 109.02.

635 - Temporary Traffic Control

635.03_nat_us_05_13_2004

635.03 General.

Install temporary traffic control signs to temporary posts or approved temporary sign mounts.

648.00_nat_us_04_17_2008

648 – Streambed Simulation

648.01 This work consists of placing rock and fill to simulate a natural streambed, profile and cross section though road stream crossings. The placement of Channel Rock for: fish rest stop, rock bands, rock weirs, stream bank rocks, and other in stream rock structures, is included within this specification.

648.02 Conform to the following Subsections.

Foundation Fill 704.01

Stream Bed Simulation Material 705.07

Channel Rock 705.08

648.03 General. Place streambed simulation material on a prepared surface to form a well-graded, low permeability mass, similar in appearance and texture to the natural streambed. Do not drive metal track or rubber tired equipment directly on metal or concrete structure surfaces.

The contractor is required to shape a stream channel inside the structure to match above and below the pipe and shall provide the following well mixed gradation which shall be mixed with the existing bedding materials below the current structure. It is recommended that this channel be constructed after footing construction but prior to placement of arch and shall be done in dewatered conditions. However, some hand work may be required to finish against inside of arch after structure placement. Upon completion of channel construction the contractor shall compact materials prior to approval.

Contractor shall randomly place large boulders inside the structure. Some of these large boulders shall be 2/3 buried and some shall be 1/3 buried. The remaining materials shall be used to shape stream. The banks against walls of structure shall tie in with the natural banks above and below structure and shall provide a wildlife passage thru structure. These banks shall be constructed of large boulders with well graded and compacted material filling voids prior to final acceptance. They shall have a surface similar to a natural surface.

648.04 Placed Streambed Simulation Material and Channel Rock.

(a) Method A, Machine Placed. Place stream simulation rock in one or more layers with a layer depth less than 1 ½ times the maximum dimension of the stream simulation rock. Place stream simulation by methods that do not cause segregation or damage to the prepared surface.

Place or rearrange individual rocks by mechanical methods to obtain a compact low permeability mass matching streambed simulation details. Fill voids before placing the next lift. Place fish rest stop, rock bands, rock weirs, stream bank rocks, and other in stream rock structures as designated.

(b) Method B, End Dumped. Dump stream simulation rock in one or more layers with a layer depth less than 1 ½ times the maximum dimension of the stream simulation rock. Distribute larger rocks throughout the mass of stone. Obtain a uniformly dense, compact, low permeability bed with a surface matching stream simulation bed details. Fill voids before placing the next lift.

Place fish rest stop, rock bands, rock weirs, stream bank rocks, and other in stream rock structures as designated.

(c) Method C, Hand Placed. Place stream simulation rock using hand labor. Material may be hand carried, or carried in wheelbarrows and end dumped to obtain its full thickness. Compact each load using hand operated or hand operated mechanical equipment to obtain a uniformly dense, compact, low permeability bed with a surface matching stream simulation bed details.

Fill voids before placing the next lift. Place fish rest stop, rock bands, rock weirs, stream bank rocks, and other in stream rock structures as designated.

648.04 Foundation fill. Fill all voids left during placement of Channel Rocks and Streambed Simulation adjacent to footings, concrete structures or corrugated pipes with foundation fill. Use water pressure, metal tamping rods, and similar hand operated equipment to force material into all surface and subsurface voids between the structure and rocks and between individual rocks.

648.05 Acceptance. Placing streambed simulation material will be evaluated under Subsections

106.02 and 106.04.

648.06 Measure the items listed in the bid schedule according to Subsection 109.02.

Payment

648.07 The accepted quantities, measured as provided in Subsection 109.02, will be paid at the contract unit price per unit of measurement for Section 648 pay items listed in the bid schedule.

Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05

701 - Cement

701.02_nat_us_08_05_2009

701.02 Masonry and Mortar Cement.

(b) Mortar Cement.

Use this mortar in bridge deck and prestressed multi-beam girder keyways instead of high strength non-shrink grout; and, when approved, as a structural repair mortar.

Keep mortar in the original manufacturer's labeled containers until used. Protect as specified for Portland cement in 701.01. Do not use mortar after the expiration date shown on the container or 1 year from date of purchase, whichever date occurs first.

Store, mix, place and cure in accordance with the manufacturer's instructions; submit a copy in advance of use to the CO.

Furnish mortar that is a chemical action concrete of the magnesium ammonium phosphate family and requires no curing under ambient temperatures of 36° - 100° F. Require recommendation by its manufacturer specifically for use in prestressed concrete bridge member keyways that are to be part of the finished wearing and running surface of the bridge, subjected to normal roadway contaminants and conditions promoting wear of normal bridge deck concrete.

Typical properties of the mortar, when tested neat without aggregate, are as follows, except when noted:

Compressive strength (ASTM C 109 modified) of 6000 psi at 24 hours at 72° F or above, and when used below 50° F, 5000 psi.

Modulus of elasticity (ASTM C 469) at 7 and 28 days of 4177 ksi and 4554 ksi.

Freeze-thaw durability (ASTM C 666, Procedure A Modified) of a relative dynamic modulus greater than 80 percent after 300 cycles.

Scaling resistance to deicing chemicals (ASTM C 672) after 5 and 25 cycles at a rating of

0, shall show no surface scaling; after 50 cycles at a rating of 1.5 shall show only slight surface scaling.

Sulfate resistance (ASTM C 1012) length change after 52 weeks shall be no greater than

0.9 percent.

Coefficient of thermal expansion (CRD-C 39-81) when run with 1inch x 1 inch x 11 inch bars and neat mixes without aggregate, shall be within 10 percent of 7150 psi/degree Fahrenheit.

Flexural strength (ASTM C 78 Modified) of 3 inch x 4 inch x 16 inch prisms shall be 3.8 550 psi at 24 hours for the mortar only, and 670 psi with 3/8 inch pea gravel.

Submit independent tests for the mortar recommended for use from 50° - 100° F, when used to fill test specimens conforming to the Government's bridge box beam test keyway, showing the following results:

Lateral (horizontal) shear between adjacent members: Range of 14 k/ft of keyway Vertical shear between adjacent members: 16 k/ft of keyway Direct tension between adjacent members: 6 k/ft of keyway.

Submit independent tests for the mortar recommended for use from 36° - 50° F, when used to fill test specimens conforming to the Government's bridge box beam test keyway, showing the following results:

Lateral (horizontal) shear between adjacent members: Range of 2.4 k/ft of keyway Vertical shear between adjacent members: 6 k/ft of keyway

Direct tension between adjacent members: 4 k/ft of keyway.

Two products that meet these requirements are BASF/Master Builders Technologies Regular Set-45 [for use below 50° F] and Set-45 Hot Weather Formula [for use from 50° - 100° F].

Use Set-45 Hot Weather Formula in air temperatures from 50° - 100° F. Use Regular Set-45 only in air temperatures below 50° F. When used in temperatures below 36° F, use approved weather precautions designed to prevent the mortar from freezing. Except when used in bridge deck keyways and blockouts, Regular Set-45 may be extended by the addition of 20 pounds of washed and clean 3/8 inch minus pea gravel per 50 pound bag when placed in thicknesses over

1.5 inches, or when approved by the CO.

Unless using one of the two products described above, submit products proposed for use to the CO for approval, and accompany them with the manufacturer’s submittals substantiating all requriements in this section, including (1) graphs or charts showing the time, temperature, humidity, and curing requirements to achieve mortar strengths equal to the adjacent concrete;

and (2) complete recommendations for storage, mixing, application and curing procedures.

704 - Soil

704.02_nat_us_03_02_2005

704.02 Bedding Material.

Delete Subsection 704.02 and substitute the following:

Furnish a well graded, free draining material free of excess moisture, muck, frozen lumps, roots, sod, or other deleterious material conforming to the following:

(a) Maximum particle size 3 inch or half the corrugation depth, whichever is smaller

(b) Material passing No. 200 sieve, 10% max.

AASHTO T 27 and T 11

705 - Rock

705.02_nat_us_04_13_2007

705.02 Riprap Rock.

Delete Table 705-1 and replace it with the following:

Gradation Requirements for Riprap

Class Percent of Rock by Mass

Mass (pounds)

Approximate Cubic Dimension b,c (inches)

20 22 to 33 6 to 8 30 11 to 22 5 to 6 40 1.1 to 11 2 to 5 10a 0 to 1.1 0 to 2

20 55 to 110 8 to 10 30 22 to 55 6 to 8 40 2.2 to 22 3 to 6 10a 0 to 2.2 0 to 3

20 220 to 330 14 to 16 30 110 to 220 10 to 14 40 11 to 110 5 to10 10a 0 to11 0 to 5

20 550 to 770 18 to 20 30 220 to 570 14 to 18 40 22 to 220 6 to 14 10a 0 to 22 0 to 6

4a

20 770 to1353 20 to 24 30 330 to 770 16 to 20 40 33 to 330 7 to16 10a 0 to 33 0 to 7

20 1540 to 2200 26 to 28 30 770 to 1540 20 to 26 40 55 to 1100 8 to 20 10a 0 to 55 0 to 8

20 1870 to 3520 28 to 34 30 1100 to 1870 22 to 28 40 110 to 1100 10 to 22 10a 0 to 110 0 to 10

20 4400 to 5940 35 to 39 30 2200 to 4400 28 to 35 40 220 to 2200 14 to 28 10a 0 to 220 0 to 14

20 7000 to 10000 42 to 47

8 30 4000 to 7000 35 to 42 40 400 to 4000 16 to 35 10a 0 to 400 0 to 16

(a) Furnish spall and rock fragments graded to provide a stable dense mass.

(b) The volume of a rock with these cubic dimensions has a mass approximately equal to the specified rock mass.

(c) Furnish rock with breadth and thickness at least one-third its length.

705.07_nat_us_04_17_2008

705.07 Streambed Simulation Rock.

(a) General. Furnish a mixture of soil, gravel, cobble, and boulders to simulate a natural streambed. The cobbles and boulders should be hard, durable rock that conforms to test values in 705.02.

Table 705-5 – Gradation requirements for Streambed Simulation Material, inches or sieve size

Bed Class 100% passing 84% passing 50% passing 16% passing 10% passing

2 5 2 3/4 1/4 No. 10

4 10 4 1 3/4 1/2 No. 10

6 14 6 2 1/2 3/4 No. 10

8 22 8 3 1 No. 10

10 24 10 4 1 No. 10

12 30 12 5 1 1/2 No. 10

14 36 14 6 1 3/4 No. 10

16 42 16 7 2 No. 10

20 48 20 8 3 No. 10

24 60 24 10 3 No. 10

36 72 36 14 4 No. 10

48 96 48 18 6 No. 10

705.08_nat_us_04_17_2008

705.08 Channel Rock.

(a) General. Furnish hard, durable rock that consists of intact blocks without open fractures, foliation, or other planes of weakness. Conform to test values in 705.02.

(b) Sized and shapes. Furnish rocks that are generally cubical, tabular, or rectangular in shape, with dimensions as designated, or as specified in the following table:

Table 705-6 gradation requirement for Channel Rock

Rock Size

(Man Rock)

Mass (Pounds) Approximate Cubic Dimension (inches)

1 50-200 12-18

2 200-700 18-28

3 700-2000 28-36

4 2000-4000 36-48

5 4000-6000 48-54

6 6000-8000 54-60

(c) Color. Furnish rocks with a color indigenous to the area. Rocks should be free of machine-made scratches, mars, or other damage to the visible surface. If requested, submit a 12 in sample of rock that is representative of the rock color for approval by the

CO.

709 - Reinforcing Steel and Wire Rope

709.01_nat_us_07_03_2007

709.01 Reinforcing Steel.

(b) Reinforcing bars.

Delete paragraph one and replace with the following:

Furnish deformed, grade 60 bars conforming to AASHTO M 31.

(d) Tie bars.

Delete paragraph one and replace with the following:

Furnish deformed, grade 60 bars conforming to AASHTO M 31.

(e) Hook bolts.

Delete paragraph one and replace with the following:

Furnish plain, grade 60 bars conforming to AASHTO M 31 with M14 rolled threads or M16 cut threads. Furnish a threaded sleeve nut capable of sustaining a minimum axial load of 15,000 pounds.

709.02 Wire Rope Or Wire Cable.

Delete paragraph one and replace with the following:

Furnish wire rope or wire cable, and associated fittings, conforming to AASHTO M 30. Furnish

0.75 inch diameter Type II wire rope, with Class C zinc coating, unless otherwise shown on the plans.

709.03 Prestressing Steel.

Delete all to subsection (a) and replace with the following:

Fabricate from one of the following:

Seven-wire uncoated strand conforming to AASHTO M 203, Grade 270, Supplement I, low relaxation strand, minimum ultimate tensile strength 270 ksi, unless shown otherwise on the plans.

Epoxy coated seven-wire strand, ASTM A 882, Grade 270, low relaxation strand, minimum ultimate tensile strength 270 ksi, unless shown otherwise on the plans.

High tensile strength wire, AASHTO M 204, Type BA or WA, Supplement I (low relaxation), unless shown otherwise on the plans.

High strength steel bars, AASHTO M 275M, Type II, minimum ultimate tensile strength 150 ksi, unless shown otherwise on the plans.

713 - Roadside Improvement Material

713.05_nat_us_03_02_2005

713.05 Mulch.

Assure that mulch used on the project is certified noxious weed free by the appropriate authority in the jurisdiction of use.

Obtain straw for mulching from oats, wheat, rye or other grain crops that are free from weeds, mold, and other objectionable material. Furnish straw mulch in an air-dry condition suitable for placing with mulch blower equipment.

717 - Structural Metal

717.01_nat_us_08_05_2009

717.01 Structural Steel

(e) High-Strength Bolts, Nuts, & Washers.

Delete the first paragraph and replace with the following:

Conform to either AASHTO M164 or AASHTO M253, as specified. Use Type 3 bolts in combination with unpainted weathering structure steel. Conform to AASHTO M293 (ASTM F 436) for hardened steel washers.

Add the following subsections:

(f) Load-Indicating Washers.

Furnish load-indicating washers (Compressible-washer-type DTI's) conforming to ASTM F 959, Type 8.8 or 10.9. Use Type 8.8 with AASHTO M 164 bolts and with ASTM F 568, Class 8.8 tie rods; use Type 10.9 with AASHTO M 253 bolts. When galvanizing is shown on the plans, furnish DTI's mechanically galvanized to conform to AASHTO M 298, Class 50, Type I. When used with other components that are weathering steel or are to be coated the color of weathering steel, furnish DTI's protectively coated with baked epoxy in a black color.

(g) Steel Anchor Bolts.

Furnish steel anchor bolts of the dimensions shown on the plans. Furnish steel anchor bolts that conform to AASHTO M314, Grade 40 unless otherwise shown on the plans. Ensure that the exposed portion of the bolt is zinc coated by hot dip or mechanical deposition.

(h) Structural Steel Tubing.

Furnish structural steel tubing that conforms to ASTM A500, grade B or ASTM A501 unless otherwise shown on the plans.

717.07 Galvanized Coatings

Furnish hot-dipped galvanized hardware and fasteners conforming to AASHTO M 232 and mechanically galvanized hardware and fasteners conforming to AASHTO M 298.

Repair damaged galvanized surfaces by power or hand tool cleaning, followed by 2 brush applications of zinc rich 2 component paint meeting FS TT-P-641, FS TT-P-1046A or MIL-P- 21035. Single component brush or spray-on zinc or galvanizing compounds are not permitted. A source for TT-P-641 paint is Far West Paint Company, Tukwila, WA 206-244-8844.