CIM-0900-20F-194-0920-03_Texas Falls Trail Bridge_Supplemental Specsx.pdf

Supplemental Specifications February 2009

CIM-0900-20F-194-0920-03 Trail Bridge

Texas Falls Recreation Area Page 1 of 33 Reconstruction Project

SECTION C – FOREST SERVICE SUPPLEMENTAL SPECIFICATIONS

The U.S. Department of Transportation, Federal Highway Administration, Standard

Specifications for Construction of Roads and Bridges on Federal Highway Projects, FP-03, U.S.

Customary Units and its revisions are included by reference only. Also applicable, but not listed, is any other section or subsection of the included Specification(s) or any specific standard or specification referenced therein. The requirements contained in these specifications are hereby made a part of this Solicitation for Bid and any resulting contract.

A copy of the U.S. Department of Transportation, Federal Highway Administration, Standard

Specifications for Construction of Roads and Bridges on Federal Highway Projects, FP-03, U.S.

Customary Units can be obtained at the following locations:

Superintendent of Documents

U.S. Government Printing Office

Internet: bookstore.gpo.gov

Phone: (toll free) 866.512.1800

Fax: 202.512.2250

Mail: Stop SSOP, Washington, DC 20402-0001

They can also be downloaded directly at the following website:

http://flh.fhwa.dot.gov/resources/pse/specs/

The following Forest Service Supplemental Specifications are revisions to the Standard

Specifications that incorporate specification changes or additions that are specific requirements and unique to this particular project. The specifications are herein modified as follows:

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Table of Contents

Introduction

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

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109.02 Measurement Terms and Definitions

155 - Schedules for Construction Contracts

155 Delete

157 - Soil Erosion Control

157.03 General

201 - Clearing and Grubbing

201.02 Material:

201.01 Description

201.04 Clearing. (c)

201.06 Disposal

204 - Excavation and Embankment

204.09 Preparing Foundation for Embankment Construction

204.10 Embankment Construction

204.11 Compaction

204.13 Sloping, Shaping, and Finishing

204.13 Sloping, Shaping, and Finishing

Table 204-2 Construction tolerances

204.14 Disposal of Unsuitable or Excess Material

204.15 Acceptance

Table 204-1 Sampling and Testing Requirements

208 - Structure Excavation and Backfill for Selected Major Structures

208.04 General

552 - Structural Concrete

554 - Reinforcing Steel

556 - Bridge Railing

571 - Prefabricated Bridges

571.12

571.13

599 – Composite Wood Decking

633 - Permanent Traffic Control

633.02 Material

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633.03 General

633.05 Panels

634 - Permanent Pavement Marking

634.03 General

701 - Cement

701.02 Masonry and Mortar Cement

709 - Reinforcing Steel and Wire Rope

712 - Joint Material

712.01 Sealants, Fillers, Seals, and Sleeves

713 - Roadside Improvement Material

713.05 Mulch

718 - Traffic Signing and Marking Material

718.02 Reserved

718.02 Protective Overlay Film and Edge Film

718.05 Aluminum Panels

725 - Miscellaneous Material

725.04 Pozzolans

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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.

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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.

Add Figure 101-1—Illustration of road structure terms:

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Figure 101-1—Illustration of road structure terms.

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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.

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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.

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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.

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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”.

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.

155 - Schedules for Construction Contracts

155.00_nat_us_05_11_2004

155 Delete.

Delete Section 155 in its entirety.

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.

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201 - Clearing and Grubbing

201.00_nat_us_08_05_2009

201.02 Material:

Delete Tree wound dressing material reference.

201.03 General.

Delete the last sentence.

201.04 Clearing.

Delete the last sentence of (d).

201.01_nat_us_02_18_2005

201.01 Description

Replace with the following

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

201.04_nat_us_02_22_2005

201.04 Clearing. (c)

Delete paragraph (c) and 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, stump heights will meet the requirements of the Timber Sale contract.

201.04 Clearing.

Delete subsection (d) and replace with 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.

Add the following:

(e) Trim branches of remaining trees or shrubs to give a clear height of 14 feet above the roadbed unless otherwise indicated. Trim tree limbs as near flush with the trunk as practicable.

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(f) 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.

201.06_nat_us_11_04_2004

201.06 Disposal.

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

Merchantable timber removed from Forest Service land is subject to the Forest Resources

Conservation and Shortage Relief Act of 1990 (PL 101-382; 104 Stat. 714-726; 16 USC 620 et.

seq.). Do not export timber from the United States or use in direct or indirect substitution for unprocessed timber exported from the United States, from private lands by Purchaser, or any person as defined in Section 493 (16 USC 620e) of the Act.

Unless Forest Service determines that circumstances warrant a written waiver or adjustment, (1) hammer brand all products on both ends with an assigned contract brand before removal from the project site, (2) hammer brand each product exempt from domestic processing on both ends with an exempt brand registered for use on exempt logs from National Forest, and (3) paint all domestic processing products on both ends with 2 inch circle of yellow paint according to

Interim Specification 2400-400 (available upon request). Paint or brand products before removing them from project site unless approved by the CO. Brands and yellow paint must remain on logs until they are processed.

Contractor may remanufacture logs into different log lengths as approved. Repaint or rebrand all remanufactured pieces. Pay all surveillance costs except that Forest Service may waive such payment if such costs are minor and part of normal remanufacturing operations.

204 - Excavation and Embankment

204.05_nat_us_02_18_2005

204.05 Conserved Topsoil

Delete the entire paragraph.

204.06_nat_us_03_02_2005

204.06 Roadway Excavation

(a) General.

Add the following:

Retrieve material deposited outside of the clearing limits as directed by the CO. Place unsuitable material in designated areas.

204.09_nat_us_03_02_2005

204.09 Preparing Foundation for Embankment Construction.

Delete subsection (a) and replace it with the following:

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(a) Embankment less than 4 feet high over natural ground. When designated, remove topsoil and break up the ground surface to a minimum depth of 6 inches by plowing or scarifying.

Compact the ground surface according to Subsection 204.11.

204.10_nat_us_03_02_2005

204.10 Embankment Construction.

Obtain written approval before beginning construction of embankments over 6 feet high at subgrade centerline.

(a) General.

Delete the third paragraph and add the following:

Compact embankment side slopes flatter than 1V:1.75H with a tamping type roller or by walking with a dozer. For slopes 1V:1.75H or steeper, compact the slopes as construction of the embankment progresses.

204.11_nat_us_04_11_2005

204.11 Compaction.

Delete the first paragraph and replace it with the following:

For compaction according to method (a), (b), or (c), use AASHTO T 27 to determine the amount of material retained on a Number. 4 sieve. For compaction methods (d) or (e) no sieve test is required.

Add the following compaction methods:

(d) Layer Placement Method (Hauling and Spreading Equipment). Place material by end dumping to the minimum depth needed for operation of spreading equipment. Level and smooth each embankment layer before placing the next layers. Operate hauling and spreading equipment uniformly over the full width of each layer. Construct a solid embankment with adequate compaction by working smaller rock and fines in with the larger rocks to fill the voids, and by operating hauling and spreading equipment uniformly over the full width of each layer as the embankment is constructed.

(e) Layer Placement (Roller Compaction) Method. Place material by end dumping to the minimum depth needed for operation of spreading equipment. Adjust the moisture content of the material to obtain a mass that will not visibly deflect under the load of the hauling and spreading equipment. Operate compaction equipment over the full width of each layer until visible deformation of the layer ceases or, in when a sheepsfoot roller is used, the roller “walks out” of the layer. Make at least three complete passes.

204.13_nat_us_03_02_2005

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204.13 Sloping, Shaping, and Finishing.

(a) Sloping.

Add the following:

Slope rounding is not required on tolerance class D though M roads.

204.13_nat_us_03_02_2005

204.13 Sloping, Shaping, and Finishing.

Delete section (d) and add the following:

(d) Finishing. For surfaced roads, remove all material larger than 6 inches from the top 6 inches of the roadbed. For all roads, finish the roadbed to be smooth and uniform, and shaped to conform to the typical sections. Remove unsuitable material from the roadbed and replace it with suitable material. Finish roadbeds to the tolerance class shown in table 204-2.

Ensure that the subgrade for both surfaced and unsurfaced roads is visibly moist during shaping and dressing. Scarify to 6 inches below the bottom of low sections, holes, cracks, or depressions and bring back to grade with suitable material. Maintain proper ditch drainage.

For unsurfaced roads, use one of the following methods to finish the roadbed:

(1) Method A. Remove all material larger than 6 inches from the top 6 inches of the roadbed and replace with suitable material.

(2) Method B. Use a vibratory grid roller or approved equal with a minimum weight of 10 tons. Roll at least 5 full-width passes or until visible displacement ceases.

(3) Method C. For roads designated as Construction Tolerance Class K, L, or M, finish the roadbed by spreading the excavation. Eliminate rock berms.

Add Table 204-2—Construction Tolerances:

Table 204-2 Construction tolerances.

Tolerance Class (a)

A B C D E F G H I J K L M

Roadbed width (ft) +0.5 +0.5 +1.0 +1.0 +1.0 +1.0 +1.5 +1.0 +2.0 +2.0 +2.0 +2.0 +2.0

Subgrade elevation

(ft)

+0.1 +0.2 +0.2 +0.5 +0.5 +1.0 +1.0 +1.5 +2.0 +3.0 +2.0 +3.0 (c)

Centerline alignment (ft)

+0.2 +0.2 +0.5 +0.5 +1.0 +1.0 `+1.5 +1.5 +2.0 +3.0 +3.0 +5.0 (c)

Slopes, excavation, and embankment (% slope(b)

+3 +5 +5 +5 +5 +5 +10 +10 +10 +10 +20 +20 +20

a. Maximum allowable deviation from construction stakes and drawings.

b. Maximum allowable deviation from staked slope measured from slope stakes or hinge points.

c. Unless otherwise shown the centerline alignment and subgrade elevation, as built, have no horizontal curves with a radius of less than 80 feet, and no vertical curves with a curve length of

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204.14_nat_us_03_02_2005

204.14 Disposal of Unsuitable or Excess Material.

Delete the text of the first paragraph and substitute the following:

Dispose of unsuitable or excess material at designated sites or legally off of the project.

204.15_nat_us_02_07_2007

204.15 Acceptance

Table 204-1 Sampling and Testing Requirements.

Add the following note to the table:

(2) When compaction methods (d) or (e) are used AASHTO M 145, T 99, T 180, and T 310 are not required for earth embankment test methods.

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.

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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.

552 - Structural Concrete

552.02_nat_us_06_20_2007

Material

552.02 Add the following:

Anchor bolts 717.01

Dowels 717.17

Epoxy resin adhesives 725.21

High strength non-shrink grout 701.02

Mortar 701.02

Portland cement 701.01

Sealants, fillers, seal, and sleeves 712.01

552.03 Composition (Concrete Mix Design).

Delete Tables 552-1, 2, and 3 and replace with the following:

Table 552-1

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Composition of Concrete

Class of

Concrete

Minimum

Cement

Content

(pound per cubic yard)

Maximum

W/C

Ratio

Slump (1)

(inches)

Maximum

Nominal Coarse

Aggregate

Size (5)

(inches)

A 611 0.49 2 to 4 1½

A(AE) 611 0.44 1 to 4 1½

B 517 0.58 2 to 4 2½

B(AE) 517 0.58 2 to 4 2½

C 658 0.49 2 to 4 ¾

C(AE) 658 0.44 1 to 3 ¾

D(AE)

(2)

611 0.40 1 to 3 1½

E(AE)

(3)

611 0.40 4 to 6 (4)

¾

P

(Prestressed) 658 0.44 0 to 4 1

P(AE) 658 0.44 0 to 4 1

Seal 658 0.54 4 to 8 1½ (1) Maximum slump is 8 inches if approved mix design includes a high-range water reducer.

(2) Concrete with a water reducing and retarding admixture conforming to AASHTO

M 194, type D.

(3) A latex modified concrete with 0.037 gallons of modifier per pound of cement.

(4) Measure the slump 4 to 5 minutes after the concrete is discharged from the mixer.

(5) Meeting the processing requirements of AASHTO M43, Table 1 – Standard

Sizes of Processed Aggregate.

(6)

Use Class P (AE) concrete in the entire depth of the top flange of all multi-beam bridge girders. In lieu of this, Class P (AE) concrete may be used for fabrication of the entire girder, and throughout the entire depth of prestressed slabs. In all cases, furnish concrete meeting the 28 day specified minimum concrete strength requirements for the prestressed members as shown on the plans, unless otherwise specified.

Table 552-2

Minimum Air Content for Air Entrained Concrete

Nominal Maximum

Aggregate Size (1)

As Delivered

Minimum Air

Content

(2) (3)

2½ inch 3.5

2 inch 3.5

1½ inch 4.0

1 inch 4.5

¾ inch 4.5

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½ inch 5.5 (1) Meeting the processing requirements of AASHTO

M 43, Table 1 – Standard Sizes of Processed

Aggregate.

(2) These air contents apply to the total mix. When testing these concretes, aggregates larger than 1½ inches are removed by handpicking or sieving, and air content is determined on the minus 1½-inch fraction of the mix. Air content of the total mix is computed from the value determined on the minus 1½-inch fraction.

(3) For P(AE) concrete, the as delivered minimum air contents may be reduced 1.0 % and the maximum air content is 6.0 %

Table 552-3

Required Average Compressive Strength (1)

Specified Compressive

Strength (f’c)

(psi)

Required Average

Compressive Strength

(f’cr)

(psi)

Less than 3000 f’c + 1000

3000 to 5000 f’c + 1200

Over 5000 1.10f’c + 700

(1) Use this table when there is not enough data available to establish a standard deviation

Delete the first paragraph after Table 552-2 and replace with the following:

Submit written concrete mix designs for approval at least 30 calendar days before production.

Add the following under the list of items to be included in the mix design submittal:

(y) Evaluation of potential aggregate reactivity

552.08 Delivery.

(a) Truck mixer/agitator.

Add the following:

Do not exceed 130 total revolutions at mixing speed, including both initial mixing and remixing. Do not exceed 300 total revolutions, including both mixing and agitating speed.

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552.09 Quality Control of Mix.

Add the following after the first paragraph:

At least 2 weeks prior to the start of concrete placement operations, arrange a pre-concrete placement conference. Coordinate attendance with the CO and any applicable subcontractors.

Be prepared to discuss and/or submit the following:

(1) Proposed concrete placement schedule.

(2) Review approved concrete mix design and determination of batch weights.

(3) Discuss Section 153, Contractor Quality Control, minimum frequency schedule for process control sampling and testing (to be performed by the Contractor).

(4) Discuss batching, mixing, placing, and curing requirements.

(5) Discuss Subsections 106.03, Certification, and 106.05, Statistical Evaluation of

Material for Acceptance.

552.11 Handling and Placing Concrete.

Add the following after the forth paragraph:

Use an approved form release agent to produce a minimum of staining, air holes, and hydration discoloration.

552.12 Construction Joints.

Add the following at the end of the first paragraph:

Provide form cleanout ports at construction joints.

552.18 Loads on New Concrete Structures.

Add the following paragraph:

Do not allow public traffic on the bridge until approaches, curbs, and bridge rail are completed and in-place. Erect barricades at each end of bridge spans when road approaches allow vehicles to drive directly onto the structure.

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554 - Reinforcing Steel

554.03_nat_us_06_20_2007

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.

556 - Bridge Railing

556.01_nat_us_07_03_2007

Description

556.01

Prior to acceptance of the completed structure, clean the bridge and approach rail of all foreign matter, including dirt, cement paste and petroleum products, leaving these surfaces in the same condition as when they left the fabricator. Use hand tool, solvent and blast cleaning as required but use power tool cleaning only as approved.

Material.

556.02

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Galvanized coating repair 717.07

Structural steel tubing 717.01(h)

556.05 Steel Railing.

Add the following at the beginning of the first sentence.

"Except as provided for in the supplemental specifications or shown on the plans, ... "

For galvanized rail, galvanize in accordance with AASHTO M111, and furnish nuts, bolts, and washers galvanized in accordance with AASHTO M 232. Repair minor abrasions, cuts and all damaged areas with a galvanized coating in accordance with 717.07.

571 - Prefabricated Bridges

571.00_nat_us_03_15_2005

Description

571.01 This work consists of designing, fabricating, delivering, and installing a prefabricated modular bridge superstructures, or transporting and installing Government-furnished prefabricated, modular superstructures and components. The work also includes constructing caps, bearings, and abutments including excavation and backfill and anchoring bridge superstructures to abutments as required

Materials

571.02 Requirements. Furnish materials that meet the requirements specified in the following sections:

Bridge Railing 556

Structural Metal 717

Prestressed Concrete 553

Reinforcing Steel 554

Steel Structures 555

Structural Concrete 552

Timber Structures 557

Material for Timber Structures 716

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Concrete compressive strength, structural steel tensile strength, finish and designation, timber species, grade, and treatment, and other material specifications shall be as required or if not listed in the contract documents, take them from the manufacturer’s drawings, and have them approved by the CO prior to fabrication.

571.03 Design Requirements. For required loadings use the most recent AASHTO “Standard

Specifications for Highway Bridges”.

When design of the structure is required, submit plans and calculations signed by a professional engineer registered in the state where the bridge will initially be located or in the state where the fabricator’s offices are located.

Use durable materials to allow removal, transportation, and re-installation without using specialized construction equipment. When required, design bridges to allow transportation by air or pack animals and complete construction by manual labor. Use design techniques and fabrication methods to minimize field installation difficulties. Fabricate primary components from steel.

Rig main superstructure components with permanent lifting devices to facilitate efficient installation and removal of these items. Place lifting devices so as not to interfere with traffic.

571.04 Design Drawings. When furnishing a prefabricated bridge superstructure, submit design drawings, calculations, or shop drawings at least 21 days in advance of the start of fabrication to allow time for review and correction of any changes and approval by the CO. Include plan, elevation, and section views of the modular bridge superstructure, dimensions of all components, welding and connection details, and general and specific notes regarding design and construction.

When Government-furnished prefabricated bridge superstructure components are specified, material lists, installation information, and manufacturer’s instructions will be furnished by the

Government.

571.05 General. Perform excavation, backfill, and embankment work under Sections 204 and

209.

Dispose of all debris resulting from operations in accordance with Section 203.

571.06 Performance. Notify the CO at least before delivering the bridge.

If the prefabricated superstructure is not installed immediately upon delivery to the project site, provide appropriate equipment and labor to unload and stack, support, and store all material at the delivery point. Support and stack all components to prevent damage. Furnish and install blocking to support all components at least 12 inches above the ground.

Furnish all tools, devices, special equipment, and material needed for installation in well-marked watertight containers suitable for long-term, outdoor storage.

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571.07 Abutments and Approaches. Construct required caps, bearing, and abutments according to Division 500. Construct approaches including excavation and backfill according to sections 204 and 209.

571.08 Contractor-Furnished Prefabricated Bridge Superstructure. Furnish the following items for approval prior to delivery of the bridge component:

(a) Supplier or inspection agency certification of wood species and grade of all timber and a conformance certificate for all sawn and glued laminated members.

(b) Certification by an approved inspection and testing agency of wood treatment, listing method of treatment, type of preservative, retention, and penetration. Supplier certification is permitted if each piece is stamped or branded with a legible American Wood Preservers Bureau quality mark.

(c) Certification of structural steel, fasteners, and hardware.

(d) Certification of galvanizing process used.

(e) Steel fabricator certification that steel fabrication and quality control meet the requirements of the AISC Code of Standard Practice; and that all welding meets the requirements of

ANSI/AASHTO/AWS D 1.5 Bridge Welding Code.

(f) A complete list of all bridge components, hardware, and fasteners.

(g) Complete instructions and drawings. Provide drawings that are black line, of reproducible quality, on ANSI sheet size D (24 inches by 36 inches). Furnish the same information in an approved electronic format.

Mark each major component of the bridge superstructure with the same permanent serial number in a location that is clearly visible, both when stacked in storage and erected at the site.

Assemble bridge superstructure prior to delivery to assure proper fit-up of all components.

Notify the CO of the assembly 2 weeks before assembly.

571.09 Government-Furnished Prefabricated Bridge Superstructure. For Government-furnished prefabricated bridge units, transport all material from the storage site(s) to the bridge site, and install the superstructure complete and in place, including connection of all girders, diaphragms, railings, panels, transoms, and other elements.

Upon taking possession of the Government-furnished units at the storage site, assume liability for damage resulting from handling, transporting, or erecting the units in place, until final acceptance of the project.

571.10 Non-pressure Epoxy Grout Anchors. Furnish non-pressure epoxy grout to cement anchor dowels and bolts. At least 15 days prior to use submit for approval manufacture’s test information on the non-pressure epoxy grout proposed for use.

Immediately prior to placing dowels or bolts, clean drill hole of dust and other material. Fill hole halfway with grout. Insert dowels by rotating it though one complete turn while tapping it down.

Insert bolts according to manufacture’s instructions. If necessary add more grout to fill the hole.

571.11 Acceptance. Furnish a production certification for timber, including glued-laminated lumber, structural steel, and fabricated steel. Furnish a certification for all wood treatment, fasteners, hardware, galvanizing processes, and non-pressure epoxy grout.

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Measurement

571.12 Measure the Section 571 items listed in the bid schedule according to Subsection 109.02.

Payment

571.13 The accepted quantities, measured as provided in Subsection 109.02 and above, will be paid at the contract price per unit of measurement for the Section 571 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See

Subsection 109.05.

599 – Composite Wood Decking

The following section is herby added:

599.01 Description. This work consists of furnishing, preparing and erecting composite wood decking. It also includes all associated hardware and accessories.

599.02 Submittals.

A. Submittals for Review:

1. Product Data: Indicate sizes, profiles, surface finishes, and performance characteristics.

2. Samples: 12 inch long decking sample illustrating size, profile, color, and surface finish.

C. Closeout Submittals:

1. Maintenance Data: Manufacturer’s instructions on care and cleaning of composite wood products.

599.03 Delivery, Storage and Handling

A. Deliver, store, and handle composite wood in accordance with manufacturer’s instructions.

B. Store composite wood level and flat, off ground or floor, with supports at each end and maximum 24 inches on center.

C. Do not stack composite wood over 12 feet high.

D. Cover composite wood with waterproof covering, vented to prevent moisture buildup.

599.04 Warranties. Furnish manufacturer’s 25 year warranty providing coverage against checking, splitting, splintering, rotting, structural damage from termites, and fungal decay of composite wood.

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599.05 Manufacturers.

A. Contract Documents are based on products by Trex Company, Inc.

B. Substitutions: Approved Equal

599.06 Materials.

A. Composite Wood:

1. Composition: Reclaimed wood and plastic with integral coloring; free from toxic chemicals and preservatives.

2. Profiles:

a. Decking: Nominally 2 x 6

b. Nailers: Nominally 1 x 8 ((3) each stacked)

3. Surface texture: contoured

4. Color: Grey (Approval required)

5. Characteristics:

a. Abrasion resistance: 0.01 inch wear per 1000 revolutions, tested to ASTM D2394.

b. Hardness: 1124 pounds, tested to ASTM D143.

c. Self ignition temperature: 743 degrees F, tested to ASTM D1929.

d. Flash ignition temperature: 698 degrees F, tested to ASTM D1929.

e. Flame spread rating: 80, tested to ASTM E84.

f. Water absorption, 24 hour immersion, tested to ASTM D1037:

1) Sanded surface: 4.3 percent.

2) Unsanded surface: 1.7 percent.

g. Thermal expansion coefficient, 36 inch long samples: 1) Width: 35.2 x 10-6 to 42.7 x

10-6. 2) Length: 16.1 x 10-6 to 19.2 x 10-6.

h. Fastener withdrawal, tested to ASTM D1761:

1) Nail: 163 pounds per inch.

2) Screw: 558 pounds per inch.

i. Static coefficient of friction:

1) Dry: 0.53 to 0.55, tested to ASTM D2047. 2) Dry: 0.59 to 0.70, tested to ASTM

F1679. 3) Wet: 0.70 to 0.75, tested to ASTM F1679.

j. Fungus resistance, white and brown rot: No decay, tested to ASTM D1413.

k. Termite resistance: 9.6 rating, tested to AWPA E-1.

l. Specific gravity: 0.91 to 0.95, tested to ASTM D2395.

m. Compression:

1) Parallel: 1806 PSI ultimate, 550 PSI design, tested to ASTM D198.

2) Perpendicular: 1944 PSI ultimate, 625 PSI design, tested to ASTM D143.

n. Tensile strength: 854 PSI ultimate, 250 PSI design, tested to ASTM D198.

o. Shear strength: 561 PSI ultimate, 200 PSI design, tested to ASTM D143.

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p. Modulus of rupture: 1423 PSI ultimate, 250 PSI design, tested to ASTM D4761.

q. Modulus of elasticity: 175,000 PSI ultimate, 100,000 PSI design, tested to ASTM

D4761.

r. Thermal conductivity: 1.57 BTU per inch per hour per square foot at 85 degrees F, tested to ASTM C177.

559.07 Accessories. Fasteners: Type, size and length as specified in the plans.

559.08 Installation.

A. Install composite wood in accordance with manufacturer’s instructions, fasten according to plans.

B. Cut, drill, and rout composite wood using carbide tipped blades.

C. Pre-drill fastener holes located closer than 1 inch from edges.

D. Cut ends square and true.

E. Do not use composite wood products as structural members.

F. Do not exceed maximum spans recommended by manufacturer.

I. Leave expansion spaces between abutting boards and between boards and adjacent construction:

1. End gaps between boards: 1/8 inch at ambient temperatures of 60 degrees F and above and

3/16 inch at ambient temperatures below 60 degrees F.

2. Side gaps between boards: 1/4 inch at ambient temperatures of 60 degrees F and above and

3/8 inch at ambient temperatures below 60 degrees F.

3. Gaps between boards and adjacent construction: 1/4 inch at ambient temperatures of 60 degrees F and above and 1/2 inch at ambient temperatures below 60 degrees F.

559.09 Measurement. Measure the 599 items listed in the bid schedule according to

Subsection 109.02. Measure Composite Wood Decking by the Linear Foot of board.

559.10 Payment. The accepted quantities will be paid at the contract price per unit of measurement for the Section 599 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this section.

Texas Falls Recreation Area Page 28 of 33 Reconstruction Project

633 - Permanent Traffic Control

633.02_nat_us_03_03_2005

633.02 Material.

Add the following subsections

Protective Overlay Film 718.02

Edge Film 718.02

633.03_nat_us_03_03_2005

633.03 General.

Delete the subsection and add the following:

Furnish traffic control devices and guide signs according to the MUTCD, approved USDA-FS and state supplements, the current edition of USDA-FS EM-7100-15 Sign and Poster Guidelines for the Forest Service, and Standard Highway Signs published by FHWA. Submit the sign list for approval before ordering.

633.05_nat_us_03_03_2005

633.05 Panels.

Add the following:

Apply protective overlay film and top edge film as required and according to with manufacturer’s recommendations.

Delete the sentence: “Use antitheft fasteners where possible” in the fifth paragraph and replace it with the following: “For each sign panel use at least one antitheft fastener.”

634 - Permanent Pavement Marking

634.03_nat_us_03_03_2005

634.03 General.

Add the following:

On single lane roads apply pavement markings according to the manufacturer’s recommendations and in a direction consistent with safe application.

Texas Falls Recreation Area Page 29 of 33 Reconstruction Project

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:

Texas Falls Recreation Area Page 30 of 33 Reconstruction Project

• 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.

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.

Texas Falls Recreation Area Page 31 of 33 Reconstruction Project

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.

712 - Joint Material

712.01_nat_us_03_02_2005

712.01 Sealants, Fillers, Seals, and Sleeves.

(a) Joint sealants and crack fillers.

(7) Low-Modulus Rubberized Asphalt. Conform to ASTM D 3405 and the following.

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Cone Penetration, 75 o F 100-150

Cone Penetration, -0 o F 25 minimum

Flow, 140 o F, 5h 3/8 in. maximum

Resilience 30-60%

Bond, -20 o F, 200% extension Pass 3 Cycles

Recommended Pour Temperature 380 o F

Safe Heating Temperature 410 o F

Asphalt Compatibility Pass

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.

718 - Traffic Signing and Marking Material

718.02_nat_us_03_02_2005

718.02 Reserved.

Replace this section with the following:

718.02 Protective Overlay Film and Edge Film.

Protective overlay film will be a high performance flouropolymer film such as…