Attch04_Race_Culvert_233T-0.1_FSSS.pdf

FOREST SERVICE

SUPPLEMENTAL SPECIFICATIONS

For

RACE CREEK CAMPGROUND

CULVERT REPLACEMENT

NO. 233T-0.1

DJ&A, P.C.

Engineers - Planners - Surveyors

3203 So. Russell St

Missoula, MT 59801

U.S.D.A. FOREST SERVICE

CLEARWATER–NEZ PERCE NATIONAL FOREST

March 2015

Table of Contents

Table of Contents

Preface

101 - Terms, Format, and Definitions

102 - Bid, Award, and Execution of Contract

103 - Scope of Work

104 - Control of Work

105 - Control of Material

106 - Acceptance of Work

107 - Legal Relations and Responsibility to the Public

108 - Prosecution and Progress

109 - Measurement and Payment

151 - Mobilization

152 – Construction Survey and Staking

153 – Contractor Quality Control

155 - Schedules for Construction Contracts

156 - Public Traffic

157 - Soil Erosion Control

203 - Removal of Structures and Obstructions

208 - Structure Excavation and Backfill for Selected Major Structures

251 - Riprap

272 - Geocell Abutment Stabilization

308 - Minor Crushed Aggregate

602 – Culverts and Drains

622 - Rental Equipment

625 – Turf Establishment

626 - Plants, Trees, Shrubs, Vines, and Groundcovers

705 - Rock

706 – Concrete Pipe

736 - Geocell

Preface

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

101.01 Meaning of Terms

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

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 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.

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:

Figure 101-1—Illustration of road structure terms.

102 - Bid, Award, and Execution of Contract

102 Bid, Award, and Execution of Contract

Delete Section 102 in its entirety.

103 - Scope of Work

Deletions

Delete all but subsection 103.01 Intent of Contract.

The intent of the contract is to remove and replace an existing corrugated steel pipe on Race

Creek in the Rack Creek Campground on Road No. 233T in the Nez Perce – Clearwater National

Forests. The structure is located in the Moose Creek Ranger District in Section 12, T. 31 N., R.

9 E., Idaho County, Idaho.

This project includes removing and disposing an existing culvert, structure excavation, roadway embankment, backfilling, compacting, furnishing and installing a new precast reinforced concrete box culvert with precast concrete wingwalls, riprap, and hauling and placing crushed aggregate surfacing. The precise details of performing the work are not stipulated except as considered essential for the successful completion of the work. Furnish all labor, material, equipment, tools, transportation, and supplies necessary to complete the work according to the contract.

104 - Control of Work

Deletions

Delete Sections 104.01, 104.02, and 104.04.

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 Material Sources

Add the following before the first paragraph.

Sources have been designated for this project as follows:

Riprap Source – Government Furnished. The Government source for Riprap is located near O’Hara campground on Road 651approximately 0.3 miles from the Selway River in

Section 25 of T32N, R7E.

Material may require sorting and/or blending to meet the specified gradation.

Crushed Aggregate Source – Government Furnished. The Government source for

Crushed Aggregate is same pit as the riprap source described above.

Bedding Material – Contractor Furnished. There is no Government source for Bedding for this project.

Waste Site – Government Furnished. The waste site for excess and unsuitable material is the same pit as the riprap and crushed aggregate source described above. All other materials designated for removal and disposal must be disposed of away from Forest

Lands as per SPS Section 202.

Add the following to section (b) Contractor-located sources.

Prior to any pit development or use of materials, the Contractor shall provide to the CO a

State certification that the pit site is free of noxious weed as listed on the "All States

Noxious Weeds List”.

106 - Acceptance of Work

106.07 Delete

Delete subsection 106.07.

107 - Legal Relations and Responsibility to the Public

107.05 Responsibility for Damage Claims.

Delete the entire subsection.

107.06 Contractor’s Responsibility for Work.

Delete the following from the first paragraph.

“except as provided in Subsection 106.07”.

107.09 Legal Relationship of the Parties.

Delete the entire subsection.

108 - Prosecution and Progress

108 Delete.

Delete Section 108 in its entirety.

109 - Measurement and Payment

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 Measurement Terms and Definitions.

(b) Contract quantity.

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.

Add the following Subsection:

109.10 Methods of Measurement

One of the following methods of measurement for determining final payment is DESIGNATED

IN THE SCHEDULE OF ITEMS for each PAY ITEM:

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

(b) Contract Quantities (CQ).

(c) Lump Sum Quantities (LSQ). As defined in 109.02(h)

151 - Mobilization

151.01 Description

Add the following at the end of the last sentence:

Work also includes cleaning of all equipment used at the project site. Clean all construction equipment prior to entry on the project site. Remove all dirt, plant parts and material that may carry noxious weed seeds into the area. Construction equipment includes all construction heavy equipment, service vehicles, all highway-legal trucks (including dump trucks, cement trucks, water trucks, etc.), and trailers (including lowboys), except cars. Unless otherwise agreed, the

Contractor shall give the Forest Service at least 24 hours’ notice when equipment is ready for inspection. Only construction equipment inspected by the Forest Service will be allowed to operate within the project area. Treat subsequent move-ins of equipment the same as the initial move-in. Clean truck beds and dump boxes hauling to the project site prior to entering the work area.

152 – Construction Survey and Staking

152.01(a) Personnel.

Add the following:

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

153 – Contractor Quality Control

Add the following.

153.07. Project Submittals

At a minimum the contractor shall provide project submittals as shown on the below Submittal

Log. Submittal requirements are listed in the Standard Specifications, Supplemental

Specifications, and Plans.

Submittal Log

Log

No.

Incidental to

Pay

Item(s) Description of Submittal

Type of

Submittal

Requirement found in

Specification No.

/Drawings

Additional

Specification

References

1 151 Weed Free Material Source

Certification

Material

Certification FSSS 105.02(b)

2 151 Contractor Quality Control Plan Plan 153.02 552.09

3 151 Traffic Control Plan Plan FSSS 156.03

4 157 Dewatering and Soil Erosion and

Pollution Control Plan Plan FSSS 157.03

5 208 Excavation Plan Plan FSSS 208.04

6 272 Geocell Abutment Stabilization Material

Certification 272.06

106, FSSS 736,

Drawings

7 308 Bedding Material

Certification 308.09

106, 703, Drawings

8 602 Box Culvert Product

Certification

FSSS 602.03

106, Drawings

9 602 Culverts Shop Drawings Drawings

10 622 Equipment Rental Equipment

Approval

FSSS 622.02

11 625 Seed Mix Material

Certification 625.07

106, FSSS 625,

155 - Schedules for Construction Contracts

155 Delete.

Delete Section 155 in its entirety.

156 - Public Traffic

156.03 Accommodating Traffic During Work.

Delete the first paragraph and replace with the following:

Accommodate traffic according to the requirements set forth below, MUTCD, and Section 635.

Submit a traffic control plan for acceptance at least 14 days before intended use.

Add the following project specific requirements:

The contractor will be allowed to close Road No. 233T in the immediate vicinity of the culvert during construction.

Give the CO at least 21 days advance written notice prior to any road closure period to allow public notice of the closure by the Forest Service.

Delete the following from the last sentence of the last paragraph:

according to Subsection 106.07(b)

156.04 Maintaining Roadways During Work.

(a) Add the following:

A detour road will not be allowed at this site.

156.08 Traffic and Safety Supervisor.

Delete this subsection in its entirety.

157 - Soil Erosion Control

157.02 Materials

Add the following:

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

157.03 General.

Delete the first two paragraphs and replace with the following:

Submit a Dewatering and Soil Erosion and Pollution Control Plan detailing permanent and temporary control measures to minimize erosion and sedimentation during and after construction in accordance with the plans and storm water permits. Do not modify the type, size, or location of any control or practice without approval. Submit the erosion control plan proposal at least 7 days before operations begin to the CO for approval.

Reflect in the Dewatering and Soil Erosion and Pollution Control Plan special concerns and measures necessary to protect resources and government improvements. Include:

(a) The construction activities and sequence of implementation relating to specific erosion control measures.

(b) The location and type of permanent controls to be implemented during construction.

(c) The location and type of temporary controls to be implemented during construction.

(d) For work in stream channels with running water a detailed dewatering plan.

(e) For work in stream channels without flowing water describe level of ground and vegetative disturbance and measures to reduce potential sediment delivery.

(f) Description of the monitoring plan.

Add the following to the third paragraph:

Upon completion of construction at the site, remove all temporary erosion control devices, dewatering materials and equipment from Government property.

157.08 Water Crossings.

Add the following:

At any channel crossing where there is running water, dewater by rerouting water flow around the site before and during excavation and embankment operations.

203 - Removal of Structures and Obstructions

203.05 Disposing of Material.

Modify this subsection as follows:

(a) Remove from project. Add the following:

All materials designated for removal become the property of the Contractor and are to be disposed of by removing off of Forest Service Lands in accordance with all local, state and federal requirements.

(b) Burn. Delete this section.

(c) Bury. Delete this section.

Add the following:

(e) Placing Slash on Embankment Slopes. Place construction slash on completed embankment slopes or scatter as directed by the CO to reduce soil erosion. Place construction slash as flat as practicable on the completed slope. Priority for use of available slash is for: (1) through fills; (2) insides of curves; and (3) ditch relief outlets.

208 - Structure Excavation and Backfill for Selected Major Structures

208.02 Add the following:

Backfill material 704.03

208.04 General.

Add the following:

Use all suitable material in the construction of the roadway embankment and for structural backfill. Field drain and dry excessively wet material that is otherwise suitable for embankment before placement. Place and shape unsuitable or excess material at designated sites shown on the drawings or as directed by the CO.

Submit an Excavation Plan for approval prior to beginning the work. As a minimum, the

Excavation Plan must include: drawings and a written outline illustrating and describing the proposed excavation limits, methods, equipment to be used, location of stockpiles, and estimated quantities. The Excavation Plan must comply with all applicable OSHA requirements and list the soil type assumed.

208.10 Backfill.

Delete the first sentence and replace with the following:

Backfill with material meeting the requirements of Subsection 704.03, Backfill Material.

208.11 Compacting.

Delete this section and add the following:

Place backfill in horizontal layers not exceeding 12 inches in thickness prior to compaction.

Compact each layer with mechanical tampers until surface deformation is no longer visible.

Adjust the moisture content of the backfill material to a moisture content suitable for compaction.

208.12 Acceptance.

Delete reference to Table 208-1

Delete Table 208-1

251 - Riprap

251.01 Description

Delete the first sentence and add the following:

This work consists of furnishing, hauling, and placing of riprap for bank protection, slope protection, drainage structures, erosion control, and other features shown on the plans.

Add the following:

251.04a Rock Weirs.

Furnish riprap in accordance with FSSS 105 and as shown on the drawings. Place or rearrange individual rocks by mechanical methods to obtain a shape as shown on the drawings.

Fill all voids left during placement of rock weirs adjacent to the culvert with excess structural excavation material.

All weir locations must be approved by the CO prior to excavation or placement of rock.

251.07 Acceptance

Delete sampling and testing requirements of Table 251-1.

Delete the fourth sentence and add the following:

Structure excavation and backfill will be evaluated under section 208.

Delete Table 251-1.

272 - Geocell Abutment Stabilization

Description

272.01 This work consists of constructing geocell abutment stabilization at each abutment using a cellular confinement system such as Presto Geoweb Cellular Confinement System or Webtec

TerraCell in accordance with the plans and manufacturers recommendations.

Materials

272.02 Requirements. Ensure that material conforms to specifications in the following subsections:

Geocell 736

Construction Requirements

272.03 General. Perform the work specified in Section 208 or 209. Use ditches, grading or similar methods to prevent surface runoff that may occur during inclement weather from ponding in the foundation excavation.

272.04 Storage and Handling of Material. During shipment and storage, wrap geotextile materials in heavy-duty protective covering. Protect the material from mud, soil, dust, debris and sunlight prior to installation.

272.05 Geocell Installation. Furnish the CO with product literature and certification as required in Section 106.03 for review and approval 7 days prior to installation. When requested by the

CO, furnish a sample of the geocell from each lot for verification testing.

Place the geocell sections directly on the prepared subgrade. Have the surface approved by the

CO prior to placing geocell. Expand the geocell sections into position at the grades and lines as shown on the plans. Hold the expanded geocell sections with suitable “stretcher frames”, steel stakes driven inside selected outer cell walls, or other similar methods as allowed by the manufacturer prior to filling. Ensure that the individual cells have expanded to the minimum dimensions required by the manufacturer. If necessary field cut sections as per the manufacturer’s recommendations to the lines shown on the plans.

Connect geocell panels in accordance with the manufacturer’s recommendations.

272.06 Infill Placement. Place soil-aggregate mix backfill as specified in the drawings into the expanded cells with equipment appropriate for the site conditions such as a backhoe or a front-end loader. Do not drop infill material more than 3 feet to avoid damage or displacement of the cell walls.

Overfill the geocell cells and level to a minimum of 2 inches above the top of the cell walls. A front-end loader may be used to place the infill provided that it only traffics above geocell sections that have been filled and covered with the minimum 2 inches of additional material.

Compact the infill material with a vibratory plate compacter. Operate compaction equipment over the full width of the geocell. Make at least three complete passes or until visible deformation of the infill ceases. Grade the surface to be ½ inch above the top of the cells.

Ensure that the cell walls are not exposed after fine grading is completed.

Use the geocell manufacturer’s specific recommendations for backfilling if they are more stringent than stated above.

272.07 Acceptance. Material for geocell will be evaluated under Subsections 106.2 and 106.03.

Measurement

272.08 Method. Measure the items listed in the bid schedule according to Subsection 109.02 and the following.

Measure geocell by the square yard in place, exclusive of wastage.

Payment

272.09 Basis. The accepted quantities will be paid for at the contract price per unit of measurement for the Section 272 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

The cost for furnishing and placing soil-aggregate backfill mix for the geocell installation is incidental to this pay item and no separate payment will be made.

308 - Minor Crushed Aggregate

Delete section 308 in its entirety and replace with the following:

Description

308.01 This work consists of placing Government furnished aggregate or furnishing and placing crushed aggregate for bedding, backfill and roadway aggregate course.

Material

308.02 Conform to the following Subsections:

Crushed aggregate 703.06

Water 725.01

Construction Requirements

308.03 Preparing Surface. Prepare the roadway surface on which aggregate course is placed as shown on the plans.

308.04 Placing Crushed Aggregate.

(a) Roadway aggregate. Mix the aggregate and adjust the moisture content to obtain a uniform mixture with a moisture content suitable for compaction. Spread and shape the mixture on the prepared surface in a uniform layer.

Do not place the mixture in a layer exceeding 6 inches in compacted thickness. When more than one layer is necessary, compact each layer according to Subsection 308.05(a) before placing the next layer.

(b) Bedding and backfill aggregate. Place and shape the mixture in layers that, when compacted, do not exceed 6 inches in depth.

308.05 Compacting and Finishing Crushed Aggregate.

(a) Roadway aggregate. Compact using the methods below, specified in the Schedule of Items.

(1) Method 1. Operate equipment over the full width of spread aggregate.

(2) Method 2. Compact the aggregate by operating compaction equipment over the total width until visible deformation ceases. A minimum of three complete roller passes shall be made at a moisture content suitable for compaction.

(b) Bedding and backfill aggregate. Compact in 6 inch lifts by using a Forest Service approved mechanical compactor until no visible deformation is observed over the entire area of aggregate.

308.06 Acceptance. Crushed aggregate will be evaluated under Subsections 106.02 and 106.03.

Furnish a production certification including gradation and quality properties for each source.

Construction of roadway aggregate courses will be evaluated under Subsections 106.02 and

106.04. Method 2 compaction will be evaluated under Section 106.04.

Placement of bedding and backfill aggregate will be evaluated under Subsection 106.02 and

Section 209.

Preparation of the surfaces on which crushed aggregate is placed will be evaluated under Section

303 and 209 as applicable.

Measurement

308.07 Measure the Section 308 items listed in the bid schedule according to Subsection 109.02 and the following as applicable.

Measure crushed aggregate by the cubic yard in-place on the road.

Measure width horizontally to include the top of aggregate width including designed widenings.

Measure the length horizontally along the centerline of the roadway.

Payment

308.08 The accepted quantities will be paid at the contract price per unit of measurement for the

Section 308 pay item listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05.

602 – Culverts and Drains

602.03 General.

Delete the third paragraph and add the following:

Excavate and backfill according to Section 208.

Place bedding according to Section 209.09.

Add the following:

Precast reinforced concrete box sections must be manufactured by a plant with one of the following certifications:

• Precast / Prestressed Concrete Institute (PCI) o Bridge 2, Prestress Deck and Miscellaneous Bridge Products.

• National Precast Concrete Association (NPCA) o Precast and Prestressed

• American Concrete Pipe Association (ACPA) o QCast

Submit a copy of the transmittal letter of the latest PCI , NPCA, or ACPA inspection/certification with the shop drawings.

In lieu of the above certification, Contractor shall retain a professional engineer to provide quality assurance for the work by inspecting and certifying in writing the concrete members are constructed in accordance to the specification and shall include but not limited to:

a) Shop drawing review.

b) Concrete member dimensions.

c) Concrete mix design.

d) Aggregate sources and test results.

e) Steel reinforcing placement.

f) Concrete curing and strength test results.

g) Concrete material certifications.

h) Placement mixing, delivery and sampling.

Certification of the above shall be received by the CO prior to shipment and installation at the job site.

602.08 Acceptance.

Delete the third sentence and replace with the following:

Excavation and backfill will be evaluated under Section 208.

622 - Rental Equipment

622.02 Rental Equipment

Delete the first two sentences of the first paragraph and add the following:

Provide equipment of the type listed in the Schedule of Items. Provide equipment of at least the minimum size needed to efficiently perform the work. Submit the model number of the equipment to the CO for approval before delivery to the project site. Equipment shall be reasonably free of leaks and other mechanical deficiencies.

625 – Turf Establishment

625.07 Seeding.

The application of seed to campsite area and all areas disturbed within the construction site shall be within fourteen (14) days after the road has been constructed to final grade, unless otherwise agreed by the CO. Areas damaged by construction activities shall be reseeded within ten (10) days of the damage.

Application Methods for Seed: Apply seed by the Dry Method.

Add the following after subsection (b).

Seed Mix. Furnish the kinds of seed and the amounts to be applied in terms of pure live seed as follows:

Grass Species and

‘Variety’

Pounds of Pure Live Seed / Acre

(rounded to nearest pound)

Annual Rye

(Lolium multiflorum)

‘Garnet’ Mountain brome

(Bromus marginatus)

Blue wildrye

(Elymus glaucus)

‘Nezpurs’ Idaho fescue

(Festuca idahoensis)

Note : Minimum 90% Purity, 90% germination.

Pounds of Pure Live Seed / Acre

626 - Plants, Trees, Shrubs, Vines, and Groundcovers

626 Delete entire section and replace with the following:

Description

626.01 This work consists of furnishing or excavating on site, transporting and re-planting trees, shrubs, vines groundcovers, and other native plants with machinery.

Materials

626.02 Existing plant material will be made available within 500 feet of project site for re-planting on newly constructed embankment slopes, and stream channel banks. Do not excavate plant materials unless the Contractor’s operations will permit re-planting within 1 hour.

Construction Requirements

626.03 General. Do not plant in frozen ground, when snow covers the ground, or when the soil is over saturated, extremely dry, or is otherwise unsatisfactory for planting.

Plant clumps shall not be excavated from critical locations, riparian areas, along streams, areas that may be prone to future erosion, or as determined by the CO. When excavating plants contractor shall leave minimum spacing of 10’ to 20’ between removals. Excavated plant areas shall have holes refilled with good quality native material. Pack soil firmly into hole.

The excavated plant shall have the entire root system, and native dirt clump, including duff layer to establish a healthy growing condition. Plants shall be healthy,and growing vigorously.

Loosen soil at the sidewalls and bottom of plant pit to a sufficient depth before setting the plant.

Remove all weeds, roots and other unsuitable material from the planting site. Remove air pockets from around the root mass when planting. Spacing of clump plantings shall be shown on the drawings or determined by the CO.

Keep all plant material moist and exercise care to prevent damage to bark, branches, and root systems. Employ all necessary means to preserve the plants in a healthy growing condition during plant establishment period.

626.04 Acceptance. Planting of trees, shrubs, and other native plants will be evaluated under

Subsections 106.02 and 106.04.

Measurement

626.05 Measure the Section 626 items listed in the bid schedule according to Subsection 109.02.

Payment

626.06 The accepted quantities will paid at the contract price per unit of measurement for section 626 pay item listed in the bid schedule. Payment will be full compensation for the work prescribed in this section. See Subsection 109.05

705 - Rock

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

706 – Concrete Pipe

706.07 Precast Reinforced Concrete Box Sections.

Delete the entire subsection and replace with the following:

Conform to ASTM C1577. Meet the design requirements for AASHTO, Load and Resistance

Factor Design (LRFD) Bridge Design Specifications with HL-93 live loading. Clearly mark the following information on the inner surface of each box section by indentation, waterproof paint or other approved means:

(a) Box span and rise;

(b) Date of manufacture;

(c) Name of manufacturer;

(d) Submittal number; and

(e) Date certified by manufacturer.

736 - Geocell

736.01 Geocell.

Furnish geocell material consisting of sheet strips fabricated from high-density polyethylene

(H.D.P.E.), connected in series at off-set, full-depth ultrasonic seams aligned perpendicular to the longitudinal axis of the strips. When expanded, the interconnected strips form the walls of a flexible, three-dimensional cellular confinement structure into which the specified infill material is placed.

736.02 Requirements. Furnish geocells consisting of polyethylene material treated to resist ultraviolet degradation and conforming to the requirements shown in table 736-1.

Table 736-1 – requirements for geocells.

Density ASTM D 1505 0.935 to 0.965 g/cm (58.4 to 60.2 pounds per cubic foot).

Environmental

Stress Crack

Resistance

ASTM D 1693 3000 hour

Strip Sheet

Thickness

ASTM D 5199 1.27 mm (50 mil), minus 5 percent, plus 10 percent.

Determine thickness in the flat before any surface texturing or other surface disruption.

Short-term peel strength

U.S. Army Corps of Engineers

Technical Report GL-86-19, Appendix A

2000 N (450 pound) minimum for

203 mm (8.0 inch) depth cell

Seam Hang Strength 101.6 mm (4”) weld joint supporting load of 72.5 kg (160 pounds) or

101.6 mm (4”) weld joint supporting load of 72.5 kg (160 pounds) while undergoing temperature change from 23 O C to 54 O

C (74 O

F to 130 O

F) on 1 hour cycles.

30 days minimum

7 days minimum