Specifications priest Lake Bridges 2010.doc

PRIEST LAKE BRIDGES – 2010

(Consalus Creek Bridge, Granite Creek Bridge & Fedar Creek Bridge)

FOREST SERVICE SPECIAL PROJECT SPECIFICATIONS

Section 101 - Abbreviations, Acronyms, & Terms

101.01 Terms, Organizations, & Standards.

(a) Acronyms. Add the following:

BMP

Best Management Practice

EPA

Environmental Protection Association

FPL

Forest Products Laboratory

ICRI

International Concrete Repair Institute

SSPC

Steel Structures Painting Council

WCLIB

West Coast Lumber Inspection Bureau

WWPA

Western Wood Products Association

USN

United States Navy”

101.02 – Abbreviations

Delete in its entirety and substitute the following:

And

AC

Acre

AGG …………………………Aggregate

AL.

Aluminum

ASP

Asphalt

AQ……………………………Actual Quantities

AVAIL

Available

BARR

Barrier

BKN

Broken

BST

Bituminous Surface Treatment

CATTLEGD

Cattle guard

CLEAR (CLG)

Clearing

CLEAR/GRUB

Clearing & Grubbing

CMP

Corrugated Metal Pipe

CMPA………………………..Corrugated Metal Pipe Arch

COMP

Compaction

CO……………………………Contracting Officer

CONC

Concrete

CONST

Construction (Construct) CSP…………………………..Corrugated Steel Pipe

CTD

Coated (Coating)

CUSH

Cushion

CY (CU YD)

Cubic Yard

CY MI (CYM)

Cubic Yard Mile

DIA

Diameter

DL

Double Lane

DQ……………………………Design Quantities D/S…………………………...Downstream

DWGS

Drawings

EA

Each

EMB

Embankment

EXC

Excavation F&I Furnish & Install

FDN

Foundation

FT

Foot (Feet)

FUNC

Function

GAL

Gallon

GR.

Grade

GRUB

Grubbing

HDPE

High Density Polyethylene

96 SPS 101-1 (12/01/09)

Ha… .…………………… Hectare HOR………………………….Horizontal

HR

Hour

HT

Height I Install

IN

Inches

INCL

Including (Includes)

IND

Individual

JCT

Junction

Kg ……………………………Kilogram

Kl..……………………………Kiloliter

Kl km...…………………….…Kiloliter Kilometer L Logs l ……………………………...Liter

L……………………………...Length

LBS

Pounds

LDG

Loading

LF (LIN FT)

Linear (lineal) Foot LS…………………………….Lump Sum

LSL…………………

Lower Specification Limit LSQ…………………………..Lump Sum Quantities

MAT'L

Material M Metal m……………… Meter mm……… Millimeter

MAX

Maximum

MBF

One Thousand Feet Board Measure

MGALS

One Thousand Gallons

MHD

Method

MI

Mile

MIN

Minimum

MISC

Miscellaneous

MP

Mile Post

MSF

One Thousand Square Feet

OTBC

Open Top Box Culvert

PI……………………………..Plasticity Index P M Placement Method

PVC

Polyvinyl chloride

RD

Road

RECOND

Reconditioning

RECONST

Reconstruction (Reconstruct)

REFL

Reflectorized

RT

Right

STMP (STP)

Stump(s)

SB

Self Balance

SEC

Section

SF

Square Foot (Feet)

SL

Single Lane

SLD

Solid

SQ……………………………Staked Quantities

ST

Slash Treatment

STA

Station (100 Feet)

STA YD

Station Yard

STL

Steel

STR (STRUC)

Structural

SY (SQ YD)

Square Yard

SZ

Size

T………………………… Ton (1,000 kg)

T km.…….

Ton Kilometer T&L Tops & Limbs

TBR

Timber

TH

Thickness

TM

Ton Mile

TV……………………………Target Value

TO

Turnout

TOL

Turnout Left

TOR

Turnout right

TRS

Trees

UOT

Utilization of Timber

U/S……………………………Upstream

USL…………………………..Upper Specification Limit

VERT

Vertical W Width W/ With W/O Without

X-SEC

Cross Section

YD

Yard”

96 SPS 101-2 (12/01/09)

Section 102 - Definitions Add the following:

"Noxious Weeds or Weeds. Any exotic plant species established or that may be introduced in the State which may render land unfit for agriculture, forestry, livestock, wildlife, or other beneficial uses and which is designated by the State's Department of Agriculture, or by the County's weed management district, or by other appropriate agencies having jurisdiction, or as listed on the current ‘All States Noxious Weed List.’

Shop Drawings. Incidental design sheets and/or drawings the Contractor is required to submit to the Forest Service. Shop drawings shall conform to the contract requirements, but they are not part of the contract drawings. They may be drawings, diagrams, schedules, performance charts, brochures, and similar data prepared by the Contractor, subcontractor, manufacturer, suppliers, or distributors that illustrate how specific portions of the work are to be fabricated or installed.

Weed Management District. A weed management district is any area of land identified for the purpose of weed management or control. Such an identified land area may be, but is not limited to one of the following: a project or job site, a County, two or more Counties, or a National Forest.

Engineer. The Contracting Officer’s Representative (COR) responsible for onsite administration of the contract.”

96 SPS 102-1 (12/01/09)

Section 103 – Intent of Contract Add the following:

“This project is for the construction of three bridges in the Priest Lake Ranger District on the Idaho Panhandle National Forests, Bonner County, Idaho.

CONSALUS CREEK BRIDGE: This site includes removing an existing corrugated steel culvert on Consalus Creek and replacing it with a new prestressed concrete single span bridge.

The work includes but is not limited to clearing and grubbing, erosion control measures, roadway and structural excavation, removing and disposing an existing pipe culvert, compaction, riprap, rock vanes roadway surfacing, furnishing and erecting prestressed concrete beams, placing cast-in-place concrete, minor equipment rental work, Contractor quality control (CQC) and all other incidental items necessary to complete the project in accordance with the plans and specifications.

In-stream work will only be allowed between July 15, 2010 and October 30, 2010 for the Consalus Creek Bridge without approval by the Contracting Officer. Approved BMP’s for sediment containment must be utilized through the entire reach of the construction site.

GRANITE CREEK BRIDGE: This site includes removing an existing two span treated timber bridge over Granite Creek and replacing it with a new prestressed concrete single span bridge.

The work includes but is not limited to clearing and grubbing, erosion control measures, roadway and structural excavation, removing and disposing an existing two span timber bridge, compaction, concrete grouted riprap, roadway surfacing, furnishing and erecting prestressed concrete beams, placing cast-in-place concrete, minor equipment rental work, Contractor quality control (CQC) and all other incidental items necessary to complete the project in accordance with the plans and specifications.

In-stream work will only be allowed between July 15, 2010 and September 1, 2010 for the Granite Creek Bridge without approval by the Contracting Officer. Approved BMP’s for sediment containment must be utilized through the entire reach of the construction site.

96 SPS 103-1 (12/01/09)

FEDAR CREEK BRIDGE: This site includes removing three existing steel culverts on Fedar Creek, and replacing them with a Government supplied prestressed concrete single span bridge constructed from stockpiled beams salvaged from the Lightning Creek Drainage in November 2009.

The work includes but is not limited to clearing and grubbing, erosion control measures, roadway and structural excavation, removing and disposing existing pipe culverts, compaction, riprap, rock vanes roadway surfacing, transporting and erecting Government furnished prestressed concrete beams, placing cast-in-place concrete, furnishing and erecting a steel curb system, minor equipment rental work, Contractor quality control (CQC) and all other incidental items necessary to complete the project in accordance with the plans and specifications.

In-stream work will only be allowed between July 15, 2010 and October 30, 2010 for the Fedar Creek Bridge without approval by the Contracting Officer. Approved BMP’s for sediment containment must be utilized through the entire reach of the construction site.”

96 SPS 103-2 (12/01/09)

Section 104 – Maintenance for Traffic

104.01 Roads to be Constructed

Delete the last two paragraphs of this subsection and add the following:

“The Contractor will be allowed to close the segment of Forest Development Road (FDR) No. 2730, FDR No. 638 and FDR No. 1347 affected by bridge and approach road construction activities to public traffic during construction as outlined below.

Consalus Creek Bridge: Forest Development Road No. 2730 may be closed to public traffic within the construction area during bridge construction work under this contract for one(1) closure period consisting of up to a thirty (30) consecutive day closure period. This thirty (30) day closure period will fall sometime between July 15th and October 30th of 2010.

Granite Creek Bridge: Forest Development Road No. 638 may be closed to public traffic within the construction area during bridge construction work under this contract for one(1) closure period consisting of up to a sixty (60) consecutive day closure period. This sixty (60) day closure period will fall sometime between July 15th and October 1st of 2010.

The Contractor will be allowed to construct a work bridge at the Granite Creek site only. The work bridge must be capable of carrying all anticipated construction loads and meet any O.S.H.A. regulations covering this work. The work bridge will not need to be designed for public traffic and is not required to meet design and safety requirements required when bridges are open to public use. The Contractor will be responsible to keep public traffic off of the temporary structure. Following completion of the project the Contractor must remove all temporary structures and approach fills. Re-shape temporary approaches and seed and mulch. Additional requirements are SHOWN ON THE DRAWINGS.

Fedar Creek Bridge: Forest Development Road No. 1347 may be closed to public traffic within the construction area during bridge construction work under this contract for one(1) closure period consisting of up to a sixty (60) consecutive day closure period. This sixty (60) day closure period will fall sometime between July 15th and October 30th of 2010.

Contractor shall provide the Contracting Officer at least 14 days advanced written notice prior to any road closure period to provide public and Forest Service administrative user’s notice of the approved closure period. The contractor shall be responsible for providing, maintaining and removal of all barricades and signs required for the road closure.

96 SPS 104-1 (12/01/09)

At the contractor’s written request, traffic delays, as outlined below, will be approved should the project work necessitate short traffic delays outside the approved closure periods.

Time Periods Maximum Delays

Monday – Friday (8:00 a.m. – 4:00 p.m.) ------------------------ 60 Minutes

Monday – Friday (4:00 p.m. – 8:00 a.m.) ------------------------ Open to Traffic

Weekends – (Sat. & Sun) and Holidays -------------------------- Open to Traffic

Traffic delay periods (60 minutes) between 8:00 a.m. and 4:00 p.m. begin when the first traffic vehicle arrives at the closure site. This traffic delay period is the maximum delay traffic should experience within the entire construction area.

Other delay periods may be authorized upon receipt of a written approval from the Contracting Officer. Prior notification by the contractor is required for public notice of the contractor’s intent to delay traffic. The Contractor shall submit a written request outlining the traffic delays required at least 7 days prior to starting construction operation that necessitates the traffic delays. The contractor must open the bridge and road as rapidly as possible to allow passage of emergency vehicles.”

The following is added to this subsection:

“The Contractor shall be responsible for the safe passage of vehicle traffic over the bridge and through the construction site when the bridge is open to public traffic during construction and outside work hours.

Develop a construction sign plan that reflects the Contractor’s plan of operation and submit to the Contracting Officer for approval 14 days prior to commencement of on-site project work. Install construction signs prior to and consistent with the site work being performed. In addition to typical MUTCD construction zone signing and road closure devices (type III barricades), the contractor shall install public information signs on both sides of the closure area to notify the public of bridge construction and road closures ahead as follows:

Consalus Creek Bridge No. 2730-01.7:

· Junction of County Road No. 122W/FDR No. 312 and FDR No. 333

· Junction of FDR No. 2730 with FDR No. 1096

Granite Creek Bridge No 638-00.2:

· Junction of FDR No. 302 and FDR No. 638

· Junction of FDR No. 2512 and FDR No. 638

96 SPS 104-2 (12/01/09)

Fedar Creek Bridge No. 1347-02.2:

· Junction of FDR No. 302 and FDR No. 638

· Junction of FDR No. 2512 and FDR No. 638

Sample road closure sign follows:

104.02 Use of Roads by Contractor

The following is added to this subsection:

“Commensuate with use, the Contractor shall be responsible to any damage to roads under the jurisdiction of the Forest Service used by the Contractor as haul routes for delivery materials to the project site. Commenserate use road damage repairs will be the responsibility of the contactor.

During the final stages of the project, after the contractor has completed hauling all materials to the Fedar project site, FDR haul routes No. 638 and FDR haul route No. 1347 shall be final bladed from the bridge site to the junction with FDR No. 302 (approximately 3.2 miles). This final maintenance blading shall meet the requirements of Section 306 (scarification not required) and be paid for under Item 637(03) – Motor Grader.”

PAYMENT

Measurement

104.03 Method.

“No payment will be made for this item. Include all costs associated with erecting, maintaining and removing traffic control construction signing and optional work bridge in the unit price bid for Mobilization.”

96 SPS 104-3 (12/01/09)

Section 105 – Control of Materials

105.06 Material Sources

(a) Designated Sources.

Add the following:

“Riprap Source - Commercial Source: There are no designated Government sources for Item 251(01)A - Placed Riprap, Class 5, Item 251(14) - Concrete Grouted Riprap, Class 6 or Item 251(01)B -Placed Riprap, Class 5 under this contract.

Crushed Aggregate Surfacing Source - Commercial Source: There are no designated Government sources for Item 304(10)A - Crushed Aggregate Surfacing, Item 304(10)B - Crushed Aggregate Surfacing or Item 304(10)C - Crushed Aggregate Surfacing or under this contract.

Course Granular Backfill - Commercial Source: There are no designated Government sources for course granular backfill designated under Item 260(01)A - Geocell Abutment Stabilization, Item 260(01)B - Geocell Abutment Stabilization, Item 260(01)C - Geocell Abutment Stabilization or outlet ditch armoring at Fedar Creek under this contract.

Foundation Fill - Commercial Source: There are no designated Government sources for grade beam foundation material designated under Item 206(02) – Foundation Fill at Consalus Creek under this contract.

Rock Cross Vanes – Commercial Source: There are no designated Government sources for Item 648(01)A – Rock Cross Vane, or Item 648(01)B – Rock Cross Vane under this contract.

Borrow Source: No borrow material is anticipated under this Contract. Should borrow material be needed, it will be provided from Government source and paid for under Section 637 – Equipment Rental.

Waste Area – Government Provided. A waste area for excess and unsuitable material, and construction slash will be available for all three sites (Reference Cover Sheets for each bridge project for waste site locations).

96 SPS 105-1 (12/01/09)

Waste Area Location:

· Consalus Creek. The Government Pit located in Section 23, T.59N., R.5W. near Mile Post 1.5 on County Road 122W/FDR No. 312.

· Granite Creek. The Government Pit located on Road 638 at mile post 0.4, Section 34, T.62N., R. 5W.

· Fedar Creek. The Government Pit located on Road 638 at mile post 0.4, Section 34, T.62N., R.5W.”

(b) Contractor-Furnished Sources.

Add the following:

“Prior to any pit development or use of materials from contractor-furnished sources, have the pit site approved by the Contracting Officer that it is free of noxious weed as listed on the “All States Noxious Weeds List.”

96 SPS 105-2 (12/01/09)

Section 106 – Measurement & Payment

106.03 Units of Measurement

Delete this subsection and add the following:

“Forest Service Specifications for Construction of Roads and Bridges (Revised August 1996) are based on Modern Metric units of measurement. The dimensions and units of measure SHOWN ON THE DRAWINGS and used to develop SPECIAL PROJECT SPECIFICATIONS for this contract, utilize U.S. Standard English units of measure. All measurements referenced in the August 1996 Forest Service Standard Specifications (EM-7720-100) shall be converted to U.S. Standard English units of measure. Appendix A – Engineering Conversion Factors and Appendix B – SI (Modern Metric) Conversion Factors, are included on pages 611 – 614 of the Standard Specification Appendices to assist with any required conversions.

Work required by the contract will be paid based on the PAY UNIT (U.S. Standard English measure) as DESIGNATED IN THE SCHEDULE OF ITEMS.

Under each Specification Section with PAY ITEMS of work DESIGNATED IN THE SCHDULE OF ITEMS for measurement and payment under this contract, the last subsection “Payment - Basis”, shall have the following format:

Pay Item - Numbering system and work description to remain the same.

Pay Unit - Pay unit(s) DESIGNATED IN THE SCHEDULE OF ITEMS have been changed from metric to the corresponding unit of U.S.

Standard English measure.

Payment will be by units defined and determined according to U.S. Standard English measure and by the following:

(a) Cubic Yard in Place. Measure solid volumes by the average end area method as follows:

(1) Measure cross sections of the original ground and use with design or staked templates, or take other comparable measurements to determine the end area. Do not measure work outside of the established lines or slopes.

96 SPS 106-1 (12/01/09)

(2) If any portion of the work is acceptable, but is not completed to the established lines and slopes, remeasure cross sections or comparable measurements of that portion of the work. Deduct any quantity outside the designated or staked limits. Use these measurements to calculate new end areas.

(1) Compute the quantity using the average end areas multiplied by the horizontal distance along a centerline or reference line between the end areas. Deduct any quantity outside the designed or staked limits.

Where it is impractical to measure material by the average end area method, other approved methods involving three-dimensional measurements may be used.

Measure liquid volumes in accordance with SPS Subsection 106.03(h).

(b) Cubic Yard in the Hauling Vehicle. Measure the cubic yard volume in the hauling vehicle using three-dimensional measurements at the point of delivery. Use vehicles bearing a legible identification mark with the body shaped so the actual contents may be readily and accurately determined. Before use, mutually agree in writing upon the volume of material to be hauled by each vehicle. Vehicles carrying less than the agreed volume may be rejected or accepted at the reduced volume.

Level selected loads. If leveling reveals that the vehicle was hauling less than the approved volume, reduce the quantity of all material received since the last leveled load by the same ratio as the ratio of the current leveled load volume to the agreed volume. Payment will not be made for material in excess of the agreed volume.

Material measured in the hauling vehicle may be weighed and converted to cubic yards for payment purpose if the conversion factors are mutually agreed to in writing.

Compute quantity by using measurements of material in the hauling vehicles at the point of delivery. Load vehicles to at least their water-level capacity. Leveling of the loads may be required when vehicles arrive at the delivery point.

(c) Cubic Yard Mile. A combination of linear and volumetric measurement meaning the movement of a cubic yard of material one(1) mile.

(d) Hour. Measurement will be for the actual number of hours ordered and performed by the Contractor.

96 SPS 106-2 (12/01/09)

(e) Each. One complete unit, which may consist of one or more parts.

(f) Lump Sum. Do not measure directly. The bid amount is complete payment for all work described in the contract and necessary to complete the work for that item.

(g) MBF. One thousand feet board measure based on nominal widths, thickness, and extreme usable length of each piece of lumber or timber actually incorporated in the job. For glued laminate timber, 1,000 board feet based on actual width, thickness, and length of each piece actually incorporated in the job.

(h) Gallon. The quantity may be measured by any of the following methods:

a. Measured volume container.

b. Metered volume. Use an approved metering system.

c. Commercially packaged volumes.

(i) Station. One hundred linear feet measured horizontally.

(j) Station Yard. A combination of linear and volumetric measurement meaning the movement of a cubic yard of material one station.

(k) Square Yard. Measure on a plane parallel to the surface being measure or horizontal.

(l) Thousand Gallons Mile. A combination of linear and volumetric measurement meaning the movement of 1,000 gallons of material one(1) mile.

(h) Ton. Short ton consisting of 2,000 pounds. Use net certified scale weights based on certified volumes.

(m) Ton Mile. A combination of linear and weight measurement meaning the movement of one(1) ton of material one(1) mile.”

96 SPS 106-3 (12/01/09)

Section 160 - Quality Control & Quantity Measurement Construction

160.02 Quality Control and Quantity Measurement System

Under (a) Quality Control Plan, add the following:

"(3) Description of the testing facilities and information on when and where each of the required materials tests will be performed.

(4) Random sampling and/or measurement plan prepared in accordance with requirements in Table 160."

(5) A log of all samples that are taken by the Contractor shall be maintained for the duration of the contract, and provided to the Contracting Officer upon request. Test results on all samples shall be given directly to the Contracting Officer within 8 hours of test completion."

160.03 Sampling, Testing, Inspection, and Measurement of Quantities Add the following:

"Minimum sampling and testing FREQUENCY is defined in Table 160.

Sampling and testing by the contractor shall meet the applicable AASHTO and ASTM Standards.”

96 SPS 160-1 (12/01/09)

TABLE 160

SAMPLING, TESTING AND MEASUREMENT REQUIREMENTS

A soil type is defined such that all soil in the represented volume shall have the same group symbol in the Unified Soil Classification system (ASTM D 2487) and the percent passing the No. 4 sieve shall not vary more than 10 percent between samples.

Wherever a AASHTO T99 or T180 moisture density curve is required, gradation data will be provided as shown below. The moisture density sample shall maintain the same percentage of coarse material (passing 50 mm and retained on a number 4 sieve) as in the original field sample. Field density testing of soil will normally require the use of AASHTO T224, Coarse Particle Correction.

Field Sample

Moisture Density Test Material

Percent plus 19 mm

Percent plus No. 4

Percent 19 mm to No. 4 sieve

Percent minus No. 4 sieve

Where random sample or random measurement is specified, it shall be a stratified statistically random sample. Random numbers are to be determined by ASTM D3665 Section 5.1 thru 5.7, or a computer generated random number program approved by the Contracting Officer. The sampling must be stratified to eliminate the possibility of sample points being "clustered". Stratification is calculated by dividing the total quantity for the applicable bid item by the sample FREQUENCY. This process divides the total project quantity of one lot into sublots. The random number is used to obtain a random sampling point within each sublot. The contractor may terminate a lot, and start a new lot when approved by the Contracting Officer. Once a lot is terminated it may not be combined with any other lot. If material within a sublot fails to meet specification requirement, the Contracting Officer may allow the contractor to rework the sublot materials and resample at a different randomly selected location.

Key to symbols used in table:

CT: Sampling and testing by contractor's personnel identified by name on the approved contractor's Q/C plan. Interim approval of personnel submitted will be based on specified training or experience requirements. Final approval will be based on observation of work performance on the project.

PE: Sampling and testing under the direction of and certification by a registered engineer retained by the contractor and specifically identified on the approved contractor's Q/C plan.

FS: Sampling, testing, measuring and/or data to be furnished by the Forest Service.

96 SPS 160-2 (12/01/09)

Note: The minimum FREQUENCY shown in this table is for contractor Quality Control sampling and testing. The contractor can run additional samples over the minimum number specified in the table. These additional samples can be taken in any manner, at any time desired by the contractor. Quality assurance sampling and testing by the Forest Service may be done at any time or location.

SUBSECTION REFERENCE

Required Sampling, Testing and

Measurements Responsibility For

Sampling/Testing Minimum Frequency

203.16 Embankment Placement

Field Density

203.17 Construction Tolerances

Measurement of Construction Tolerances

CT/CT

For non-highway projects: 10 tests per campground loop, access road, bridge approach or administrative site (construction tolerance class A)

206.10 & 206.11 Backfill & Embankment for Structures

Field Density

96 SPS 160-3 (12/01/09)

SUBSECTION REFERENCE

Required Sampling, Testing and

Measurements Responsibility For

Sampling/Testing Minimum Frequency

251.02 Requirements (Riprap)

Gradation

304.03 Gradation

Gradation and percent fracture (Section 703.05)

Submit test results from commercial supplier. At the request of the Contracting Officer, provide a QA sample for Government testing.

304.10 Compaction

Field Density

CT/CT

Certify that pit run aggregate and crushed aggregate is at a uniform moisture content suitable for compaction and materials are compacted in accordance with Compaction Method B.

304.12 Thickness & Width Requirements

Measurements of Aggregate Thickness and Width

CT/CT

Random measurements: minimum of 10 per bridge approach.

96 SPS 160-4 (12/01/09)

SUBSECTION REFERENCE

Required Sampling, Testing and

Measurements Responsibility For

Sampling/Testing Minimum Frequency

552.03 Composition (Concrete Mix Design)

Concrete Mix Design & aggregate tests

Aggregate moisture content

552.10 Quality Control of Mix

Mixing

Delivery and Sampling- Acceptance Tests (concrete slump, air content, unit weight and test cylinders)

PE/PE

CT/CT

CT/CT

CT/CT

One mix design submittal for each concrete class, including all the required tests on mix and aggregate for each source

One test per day on fine and coarse aggregate

As required per Specification

One set of tests per truck.

Four acceptance test cylinders per truck (two QC & two QA- 28 day breaks). Contractor shall be responsible for any additional field cure test cylinders to determine concrete strengths for construction progress

552.10 Quality Control of Mix (cont.).

Testing (compressive strength)

Two remaining cylinders to be supplied to the Government for QA testing

96 SPS 160-5 (12/01/09)

Required Sampling, Testing and

Measurements Responsibility For

Sampling/Testing Minimum Frequency

553.03 Method Approval

Submittals and Inspection

(Submit shop drawings 21 days prior to starting prestressing and notify CO a minimum 10 days prior to fabrication)

553.05 Concrete

Concrete cylinder fabrication and testing

PE/PE

As required in specification

553A.02 Requirements Concrete Slump and air content

Concrete cylinder fabrication and testing weight and test cylinders)

PE/PE

PE/PE

As required in specification

As required per Specification

96 SPS 160-6 (12/01/09)

Section 170 – Construction Staking, L-Line

Description

170.01 Work.

Replace the last sentence of the first paragraph with the following:

“In addition, set grade-finishing stakes, stake major structures and the associated riprap locations.”

Survey Requirements

170.17 Staking Major Structures.

Add the following to paragraph (c):

“Consult with the Contracting Officer prior to staking final riprap locations.”

Measurement

170.21 Method.

Replace the first sentence of the last paragraph with the following:

“Include all work necessary to establish lines and grades for the construction of the structures, including staking the locations of all riprap in the pay item for Construction Staking.”

Payment

Add the following pay items:

“Pay Item

Pay Unit 170(07) Construction Staking; Structure Precision A, Centerline

L.S.”

Precision A, Slope Staking Precision B

96 SPS 170-1 (12/01/09)

Section 201 – Clearing & Grubbing

Construction

201.03 Utilization of Timber

Delete this section and add the following:

“Minor clearing required for this project does not include any merchantable timber.”

201.05 Slash Treatment.

Delete the first sentence of this section and add the following:

“Treat construction slash larger than 3 inches in diameter and 3 feet in length by (8) Decking Unmerchantable Material, (10) Removal and (11) Piling.”

Change the second paragraph to read:

"Small pieces of wood less than 3 inches in diameter and 3 feet in length may be scattered outside the roadway or clearing limits."

(b) Specific Methods.

(8) Decking Unmerchantable Material.

Delete this sentence and replace with the following:

“Remove or haul unmerchantable material to the Waste Site designated in Section 105 of these Special Project Specifications or as SHOWN ON THE DRAWINGS. Deck unmerchantable material at a location approved by the Contracting Officer.”

(10) Removal.

Delete this sentence and replace with the following:

“Remove or haul construction slash to the Waste Site designated in Section 105 of these Special Project Specifications or as SHOWN ON THE DRAWINGS. Pile construction slash, stumps or logs at a location approved by the Contracting Officer.”

96 SPS 201-1 (12/01/09)

Measurement

201.06 Method.

Add the following:

“No separate measurement will be made for transporting construction slash to the designated site. All labor, equipment and materials associated with this item will be considered incidental to other pay items shown on the SCHEDULE OF ITEMS.”

Payment

201.07 Basis.

“No separate measurement will be made for this item. All costs associated with this item will be considered incidental to other pay items shown on the SCHEDULE OF ITEMS.”

96 SPS 201-2 (12/01/09)

Section 202 – Removal of Structures and Obstructions Description

202.01 Work

Add the following:

“This work consists of the removal, salvage and disposal of the existing treated timber bridge at the Granite Creek crossing and the removal and disposal of existing corrugated steel pipe at the Consalus and Fedar Creek crossings as SHOWN ON THE DRAWINGS.”

Construction

202.02 Salvaging Material

Add the following:

“The Granite Creek treated timber bridge stringers will remain the property of the Government. Stockpile the salvaged bridge stringers from the Granite Creek Bridge at the Priest Lake Ranger Station. Remove all remnant sections of decking and all nails from the tops of the stringers. Furnish necessary equipment and materials to transport, unload and stockpile the stringers at the Ranger Station.”

202.03 Removing Material.

Delete the fourth paragraph and add the following:

“Remove structures and obstructions in the roadbed and stream channel in their entirety to include treated timber mud sills, steel anchor rods and treated timber dead men anchors.

202.04 Disposing of Material or Structures Not Designated for Salvage.

Delete the first sentence of this subsection and replace it with the following:

“Dispose of all timber elements of the existing Granite Creek Bridge, except the stringers, by Removal from the Project. Do not allow treated materials to fall into the stream during removal operations. Dispose of all steel culvert pipe by Removal from the Project.”

96 SPS 202-1 (12/01/09)

(a) Removal From Project.

Replace this paragraph with the following:

“All unsalvageable treated materials and steel culvert pipe designated for removal under this contract become the property of the Contractor. Dispose of all treated materials off of National Forest System Lands in an environmentally safe manner in accordance with all Local, State and Federal requirements.”

(b) Burning. Delete this subsection:

(c) Burying. Delete this subsection:

96 SPS 202-2 (12/01/09)

Section 203 – Excavation, Embankment, & Haul Description

203.01 Work.

Add the following:

“Excavate, haul and dispose of unsuitable material associated with the construction of stream channels.”

Construction

203.06 Utilization of Excavated Materials.

(a) Excess Excavation.

Delete the first sentence and replace with the following:

“Transport and deposit excess excavation at the designated waste sites as specified in Section 105 of these Special Project Specifications or as SHOWN ON THE DRAWINGS. Spread excess material and shape to drain as directed by the Contracting Officer.”

(d) Excavation of Unsuitable Material & Backfill.

Replace the first sentence of this section with the following:

“Transport and deposit unsuitable material at the designated waste sites as specified in Section 105 of these Special Project Specifications or as SHOWN ON THE DRAWINGS. Spread the material and shape to drain as directed by the Contracting Officer.”

203.08 Sloping, Shaping, & Finishing.

Under subsection (d) Finishing, delete the last sentence and add the following:

“(d) Finishing. Finish bridge roadbed to tolerance Class A as shown in Table 203-1. Transition the approach road into the new bridge superstructure to provide a safe, uniform transition for a minimum of 100 L.F., and provide the proper road surface elevation to achieve the designed road surface drainage.”

96 SPS 203-1 (12/01/09)

203.16 Embankment Placement

(b) Specific Methods

(3) Method 3 – Layer Placement (Roller compaction)

Delete the last two sentences of this paragraph and add the following:

“Under Subsection 206.11 (embankment for major structures), establish the compactive effort required by the control strip method. Construct a control strip at the beginning of work on each type of material to be compacted. Ensure that the material used in the construction of the control strip meets the specification requirements and proper moisture content for maximum compaction. Use compaction equipment in the construction of the control strip designed for this purpose until visual displacement ceases. Replace any compaction equipment that fails to provide adequate compaction. Correct or remove unacceptable control strips and replace them at the Contractor’s expense.

Begin compacting the control strip immediately after the course has been placed to the specified thickness. Ensure that compaction is continuous and uniform over the entire surface. Continue compaction of the control strip with a minimum of three passes or until no discernible increase in density can be obtained by additional compactive effort as determined by the Contracting Officer. Once the compactive effort has been established by the control strip method, apply this compaction process until soil type or other conditions change.”

Measurement

203.19 Method.

Add the following:

“No separate measurement will be made for approach road excavation and embankment beyond normal structural excavation limits or transporting, spreading, and shaping excess, or unsuitable excavated materials or for seeding and mulching the excess or unsuitable material after shaping. All labor, equipment and materials associated with these items will be considered incidental to other pay items shown on the SCHEDULE OF ITEMS.”

96 SPS 203-2 (12/01/09)

Payment

203.20 Basis.

Add the following:

“Pay Item

203(22) Stream Channel Excavation

Lump Sum”

96 SPS 203-3 (12/01/09)

Section 204 – Soil Erosion & Water Pollution Control

Description

204.01 Work

Add the following:

“This work also includes project BMP’s implemented by Contractor for sediment containment through the entire reach of the constructions site.”

Materials

204.02 Requirements.

Add the following:

“Provide straw for erosion and water pollution control from a certified noxious weed free source.”

Construction

204.03 Performance.

Delete the first sentence and replace it with the following:

“Prior to the start of construction, submit a written plan for review that provides permanent and temporary erosion control measures to minimize erosion and sedimentation during and after construction. Include methods to minimize disturbance to the stream, prevent runoff from the construction site entering directly into the stream, prevent the release of fuel and oil into the water and soil and to contain and control any spills that may occur. Do not begin work until the necessary controls for that particular phase of work have been implemented.

In-stream work will only be allowed between July 15th and September 1st of any construction year for the Granite Creek Bridge. In-stream work will only be allowed between July 15th and October 30th of any construction year for the Consalus and Fedar Creek Bridges. Approved BMP’s for sediment containment must be utilized through the entire reach of the construction site.”

96 SPS 204-1 (12/01/09)

Add the following to this subsection:

“Emergency Spill Kit. Keep sufficient quantities of absorbent materials on the project site to absorb accidental fuel, hydraulic oil, or other petroleum product spills. Use absorbent materials that are biodegradable, non-water absorbing and designed specifically for the types of spills associated with the Contractor’s operations.

Hazardous Material Clean-up Plan. Submit a plan of operation on how any contractor generated hazardous materials will be cleaned up and disposed of. Address all potential spills or other construction related hazardous materials.

Straw/Hay Bales. Contractor to stockpile five(5) straw/hay bales on each of the three bridge project sites for the discretionary use as directed by the Contracting Officer in addition to any bales or silt fence that the Contractor intends to incorporate into the project as a part of the permanent and temporary erosion control measures as required under this specification. These straw/hay bales are intended for unforeseen emergency use. As the straw bales are used from the stockpile, Contractor shall replace the used bales within 48 hours. Upon completion of the project, the straw/hay bales shall remain in place or removed as directed by the Contracting Officer. Removed bales and remaining stockpiled bales shall be uniformly spread over disturbed areas after seeding upon substantial completion of the project.”

Payment

204.15 Basis.

Add the following:

“Payment for straw bales, silt fence, dewatering, stream diversions or other BMP measures furnished and erected by the Contractor as a part of the Soil Erosion and Pollution Control Plan will be paid for under item 204(19) Soil Erosion and Pollution Control. Straw bales provided under Subsection 204.03 for discretionary use directed by the Contracting Officer will be considered incidental to Section 204.”

96 SPS 204-2 (12/01/09)

Section 206 - Structural Excavation for Major Structures Materials

206.02 Requirements.

Add the following:

“Material specified for Foundation Fill under Item 206(02) for the Consalus Creek Bridge grade beams will meet the requirements of Section 703.05, Table 703-2 - Grading A – Subbase crushed aggregate or a similar material approved by the Contracting Officer.”

Construction

206.04 General.

Delete the second to last paragraph of this subsection and replace with the following:

"Suitable material may be used 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. Dispose of unsuitable or excess material according to SPS Subsection 105.06, Subsection 203.06 or as SHOWN ON THE DRAWINGS.”

206.10 Backfill.

Replace the third paragraph with the following:

"Place backfill or embankment material on both abutments of a spill-through type of abutment so that not more than 2 feet of elevation difference exists between the backfill or embankment of the two abutments. No embankment or backfill shall be place higher than 1 foot below the top of the abutment grade beam until after the grout and mortar for the prestressed multi-beam girders have been placed and cured. Ensure that the moisture content of backfill material is suitable for attaining the required compaction.”

96 SPS 206-1 (12/01/09)

206.11 Embankment.

Delete the second sentence of this paragraph and replace with the following:

“Compact backfill in accordance with Subsection 203.16(b), method 3, except approved hand operated mechanical tampers may be used for the required compaction. Due to the importance of good compaction behind bridge abutments, the contractor must demonstrate for Contracting Officer approval, capabilities of compaction equipment, proper moisture content of backfill material and compaction effort (passes) to obtain the specified compaction under Method 3 – Layer Placement (roller compaction).”

Measurement

206.12 Method

Replace the second paragraph with the following:

“Measure all structural excavation by Lump Sum. Includes all roadway, bridge, culvert, riprap and channel excavation, backfill, removal of unsuitable and excess material, haul and disposal of material for this project not specifically identified in related sections and included in the SCHEDULE OF ITEMS.”

96 SPS 206-2 (12/01/09)

Section 251 - Riprap Description

251.01 Work

Add the following:

“Work under this section includes minor structural excavation, haul, supplying and pumping of concrete for grouted riprap, disposal of unsuitable material, temporary construction access, reshaping existing riprap and embankment required for placement of riprap.

Furnish rocks, excavate, place and construct rock vanes as SHOWN ON THE DRAWINGS.”

Materials:

251.02 Requirements.

“Structural Concrete …………………………………………552 Gradation requirements for Class 6 riprap when used for concrete grouted riprap sections has been modified under Special Project Specification 705.02, Table 705-1 to eliminate smaller rock gradation sizes and provide voids to facilitate grouting operations. Contractors should anticipate between 20-25% voids when computing concrete quantities for concrete grouted riprap.”

Construction

251.04 Placed Riprap.

Add the following to Subsection (a) Method A, Machined Placed:

“The minimum channel width as SHOWN ON THE DRAWINGS is a critical distance for construction control. The Contractor shall take the necessary measures to insure that the riprap is constructed to the designed dimensions and slope ratios to provide the designed stream width as SHOWN ON THE DRAWINGS to provide the desired Q2 channel widths.”

96 SPS 251-1 (12/01/09)

Add the following to Subsection (c) Method C, Rock Vanes:

“Furnish rocks meeting the dimensional requirements as SHOWN ON TH DRAWINGS and as directed by the Contracting Officer. Excavate and construct the rock vanes as SHOWN ON THE DRAWINGS or as directed by the Contracting Officer.”

Add the following Subsection:

“251.06A Concrete Grouted Riprap.

Concrete grouted riprap is rock placed on a prepared surface with the voids filled with class of concrete as DESIGNATED ON THE DRAWINGS AND SPECIAL PROJECT SPECIFICATIONS.

Place rock for concrete grouted riprap according to Subsection 251.04. Thoroughly moisten the rocks and wash any excess fines to the underside of the riprap. Place concrete only when the temperature is above 40° F and rising. Place the concrete by pumping in a manner to prevent segregation. Fill all voids without unseating the rocks. Provide sufficient hand-held internal concrete vibrators suitable for the conditions of concrete placement. Consolidate all concrete by mechanical vibration immediately after placement. Manipulate vibrators to thoroughly work the concrete into the voids between the rocks.

Prepare and submit a plan outlining methods for placing concrete underwater in the event that the toe keyway cannot be completely dewatered. Have the Plan reviewed by the Contracting Officer two weeks prior to placing concrete. Do not place concrete in running water.

Protect the concrete grouted riprap from freezing and keep it moist for 3 days after the work is completed.”

Payment

251.13 Basis.

Add the following:

"The cost of minor structural excavation, haul, disposal of excess or unsuitable material, temporary construction access, reshaping existing riprap, and embankment required for placement of riprap is incidental to this pay item and no separate payment will be made.”

96 SPS 251-2 (12/01/09)

Add the following pay item:

251 (14) Concrete Grouted Riprap

Cubic Yard”

96 SPS 251-3 (12/01/09)

Section 260 - Cellular Confinement System

Description

260.01 Work. Construct geocell abutment stabilization at each abutment using Presto Geoweb Cellular Confinement System, Webtec TerraCell, or approved equal in accordance with the plans and manufacturers recommendations.

Materials

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

Coarse Granular Backfill

703.03

Geocell

Geotextile, Type IV (A,B,C.D,E, or F)

714.01

Construction

260.03 General. Perform the work specified in Section 206. Use ditches, grading or similar methods to prevent surface runoff that may occur during inclement weather from ponding in the foundation excavation.

260.04 Geotextile Installation. Place the geotextile according to Section 221 or AS SHOWN ON THE DRAWINGS. Ensure that the surface upon which the geotextile is to be placed is uniform and is reasonably smooth and free of obstructions, depressions, and debris that could damage the geotextile . Have the surface approved by the Contracting Officer prior to placing geotextile.

Lay the geotextile without tension, stress, wrinkles or creases. Sew or overlap adjacent strips a minimum of 12” at joints. Insert securing pins through both strips of overlapped geotextile at minimum intervals of 3 feet, but no closer than 2 inches to each edge, to prevent the geotextile from being displaced.

Have the installed geotextile approved by the Contracting Officer prior to setting the geocells.

96 SPS 260-1 (12/01/09)

260.05 Geocell Installation. Place the geocell sections directly on the prepared subgrade. Expand the geocell sections into position at the grades and lines AS SHOWN ON THE DRAWINGS. 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 geocell manufacturer prior to filling. Ensure that the individual cells have been 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.

260.06 Infill Placement. Furnish the Contracting Officer with the manufacturer’s specific recommendations for backfilling prior to placement of the geocells.

Place coarse granular backfill meeting subsection 703.03 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 until visible deformation of the infill ceases. Make at least three complete passes. 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.

Measurement

260.07 Method. Use the method of measurement that is DESIGNATED IN THE SCHEDULE OF ITEMS.

Payment will be based on the contract unit price of geocell material placed and accepted. This will be exclusive of wastage and material placed outside the neat lines SHOWN ON THE DRAWINGS.

96 SPS 260-2 (12/01/09)

Payment

260.08 Basis. The accepted quantities will be paid for at the contract unit price for the PAY ITEM DESIGNATED IN THE SCHEDULE OF ITEMS.

The cost for furnishing and placing the Coarse Granular Backfill required for geocell infill is incidental to this pay item and no separate payment will be made.

The cost for furnishing and placing geotextile for the geocell installation is incidental to this pay item and no separate payment will be made.

Payment will be made under:

Pay Item

260(01) Geocell Abutment stabilization, __inch depth ………………… Square Yard

96 SPS 260-3 (12/01/09)

Section 304 - Aggregate Base or Surface Course Materials

304.03 Gradation.

Add the following:

“Crushed aggregate shall meet the requirements specified in Subsection 703.05, Table 703-3, Grading F or G for crushed aggregate surface courses or a similar gradation that meets the Idaho Department of Transportation or other Federal, State or local Government agency’s specifications and is approved by the Contracting Officer.”

96 SPS 304-1 (12/01/09)

Section 552 - Structural Concrete Description

552.01 Work.

Add the following to Table 552-1.

“Class

Minimum Maximum

Minimum of

Cement W/C

Air

Coarse

Concrete Content Ratio

Slump

Content Aggregate

B(AE)

0.58

2” – 4”

5.0

No. 24

P(AE)

0.44

0”- 4”

5.0

No. 67”

Construction

552.03 Composition (Concrete Mix Design).

(x) Change the last sentence of this subsection to:

"The maximum air content shall be 8 percent."

96 SPS…