Step 1 W9128F22B0002 Pipestem Dam PD07 specs.pdf

SPECIFICATIONS

(For Construction Contract)

95% Design Solicitation Number W9128F22B0002

Pipestem Spillway Modification Project

Pipestem Dam, ND

May 2022

US Army Corps of Engineers Omaha District

PROJECT TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

01 11 00 SUMMARY OF WORK

01 12 00 CONSTRUCTION GENERAL

01 22 00 MEASUREMENT AND PAYMENT

01 30 00.24 OTHER ADMINISTRATIVE AND SPECIAL REQUIREMENTS

01 31 00 DATA MANAGEMENT

01 32 01.00 10 PROJECT SCHEDULE

01 33 00 SUBMITTAL PROCEDURES

01 35 26 GOVERNMENTAL SAFETY REQUIREMENTS

01 41 26.06 24 (NORTH DAKOTA) NPDES PERMIT REQUIREMENTS FOR STORM WATER

DISCHARGES FROM CONSTRUCTION SITES

01 45 00.00 10 QUALITY CONTROL

01 45 00.15 10 RESIDENT MANAGEMENT SYSTEM CONTRACTOR MODE (RMS CM)

01 57 20.00 10 ENVIRONMENTAL PROTECTION

01 57 23 TEMPORARY STORM WATER POLLUTION CONTROL

01 62 35 RECYCLED / RECOVERED MATERIALS

01 74 19 CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL

01 78 36.00 24 WARRANTY OF CONSTRUCTION

01 78 39.00 24 AS-BUILT DRAWINGS

DIVISION 03 - CONCRETE

03 30 00 CAST-IN-PLACE CONCRETE

03 36 10 SOIL CEMENT

03 37 23 ROLLER-COMPACTED CONCRETE FOR MASS CONCRETE CONSTRUCTION

03 42 13.00 10 PLANT-PRECAST CONCRETE PRODUCTS FOR BELOW GRADE

CONSTRUCTION

03 70 00 MASS CONCRETE SUPPLEMENTAL REQUIREMENTS

DIVISION 05 - METALS

05 50 14 STRUCTURAL METAL FABRICATIONS

05 52 00 METAL RAILINGS

DIVISION 31 - EARTHWORK

31 00 01 EARTHWORK

DIVISION 32 - EXTERIOR IMPROVEMENTS

32 15 00 AGGREGATE SURFACE COURSE

32 92 19 SEEDING

32 93 00 EXTERIOR PLANTS

DIVISION 33 - UTILITIES

33 00 00.10 INSTRUMENTATION

33 26 00 DEWATERING

33 46 16 DRAINAGE SYSTEM

DIVISION 35 - WATERWAY AND MARINE CONSTRUCTION

35 31 19.00 STONE (RIPRAP) PROTECTION

DIVISION 43 - PROCESS GAS AND LIQUID HANDLING, PURIFICATION, AND STORAGE

EQUIPMENT

43 21 29 FLOW MEASURING EQUIPMENT

-- End of Project Table of Contents --

Spillway Modification, Pipestem Dam, ND PD07

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 11 00

SUMMARY OF WORK

08/15

PART 1 GENERAL

1.1 SUBMITTALS

1.2 WORK COVERED BY CONTRACT DOCUMENTS

1.2.1 Project Description

1.2.2 Location

1.3 EXISTING WORK

1.4 LOCATION OF UNDERGROUND UTILITIES

1.4.1 Notification Prior to Excavation

PART 2 PRODUCTS

PART 3 EXECUTION

-- End of Section Table of Contents --

SECTION 01 11 00 Page 1

SECTION 01 11 00

SUMMARY OF WORK

08/15

PART 1 GENERAL

1.1 SUBMITTALS

Government approval is required for submittals with a "G" classification.

Submittals not having a "G" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government.] Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

1.2 WORK COVERED BY CONTRACT DOCUMENTS

1.2.1 Project Description

The work includes construction of a concrete terminal structure at the downstream end of the existing emergency spillway. The terminal structure consists of a stepped roller compacted spillway chute structure with an integrated reinforced concrete labyrinth crest control structure, reinforced concrete approach walls, and roller compacted stilling basin.

Additionally, the work includes construction of earthen training dikes with an internal soil cement key on each side of the spillway channel channel to direct flows to terminal structure. The work also includes excavation of the existing spillway channel and construction of earthen training dikes, on each side of the spillway channel. The training dike will include an internal soil cement key. The work will also include all other incidental related work as shown in the contract plans and specifications.

General order of work and construction sequencing requirements are described in Section 01 12 00, CONSTRUCTION GENERAL and shown in the contract drawings.

1.2.2 Location

The work is located at Pipestem Dam in Stutsman County, on Pipestem Creek, about four miles northwest of Jamestown, North Dakota. The exact location of the work is shown on the contract drawings.

1.3 EXISTING WORK

In addition to FAR 52.236-9 Protection of Existing Vegetation, Structures, Equipment, Utilities, and Improvements:

a. Remove or alter existing work in such a manner as to prevent injury or damage to any portions of the existing work which remain.

b. Repair or replace portions of existing work which have been altered during construction operations to match existing or adjoining work, as approved by the Contracting Officer. At the completion of operations, existing work must be in a condition equal to or better than that which existed before new work started.

SECTION 01 11 00 Page 2

1.4 LOCATION OF UNDERGROUND UTILITIES

Obtain digging permits prior to start of excavation, and comply with Installation requirements for locating and marking underground utilities.[ Contact local utility locating service a minimum of 48 hours prior to excavating, to mark utilities, and within sufficient time required if work occurs on a Monday or after a Holiday. Verify existing utility locations indicated on contract drawings, within area of work.

] 1.4.1 Notification Prior to Excavation

Notify the Contracting Officer at least 15 days prior planned excavation work and 48 hours prior to starting excavation work.

[][ PART 2 PRODUCTS

Not used.

PART 3 EXECUTION

Not used.

-- End of Section --

SECTION 01 11 00 Page 3

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 12 00

CONSTRUCTION GENERAL

04/07

PART 1 GENERAL

1.1 SCOPE

1.2 PROJECT WORK PLAN

1.2.1 General

1.2.2 Project Schedule

1.2.3 Order of Work and Construction Sequencing

1.2.3.1 General Order of Work

1.2.3.2 Specific Project Requirements

1.3 CONSTRUCTION FLOOD CONTINGENCY PLAN

1.3.1 General Information

1.3.2 Specific Requirements

1.4 CONSTRUCTION RIGHT-OF-WAY

1.5 PROTECTION OF EXISTING FACILITIES AND WORKS

1.5.1 Interruption of Electric Power

1.5.2 Flood Protection Works

1.5.3 Instrumentation, Subdrains and Manholes

1.5.4 Dust Control

1.6 DIVERSION AND CARE OF WATER

1.6.1 Payment

1.7 DRAINAGE

1.8 PROJECT SURVEY AND LAYOUT

1.9 DISPOSITION OF CONSTRUCTION FACILITIES

1.10 ACCESS ROADS AND HAUL ROADS

1.10.1 Access Roads

1.10.2 Haul Roads

1.10.3 Joint Use of Transportation Facilities

1.10.4 Waterway Crossings

1.10.5 Ramps

1.11 PUBLIC ROADS

1.11.1 Pipestem Dam Crest Road

1.11.2 Traffic Control Devices

1.11.3 Temporary Traffic Control (TTC)

1.11.4 Operations

1.11.4.1 Flaggers

1.11.5 Road Closure

1.11.6 State and Federal Highways

1.11.7 State and Local Public Roads

1.11.8 City Streets

1.11.9 Utility Lines

1.12 COOPERATION WITH OTHER CONTRACTORS

1.13 COORDINATION AND OUTAGES

1.14 SUBMITTALS

1.15 PROJECT SIGN

1.16 ACCOMMODATIONS FOR GOVERNMENT PERSONNEL

1.17 TELEPHONE/INTERNET FOR CONTRACTOR TRAILERS

1.18 PORTABLE TOILETS

1.19 LABORATORY FACILITIES

SECTION 01 12 00 Page 1

1.20 FEDERAL HOLIDAYS AND WORKING HOURS

PART 2 NOT USED

PART 3 NOT USED

SECTION 01 12 00 Page 2

SECTION 01 12 00

CONSTRUCTION GENERAL

04/07

PART 1 GENERAL

Attachments: Standard Sign Detail

1.1 SCOPE

The work covered in this section is outlined as a statement of construction requirements common to all the work. Specific requirements for materials and installations are provided under the Technical Sections herewith. No claims for extras shall be made on account of items presumed to have been omitted from this section.

1.2 PROJECT WORK PLAN

1.2.1 General

The contractor must submit a Project Work Plan describing order of work and construction sequencing including schedule as specified in Section 01 32 01.00 10, PROJECT SCHEDULE no more than 60 days after receiving written notice to proceed. The Project Work Plan must describe project order of work and construction sequencing and must address order of work and construction sequencing for all major project features and construction stages as specified and provided in the contract drawings. The Project Work Plan must describe the order of work and construction sequencing to include but not limited to initial grading requirements, structural grading requirements, final grading requirements, dewatering, diversion and care of water. The Project Work Plan will not alleviate the contractor from preparing and submitting all other required detailed work plans as specified in the contract technical specifications.

1.2.2 Project Schedule

Project schedule for order of work and construction sequencing must be as specified in Section 01 32 01.00 10, PROJECT SCHEDULE.

1.2.3 Order of Work and Construction Sequencing

Order of work and construction sequencing must conform to the contract the requirements provided below, the contract drawings and all other specifications.

1.2.3.1 General Order of Work

The Contractor must complete all initial grading and final structural features listed below or as indiicated by the contracting officer prior to excavating the spillway channel no-excavation area as shown on the contract drawings.

a. Initial dike earthwork and soil cement keys.

b. Initial spillway coulee earthwork.

c. Final approach walls and slab construction.

d. Final Labyrinth weir and weir wall construction.

SECTION 01 12 00 Page 3

e. Final stepped chute structure and chute walls.

f. Final stilling basin, end sill and stilling basin walls.

g. Final downstream reinforced concrete cutoff wall.

h. Final downstream riprap, spalls and bedding.

i. Any other features as directed by the COR.

1.2.3.2 Specific Project Requirements

1. Contractor must limit initial excavation for the terminal structure to elevation 1430.0 LPD. and above during the first construction season as provided in the contract drawings.

2. Contractor must complete full cofferdam construction prior to excavating terminal structure foundation below elevation 1430.0 LPD.

3. Excavation, soil cement placement and backfill for the training dike soil cement keys must begin at the upstream end of training dike and progress downstream. Training dike and key construction must proceed such that no more than a 400 feet reach remains open at any one time. Each 400 foot reach of training dike excavations with embedded soil cement keys must be backfilled to the original ground surface or as directed by the Contracting Officer.

4. Fill areas (right abutment coulee, upstream blanket extension & upstream positive drainage) as shown on the contract drawings may be completed at any time during construction subject to the following condition: the contractor must demonstrate sufficient quantity and types of fill material (cohesive, drainage sand and soil cement sand) are available to complete all other required work.

1.3 CONSTRUCTION FLOOD CONTINGENCY PLAN

1.3.1 General Information

The elevation of the Pipestem reservoir will vary during the construction contract depending on basin inflows and outlet works discharges. The top of the conservation pool is 1,442.0 feet Local Project Datum (LPD). The existing spillway crest elevation is 1496.3 feet LPD. For the existing spillway condition, the spillway begins to flow when the reservoir exceeds the crest elevation (1496.3 LPD). As shown in the contract drawings, the planned excavation in the spillway channel is generally limited to elevation 1486.0 feet LPD; however, some earthwork will occur as low as elevation 1442.0 feet LPD, along the spillway upstream blanket extension shown in the contract drawings. If the reservoir rises to elevation 1442.0 feet LPD or above, the limits of the work will be 2 feet above the reservoir in this area at the time of the earthwork.

Reservoir elevations and corresponding estimated annual exceedance probabilities are provided in the table below.

Table 1-1: Estimated Annual Exceedance Probabilities

Reservoir Elevation Estimated Annual Exceedance Probability

1486 10% or 1 in 10 years

SECTION 01 12 00 Page 4

Reservoir Elevation Estimated Annual Exceedance Probability

1488 5% or 1 in 20 years

1493.6 (Spillway Crest) 1.67% or 1 in 60 years

A cofferdam along Pipestem Creek, as shown in the drawings, will provide protection of up to 1,400 cfs from Pipestem Dam outlet works releases.

From the July 2014 Pipestem Water Control Manual, the Water Control Plan from Chapter 7 is summarized in the table below. During a high flow year, the combined releases from both Jamestown and Pipestem should not exceed 1,800 cfs. The dams are regulated together to ensure downstream evacuation of their exclusive flood control storage can occur with the least amount of downstream damages. Releases from Pipestem on typical low flow years begin June 1st, once the Jamestown Reservoir has evacuated its exclusive flood control volume, and releases continue until Sep 1st. The intent of the releases is to get the Pipestem pool elevation to 1442.5ft LPD by Sep 1st.

Table 1-2: Pipestem Water Control Plan Summary

Type of

Flow Year

Forcasted Calendar

Year Inflow Volume

Typical Peak Annual Reservoir Levels

Normal Maximum Release Normal

Maximum Combined Release

(cfs)

Jamestown Pool Level

(feet NGVD29)

Pipestem Pool Level (feet LPD)

Jamestown Reservoir

(cfs)

Pipestem Reservoir

(cfs)

High >160,000 Above 1445.4 Above 1489.0 1,200 - 1,800 1,200 - 1,800

1,800

High >160,000 1440 - 1445.4 1478.2 - 1489.0

750 - 1,200 750 - 1,200 750 - 1,800

High >160,000 Below 1440.0 1478.2 - 1489.0

450 - 750 750 - 1,200 750 - 1,200

Medium 160,000- 90,000

Below 1440.0 Below 1478.2 450 450 450 - 750

Low 90,000 - 0 Below 1433.0 Below 1466.0 200 120 200

The discharge versus elevation curve estimated at the cofferdam location that would be impacted by outlet works releases is shown in the below table

Table 1-3: Discharge versus Water Elevation at the Coffer Dam

Outlet Works Discharge (cfs)

Elevation atCofferdam (feet LPD)

20 1403.2

SECTION 01 12 00 Page 5

Outlet Works Discharge (cfs)

Elevation atCofferdam (feet LPD)

40 1403.5

60 1403.8

80 1403.9

100 1404.1

200 1405.1

400 1406.8

800 1409.6

1200 1411.9

1400 1413.4

1800 1416.6

2300 1421.4

2500 1423.5

3000 1426.7

The Contractor will be responsible for keeping apprised of weather conditions, inflow and outflow discharges, and reservoir elevation during the contract that may indicate a threat of flooding to work areas. The Contractor must promptly inform all subcontractors of the threat of a flooding emergency. The Contractor will be responsible maintaining close coordination with USACE pertaining to inflow, outflow discharges, reservoir elevation and the risk of flooding of work areas. Real-time and historical inflow, discharge and reservoir elevation data can be found at the web sites below. Historical inflow, outflow discharge and reservoir plots can be found on the For-Information-Only (FIO) contract drawings.

https://water.usace.army.mil/a2w/f?p=100:1:0::::P1_LINK:5138030-CWMS https://www.nwd-mr.usace.army.mil/rcc/programs/data/PIST

1.3.2 Specific Requirements

The Contractor will be responsible for ensuring that all materials, equipment and personnel are appropriately protected from potential flooding impacts. As part of the Pre-Construction submittals a Construction Flood Contingency Plan must be developed by the Contractor for approval by the Contracting Officer. This plan will be reviewed with the Contractor prior to work commencing at the site. The Contracting Officer may require that this plan be updated after work begins if site conditions change. The Construction Flood Contingency Plan must include, but is not limited to, the following information:

SECTION 01 12 00 Page 6

1. A daily log of existing and extended forecast for inflows, outflows, and reservoir elevations.

2. The method for determining existing and forecasted inflows, outflows, and reservoir elevations data (USACE websites, staff gages etc.).

3. Notification procedures, including emergency/weekend telephone numbers, for the construction foreman, on-site personnel, any subcontractors, and other off-site persons or agencies that require notification, including all pertinent information required for contact.

4. A description of all contingency procedures to ensure that, to the greatest extent possible, all construction materials and equipment which are not anchored, restrained or otherwise secure are removed from flood prone areas and/or protected from flood damage. The procedures identified must identify the plan of action for key construction features and activities. At a minimum, the plan must include actions necessary for predicted flooding during initial grading, structural excavation (chute structure and stilling basin) and final grading operations. Initial grading, structural excavation and final grading operations are outlined in the contract drawings and specifications.

5. All procedures required to address the site condition after a flood event, including identifying and mitigating any damages sustained.

6. Identification of all materials, including quantities, equipment, and personnel, that will be readily available, to implement the Flood Contingency Operation Plan.

All costs for preparation or updating the Construction Flood Contingency Plan, and coordination, monitoring, documentation, and implementation of the plan, including daily logs, will be considered incidental to the overall work and no separate payment will be made.

The Contracting Officer, in coordination with USACE Engineering and Construction personnel, will make the final decisions regarding when actions will be taken to protect the work and halt construction activities during high reservoirs and predicted spillway flow events. The Contractor may be compensated for the costs associated with work stoppages and lost work in the event the Contracting Officer stops work, if the Contracting Officer determines that there was no negligence on the Contractor's part.

1.4 CONSTRUCTION RIGHT-OF-WAY

The Contractor will be assigned working areas or working right-of-way limits for use in the prosecution of work under this contract, subject to the SECTION 00 72 00, GENERAL CONDITIONS (CONTRACT CLAUSES) clause entitled "Operations and Storage Areas."

1.5 PROTECTION OF EXISTING FACILITIES AND WORKS

The Contractor will be responsible for the protection of the work area from damage and upon completion of the work must leave existing works in a condition equal to that which existed when the work started. All work, storage of materials, and construction plant shall be kept within the limits of the areas assigned. Prior to construction operations, the Contractor must confer with the Contracting Officer's representative to determine the proximity of any possible under-ground obstructions, pipe or equipment which could be damaged as a result of construction operations.

SECTION 01 12 00 Page 7

Existing utility lines that are shown on the drawings or the locations are otherwise made known to the Contractor must be protected from damage, and if damaged, must be repaired by the Contractor at no additional expense to the Government. In the event that the Contractor damages any existing utility lines that are not shown or the locations of which have not been made known to the Contractor, the Contractor must immediately notify the Contracting Officer. The Contracting Officer will review the information and discuss with the Contractor how to proceed. The Contractor will be responsible for the protection of structures from any structural damage during the construction operations. Roads and surfaces must be protected from damage by the work or if damaged shall be repaired with equal materials at no additional expense to the Government. At all times the plant and work areas must be kept in a condition conducive to safety of workmen and the public and neat in appearance. Waste or surplus materials must not be allowed to accumulate in the construction areas.

1.5.1 Interruption of Electric Power

If it is necessary to cut off power in transmission lines that pass through construction areas, it shall be the Contractor's responsibility to make the necessary arrangements with the owner of the powerline, and the Contractor shall pay all costs therefore.

1.5.2 Flood Protection Works

In all cases where materials in the existing flood protection works are used or connected with the construction of new work under this contract, the work shall be so planned and executed that the new work shall be completed to provide protection equivalent to the existing protection as the existing protection is weakened or removed. The work must be performed in the order described in Paragragh 1.2, Order of Work. These operating restrictions shall be followed in order that the new work may be tied in, or connected promptly, by the Contractor, with the existing facilities so as to furnish a continuous service in an emergency. These ties or connections shall be made during periods of suspended construction operations and the Contractor shall leave incompleted pipe outlets and other structures in such conditions as to not interfere with the natural drainage from areas served by these pipes or structures.

1.5.3 Instrumentation, Subdrains and Manholes

The Contractor must protect from damage, unless otherwise designated by the Contracting Officer for Project drawings, all existing instrumentation consisting of piezometers, relief wells and casings, relief well outfalls, manholes, and risers in the area of work not scheduled for replacement.

The location of these features will be identified on the contract drawings. Any damage to these features must be repaired or replaced by the Contractor at no additional cost to the Government.

1.5.4 Dust Control

Unpaved areas subject to vehicle traffic must be stabilized by being kept wet, treated with a chemical dust suppressant, or covered. The application of chemical dust suppressants, such as calcium chloride, must be approved by the COR before application. The speed of any vehicles and equipment traveling across unpaved areas must be no more than 15 miles per hour, unless the road surface and surrounding area is sufficiently stabilized to prevent vehicles and equipment traveling more than 15 miles per hour from emitting dust exceeding Ringelmann 2 or visible emissions.

SECTION 01 12 00 Page 8

When wind speeds are high enough to result in dust exceeding Ringelman 2 or visible emissions, despite the application of dust control measures, all grading, hauling, and earthmoving operations must be suspended as directed by the COR. Dust control must also follow EM 385-1-1 guidelines.

1.6 DIVERSION AND CARE OF WATER

Full responsibility for the diversion and care of water from direct rainfall, surface runoff and sources outside of the construction area not including outlet work flows along Pipestem Creek or spillway flows shall be borne by the Contractor until completion of work under this contract.

The Contractor shall make the needed investigation and determination of existing and anticipated conditions concerning care of water. Plans for diversion and care of water during construction of the features shown on the contact drawings shall be submitted, within 10 calendar days after receipt of Notice to Proceed, for the approval of the Contracting Officer and shall show location, material and method for diversion and care of water. The area to be occupied by the work shall be unwatered and maintained in a "dry" condition, in accordance with this specification and Section 33 26 00, Dewatering, until the work has been completed and approved by the COR. Diversion of the water shall be accomplished without additional disturbance of in-place bank material beyond the limits necessary for construction of the features shown on the contract drawings.

1.6.1 Payment

Payment for diversion and care of water will be made at the contract lump sum price for "Diversion and Care of Water," which price shall constitute full compensation for all costs of diversion and care of water.

1.7 DRAINAGE

The Contractor shall provide and maintain ditches, dikes, and other facilities within and adjacent to the work areas, to divert water from surface and subsurface flow away from work in place or under construction by this and other contracts to prevent damage and interference. The basis for design, location, type and size of drainage facilities are subject to review and approval prior to construction.

1.8 PROJECT SURVEY AND LAYOUT

In addition to the requirements of FAR 52.236-17 Layout of Work, the Contractor shall provide a licensed land surveyor to check initial project control, and to provide and set hubs for project construction. The Contractor shall use (and reference in all as-built data) project stationing as described on the contract drawings. All survey data will be supplied to the COR in State Plane NAD 83 (North Dakota South), Local Project DATUM(LPD) and NAVD88 Datum in an XYZ format. The project location and date will be in the name of the file, such as Pipestem Dam and Reservoir, Spillway_Modification_DDMMYYYY. The land based data shall be provided in files along with a single combined file representing the digital terrain model. The submittal shall include a Metadata file that provides a summary of the data coordinate system and units, benchmarks used for base stations, equipment used, collection date, and field conditions on the date of the survey. In addition, a licensed land surveyor shall provide final project embankment survey (i.e. to include major breakpoints, spillway channel, Dikes, Chute Structure, Stilling Basin, weir, Walls and Slabs) prior to placement of surfacing for government review and approval. If applicable a licensed land surveyor

SECTION 01 12 00 Page 9 shall also provide, set and verify as built condition of major flood control structures/features; i.e. flood wall control. These surveys shall provide and verify both horizontal and vertical project control. This survey shall be used for final as-built embankment profile and cross section, and major flood control structure records, and recorded on the as-built condition in accordance with Section, As-Built Drawings.

The Contractor may utilize their own quality control personnel to provide interim surveys for quantity determination for payment in accordance with paragraph entitled Quantity Surveys (Apr 1984).

1.9 DISPOSITION OF CONSTRUCTION FACILITIES

All buildings and facilities constructed by the Contractor shall be maintained in a satisfactory condition with strict observance of the rules of sanitation, safety and order as may be established by the Contracting Officer. Prior to final payment under the contract, all buildings and facilities constructed by the Contractor for the Contractor's use shall be removed from the site by the Contractor.

1.10 ACCESS ROADS AND HAUL ROADS

The contractor must install lockable gates at project access roads as directed by the contracting officer. All work to install lockable gates will be paid for under "All Remaining Work" and is considered incidental to the project.

1.10.1 Access Roads

Access roads as required for the prosecution of the work shall be maintained (including sprinkling or application of a dust palliative at the discretion of the COR, safety personnel, and traffic control) within the work areas assigned to the Contractor. Consideration shall be given to the avoidance of interference with others, safety and frequency of traffic, subject to review and approval prior to construction. Access road areas shall be restored to their original or suitable condition upon completion of this contract. The Contractor shall be responsible for repair of damage to existing roads caused by the Contractor's operation.

All work to maintain access roads shall be paid for under "All Remaining Work" and is considered incidental to the project.

1.10.2 Haul Roads

The Contractor shall construct haul roads as may be necessary for the conduct of the work without additional cost to the Government. The Contractor shall arrange the hauling operations so as to cause a minimum interference with traffic and shall develop Temporary Traffic Control (TTC) plan(s) and furnish all necessary traffic control devices and personnel as required to avoid additional hazards to the public. The Contractor shall perform routine day and night inspections of TTC elements as required by MUTCD and maintain all furnished traffic control devices at their expense and without additional cost to the Government. Lines, grades and widths for haul roads, shall be selected to fulfill the requirements for safe and efficient hauling operations and shall be approved by the Contracting Officer prior to construction. Haul roads shall have ample width to provide safety. Preference shall be given to one-way haul roads when these are feasible. All roads shall be maintained in original as-built condition during all periods of their use.This includes grading and addition of aggregate surfacing at the discretion of the Contracting

SECTION 01 12 00 Page 10

Officer. Roads shall be sprinkled whenever, in the opinion of the Contracting Officer, control of dust is necessary to insure safe movements of construction traffic. The contractor shall apply a dust palliative at a minimum of monthly or as directed by the COR when utilizing county road 32nd street SE as a haul road. The type of dust palliative shall be subject to approval by the COR. When entering from the east the dust palliative shall be applied for the entire length of 32nd street SE from Highway 52 to the project access. When entering from the west, a dust palliative shall be applied 1/4 mile on each side of any residence. Upon completion of work under this contract, roads shall be disposed of as directed by the Contracting Officer. All traffic control devices, culverts, guards, fences and other improvements on roads constructed for the Contractor's convenience and operations shall be removed from the project site and shall remain property of the Contractor. Use and repair of existing roads and bridges shall be subject to the requirements of local authorities. Prior to start of hauling operations on public roads, the Contractor shall furnish written evidence to the Contracting Officer that an agreement has been consummated with State and County officials on the use of public roads and bridges. Such agreements shall clearly relieve the Government of any responsibility for damage resulting from hauling across or on these roads.All work to maintain haul roads shall be paid for under "All Remaining Work" and is considered incidental to the project.

1.10.3 Joint Use of Transportation Facilities

The Contractor may use jointly with Contractors and others, existing access and haul roads constructed by the Government or by others. Unless otherwise specifically authorized in writing, the Contractor will not be granted exclusive use of any access or haul road whether it be an existing road or one constructed by the Contractor. However, the use by others of roads constructed by or assigned to the Contractor primarily for the Contractor's use will be limited by the Contracting Officer to the minimum considered consistent with efficient prosecution of the work under this and other contracts in force. Maintenance of jointly used facilities shall be shared in proportion to use. In the event of a disagreement between this Contractor and others as to the use of any road, the decision of the Contracting Officer shall be final. The Contractor shall not obstruct any existing road on the land controlled by the Government.

1.10.4 Waterway Crossings

The Contractor shall construct approved crossings where hauling is to be done across waterways with adequate openings for drainage and streamflow.

Structures for crossings shall be safe for all operating equipment and vehicles and shall be adequate for drainage and flow of the waterway.

After haul for construction has ceased, the structures constructed by the Contractor shall be removed and disposed of as directed.

1.10.5 Ramps

Ramps shall be provided and maintained for access of hauling equipment into excavation and waste areas. Locations, grades and width are subject to review and approval by the Contracting Officer prior to construction.

SECTION 01 12 00 Page 11

1.11 PUBLIC ROADS

1.11.1 Pipestem Dam Crest Road

No contractor personnel and vehicles or construction equipment are allowed to access the Crest Road. The contractor must install a lockable gate(s) at the entrance to the project work site on west end of the dam crest road to prohibit contractor personnel and vehicles or construction equipment.

All work to install a lockable gate at this location will be paid for under "All Remaining Work" and is considered incidental to the project.

1.11.2 Traffic Control Devices

All traffic control devices (signs, arrow boards, barricades, lighting etc) by the Contractor, must conform with the U.S. Department of Transportation, Federal Highway Administration, Manual on Uniform Traffic Control Devices.

1.11.3 Temporary Traffic Control (TTC)

The Contractor shall be responsible for the safe control of traffic on all haul and access roads used primarily for the work under these specifications and at their crossings with roads used by others. The Contractor shall, at the Contractor's own expense, furnish all personnel, and traffic control devices necessary for the safe movement of all road users through or around Temporary Traffic Control zone. Traffic control plans, including a listing of equipment and its employment, shall be submitted for review and approval prior to construction.

1.11.4 Operations

When operations are being conducted near a U. S. or State Highway or when construction equipment is being used on or adjacent to such highway, the Contractor shall furnish all necessary traffic control devices and personnel to provide safe and effective movement of all road users through or around Temporary Traffic Control zone as required by MUTCD All required state and/or local permits shall be obtained at the Contractor's expense in advance and shall be provided to the COR. The highways and streets shall be kept open at all times.

1.11.4.1 Flaggers

The Contractor shall provide flaggers when:

a) Construction equipment and/or vehicles are blocking the roadway making it difficult for vehicles to pass or see or due to terrain.

b) One-way traffic is required thru a construction zone.

c) Trucks are pulling onto and/or off of a roadway or operating at a reduced speed causing a hazardous situation for drivers.

d) Anytime the Contractor feels that drivers are at risk due to Construction activity.

Flagger shall have all qualifications, high-visibility safety apparel, and appropriate hand-signaling devices in accordance with MUTCD requirements.

The flagger shall be properly trained as required by the state. The Contractor shall furnish all necessary traffic control devices to establish appropriate TTC zone when the Flagger Control is utilized.

SECTION 01 12 00 Page 12

1.11.5 Road Closure

At each location designated by the Contracting Officer and where safe operation requires the closing of roads, streets or other travel arteries leading to the work under this contract, the Contractor shall furnish all appropriate traffic control devices to provide safety for motorists, bicyclists, pedestrians, workers, enforcement/emergency officials, and equipment during construction as required by MUTCD. Arrangements for closure of roads, streets or other travel arteries shall be made by the Contractor with local State, County or City officials. The Contractor shall notify the appropriate official in writing at least ten (10) days in advance of the date desired to close a road to traffic and shall furnish a copy of the agreement and approved Temporary Traffic Control plans to the Contracting Officer prior to closure.

1.11.6 State and Federal Highways

Where the Contractor hauls across or on State or Federal highways, the Contractor shall enter into all agreements with the State Highway Commission and shall comply with any restrictions they may impose relative to load limits, care of traffic and cleanup. Such agreements shall clearly relieve the Government of any responsibility for damages resulting from hauling across or on State highways. Copies of such agreements shall be furnished to the Contracting Officer before the Contractor begins hauling on these highways.

1.11.7 State and Local Public Roads

(a) Load Limits:

The North Dakota Department of Transportation and local County Road Commissions restrict the load weights of haul vehicles using highways and county roads during the spring thaw period. The load restrictions are usually imposed from 1 April through June depending on actual weather conditions.

(b) Hauling Regulations:

Prior to start of hauling operations on public roads, the Contractor shall furnish evidence to the Contracting Officer that an agreement has been consummated with State and County officials on the use of public roads and bridges. Such agreements shall clearly relieve the Government of any responsibility for damage resulting from hauling across or on these roads.

1.11.8 City Streets

Where the Contractor intends to cross or to use city streets for haul roads the Contractor shall enter into an agreement with the City and shall comply with any restrictions the City may impose relative to load limits, care of traffic and cleanup. Such agreements shall clearly relieve the Government of any responsibility for damage resulting from hauling across or on these highways. A copy of all such agreements shall be furnished the Contracting Officer before the Contractor begins hauling in city streets.

1.11.9 Utility Lines

It shall be the responsibility and obligation of the Contractor to make all arrangements with the affected companies for the necessary moving and

SECTION 01 12 00 Page 13 alterations of utility lines and the continuation of service during construction as covered by the plans and specifications.

1.12 COOPERATION WITH OTHER CONTRACTORS

The Contractor shall cooperate and coordinate work with that of others (public and private) working in the area during the life of this contract. The Contractor shall coordinate work with others to avoid undue interference and shall conduct operations, other than approved required access, within the limits of the assigned construction area or construction right-of-way limits. The Contractor shall cooperate with others as necessary in the interest of timely completion of all work and in the event of disagreement the decision of the Contracting Officer shall be final.

1.13 COORDINATION AND OUTAGES

Contractor must provide written notification to the Contracting Officer two weeks prior to any utility outages that could affect the operations of Pipestem Dam including electrical, Internet, telephone, water and sewer.

1.14 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Proposed Methods of Operation; G-AO

Construction Right-of-Way

(Right-of-Way Agreements)

State and Federal Highways

(Agreements for hauling on highways)

State and Local Public Roads

(Agreements for hauling on roads)

Temporary Traffic Control (TTC); G, AO

Construction Flood Contingency Plan; G, AO

Project work Plan; G, DO

SD-02 Shop Drawings

Care of Water; G-AO

SECTION 01 12 00 Page 14

1.15 PROJECT SIGN

The Contractor shall provide a new project sign constructed in accordance with Standard Sign Detail bound herein. The sign shall be erected at the project site by the Contractor at the location determined by the Contracting Officer. The project sign shall remain the property of the Contractor and upon completion of the contract, work shall be removed from the premises by the Contractor. No separate payment will be made for the sign.

1.16 ACCOMMODATIONS FOR GOVERNMENT PERSONNEL

Contractor shall furnish the following trailers and other accommodations:

Minimum size 36'x60'(triple wide).

Two exit doors with stairs. Both sets of stairs shall also include an ADA compliant access ramp.

Two restrooms with ceramic flush toilets (male and female).

Running water into the restrooms with a kitchen style sink outside the restroom. A counter top minimum of 4' wide with under counter storage and cabinets above the counter shall be included for use by the government.

Refrigerator minimum size 20 cubic feet. Microwave minimum size 2 cubic feet. Microwave can be placed on the counter.

Minimum of 6 enclosed offices with office doors.

The Conference table, to consist of a minimum four (4) - 10 ft. x 3 ft.

portable tables, and at least 30 metal chairs. Chairs must be stackable.

Tables must be able to be collapsible. Contractor shall install a minimum 6 ft x 8 ft whiteboard mounted on one wall visible from the conference table.

The Contractor shall install/provide 24 cubicles with walls at least 6 ft.

in height. Each cubicle shall be equipped with a sliding door and desk across one side of the cubicle, with overhead storage, and under-cabinet lights, coat rack or wall mounted coat hanger inside the cubicle and a storage cabinet . Each cubicle shall have electrical outlets installed to support minimum 3 under cabinet monitors, computer, and electrical accessories. Each cubicle shall be a minimum size 6'x6'. Each office or cubicle shall have a roller chair (30).

Sufficient lighting shall be installed within the facility to minimize eye strain.

Contractor shall provide network ports and power supply for a government furnished copier/printer/scanner. Area for the copier/printer/scanner shall be located along one wall and protected by a cubicle wall for sound mitigation.

Each office or cubicle shall have a trash can (30). Extra trash cans shall be provided near each exit/entrance, rest rooms, and the kitchen area.

Contractor shall provide weekly building cleaning and garbage disposal throughout the contract. Floors will be mopped as appropriate.

SECTION 01 12 00 Page 15

Facility shall be heated and with air conditioning. Buildings may be occupied throughout the project, including the winter months.

Contractor shall provide snow removal around the trailers as needed and grass trimming within 100 ft. of the trailer.

Contractor shall provide an aggregate surfaced temporary road to access the trailers. Road shall be maintained as appropriate for grading and snow removal by the contractor.

Contractor shall provide a parking area, with sufficient aggregate, to park a minimum of 30 full size 4x4 vehicles.

Contractor shall provide black water removal as necessary. Contractor may install a septic system (which would have to be removed at the end of the project), or provide regular pumping service.

Trailers shall be installed a minimum of 45 days after NTP at a site approved by the COR on Pipestem Dam property. Service for all utilities shall be provided to the site within 60 days of NTP. The contractor shall provide all electricity for the Government Trailers. The contractor shall be responsible for all maintenance and charges for utilities, including phone, water, sewer, electrical and Internet for the duration of the contract.

The Contractor shall provide potable water from the water taps, or provide sufficient bottled water for government personnel consumption, throughout the project.

The Contractor shall install an Internet server line to the trailer. All cubicles and offices shall have a minimum one network port. Cost to provide Internet service shall, including installation and monthly fees, be borne by the contractor.

The Contractor shall provide and install a minimum 60 inch flat screen TV on one wall, visible from the conference table, with appropriate ports for connection of multi-media devices. TV for use as a presentation device from a network connected computer.

At the end of the project, and at the time directed by the COR, Contractor shall remove the facilities, roads, parking areas, and restore the entire area to vegetation as approved by the COR.

Facility locations and layout shall be approved by the COR. Facility provided by the Contractor shall meet all applicable building codes.

1.17 TELEPHONE/INTERNET FOR CONTRACTOR TRAILERS

The Contractor is responsible for arranging telephone/Internet service for the Contractor's trailers through a local telephone company and/or internet provider.

Provide the Government with, and utilize network infrastructure that can achieve speeds of at least 250 Kbps or the maximum commercially available in the area if 250 Kbps cannot be achieved."

SECTION 01 12 00 Page 16

1.18 PORTABLE TOILETS

Toilet facilities will not be available for Contractor's use. The Contractor shall provide and maintain portable toilets for use by the Contractor's staff and Government staff. Toilet(s) shall be placed at the location directed by the Contracting Officer. To prevent overturning by high winds, all portable toilets shall be anchored down.

1.19 LABORATORY FACILITIES

On Site Government and Contractor laboratory facilities must be as specified in SECTION 03 37 23, ROLLER-COMPACTED CONCRETE FOR MASS CONCRETE

CONSTRUCTION.

1.20 FEDERAL HOLIDAYS AND WORKING HOURS

The Contractor will have access to the facility for work during normal plant business hours from 0700 to 1700 hrs Monday through Friday, excluding any federally recognized holidays or observance days. The Contractor shall plan all work accordingly. These hours will be strictly adhered to unless the Government determines work outside this time is beneficial to the Government and is approved by the Contracting Officer

The following Federal legal holidays are observed by this installation:

New Year's Day 1 January Martin Luther King's Birthday Third Monday in January President's Day Third Monday in February Memorial Day Last Monday in May Juneteenth 19 June Independence Day 4 July Labor Day First Monday in September Columbus Day Second Monday in October Veterans Day 11 November Thanksgiving Day Fourth Thursday in November Christmas Day 25 December

If the wage determination has a discrepancy with the above list of observed Federal holidays, then the wage determination takes precedence.

PART 2 NOT USED

PART 3 NOT USED

-- End of Section --

SECTION 01 12 00 Page 17

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 22 00

MEASUREMENT AND PAYMENT

6/2000

PART 1 CLIN 0001 - MOBILIZATION AND DEMOBILIZATION

1.1 Work Included

1.2 Measurement

1.3 Payment

PART 2 CLIN 0002 - CLEARING AND GRUBBING

2.1 Work Included

2.2 Measurement

2.3 Payment

PART 3 CLIN 0003 - STRIPPING (AND TOPSOIL)

3.1 Work Included

3.2 Measurement

3.3 Payment

PART 4 CLIN 0004 - EXCAVATION & TRANSPORTATION OF SOILS

4.1 Work Included

4.2 Measurement

4.3 Payment

PART 5 CLIN 0005 - EXCAVATION & TRANSPORTATION OF SHALE BEDROCK

5.1 Work Included

5.2 Measurement

5.3 Payment

PART 6 CLIN 0006 - COMPACTED FILL

6.1 CLIN 0006AA - STANDARD COMPACTED COHESIVE FILL

6.1.1 Work Included

6.1.2 Measurement

6.1.3 Payment

6.2 CLIN0006AB - METHOD COMPACTED COHESIVE FILL

6.2.1 Work Included

6.2.2 Measurement

6.2.3 Payment

6.3 CLIN0006AC - METHOD COMPACTED RANDOM FILL

6.3.1 Work Included

6.3.2 Measurement

6.3.3 Payment

6.4 CLIN0006AD - METHOD COMPACTED ONSITE SAND FILL

6.4.1 Work Included

SECTION 01 22 00 Page 1

6.4.2 Measurement

6.4.3 Payment

6.5 CLIN0006AE - METHOD COMPACTED SPOIL MATERIAL

6.5.1 Work Included

6.5.2 Measurement

6.5.3 Payment

PART 7 CLIN 0007 - SURFACE SANDS

7.1 CLIN0007AA - SURFACE SANDS - EXCAVATION (FIRST 5,000 CUBIC YARDS)

7.1.1 Work Included

7.1.2 Measurement

7.1.3 Payment

7.2 CLIN0007AB - SURFACE SANDS - COMPACTED COHESIVE FILL (FIRST 5,000

CUBIC YARDS)

7.2.1 Work Included

7.2.2 Measurement

7.2.3 Payment

7.3 CLIN0007AC - SURFACE SANDS - EXCAVATION (OVER 5,000 CUBIC YARDS)

7.3.1 Work Included

7.3.2 Measurement

7.3.3 Payment

7.4 CLIN0007AD - SURFACE SANDS - COMPACTED COHESIVE FILL (OVER 5,000

CUBIC YARDS)

7.4.1 Work Included

7.4.2 Measurement

7.4.3 Payment

PART 8 CLIN 0008 - RIPRAP

8.1 Work Included

8.2 Measurement

8.3 Payment

PART 9 CLIN 0009 - SPALLS

9.1 Work Included

9.2 Measurement

9.3 Payment

PART 10 CLIN 0010 - BEDDING

10.1 Work Included

10.2 Measurement

10.3 Payment

PART 11 CLIN 0011 - GRAVEL SURFACING FOR ROADS

11.1 Work Included

11.2 Measurement

11.3 Payment

PART 12 CLIN 0012 - SEEDING

12.1 Work Included

12.2 Measurement

12.3 Payment

PART 13 RCC, WEIR AND SOIL CEMENT TEST SECTIONS

SECTION 01 22 00 Page 2

13.1 CLIN 0013AA - RCC TEST SECTION

13.1.1 Work Included

13.1.2 Measurement

13.1.3 Payment

13.2 CLIN 0013AB - LABYRINTH WEIR TEST SECTION

13.2.1 Work Included

13.2.2 Measurement

13.2.3 Payment

13.3 CLIN 0013AC - SOIL CEMENT TEST SECTION

13.3.1 Work Included

13.3.2 Measurement

13.3.3 Payment

PART 14 CLIN 0014 - ROLLER COMPACTED CONCRETE

14.1 CLIN 0014AA - MIX, CONVEY AND PLACE ROLLER-COMPACTED CONCRETE

14.1.1 Work Included

14.1.2 Measurement

14.1.3 Payment

14.2 CLIN 0014AB - COARSE AGGREGATE FOR RCC

14.2.1 Work Included

14.2.2 Measurement

14.2.3 Payment

14.3 CLIN 0014AC - FINE AGGREGATE FOR RCC

14.3.1 Work Included

14.3.2 Measurement

14.3.3 Payment

14.4 CLIN 0014AD - SUMP FINES FOR RCC (-#200 Material)

14.4.1 Work Included

14.4.2 Measurement

14.4.3 Payment

14.5 CLIN 0014AE - CEMENT FOR RCC

14.5.1 Work Included

14.5.2 Measurement

14.5.3 Payment

14.6 CLIN 0014AF - POZZOLAN FOR RCC

14.6.1 Work Included

14.6.2 Measurement

14.6.3 Payment

14.7 CLIN 0014AG - AIR ENTRAINMENT ADMIXTURE FOR RCC

14.7.1 Work Included

14.7.2 Measurement

14.7.3 Payment

14.8 CLIN 0014AH - WATER REDUCING AND RETARDING ADMIXTURE FOR RCC

14.8.1 Work Included

14.8.2 Measurement

14.8.3 Payment

PART 15 CLIN 0015 - SOIL CEMENT

15.1 CLIN 0015AA - MIX, CONVEY, AND PLACE SOIL CEMENT

15.1.1 Work Included

15.1.2 Measurement

15.1.3 Payment

15.2 CLIN 0015AB - ONSITE SAND FOR SOIL CEMENT

15.2.1 Work Included

15.2.2 Measurement

15.2.3 Payment

SECTION 01 22 00 Page 3

15.3 CLIN 0015AC - CEMENT FOR SOIL CEMENT

15.3.1 Work Included

15.3.2 Measurement

15.3.3 Payment

PART 16 CLIN 0016 - REINFORCED CONCRETE KEY AT STILLING BASIN

16.1 Work Included

16.2 Measurement

16.3 Payment

PART 17 CLIN 0017 - REINFORCED CONCRETE END SILL

17.1 Work Included

17.2 Measurement

17.3 Payment

PART 18 CLIN 0018 - REINFORCED CONCRETE APPROACH APRON SLAB

18.1 Work Included

18.2 Measurement

18.3 Payment

PART 19 CLIN 0019 - REINFORCED CONCRETE UPSTREAM CUTOFF WALL

19.1 Work Included

19.2 Measurement

19.3 Payment

PART 20 CLIN 0020 - REINFORCED CONCRETE LABYRINTH WEIR

20.1 Work Included

20.2 Measurement

20.3 Payment

PART 21 CLIN 0021 - STRUCTURAL CONCRETE WALLS

21.1 CLIN 0021AA - REINFORCED CONCRETE APPROACH WALLS

21.1.1 Work Included

21.1.2 Measurement

21.1.3 Payment

21.2 CLIN 0021AB - REINFORCED…