Standard Specifications for Road, Bridge, and Municipal Construction 2020 (M 41-10) - page 17

Page 1-38 

Control of Work

1-05

 

Control of Work

1-05.1 

Authority of the Engineer

The Engineer shall be satisfied that all the Work is being done in accordance with the 
requirements of the Contract. The Contract and Specifications give the Engineer authority 
over the Work. Whenever it is so provided in this Contract, the decision of the Engineer 
shall be final: provided, however, that if an action is brought within the time allowed in 
this Contract challenging the Engineer’s decision, that decision shall be subject to the 
scope of judicial review provided in such cases under Washington case law.

The Engineer’s decisions will be final on all questions including the following:
1.  Quality and acceptability of materials and Work,
2.  Measurement of unit price Work,
3.  Acceptability of rates of progress on the Work,
4.  Interpretation of Plans and Specifications,
5.  Determination as to the existence of changed or differing site conditions,
6.  Fulfillment of the Contract by the Contractor,
7.  Payments under the Contract including equitable adjustment,
8.  Suspension(s) of Work,
9.  Termination of the Contract for default or public convenience,
10.  Determination as to unworkable days, and
11.  Approval of Working Drawings.

The Engineer represents the Contracting Agency with full authority to enforce Contract 
requirements. If the Contractor fails to respond promptly to the requirements of the 
Contract or orders from the Engineer:
1.  The Engineer may use Contracting Agency resources, other contractors, or other 

means to accomplish the Work; and

2.  The Contracting Agency will not be obligated to pay the Contractor, and will deduct 

from the Contractor’s payments any costs that result when any other means are used 
to carry out the Contract requirements or Engineer’s orders.

At the Contractor’s risk, the Engineer may suspend all or part of the Work according to 

Section 1-08.6

.

Control of Work 

1-05

Nothing in these Specifications or in the Contract requires the Engineer to provide the 
Contractor with direction or advice on how to do the Work. If the Engineer approves 
or recommends any method or manner for doing the Work or producing materials, the 
approval or recommendation shall not:
1.  Guarantee that following the method or manner will result in compliance with the 

Contract,

2.  Relieve the Contractor of any risks or obligations under the Contract, or
3.  Create any Contracting Agency liability.

1-05.2 

Authority of Assistants and Inspectors

The Engineer may appoint assistants and Inspectors to assist in determining that the 
Work and materials meet the Contract requirements. Assistants and Inspectors have the 
authority to reject defective material and suspend Work that is being done improperly, 
subject to the final decisions of the Engineer.

Assistants and Inspectors are not authorized to accept Work, to accept materials, to issue 
instructions, or to give advice that is contrary to the Contract. Work done or material 
furnished which does not meet the Contract requirements shall be at the Contractor’s risk 
and shall not be a basis for a claim even if the Inspectors or assistants purport to change 
the Contract.

Assistants and Inspectors may advise the Contractor of any faulty Work or materials 
or infringements of the terms of the Contract; however, failure of the Engineer or the 
assistants or Inspectors to advise the Contractor does not constitute acceptance or 
approval.

1-05.3 

Working Drawings

The Contract may require the Contractor to submit Working Drawings for the 
performance of the work. Working Drawings shall be submitted by the Contractor 
electronically to the Engineer in PDF format; drawing details shall be prepared in 
accordance with conventional detailing practices. If the PDF format is found to be 
unacceptable, at the request of the Engineer, the Contractor shall provide paper copies 
of the Working Drawings with drawings on 11 by 17 inch sheets and calculations/text on 
8½ by 11 inch sheets.

Working Drawings will be classified under the following categories:
1.  Type 1 – Submitted for Contracting Agency information. Submittal must be received 

by the Contracting Agency a minimum of 7 calendar days before Work represented 
by the submittal begins.

2.  Type 2 – Submitted for Contracting Agency review and comment. Unless otherwise 

stated in the Contract, the Engineer will require up to 20 calendar days from the 
date the Working Drawing is received until it is returned to the Contractor. The 
Contractor shall not proceed with the Work represented by the Working Drawing 
until comments from the Engineer have been addressed.

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Control of Work

3.  Type 2E – Same as a Type 2 Working Drawing with Engineering as described below.
4.  Type 3 – Submitted for Contracting Agency review and approval. Unless otherwise 

stated in the Contract, the Engineer will require up to 30 calendar days from the 
date the Working Drawing is received until it is returned to the Contractor. The 
Contractor shall obtain the Engineer’s written approval before proceeding with the 
Work represented by the Working Drawing.

5.  Type 3E – Same as a Type 3 Working Drawing with Engineering as described below.

All Working Drawings shall be considered Type 3 Working Drawings except as specifically 
noted otherwise in the Contract. Unless designated otherwise by the Contractor, 
submittals of Working Drawings will be reviewed in the order they are received by the 
Engineer. In the event that several Working Drawings are received simultaneously, the 
Contractor shall specify the sequence in which they are to be reviewed. If the Contractor 
does not submit a review sequence for simultaneous Working Drawing submittals, the 
review sequence will be at the Engineer’s discretion.

Working Drawings requiring Engineering, Type 2E and 3E, shall be prepared by (or 
under the direction of) a Professional Engineer, licensed under Title 18 RCW, State of 
Washington, and in accordance with 

WAC 196-23-020

. Design calculations shall carry the 

Professional Engineer’s signature and seal, date of signature, and registration number on 
the cover page. The cover page shall also include the Contract number, Contract title and 
sequential index to calculation page numbers.

If more than the specified number of calendar days is required for the Engineer’s review of 
any individual Working Drawing or resubmittal, an extension of time will be considered in 
accordance with 

Section 1-08.8

.

Review or approval of Working Drawings shall neither confer upon the Contracting 
Agency nor relieve the Contractor of any responsibility for the accuracy of the drawings 
or their conformity with the Contract. The Contractor shall bear all risk and all costs of any 
Work delays caused by rejection or nonapproval of Working Drawings.

Unit Bid prices shall cover all costs of Working Drawings.

1-05.4 

Conformity With and Deviations From Plans and Stakes

The Special Provisions may require that the Contractor be contractually responsible for 
part or all of the project surveying. For survey requirements not the responsibility of the 
Contractor, the Engineer will lay out and set construction stakes and marks needed to 
establish the lines, grades, slopes, cross-sections, and curve superelevations. These stakes 
and marks will govern the Contractor’s Work. The Contractor shall take full responsibility 
for detailed dimensions, elevations, and slopes measured from them.

All Work performed shall be in conformity with the lines, grades, slopes, cross-sections, 
superelevation data, and dimensions as shown in the Plans, or as staked. If the Plans, 
Special Provisions, or these Specifications, state specific tolerances, then the Work shall 
be performed within those limits. The Engineer’s decision on whether the Work is in 
conformity shall be final, as provided in 

Section 1-05.1

.

Control of Work 

1-05

The Contractor shall not deviate from the approved Plans and Working Drawings unless 
the Engineer approves in writing.

When the Contracting Agency is responsible for roadway surveying, and the Contractor 
trims the Subgrade with an automatic machine guided by reference lines, the Engineer will 
set control stakes for line and grade only once after grading is complete. To gain better 
control with unusual pavement widths or for other reasons, the Engineer may set more 
control stakes without added cost to the Contractor. The Contractor shall set reference 
lines from these control stakes for trimming Subgrade, for surfacing, and for controlling 
the paving machines.

The Contractor shall work to preserve stakes, marks, and monuments set by the Engineer. 
The Contracting Agency will deduct from payments due the Contractor all costs to 
replace such stakes, marks, and monuments carelessly or willfully damaged or destroyed 
by the Contractor’s operation.

The Contractor shall provide enough safe areas to permit the Engineer to set those points 
and elevations that are the responsibility of the Contracting Agency and to perform 
random checks of the surveying performed by the Contractor.

The Contractor shall keep the Engineer informed of staking requirements to provide 
the Engineer with adequate time to set the stakes for which the Contracting Agency is 
responsible. Contractor requests for stakes shall be made at least 3 working days before 
the Engineer needs to begin the staking operation.

1-05.5 

Tolerances

Geometrical tolerances shall be measured from the points, lines, and surfaces defined in 
Contract documents.

A plus (+) tolerance increases the amount or dimension to which it applies, or raises a 
deviation from level. A minus (-) tolerance decreases the amount or dimension to which 
it applies, or lowers a deviation from level. Where only one signed tolerance is specified 
(+ or -), there is no specified tolerance in the opposing direction.

Tolerances shall not be cumulative. The most restrictive tolerance shall control.

Tolerances shall not extend the Work beyond the Right of Way or other legal boundaries 
identified in the Contract documents. If application of tolerances causes the extension of 
the Work beyond the Right of Way or legal boundaries, the tolerance shall be reduced for 
that specific instance.

Tolerances shall not violate other Contract requirements. If application of tolerances 
causes the Work to violate other Contract requirements, the tolerance shall be 
reduced for that specific instance. If application of tolerances causes conflicts with 
other components or aspects of the Work, the tolerance shall be reduced for that 
specific instance.

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Control of Work

1-05.6 

Inspection of Work and Materials

The Engineer may inspect all Work and materials for conformity with Contract terms. To 
ensure the Engineer’s safety and access during these inspections, the Contractor shall 
provide any equipment needed, such as walkways, railings, ladders, and platforms.

When the Engineer requests, the Contractor shall (without charge) provide samples of 
materials used or to be used in the Work. If the Contractor uses materials tested and 
approved for one project in an unrelated project, the Contracting Agency may deduct its 
testing and inspection costs from payments due the Contractor. The Engineer may order 
the Contractor to remove and replace, and bear the cost of doing so, any materials used 
without inspection.

Any inspections, tests, measurements, or other actions by Contracting Agency employees 
serve only one purpose: to assure the Engineer that Work, materials, progress rate, and 
quantities comply with Contract terms. Such work by Contracting Agency employees shall 
not relieve the Contractor from doing any Contract-assigned Work or from determining 
whether Contract requirements are being met. The Contractor shall correct any 
substandard Work or materials. The Engineer will reject unsuitable Work or materials even 
though inspected or paid for in a progress estimate.

If the Engineer requests, then the Contractor shall remove or uncover any area of the 
completed Work. After the Engineer inspects it, the Contractor shall restore the area to 
the standard the Contract requires. The Contractor shall bear the cost of uncovering, 
removing, and restoring the exposed Work: (a) if it proves unacceptable, or (b) if it 
was placed without authority or without due notice to the Engineer. The Contracting 
Agency will pay these costs by agreed price or by force account if the Work proves to be 
acceptable and the Contractor had performed the original Work with the authority of and 
due notice to the Engineer.

The Contractor, if advised to do so by the Engineer, shall permit representatives from 
other agencies to inspect the Work when it is to be done:
1.  On any railroad, utility, or facility of a public agency; or
2.  To the satisfaction of any federal, state, or municipal agency.

In any crushing or screening operation, the Contractor shall provide and install a 
mechanical sampler that:
1.  Is automatic or semi-automatic;
2.  Can safely and easily obtain representative samples of the materials being produced;
3.  Can convey the samples to ground level in Contracting Agency-provided sacks;
4.  Moves at an even rate through the full width of the materials stream falling from the 

discharge end of the belt, gate, or chute;

5.  Is power driven during the material intercept cycle; and
6.  Can be adjusted to take samples of about 100 pounds as often as the Engineer 

requires.

Control of Work 

1-05

No material from the crushing or screen operation will be accepted until after the 
Engineer has approved the design and operation of the sampling equipment. The 
Contractor shall bear all costs of providing the sampling equipment, the power to operate 
it, and the space for its use.

1-05.7 

Removal of Defective and Unauthorized Work

The Contracting Agency will not pay for unauthorized or defective Work. Unauthorized 
or defective Work includes: Work and materials that do not conform to Contract 
requirements; Work done beyond the lines and grades set by the Plans or the Engineer; 
and extra Work and materials furnished without the Engineer’s written approval. At the 
Engineer’s order, the Contractor shall immediately remedy, remove, replace, or dispose of 
unauthorized or defective Work or materials and bear all costs of doing so.

1-05.8 Vacant
1-05.9 Equipment

Prior to mobilizing equipment on site, the Contractor shall thoroughly remove all loose 
dirt and vegetative debris from drive mechanisms, wheels, tires, tracks, buckets and 
undercarriage. The Engineer will reject equipment from the site until it returns clean.

At the Engineer’s request, the Contractor shall provide an operating and maintenance 
manual for each model or type of mixing, placing, or processing equipment before using 
it in the Work. The Contractor shall also provide test instruments to confirm whether the 
equipment meets operating requirements, such as vibration rate, revolutions-per-minute, 
or any other requirements.

The Contract may require automatically controlled equipment for some operations. If 
the automatic controls on such equipment fail, then the Contractor may operate the 
equipment manually for the remainder of that normal working day, provided the method 
of operation produces results otherwise meeting the Specifications. Continued operation 
of the equipment manually beyond this working day will be permitted only by specific 
authorization of the Engineer.

The Engineer will reject equipment that repeatedly breaks down or fails to produce results 
within the required tolerances. The Contractor shall have no claim for additional payment 
or for extension of time due to rejection and replacement of any equipment.

Upon completion of the Work, the Contractor shall completely remove all loose dirt and 
vegetative debris from equipment before removing it from the job site.

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Control of Work

1-05.10 Guarantees

The Contractor shall furnish to the Contracting Agency any guarantee or warranty 
furnished as a customary trade practice in connection with the purchase of any 
equipment, materials, or items incorporated into the project.

1-05.11 

Final Inspection

The Engineer will not make the final inspection until the physical Work required by the 
Contract, including final cleanup and all extra Work ordered by the Engineer, has been 
completed. The Physical Completion Date for the Contract will be determined as provided 
in 

Section 1-08.5

.

1-05.12 

Final Acceptance

The Contractor must perform all the obligations under the Contract before a Completion 
Date and final acceptance can occur. Failure of the Contractor to perform all the 
obligations under the Contract shall not bar the Contracting Agency from unilaterally 
accepting the Contract as provided in 

Section 1-09.9

. The Secretary accepts the 

completed Contract and the items of Work shown in the final estimate by signature 
of the Final Contract Voucher Certification. The date of that signature constitutes the 
acceptance date. Progress estimates or payments shall not be construed as acceptance of 
any Work under the Contract.

The Contractor agrees that neither completion nor final acceptance shall relieve the 
Contractor of the responsibility to indemnify, defend, and protect the Contracting 
Agency against any claim or loss resulting from the failure of the Contractor (or 
the Subcontractors or lower tier subcontractors) to pay all laborers, mechanics, 
Subcontractors, materialpersons, or any other person who provides labor, supplies, or 
provisions for carrying out the Work or for any payments required for unemployment 
compensation under 

Title 50 RCW

 or for industrial insurance and medical aid required 

under 

Title 51 RCW

.

Final acceptance shall not constitute acceptance of any unauthorized or defective work 
or material. The Contracting Agency shall not be barred from requiring the Contractor to 
remove, replace, repair, or dispose of any unauthorized or defective work or material or 
from recovering damages for any such work or material.

Control of Work 

1-05

1-05.13 

Superintendents, Labor, and Equipment of Contractor

At all times, the Contractor shall keep at the Work site a set of the Plans, Specifications, 
Special Provisions, and Addenda. The Contractor shall devote the attention required 
to make reasonable progress on the Work and shall cooperate fully with the Engineer 
and Inspectors.

Either the Contractor in person or an authorized representative shall remain on site 
whenever the Work is underway. Before the Work begins, the Contractor shall name 
in writing an experienced superintendent who understands the Contract and is able to 
supervise the Work. This superintendent shall have full authority to represent and act for 
the Contractor. Any superintendent who repeatedly fails to follow the Engineer’s written 
or oral orders, directions, instructions, or determinations, shall be subject to removal from 
the project. Upon the written request of the Engineer, the Contractor shall immediately 
remove such superintendent and name a replacement in writing.

Competent supervisors experienced in the task being performed shall continuously 
oversee the Contract Work. At the Engineer’s written request, the Contractor shall 
immediately remove and replace any incompetent, careless, or negligent employee.

Noncompliance with the Engineer’s request to remove and replace personnel at any level 
shall be grounds for terminating the Contract under the terms of 

Section 1-08.10

.

The Contractor shall keep all machinery and equipment in good, workable condition. 
It shall be adequate for its purpose and used by competent operators.

The Engineer will rate the Contractor’s performance and Contract compliance in these 
categories:
1.  Progress of Work,
2.  Quality of Work,
3. Equipment,
4.  Administration/Management/Supervision, and
5.  Coordination and Control of Subcontractors.

Whenever the Contracting Agency evaluates the Contractor’s prequalification under 

RCW 47.28.070

, it will take these reports into account.

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Control of Work

1-05.13(1)  Emergency Contact List

The Contractor shall submit an Emergency Contact List to the Engineer no later than 5 
calendar days after the date the Contract is executed. The list shall include, at a minimum, 
the Contractor’s Project Manager, or equivalent, the Contractor’s Project Superintendent, 
the Erosion and Sediment Control (ESC) Lead, and the Traffic Control Supervisor. The list 
shall identify a representative with delegated authority to act as the emergency contact 
on behalf of the Contractor and include one or more alternates. The emergency contact 
shall be available upon the Engineer’s request at other than normal working hours. The 
Emergency Contact List shall include 24-hour telephone numbers for all individuals 
identified as emergency contacts or alternates.

1-05.14 

Cooperation With Other Contractors

The Contracting Agency may perform other work at or near the site, including any 
material site, with other forces than those of the Contractor. This work may be done 
with or without a contract. If such work takes place within or next to this project, the 
Contractor shall cooperate with all other contractors or forces. The Contractor shall carry 
out Work under this project in a way that will minimize interference and delay for all 
forces involved. The Engineer will resolve any disagreements that may arise among the 
contractors or the Contractor and the Contracting Agency over the method or order of 
doing the Work. The Engineer’s decision in these matters shall be final, as provided in 

Section 1-05.1

.

The coordination of the Work shall be taken into account by the Contractor as part of 
the site investigation in accordance with 

Section 1-02.4

 and any resulting costs shall be 

incidental and included within the unit Bid prices in the Contract.

1-05.15 

Method of Serving Notices

Any written notice to the Contractor required under these Specifications may be served 
on the Contractor either personally or by mailing or by delivery to the last post office 
address known to the Engineer. 

All correspondence from the Contractor shall be directed to the Engineer.

Control of Material 

1-06

1-06

 

Control of Material

1-06.1 

Approval of Materials Prior to Use

Prior to use, the Contractor shall notify the Engineer of all proposed materials. 
The Contractor shall use the Qualified Product List (QPL), the Aggregate Source Approval 
(ASA) Database, or the Request for Approval of Material (RAM) form.

All equipment, materials, and articles incorporated into the permanent Work:
1.  Shall be new, unless the Special Provisions or Standard Specifications permit 

otherwise;

2.  Shall meet the requirements of the Contract and be approved by the Engineer;
3.  May be inspected or tested at any time during their preparation and use; and
4.  Shall not be used in the Work if they become unfit after being previously approved.

1-06.1(1)  Qualified Products List (QPL)

The QPL is a listing of manufactured products that have been evaluated and determined 
suitable for use in Highway construction.

If the Contractor elects to use the QPL, the most current list available at the time the 
product is proposed for use, shall be used. The QPL submittal shall be prepared by the 
Contractor in accordance with the instructions in the QPL and submitted to the Engineer 
prior to use.

The QPL identifies the approved products, the applicable Specification Section, and 
the basis for acceptance at the project level. The listing is divided into two categories, 
“Approved” and “Conditionally Approved”. “Approved” products are denoted with an “A”. 
Those products may be accepted without additional sampling. “Conditionally Approved” 
products are denoted with a “CA”. The acceptance and use of these products is based 
upon additional job sampling and/or documentation. All additional acceptance actions 
need to be completed prior to the material being incorporated into the Work.

The Contractor shall advise the Engineer of the intended items for use from the QPL by 
reference to the Contract Bid item.

The use of listed products shall be restricted to the Standard Specification for which they 
are listed and fulfillment of the acceptance requirement defined in the QPL. Qualified 
products not conforming to the Specifications, not fulfilling the acceptance requirements, 
or improperly handled or installed, shall be replaced at the Contractor’s expense.

To qualify for continued listing on the QPL, products may be sampled and tested for 
conformance to the Standard Specifications. The Contracting Agency reserves the right to 
make revisions to the QPL at any time.

If there is a conflict between the QPL and the Contract, the provisions of the Contract 
shall take precedence over the QPL.

The current QPL can be accessed online at 

www.wsdot.wa.gov/business/materialslab/QPL.htm

.

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Control of Material

1-06.1(2)  Request for Approval of Material (RAM)

The RAM shall be used when the Contractor elects not to use the QPL or the material is 
not listed in the QPL. The RAM shall be prepared by the Contractor in accordance with 
the instructions on 

Form 350-071

 and submitted to the Engineer for approval before the 

material is incorporated into the Work.

Approval of the material does not constitute acceptance of the material for incorporation 
into the Work.

Additional acceptance actions as noted on the RAM need to be completed prior to the 
materials being incorporated into the Work.

When requesting approval of an item that requires fabrication, both the fabricator and the 
manufacturer of the base material shall be identified on the RAM.

1-06.1(3)  Aggregate Source Approval (ASA) Database

The ASA database contains the results of WSDOT preliminary testing of aggregate 
sources as well as the results pertaining to the review of the aggregate source Quality 
Control Programs. Aggregate sources evaluated after January 1, 2021 shall have Quality 
Control Program compliant with QC 11 and QC 12.

This database is used by the Contracting Agency to indicate the approval status of these 
aggregate sources for applications that require preliminary testing as defined in the 
Contract. The ASA ‘Aggregate Source Approval Report’ identifies the currently approved 
applications for each aggregate source listed. The acceptance and use of these aggregates 
is contingent upon additional job sampling and/or documentation. The ASA database can 
be accessed online at the agency website.

Aggregates approved for applications on the ASA ‘Aggregate Source Approval Report’ not 
conforming to the Specifications, not fulfilling the acceptance requirements, or improperly 
handled or installed, shall be replaced at the Contractor’s expense.

Aggregate materials that are not approved for use in the ASA data base may be sampled 
and tested by the Agency, for a specified use on a project, from the source or from a 
processed stockpile of the material and all cost for the sampling and testing will be 
deducted from the Contract.

The Contractor agrees to authorize the Engineer to deduct the sampling and testing costs 
from any money due or coming due to the Contractor.

Regardless of the status of the source, whether listed or not listed in the ASA database 
the source owner may be asked to provide testing results for toxicity in accordance with 

Section 9-03.21(1)

.

Control of Material 

1-06

1-06.1(4)  Fabrication Inspection Expense

In the event the Contractor elects to have items fabricated beyond 300 miles from 
Seattle, Washington, the Contracting Agency will deduct from monies due or that 
may become due to the Contractor all costs to perform plant approval and fabrication 
acceptance inspection for the items listed in 

Table 1

 and costs for initial plant approval 

for items listed in 

Table 2

. Plants currently listed on the QPL for the items shown in 

Table 1

 and 

Table 2

 in this section do not require plant approval.

Table 1 

Items Requiring Plant Approval and Fabrication Acceptance 

Inspection

• 

Anchor Bolts (ASTM A449 & F1554 

Grade 105)

• 

Bridge Bearings (Cylindrical, Disc, Fabric Pad, 

Low Rise, Pin, Pendulum, and Spherical)

• 

Cattle Guards

• 

Coated Piling and Casing

• 

Epoxy-Coated Reinforcing Steel

• 

Fabricated/Welded Miscellaneous Metal 

Drainage Items: Grate Inlets, and Drop Inlets

• 

Longitudinal Seismic Restrainers

• 

Metal Bridge Railing and Handrail

• 

Metal Castings for Concrete Drainage, 

electrical, and Utility Items

• 

Modular Expansion Joints

• 

Paint & Powder Coating Facilities for Table 

1 items

• 

Precast Concrete Bridge Deck Panels

• 

Precast Concrete Catch Basins, Manholes, 

Inlets, Drywells, and Risers

• 

Precast Concrete Drain, Perforated 

Underdrain, Culvert, Storm Sewer, and 

Sanitary Sewer Pipe

• 

Precast Concrete Floor Panels

• 

Precast Concrete Junction Boxes, Pull Boxes, 

Cable Vaults

• 

Precast Concrete Marine Pier Deck Panels

• 

Precast Concrete Pier Caps

• 

Precast Concrete Retaining Walls, including 

Lagging Panels

• 

Precast Concrete Roof Panels

• 

Precast Concrete Structural Earth Walls, 

Noise Barrier Walls, Wall Panels, and Wall 

Stem Panels

• 

Precast Concrete Traffic Barrier

• 

Precast Concrete Vaults (Electrical, Utility, 

Drainage, etc.)

• 

Precast Concrete Girders and Precast Bridge 

Components

• 

Prestressed Concrete Girders

• 

Prestressed Concrete Panels

• 

Precast Reinforced Concrete Box Culverts

• 

Precast Reinforced Concrete Split Box 

Culverts

• 

Precast Reinforced Concrete Three Sided 

Structures

• 

Prestressed Concrete Piles

• 

Retrofit Guardrail Posts with Welded Base 

Plates

• 

Signal Standards

• 

Signing Material

• 

Sign Structures – Cantilever, Sign Bridge, and 

Bridge Mounted, Roadside Type PLT/PLU

• 

Soldier Piles

• 

Steel Bridges and Steel Bridge Components

• 

Steel Column Jackets

• 

Steel Light Standards, and High Mast Light 

Poles

• 

Strip Seal Expansion Joints

• 

Structural Steel for Ferry Terminal Berthing, 

Pedestrian and Vehicle Loading Structures

• 

Timber Bridges

• 

Treated Timber and Lumber 6 inch by 6 inch 

or larger

• 

Welded Structural Steel (Miscellaneous)

Page 1-50 

Control of Material

Table 2 

Items Requiring Initial Plant Approval Only

• 

Epoxy Coating of Dowels and Tiebars for 

Concrete Pavement

• 

Guardrail Posts and Blocks

• 

Precast Concrete Blocks for Structural Earth 

Walls

• 

Steel Pipe Piling

The deductions for fabrication inspection costs will be as shown in the Payment Table 
below.

Zone

Place of Fabrication or Inspection Site

Reduction in Payment

1

Within 300 airline miles from Seattle

None*

2

Between 300 and 3,000 airline miles from 

Seattle

$700.00 per inspection day**

3

Over 3,000 airline miles from Seattle

$1,000 per inspection day,**  

but not less than $2,500 per trip

*Fabrication inspection expense does not apply for initial acceptance inspection in Zone 1. Re-inspection of 

items due to unacceptable workmanship or scheduling errors made by the Contractor, fabricator, or facility 

applying protective coatings will be assessed at $60.00 per hour but not less than $120.00 per inspection.
**An inspection day includes any calendar day or portion of a calendar day spent by one inspector 

inspecting, on standby, or traveling to and from, a place of fabrication. An additional cost per inspection 

day will be assessed for each additional inspector. Reimbursement will be assessed at $280.00 per day for 

weekends and holidays for each on site inspector in travel status, but not engaged in inspection or travel 

activities when fabrication activities are not taking place.

Where fabrication of an item takes place in more than one zone, the reduction in payment 
will be computed on the basis of the entire item being fabricated in the farthest of zones 
where any fabrication takes place on that item.

The rates for Zones 2 and 3 shall be applied for the full duration of time for all fabrication 
inspection activities, to include, but not be limited to: plant approvals, prefabrication 
meetings, fabrication, coatings, and final inspection. When an inspection is for more 
than one Contract the fabrication inspection costs shall be prorated as determined by 
the Engineer.

1-06.2 

Acceptance of Materials

1-06.2(1)  Samples and Tests for Acceptance

The Contractor shall deliver representative samples (from the Contractor, Producer, or 
Fabricator) to the Engineer without charge before incorporating material into the Work. 
In providing samples, the Contractor shall provide the Engineer with sufficient time and 
quantities for testing before use. The Engineer may require samples at any time. Samples 
not taken by or in the presence of the Engineer will not be accepted for test, unless the 
Engineer permits otherwise.

The Contractor shall designate specific Contractor employees as points of contact for 
concrete testing and acceptance. Alternates shall be designated to ensure that direct 
contact is maintained during concrete placement. If designated by the Contractor to the 
Engineer, the concrete supplier will receive all 28-day concrete strength test results.

Control of Material 

1-06

The Engineer will designate specific Contracting Agency employees as points of contact 
for concrete testing and acceptance.

The Contractor may observe any of the sampling and testing performed by the 
Engineer. If the Contractor observes a deviation from the specified sampling and testing 
procedures, the Contractor shall verbally describe the deviations observed to the 
Engineer or designated representative immediately, and shall confirm these observed 
deviations in writing to the Engineer within 24 hours, referencing the specific procedures 
and steps. The Engineer will respond in writing within 3 working days of the receipt of the 
Contractor’s written communications.

All field and Laboratory materials testing by the Engineer will follow methods described in 
Contract documents, or in the WSDOT 

Materials Manual

 M 46-01, using qualified testing 

personnel and calibrated or verified equipment. The standard or tentative standard in 
effect on the Bid advertising date will apply in each case.

Revisions to the WSDOT 

Materials Manual

 M 46-01 or revisions to other Specifications or 

test methods such as AASHTO, ASTM, or Federal Specifications will be considered as in 
effect 60 calendar days after publication.

1-06.2(2)  Statistical Evaluation of Materials for Acceptance

1-06.2(2)A General

Where specified, acceptance sampling and testing will be performed by the Contracting 
Agency and statistically evaluated for acceptance by the provisions of this Subsection. 
All test results for a lot will be analyzed collectively and statistically by the quality level 
analysis procedures shown at the end of this Subsection to determine the total percent 
of the lot that is within Specification limits and to determine an appropriate pay factor. 
Lots and sublots are defined in the appropriate Subsection of these Specifications for the 
material being statistically evaluated.

Quality level analysis is a statistical procedure for determining the percent compliance of 
the material with these Specifications. Quality level is the computed percent of material 
meeting these Specifications and is determined from the arithmetic mean, (X

m

), and the 

sample standard deviation (S), for each constituent of the lot.

Any necessary rounding off of test results or calculations will be accomplished according 
to the individual testing procedure, or, if not defined in the procedure then accomplished 
according to the following rule:
1.  The final significant digit will not be changed when the succeeding digit is less 

than 5.

2.  The final significant digit will be increased by one when the succeeding digit is 5 or 

greater.

Page 1-52 

Control of Material

Table 1 

Estimated percent of Work Within Specification Limits

Estimated 

percent Within 

Specification 

Limits 

(P

U

 or P

L

)

Upper Quality Index Q

U

 or Lower Quality Index Q

L

n=3 n=4 n=5 n=6 n=7 n=8 n=9

n=10 

to 

n=11

n=12 

to 

n=14

n=15 

to 

n=17

n=18 

to 

n=22

n=23 

to 

n=29

n=30 

to 

n=42

n=43 

to 

n=66

n=67 

to 

∞

100

99

98

97

96

95

1.16

1.15

1.14

1.49

1.46

1.43

1.40

1.37

1.34

1.72

1.64

1.58

1.52

1.47

1.42

1.88

1.75

1.66

1.59

1.52

1.47

1.99

1.82

1.72

1.63

1.56

1.49

2.07

1.88

1.75

1.66

1.58

1.51

2.13

1.91

1.78

1.68

1.60

1.52

2.20

1.96

1.81

1.71

1.62

1.54

2.28

2.01

1.84

1.73

1.64

1.55

2.34

2.04

1.87

1.75

1.65

1.56

2.39

2.07

1.89

1.76

1.66

1.57

2.44

2.09

1.91

1.78

1.67

1.58

2.48

2.12

1.93

1.79

1.68

1.59

2.51

2.14

1.94

1.80

1.69

1.59

2.56

2.16

1.95

1.81

1.70

1.60

94

93

92

91

90

1.13

1.12

1.11

1.10

1.31

1.28

1.25

1.22

1.19

1.38

1.33

1.29

1.25

1.21

1.41

1.36

1.31

1.27

1.23

1.43

1.38

1.33

1.28

1.23

1.45

1.39

1.33

1.28

1.24

1.46

1.40

1.34

1.29

1.24

1.47

1.41

1.35

1.29

1.24

1.48

1.41

1.35

1.30

1.25

1.49

1.42

1.36

1.30

1.25

1.50

1.43

1.36

1.30

1.25

1.50

1.43

1.37

1.31

1.25

1.51

1.44

1.37

1.31

1.25

1.51

1.44

1.37

1.31

1.26

1.52

1.44

1.38

1.31

1.26

89

88

87

86

85

1.09

1.07

1.06

1.04

1.03

1.16

1.13

1.10

1.07

1.04

1.18

1.14

1.10

1.07

1.03

1.18

1.14

1.10

1.07

1.03

1.19

1.15

1.10

1.07

1.03

1.19

1.15

1.10

1.06

1.03

1.19

1.15

1.10

1.06

1.02

1.19

1.15

1.10

1.06

1.02

1.20

1.15

1.11

1.06

1.02

1.20

1.15

1.11

1.06

1.02

1.20

1.15

1.11

1.06

1.02

1.20

1.15

1.11

1.06

1.02

1.20

1.15

1.11

1.06

1.02

1.20

1.15

1.11

1.06

1.02

1.20

1.15

1.11

1.06

1.02

84

83

82

81

80

1.01

0.99

0.97

0.95

0.93

1.01

0.98

0.95

0.92

0.89

1.00

0.97

0.93

0.90

0.87

0.99

0.96

0.92

0.89

0.86

0.99

0.95

0.92

0.88

0.85

0.99

0.95

0.92

0.88

0.85

0.99

0.95

0.91

0.88

0.84

0.98

0.95

0.91

0.87

0.84

0.98

0.94

0.91

0.87

0.84

0.98

0.94

0.91

0.87

0.83

0.98

0.94

0.90

0.87

0.83

0.98

0.94

0.90

0.87

0.83

0.98

0.94

0.90

0.87

0.83

0.98

0.94

0.90

0.87

0.83

0.98

0.94

0.90

0.87

0.83

79

78

77

76

75

0.91

0.88

0.86

0.83

0.81

0.86

0.83

0.80

0.77

0.74

0.84

0.81

0.77

0.74

0.71

0.82

0.79

0.76

0.73

0.70

0.82

0.79

0.75

0.72

0.69

0.81

0.78

0.75

0.72

0.69

0.81

0.78

0.74

0.71

0.68

0.81

0.77

0.74

0.71

0.68

0.80

0.77

0.74

0.70

0.67

0.80

0.77

0.73

0.70

0.67

0.80

0.76

0.73

0.70

0.67

0.80

0.76

0.73

0.70

0.67

0.80

0.76

0.73

0.70

0.67

0.80

0.76

0.73

0.70

0.67

0.79

0.76

0.73

0.70

0.66

74

73

72

71

70

0.78

0.75

0.73

0.70

0.67

0.71

0.68

0.65

0.62

0.59

0.68

0.65

0.62

0.59

0.56

0.67

0.64

0.61

0.58

0.55

0.67

0.63

0.60

0.57

0.54

0.65

0.62

0.59

0.57

0.54

0.65

0.62

0.59

0.56

0.53

0.65

0.62

0.59

0.56

0.53

0.64

0.61

0.58

0.55

0.52

0.64

0.61

0.58

0.55

0.52

0.64

0.61

0.58

0.55

0.52

0.64

0.61

0.58

0.55

0.52

0.64

0.61

0.58

0.55

0.52

0.64

0.61

0.58

0.55

0.52

0.63

0.60

0.57

0.54

0.52

69

68

67

66

65

0.64

0.61

0.58

0.55

0.51

0.56

0.53

0.50

0.47

0.44

0.53

0.50

0.47

0.45

0.42

0.52

0.49

0.46

0.43

0.40

0.51

0.48

0.45

0.43

0.40

0.51

0.48

0.45

0.42

0.39

0.50

0.48

0.45

0.42

0.39

0.50

0.47

0.44

0.42

0.39

0.50

0.47

0.44

0.41

0.38

0.49

0.47

0.44

0.41

0.38

0.49

0.46

0.44

0.41

0.38

0.49

0.46

0.43

0.41

0.38

0.49

0.46

0.43

0.41

0.38

0.49

0.46

0.43

0.41

0.38

0.49

0.46

0.43

0.40

0.38

64

63

62

61

60

0.48

0.45

0.41

0.38

0.34

0.41

0.38

0.35

0.30

0.28

0.39

0.36

0.33

0.30

0.28

0.38

0.35

0.32

0.30

0.25

0.37

0.34

0.32

0.29

0.25

0.37

0.34

0.31

0.28

0.25

0.36

0.34

0.31

0.28

0.25

0.36

0.33

0.31

0.28

0.25

0.36

0.33

0.30

0.28

0.25

0.36

0.33

0.30

0.28

0.25

0.35

0.33

0.30

0.28

0.25

0.35

0.33

0.30

0.28

0.25

0.35

0.33

0.30

0.28

0.25

0.35

0.33

0.30

0.28

0.25

0.35

0.32

0.30

0.28

0.25

59

58

57

56

55

0.31

0.30

0.25

0.20

0.18

0.27

0.25

0.20

0.18

0.15

0.25

0.23

0.18

0.16

0.13

0.23

0.20

0.18

0.15

0.13

0.23

0.20

0.18

0.15

0.13

0.23

0.20

0.18

0.15

0.13

0.23

0.20

0.18

0.15

0.13

0.23

0.20

0.18

0.15

0.13

0.23

0.20

0.18

0.15

0.13

0.23

0.20

0.18

0.15

0.13

0.23

0.20

0.18

0.15

0.13

0.23

0.20

0.18

0.15

0.13

0.23

0.20

0.18

0.15

0.13

0.23

0.20

0.18

0.15

0.13

0.23

0.20

0.18

0.15

0.13

54

53

52

51

50

0.15

0.10

0.08

0.05

0.00

0.13

0.10

0.05

0.03

0.00

0.10

0.08

0.05

0.03

0.00

0.10

0.08

0.05

0.03

0.00

0.10

0.08

0.05

0.03

0.00

0.10

0.08

0.05

0.03

0.00

0.10

0.08

0.05

0.03

0.00

0.10

0.08

0.05

0.03

0.00

0.10

0.08

0.05

0.03

0.00

0.10

0.08

0.05

0.03

0.00

0.10

0.08

0.05

0.03

0.00

0.10

0.08

0.05

0.03

0.00

0.10

0.08

0.05

0.03

0.00

0.10

0.08

0.05

0.03

0.00

0.10

0.08

0.05

0.03

0.00

Control of Material 

1-06

Table 2 

Pay Factors

Pay Factor

Required Quality Level for a Given Sample Size (n) and a Given Pay Factor

n=3 n=4 n=5 n=6 n=7 n=8 n=9

n=10 

to 

n=11

n=12 

to 

n=14

n=15 

to 

n=17

n=18 

to 

n=22

n=23 

to 

n=29

n=30 

to 

n=42

n=43 

to 

n=66

n=67 

to 

∞

1.05

1.04

1.03

1.02

1.01

100 100 100

100

99

98

100

98

97

95

100

99

96

94

92

100

97

94

91

89

100

95

92

89

87

100

96

93

90

88

100

96

93

91

89

100

96

94

92

90

100

97

95

93

91

100

97

95

93

92

100

97

96

94

92

100

97

96

94

93

1.00

0.99

0.98

0.97

0.96

69

66

64

63

61

75

72

70

68

67

78

76

74

72

70

80

78

76

74

72

82

80

78

76

74

83

81

79

77

75

84

82

80

78

76

85

83

81

79

78

86

84

82

81

79

87

85

84

82

81

88

86

85

83

82

89

87

86

84

83

90

89

87

86

84

91

90

88

87

86

92

91

90

88

87

0.95

0.94

0.93

0.92

0.91

59

58

57

55

54

65

63

62

60

59

68

67

65

63

62

71

69

67

66

64

72

71

69

68

66

74

72

71

69

68

75

73

72

70

69

76

75

73

72

70

78

76

75

73

72

79

78

76

75

74

80

79

78

76

75

82

80

79

78

76

83

82

80

79

78

84

83

82

81

79

86

85

84

82

81

0.90

0.89

0.88

0.87

0.86

53

51

50

49

48

57

56

55

53

52

61

59

58

57

55

63

62

60

59

58

65

63

62

61

59

66

65

64

62

61

67

66

65

63

62

69

68

66

65

64

71

69

68

67

66

72

71

70

68

67

74

72

71

70

69

75

74

73

71

70

77

75

74

73

72

78

77

76

75

74

80

79

78

77

76

0.85

0.84

0.83

0.82

0.81

46

45

44

43

41

51

49

48

47

46

54

53

51

50

49

56

55

54

53

51

58

57

56

54

53

60

58

57

56

55

61

60

58

57

56

62

61

60

59

58

64

63

62

61

59

66

65

64

62

61

67

66

65

64

63

69

68

67

66

64

71

70

69

67

66

72

71

70

69

68

75

73

72

71

70

0.80

0.79

0.78

0.77

0.76

0.75

40

39

38

36

35

33

44

43

42

41

39

38

48

46

45

44

43

42

50

49

48

46

45

44

52

51

50

48

47

46

54

52

51

50

49

48

55

54

52

51

50

49

56

55

54

53

52

51

58

57

56

55

54

53

60

59

58

57

56

54

62

61

59

58

57

56

63

62

61

60

59

58

65

64

63

62

61

60

67

66

65

64

63

62

69

68

67

66

65

64

RE JECT

Values Less Than Those Shown Above

Reject Quality Levels Less Than Those Specified for a 0.75 Pay Factor

Note:

  

If the value of (P

U

 + P

L

) - 100 does not correspond to a (P

U

 + P

L

) - 100 value in this table, use the next smaller (P

U

+ P

L

) - 

100 value.