837468damRichmond.pdf

HOBBY HILL LAKE DAM REHABILITATION

Richmond, Virginia

Book 3 – Technical Specifications

Prepared for

City of Richmond Department of Public Utilities

July 2026

Hobby Hill Dam Rehabilitation Richmond, VA

Technical Specifications

DIN 760006 Hobby Hill Dam Richmond, Virginia

July 2026

VAPE License No. 061952 VAPE License No. 52178

Owner:

City of Richmond Department of Public Utilities 1801 Commerce Road

Richmond, Virginia 23224

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DAM REHABILITATION

SECTION 00 01 10

TABLE OF CONTENTS

DIVISION 01 − GENERAL REQUIREMENTS

Section Title

01 11 00 Summary of Work

01 20 00 Measurement and Payment

01 25 00 Substitution Procedures

01 26 00 Contract Modification Procedures

01 29 73 Schedule of Values

01 29 76 Progress Payment Procedures

01 31 19 Project Meetings

01 32 00 Construction Progress Schedule

01 33 00 Submittal Procedures

01 35 20 Confined Space Entry Plan

01 42 00 References

01 45 23 Testing Services Furnished by Contractor

01 51 00 Temporary Utilities

01 52 00 Construction Facilities

01 55 00 Contractor Access and Parking

01 57 00 Temporary Controls

01 61 00 Product Requirements and Options

01 65 00 Product Delivery Requirements

01 66 00 Product Storage and Protection Requirements

01 71 23 Field Engineering

01 71 33 Protection of Work and Property

01 73 00 Execution of Work

01 74 00 Cleaning and Waste Management

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01 77 19 Closeout Requirements

01 78 23 Operation and Maintenance Data

01 78 39 Project Record Documents

DIVISION 02 − EXISTING CONDITIONS

02 41 00 Demolition

DIVISION 03 − CONCRETE

03 11 00 Concrete Formwork

03 15 00 Concrete Accessories

03 15 16 Joints in Concrete

03 21 00 Reinforcing Steel

03 30 00 Cast-In-Place Concrete

03 35 00 Concrete Finishes

03 39 00 Concrete Curing

03 40 00 Precast Concrete

03 60 00 Grout

DIVISION 05 − METALS

05 05 23 Metal Fastening

05 10 00 Metal Materials

05 13 00 Stainless Steel

05 14 00 Structural Aluminum

05 51 33 Ladders

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05 52 00 Guards and Railings

05 53 00 Access Doors

05 56 00 Castings

DIVISION 07 − THERMAL AND MOISTURE PROTECTION

07 90 00 Joint Fillers, Sealants, and Caulking

DIVISION 31 − EARTHWORK

31 00 01 Earthwork

31 05 16 Aggregate Materials

31 05 17 Riprap

31 05 19 Geotextiles

31 09 00 Instrumentation

31 10 00 Clearing, Grubbing, and Site Preparation

31 23 19 Dewatering

31 23 24 Flowable Fill

31 25 00 Erosion and Sedimentation Control

31 52 00 Stream Diversion and Cofferdams

DIVISION 32 − EXTERIOR IMPROVEMENTS

32 11 00 Surface Restoration

32 90 00 Final Grading and Landscaping

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DIVISION 33 − UTILITIES

33 05 39.13 Prestressed Concrete Cylinder Pipe

33 05 61 Utility Structures

33 24 00 Storm Drains and Roof Drains

33 41 13 Foundation Drainage Systems

DIVISION 40 − PROCESS INTERCONNECTIONS

40 05 58 Gate Operators

40 05 59.33 Cast-Iron Slide Gates

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SECTION 01 11 00

SUMMARY OF WORK

PART 1 – GENERAL

1.01 SUMMARY

A. Section lncludes:

1. Summary

2. Location and Description of Work

3. Construction Contracts, This Project

4. Construction Contracts, Other Projects

5. Work by Others

6. Work by Owner

7. Owner Furnished Equipment and Materials

8. Owner Assigned Procurement Contracts

9. Owner Pre-selected Equipment and Materials

10. Sequence and Progress of Work

11. Contractor’s Use of Site

12. Easements and Rights-of-Way

13. Notices to Owners and Authorities of Properties Adjacent to the Work

14. Salvage of Equipment and Materials

15. Partial Utilization by Owner

1.02 LOCATION AND DESCRIPTION OF WORK

A. The Work is located at the following Site:

1. Hobby Hill Lake Dam, City of Richmond, Virginia

Latitude: 37.5424

Longitude: -77.5382

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B. The Work to be performed under this Contract includes, but is not limited to, constructing the work described below and all appurtenances related to the Work. The Work consists of the following:

1. Demolition and earthwork on the existing embankment will include:

a. site preparation, including, but not limited to: installation of erosion control measures, select tree removal, clearing and grubbing,

b. demolishing and removing the existing principal spillway riser structure and outlet pipe,

c. demolishing and removing the existing auxiliary spillway outlet pipes,

d. drilling out and grouting existing monitoring wells not saved during construction,

e. demolishing existing roadway asphalt pavement and portions of asphalt driveway,

f. removal of existing water main, gas main, and previously abandoned waterline,

g. removal of existing guard rail, wood privacy fence, and wire fence,

h. removal of woody vegetation and trees,

i. flattening portions of the remaining earthen embankment, and

j. removing existing fill materials and alluvium soil.

2. The rehabilitation will include the following new additions:

a. constructing a new principal spillway riser structure, two 54” outlet pipes, impact basin, and riprap outlet channel

b. installing a new seepage drainage system, including chimney drain, collar drain, blanket drain, foundation drain, and outlet pipes,

c. installing new storm drainage culverts with inlet and outlet head walls, drop inlet, and drainage manholes,

d. installing new ductile iron water main in concrete encasement,

e. installing eleven piezometers,

f. construction of riprap groin ditches, JULY 2026 01 11 00-3 HOBBY HILL

g. construction of wave protection and riprap armoring, and

h. any necessary appurtenances to the above listed structures, including but not limited to ladders, gates, hatches, grating, and guards.

3. During construction, it will be necessary to do the following work to protect planned construction:

a. dewatering,

b. stream diversion and cofferdams construction,

c. installation, maintenance, and removal of erosion, sediment, stormwater, and pollution control measures, and

d. maintenance of traffic.

1.03 CONSTRUCTION CONTRACTS, THIS PROJECT

A. The Contracts under which the Project will be constructed are:

1. Project Book

2. Work specified in Divisions 01 through 40 (inclusive) of the Technical

Specifications.

3. Work specified in the City of Richmond DPU Waterline Specifications.

4. Work specified in the Construction Drawings as follows:

a. Project Cover Sheet

b. Construction Drawings

c. Chesapeake Bay Site Plan Submittal Drawings CBPA-1 through CBPA-3

1.04 CONSTRUCTION CONTRACTS, OTHER PROJECTS (NOT USED)

1.05 WORK BY OTHERS

A. Proposed work on privately-owned utilities, including but not limited to telecommunications, fiber optic lines, electrical lines, etc., shall be performed by the utility owner, except that temporary support that does not require alteration of the utility shall be performed by Contractor if directed and / or approved by utility owner. The

Contractor shall be responsible for scheduling, coordinating, and providing notifications for all utility work.

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1.06 WORK BY OWNER

A. Owner will perform the following in connection with the Work: Operate existing valves, gates, equipment, and appurtenances that will affect Owner’s operation, unless otherwise specified or indicated.

1.07 OWNER-FURNISHED EQUIPMENT AND MATERIALS (NOT USED)

1.08 OWNER ASSIGNED PROCUREMENT DOCUMENTS (NOT USED)

1.09 OWNER PRE-SELECTED EQUIPMENT AND MATERIALS (NOT USED)

1.10 SEQUENCE AND PROGRESS OF WORK (NOT USED)

1.11 CONTRACTOR’S USE OF SITE

A. Contractors’ use of the Site shall be confined to the limits of disturbance shown.

Contractors shall share use of the Site with the Owner, other contractors, and others performing work for the Owner.

B. Contractor shall not enter, use, or restrict access to private driveways outside of the limits of disturbance shown. Contractor’s use of private driveways within the limits of disturbance shall be restricted to operations necessary to complete the Work.

C. Contractor shall move stored products that interfere with operations of Owner, other contractors, or others performing work for Owner.

1.12 EASEMENTS AND RIGHTS-OF-WAY

A. Easements and rights-of-way will be provided by Owner. Confine construction operations to within Owner’s property, public rights-of-way, easements obtained by

Owner, and the limits of disturbance shown. Use care in placing construction tools, equipment, excavated materials, and products to be incorporated into the Work to avoid damaging property and interfering with traffic. Do not enter private property outside the limits of disturbance without permission from the property owner and notification of

Engineer.

1.13 NOTICES TO OWNERS AND AUTHORITIES OF PROPERTIES ADJACENT TO THE

WORK

A. Notify Engineer, property owners, utility owners, and other concerned entities when execution of the Work may affect their property, facilities, or use of property.

B. Notify Engineer, utility owners, and other concerned entities at least 48 hours prior to cutting or closing streets or other traffic areas or excavating near Underground Facilities or exposed utilities.

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1.14 SALVAGE OF EQUIPMENT AND MATERIALS

A. Existing equipment and materials removed and not shown or specified to be reused in the Work will become the Contractor’s property.

B. Existing equipment and material removed by Contractor shall not be reused in the Work, except where specified or indicated.

C. Carefully remove in manner to prevent damage all equipment and materials specified or indicated to be salvaged and reused or to remain property of Owner. Store and protect salvaged items specified or indicated to be used in the Work. Replace in kind or with new items equipment, materials, and components damaged in removal, storage, or handling through carelessness or improper procedures.

D. Contractor may furnish and install new items, with Engineer’s approval, instead of those specified or indicated to be salvaged and reused, in which case such removed items will become Contractor’s property.

1.15 PARTIAL UTILIZATION BY OWNER

A. Owner reserves the right to enter and use portions of the Work prior to Certificate of

Substantial Completion is issued by Engineer.

B. Owner shall be responsible to prevent premature connections by private and public parties, persons or groups of persons, before Engineer issues Certificate of Substantial

Completion for the portion of Work being partially utilized by Owner.

C. Contractor shall cooperate with Owner, Owner’s agents, and Engineer to accelerate completion of Work designed for partial utilization by Owner in accordance with

Contractor’s progress schedule.

PART 2 – PRODUCTS (NOT USED)

PART 3 – EXECUTION (NOT USED)

END OF SECTION

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THIS PAGE INTENTIONALLY LEFT BLANK

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SECTION 01 20 00

MEASUREMENT AND PAYMENT

PART 1 – GENERAL

1.01 SUMMARY

A. Section lncludes:

1. Items listed in this Section refer to and are the same pay items listed in the Bid

Sheet and constitute all pay items for completing the Work.

2. Compensation for all services, items, materials, and equipment shall be included in prices stipulated for lump sum and add/deduct unit price pay items listed in this

Section and included in the Contract.

3. No direct or separate payment will be made for providing miscellaneous temporary or accessory works, bonds, insurance, or other requirements of the Project Book, General Requirements, and other requirements of the Contract Documents.

4. Each lump sum and add/deduct unit price shall include an amount considered by

Contractor to be adequate to cover Contractor’s overhead and profit for each separately identified item.

B. Related Sections:

1. Payments to Contractor: Refer to Project Book.

2. Changes to Contract Price: Refer to Project Book and Section 01 26 00 − Contract

Modification Procedures.

3. Schedule of Values: Refer to Project Book and Section 01 29 73 − Schedule of

Values.

1.02 ENGINEER’S ESTIMATE OF QUANTITIES

A. ENGINEER’S and OWNER’s estimated quantities for add/deduct unit price pay items, as listed in the Bid Sheet, are approximate only and are included solely for the purpose of comparison of Bids. Owner does not expressly or by implication agree that the nature of the materials encountered below the surface of the ground, or the actual quantities of material encountered or required, will correspond therewith and reserves the right to increase or decrease any quantity or to eliminate any quantity as Owner may deem necessary. Contractor will not be entitled to any adjustment in an add/deduct unit price as a result of any change in an estimated quantity and agrees to accept the aforesaid

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add/deduct unit prices as complete and total compensation for any additions caused by changes or alterations in the Work ordered by Owner.

1.03 ADMINISTRATIVE REQUIREMENTS

A. Contractor shall include all additional Work items, services, goods, resources, and labor necessary for installation of the Work to provide a completely functional system in accordance with the Contract Documents. Contractor shall include these costs associated with providing a completely functional system within the listed items on the

Bid Form and as specified herein.

B. No separate measurement and payment shall be made for coordination with and notifications to Owner, Engineer, utility owners, property owners, and residents as this is considered incidental to the Work.

C. No separate measurement and payment shall be made for completion and submittal of permit applications, payment of permit fees, preparation of supporting documents required for permitting, or permit compliance, as this is considered incidental to the

Work.

D. No separate measurement and payment shall be made for rework or repair due to damage; improper materials, means, or methods; or other such conditions caused by

Contractor, or his / her agents or subcontractors. Such Work shall be at Contractor’s expense.

E. Payment shall be made only for completed Work directed, performed, and accepted in accordance with applicable Reference Standards.

PART 2 – BID ITEMS

2.01 BASE BID

A. The Base Bid associated with the Proposal shall include all items necessary for a complete in-place Project in accordance with the contract documents, not including the other items specifically listed on the Bid Schedule.

B. This item shall be paid on a Job basis. As a continuing process, the amount will be paid to the Contractor based on an agreed to Schedule of Values for the items of Work that comprise the Base Bid. Monthly installments will be based on the percentage complete for each of the items of Work.

2.02 UNDERCUT – UPSTREAM

A. This item will be paid for by an Add/Deduct Unit Price that shall be full compensation for labor, tools, equipment, incidentals, and operations necessary to complete excavations

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including excavation, loading, hauling, offsite disposal, and compaction. The volume of backfill material shall be accounted for in Article 2.08 – Offsite Borrow of this Section.

B. The volume of this item will be based on the actual amount of material undercut, which is generally considered to be the undercut volume below the minimum depth below the control structure shown on the construction drawings to a depth that shall be determined and recommended by the Engineer.

C. Quantities will be based on the actual volume removed. Representatives of both the

Engineer and Contractor shall complete measurements of the work on a daily basis and agree on the pay quantities at the end of each workday.

D. No overlap of volume calculations due to the re-excavation of the temporary slopes created between adjoining individual undercut areas will be allowed. Essentially, the individual volume calculations will be based using the vertically projected footprint area at the base level of the individual undercut areas up to the original pre-excavation surface.

E. Over Excavating: Payment will not be made for over-excavated work or for replacement materials.

F. This item will be measured to the nearest cubic yard.

G. This item shall be bid on an Add/Deduct Unit Rate basis, payable upon completion, acceptance by the Engineer, and request for payment as required herein.

2.03 UNDERCUT – OUTLET PIPE

A. This item will be paid for by an Add/Deduct Unit Price that shall be full compensation for labor, tools, equipment, incidentals, and operations necessary to complete excavations including excavation, loading, hauling, offsite disposal, and compaction. The volume of backfill material shall be accounted for in Article 2.08 – Offsite Borrow of this Section.

B. The volume of this item will be based on the actual amount of material undercut, which is generally considered to be the undercut volume below the minimum depth below the outlet pipes shown on the construction drawings to a depth that shall be determined and recommended by the Engineer.

C. Quantities will be based on the actual volume removed. Representatives of both the

Engineer and Contractor shall complete measurements of the work on a daily basis and agree on the pay quantities at the end of each workday.

D. No overlap of volume calculations due to the re-excavation of the temporary slopes created between adjoining individual undercut areas will be allowed. Essentially, the individual volume calculations will be based using the vertically projected footprint area

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at the base level of the individual undercut areas up to the original pre-excavation surface.

E. Over Excavating: Payment will not be made for over-excavated work or for replacement materials.

F. This item will be measured to the nearest cubic yard.

G. This item shall be bid on an Add/Deduct Unit Rate basis, payable upon completion, acceptance by the Engineer, and request for payment as required herein.

2.04 UNDERCUT – DOWNSTREAM

A. This item will be paid for by an Add/Deduct Unit Price that shall be full compensation for labor, tools, equipment, incidentals, and operations necessary to complete excavations including excavation, loading, hauling, offsite disposal, and compaction. The volume of backfill material shall be accounted for in Article 2.08 – Offsite Borrow of this Section.

B. The volume of this item will be based on the actual amount of material undercut, which is generally considered to be the undercut volume below the embankment excavation limits shown on the construction drawings (Drawing C23 – Principal Spillway Profile, Drawing C24 Section A Profile and Section B Profile, and Drawing C25 Section C

Profile) to a depth that shall be determined and recommended by the Engineer.

C. Quantities will be based on the actual volume removed. Representatives of both the

Engineer and Contractor shall complete measurements of the work on a daily basis and agree on the pay quantities at the end of each workday.

D. No overlap of volume calculations due to the re-excavation of the temporary slopes created between adjoining individual undercut areas will be allowed. Essentially, the individual volume calculations will be based using the vertically projected footprint area at the base level of the individual undercut areas up to the original pre-excavation surface.

E. Over Excavating: Payment will not be made for over-excavated work or for replacement materials.

F. This item will be measured to the nearest cubic yard.

G. This item shall be bid on an Add/Deduct Unit Rate basis, payable upon completion, acceptance by the Engineer, and request for payment as required herein.

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2.05 FOUNDATION DRAIN EXTENSION

A. This item will be paid for by an Add/Deduct Unit Price that shall be full compensation for all labor, tools, equipment, materials, incidentals, and operations necessary to complete the Work including excavation, blended filter, material placement, compaction, and backfilling.

B. The volume of this item shall be computed by multiplying the width of foundation drain shown on the drawings by the length and depth of the actual installation of blended filter below the minimum depth of blended filter required for the seepage drain.

C. The depth will be based on the calculated average field depth with the maximum distance between measurements not to exceed 25 feet.

D. Representatives of both the Engineer and Contractor shall complete measurements of the Work installed on a daily basis and agree on the pay quantities at the end of each workday.

E. This item will be measured to the nearest cubic yard.

F. This item shall be bid on a Unit Rate basis, payable upon acceptance by the Engineer, and request for payment as required herein.

2.06 SEEPAGE DRAIN EXTENSION

A. This item will be paid for by an Add/Deduct Unit Price that shall be full compensation for all labor, tools, equipment, materials, incidentals, and operations necessary to complete the Work including excavation, fine filter, material placement, compaction, and backfilling.

B. The volume of this item shall be computed by multiplying the area of chimney drain beyond the right seepage drain cleanout shown on the drawings by the depth of the actual installation of fine filter.

C. Representatives of both the Engineer and Contractor shall complete measurements of the Work installed on a daily basis and agree on the pay quantities at the end of each workday.

D. This item will be measured to the nearest cubic yard.

E. This item shall be bid on a Unit Rate basis, payable upon acceptance by the Engineer, and request for payment as required herein.

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2.07 OUTLET CHANNEL RIPRAP PROTECTION ADDITIONAL AREA

A. This item will be paid for by an Add/Deduct Unit Price that shall be full compensation for all labor, tools, equipment, materials, incidentals, and operations necessary to complete the Work including riprap, stone filter, geotextile, material placement, fine grading, and subgrade compaction.

B. The area of this item will be based on the actual amount of additional Outlet Channel

Riprap Protection installed beyond the areas shown on the Drawings as recommended by the Engineer.

C. Representatives of both the Engineer and Contractor shall complete measurements of the Work installed on a daily basis and agree on the pay quantities at the end of each workday.

D. This item will be measured to the nearest square foot.

E. This item shall be bid on an Add/Deduct Unit Rate basis, payable upon completion, acceptance by the Engineer, and request for payment as required herein.

2.08 OFFSITE BORROW

A. The volume of this item will be based on the actual amount of material excavated for backfill and embankment construction sourced from an offsite borrow area. Such material shall only be used after approval from the Engineer and after all available and suitable fill from onsite has been used.

B. This item will be paid for by an Add/Deduct Unit Price and shall include all work related to the evaluation, permitting, clearing, grubbing, stripping, excavation, separation, loading, and hauling including all labor, materials, equipment, tools, and all other items necessary to complete the work as recommended by the Engineer.

C. All costs associated with opening, maintenance, and erosion and sediment control measures of the offsite borrow areas shall be included in the add/deduct unit price for

Offsite Borrow.

D. The Contractor shall complete initial field survey measurements of the borrow area after the topsoil has been removed. An updated field survey indicating the borrow excavation area, depths, and volumes shall be submitted to the Engineer for review and agreement prior to each application for payment.

E. This item will be measured to the nearest cubic yard excavated and approved by the

Engineer.

F. This item shall be bid on an Add/Deduct Unit Rate basis, payable upon acceptance by the Engineer, and request for payment as required herein.

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SECTION 01 25 00

SUBSTITUTION PROCEDURES

PART 1 – GENERAL

1.01 SUMMARY

A. Section includes:

1. Procedural requirements for product substitutions.

2. Procedural requirements for substitute construction methods or procedures, when construction methods or procedures are specified.

B. Requests for substitutions of equipment and material shall conform to the requirements of the Project Book.

C. Procedure for substitution requests and review including evaluation, reimbursement, acceptance, and determination shall be in accordance with Project Book.

1.02 REFERENCES

A. Definitions: The following words or terms are not defined but, when used in this Section, have the following meaning:

1. “Acceptable Manufacturers” considered for substitution include Suppliers of equipment and material of proven reliability, and as manufactured by reputable manufacturers having experience in the production of specified equipment and material. Equipment furnished shall be designed, constructed, and installed in accordance with the industry accepted practices and shall operate satisfactorily when installed in accordance with the Contract Documents.

2. “Products” includes materials, equipment, machinery, components, fixtures, systems, and other goods incorporated in the Work. Products do not include machinery and equipment used for preparing, fabricating, conveying, erecting, or installing the Work. Products include Owner-furnished goods incorporated in the

Work where use of such goods is specifically required in the Contract Documents.

1.03 ADMINISTRATIVE REQUIREMENTS

A. Contractor’s Responsibilities: In submitting request for substitution, Contractor represents that:

1. Contractor has investigated proposed substitution and determined that it is equivalent to item, product, method, or procedure specified, as applicable.

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2. Contractor will provide the same or better guarantees or warranties for proposed substitution as for the specified product, manufacturer, method, or procedure, as applicable.

3. Contractor waives all Claims for additional costs or extension of time related to proposed substitution that subsequently may become apparent.

4. Contractor shall submit a minimum of five (5) successful installations of the manufacturer’s equipment of the same model, size, and type as specified in the

Contract Documents.

B. Engineer’s Review: A proposed substitution will not be accepted for review if:

1. Approval would require changes in design concept or a substantial revision of the

Contract Documents.

2. Approval would delay completion of the Work or the work of other contractors.

3. Substitution request is indicated or implied on a Shop Drawing or other submittal, or on a request for interpretation or clarification, and is not accompanied by

Contractor’s formal request for substitution.

4. If the substitution is not clearly substantiated by performance criteria as providing an equivalent or superior performing installation.

C. If Engineer does not approve the proposed substitute, Contractor shall provide the specified product, manufacturer, method, or procedure, as applicable.

D. Approval of a substitution request will not relieve Contractor from requirement for submitting Shop Drawings as set forth in the Contract Documents.

E. Product Substitutions Procedure:

1. Requests for approval of substitute products or items will be considered for a period of 30 days after the Effective Date of the Agreement. After end of specified period, requests will be considered only in case of unavailability of a specified product or other conditions beyond Contractor’s control.

2. Submit copies of request for substitution.

3. Submit separate request for each substitution.

4. In addition to requirements of the Project Book and information required on substitution request forms, include with request the following:

a. Product identification, including manufacturer’s name and address.

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b. Manufacturer’s literature with product description, performance and test data, and reference standards with which product complies.

c. Samples, if appropriate.

d. Name and address of similar projects on which product was used, and date of installation.

e. Certified tests, where applicable, by an independent laboratory attesting the proposed substitution is equal.

f. Cost information for the proposed substitution and the specified products.

g. Lead time information for the proposed substitution and specified products.

h. All other submittal requirements indicated in the individual Specification

Sections associated with the specified equipment and material, including

Project Book.

F. Construction Methods Substitutions Procedures:

1. Where construction methods or procedures are specified, for a period of 30 days after the Effective Date of the Agreement, Engineer will consider Contractor’s written requests for substitute construction methods or procedures specified.

2. Submit copies of request for substitution.

3. Submit separate request for each substitution.

4. In addition to requirements of the Project Book and information required on substitution request forms, include with request the following:

a. Detailed description of proposed method or procedure.

b. Itemized comparison of the proposed substitution with the specified method or procedure.

c. Drawings illustrating method or procedure.

d. Other data required by Engineer to establish that proposed substitution is equivalent to specified method or procedure.

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PART 2 – PRODUCTS (NOT USED)

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SECTION 01 26 00

CONTRACT MODIFICATION PROCEDURES

PART 1 – GENERAL

1.01 THE REQUIREMENT

A. Section lncludes:

1. Project Book provision expansion, including the following:

a. Requests for interpretation

b. Field Orders

c. Work Change Directives

d. Proposal requests

e. Change Proposals

f. Change Orders

1.02 ADMINISTRATIVE REQUIREMENTS

A. Submit Contract modification documents to Engineer’s contact person and address in the Contract Documents.

B. Retain at Contractor’s office and at the Site complete copy of each Contract modification document and related documents, and Engineer’s response.

1.03 REQUEST FOR INTERPRETATION

A. General:

1. Submit electronic requests for interpretation to Engineer. Contractor and Owner may submit requests for interpretation.

2. Submit request for interpretation to obtain clarification or interpretation of the

Contract Documents. Report conflicts, errors, ambiguities, and discrepancies in the Contract Documents using requests for interpretation.

3. Do not submit request for interpretation when other form of communication is appropriate, such as submittals, requests for substitutions or “or equals”, notices, ordinary correspondence, or other form of communication. Improperly prepared or

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inappropriate requests for interpretation will be returned without response or action.

B. Procedure:

1. Submit one original (electronic) of each request for interpretation. Submit each request for interpretation with separate letter of transmittal if hard copies are submitted.

2. Engineer will provide timely review of requests for interpretation. Allow sufficient time for review and response.

3. Engineer will maintain log of requests for interpretation. Copy of log will be provided upon request.

4. Engineer will provide written response to each request for interpretation. One copy of Engineer’s response will be distributed to:

a. Contractor

b. Owner

c. Engineer

C. If Engineer requests additional information to make an interpretation, provide information requested within ten (10) days, unless Engineer allows additional time, via correspondence referring to request for interpretation number.

D. If Contractor or Owner believes that a change in the Contract Price or Contract Times or other change to the Contract is required, notify Engineer in writing before proceeding with the Work associated with the request for interpretation.

E. Submit each request for interpretation on a form acceptable to Engineer.

1. Number each request for interpretation as follows: Numbering system shall be the

Contract number and designation followed by a hyphen and three-digit sequential number.

2. In space provided on form, describe the interpretation requested. Provide additional sheets as necessary. Include text and sketches as required in sufficient detail for engineer’s response.

3. When applicable, request for interpretation shall include Contractor’s recommended resolution.

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1.04 FIELD ORDERS

A. General:

1. Field Orders, when required, will be initiated and issued by Engineer.

2. Field Orders authorize minor variations in the Work but do not change the Contract

Price or Contract Times.

3. Field Orders will be in the form of Engineers Joint Contract Documents Committee

(EJCDC) document C-942, “Field Order” or other Engineer’s accepted form.

4. Engineer will maintain a log of Field Orders issued.

B. Procedure.

1. Electronic copies of Field Orders will be maintained, stored, and distributed by electronic construction document management system.

2. If Contractor or Owner believes that a change in the Contract Price or the Contract

Times or other change to the Contract is required, immediately notify Engineer in writing before proceeding with the Work associated with the Field Order.

3. If the Field Order is unclear, submit request for interpretation.

1.05 WORK CHANGE DIRECTIVE

A. General:

1. Work Change Directives, when required, order additions, deletions, or revisions to the Work.

2. Work Change Directives do not change the Contract Price or Contract Times but are evidence that the parties to the Contract expect that the change ordered or documented by the Work Change Directive will be incorporated in subsequently issued Change Order following negotiations by the parties as to its effect, if any, on the Contract Price or Contract Times.

3. Work Change Directives will be in the form of EJCDC document C-940, “Work

Change Directive” or other Engineer’s accepted form.

B. Procedure:

1. Three originals of Work Change Directive signed by Owner and Engineer will be furnished to Contractor, who shall promptly sign each original Work Change

Directive and, within five days of receipt, return all originals to Engineer.

JULY 2026 01 26 00-4 HOBBY HILL

2. Original, signed Work Change Directives will be distributed as follows:

a. Contractor: One original

b. Owner: One original

c. Engineer: One original

3. When required by Engineer, document for the Work performed under each separate Work Change Directive, for each day, the number and type of workers employed and hours worked; equipment used including manufacturer, model, and year of equipment, and number of hours; materials used, receipts for and descriptions of materials and equipment incorporated into the Work, invoices and labor and equipment breakdowns for Subcontractors and Suppliers, and other information required by Owner or Engineer, in a format acceptable to Engineer.

Submit this documentation to Engineer as a Change Proposal.

1.06 PROPOSAL REQUESTS

A. General:

1. Proposal requests may be initiated by Engineer or Owner.

2. Proposal requests are for requesting the effect on the Contract Price and the

Contract Times and other information relative to contemplated changes in the

Work. Proposal requests do not authorize changes or variations in the Work, and do not change the Contract Price or Contract Times or terms of the Contract.

3. Proposal requests will be furnished using the proposal request form included with this Section.

B. Procedure.

1. One copy of each signed proposal request will be furnished to Contractor with one copy each to:

a. Owner

b. Engineer

2. Submit request for interpretation to clarify conflicts, errors, ambiguities, and discrepancies in proposal request.

3. Upon receipt of proposal request, Contractor shall prepare and submit a Change

Proposal, in accordance with this Section, for the proposed Work described in the proposal request.

JULY 2026 01 26 00-5 HOBBY HILL

1.07 CHANGE PROPOSALS

A. General.

1. Submit written Change Proposal to Engineer in response to each proposal request, and when Contractor believes a change in the Contract Price or Contract

Times or other change to the terms of the Contract is required.

B. Procedure.

1. Submit to Engineer one original and one copy of each Change Proposal with accompanying documentation, and simultaneously submit two copies to Owner.

Submit each Change Proposal with separate letter of transmittal.

2. Engineer will review Change Proposal and either request additional information from Contractor or provide to Owner recommendation regarding approval of the

Change Proposal.

3. When Engineer requests additional information to render a decision, submit required information within five days of receipt of Engineer’s request, unless

Engineer allows more time. Submit the required information via correspondence that refers to Change Proposal number.

4. Upon completing review, one copy of Engineer’s written response, if any, will be distributed to:

a. Contractor

b. Owner

c. Engineer

5. If Change Proposal is recommended for approval by Engineer and approved by

Owner, a Change Order will be issued.

6. If parties do not agree on terms for the change, Owner or Contractor may file a

Claim against the other, in accordance with the Project Book.

C. Each Change Proposal shall be submitted on a Change Proposal form acceptable to

Engineer.

1. Number each Change Proposal as follows: Numbering system shall be the

Contract number and designation followed by a hyphen and three-digit sequential number. Example: First Change Proposal for the general contract for project named “Contract 23” would be, “Proposal No. 23-001”.

2. In space provided on form:

JULY 2026 01 26 00-6 HOBBY HILL

a. Describe scope of each proposed change. Include text and sketches on additional sheets as required to provide detail sufficient for Engineer’s review and response. If a change item is submitted in response to proposal request, write in as scope, “In accordance with Change Proposal Request No.”

followed by the proposal request number. Provide written clarifications, if any, to scope of change.

b. Provide justification for each proposed change. If change is in response to proposal request, write in as justification, “In accordance with Change

Proposal Request No.” followed by the proposal request number.

c. List the total change in the Contract Price and Contract Times for each proposed change.

3. Unless otherwise directed by Engineer, attach to the Change Proposal detailed breakdowns of pricing (Cost of the Work and Contractor’s fee) including:

a. List of Work tasks to accomplish the change.

b. For each task, labor cost breakdown including labor classification, total hours per labor classification, and hourly cost rate for each labor classification.

c. Construction equipment and machinery to be used, including manufacturer, model, and year of manufacture, and number of hours for each.

d. Detailed breakdown of materials and equipment to be incorporated into the

Work, including quantities, unit costs, and total cost, with Supplier’s written quotations.

e. Breakdowns of the Cost of the Work and fee for Subcontractors, including labor, construction equipment and machinery, and materials and equipment incorporated into the Work, other costs, and Subcontractor fees.

f. Breakdown of other costs eligible, in accordance with the Project Book

g. Other information required by Engineer.

h. Contractor’s fees applied to eligible Contractor costs and eligible

Subcontractor costs.

1.08 CHANGE ORDERS

A. General:

JULY 2026 01 26 00-7 HOBBY HILL

1. Change Orders will be recommended by Engineer and signed by Owner, and

Contractor, to authorize additions, deletions, or revisions to the Work, or changes to the Contract Price or Contract Times.

2. Change Orders will be in the form of EJCDC document C-941, “Change Order” or other Engineer’s accepted form.

B. Procedure.

1. Three originals of each Change Order will be furnished to Contractor, who shall sign each original Change Order and return all originals to Engineer within five days of receipt.

2. Engineer will sign each original Change Order and forward them to Owner.

3. After approval and signature of all parties, three executed original copies will be returned to Engineer. Engineer will distribute as follows:

a. Contractor: One original

b. Owner: One original

c. Engineer: One original

PART 2 – PRODUCTS (NOT USED)

PART 3 – EXECUTION

3.01 SCHEDULE

A. 2013 EJCDC Form C-942, Field Order

B. 2013 EJCDC Form C-940, Work Change Directive

C. 2013 EJCDC Form C-941, Change Order

JULY 2026 01 26 00-8 HOBBY HILL

Field Order No.

Date of Issuance: Effective Date:

Owner: Owner’s Contract No.:

Contractor: Contractor’s Project No.:

Engineer: Engineer's Project No.:

Project: Contract Name:

Contractor is hereby directed to promptly execute this Field Order, issued in accordance with Contract

Documents, for minor changes in the Work without changes in Contract Price or Contract Times. If Contractor considers that a change in Contract Price or Contract Times is required, submit a Change Proposal before proceeding with this Work.

Reference:

Specification(s) Drawing(s) / Detail(s)

Description:

Attachments:

ISSUED: RECEIVED:

By: By:

Engineer (Authorized Signature) Contractor (Authorized Signature)

Title: Title:

Date: Date:

JULY 2026 01 26 00-9 HOBBY HILL

Work Change Directive No. _______

Date of Issuance: Effective Date:

Owner: Owner’s Contract No.:

Contractor: Contractor’s Project No.:

Contractor is directed to proceed promptly with the following change(s):

Attachments: [List documents supporting change]

Purpose for Work Change Directive:

Directive to proceed promptly with the Work described herein, prior to agreeing to changes on Contract Price and Contract Time, is issued due to: [check one or both of the following]

Non-agreement on pricing of proposed change.

Necessity to proceed for schedule or other Project reasons.

Estimated Change in Contract Price and Contract Times (non-binding, preliminary):

Contract Price $ [increase] [decrease].

Contract Time days

[increase] [decrease].

Basis of estimated change in Contract Price:

Lump Sum Add/Deduct Add/Deduct

Unit Price

Cost of the Work Other

RECOMMENDED: AUTHORIZED BY: RECEIVED:

By: By: By:

Engineer (Authorized Signature) Owner (Authorized Signature) Contractor (Authorized Signature)

Title: Title: Title:

Date: Date: Date:

JULY 2026 01 26 00-10 HOBBY HILL

Change Order No.

Date of Issuance: Effective Date:

Owner: Owner's Contract No.:

Contractor: Contractor’s Project No.:

The Contract is modified as follows upon execution of this Change Order:

Attachments: [List documents supporting change]

CHANGE IN CONTRACT PRICE CHANGE IN CONTRACT TIMES

[note changes in Milestones if applicable]

Original Contract Price: Original Contract Times:

Substantial Completion:

$ Ready for Final Payment:

days or dates

[Increase] [Decrease] from previously approved Change Orders

No. to No. :

[Increase] [Decrease] from previously approved Change Orders

No. to No. :

Substantial Completion:

$ Ready for Final Payment:

days

Contract Price prior to this Change Order: Contract Times prior to this Change Order:

Substantial Completion:

$ Ready for Final Payment:

days or dates

[Increase] [Decrease] of this Change Order: [Increase] [Decrease] of this Change Order:

Substantial Completion:

$ Ready for Final Payment:

days or dates

Contract Price incorporating this Change Order: Contract Times with all approved Change Orders:

Substantial Completion:

$ Ready for Final Payment:

days or dates

RECOMMENDED: ACCEPTED: ACCEPTED:

By: By: By:

Engineer (if required) Owner (Authorized Signature) Contractor (Authorized Signature)

Title: Title: Title:

Date: Date: Date:

JULY 2026 01 29 73-1 HOBBY HILL

SECTION 01 29 73

SCHEDULE OF VALUES

PART 1 – GENERAL

1.01 SUMMARY

A. Section lncludes:

1. General requirements for preliminary and final Schedule of Values.

2. Schedule of Values and the Progress Schedule updates specified in Section 01 32

00 − Construction Progress Schedule, shall be basis for preparing each

Application for Payment. Schedule of Values may be used as a basis for negotiating price of changes, if any, in the Work.

1.02 ADMINSTRATIVE REQUIREMENTS

A. General Requirements:

1. Schedule of Values shall include breakdown of costs for materials and equipment, installation, and other costs used in preparing the Bid by Contractor and each

Subcontractor. List purchase and delivery costs for materials and equipment for which Contractor may apply for payment as stored materials.

2. Include separate amounts for each Specification Section in the Contract

Documents by structure, and/or work area.

3. Identify each line item with number corresponding to the associated Specification

Section number. List sub-items of major products or systems, as appropriate or when requested by Engineer.

4. Include in Schedule of Values Add/Deduct Unit Price payment items with their associated quantity. Provide in the Schedule of Values detailed breakdown of

Add/Deduct Unit Prices when required by Engineer.

5. Include in Schedule of Values itemized list of Work for each major part of the

Contract, for each payment item specified in Section 01 20 00 – Measurement and

Payment.

6. Sum of individual values shown on the Schedule of Values shall equal the total of associated payment item. Sum of payment item totals in the Schedule of Values shall equal the Contract Price.

B. Specific Requirements:

JULY 2026 01 29 73-2 HOBBY HILL

1. Include in each line item a directly proportional amount of Contractor’s overhead and profit. Do not include overhead and profit as separate item(s).

2. Include separate line item for each allowance, and for each Add/Deduct Unit Price item.

3. Include line item for bonds and insurance in amount not exceeding two percent of the Contract Price. This may be applied for in the first Application for Payment.

4. Include items for permits (when applicable), construction Progress Schedule, and other items required by Engineer. Include such items in Applications for Payment on schedule accepted by Engineer

5. Line items for Site maintenance such as dust control, snow removal, compliance with storm water pollution prevention plans and permits, spill prevention control and countermeasures plans, and for construction photographic documentation;

temporary utilities and temporary facilities, field offices, temporary controls, field engineering, and similar Work shall be included in the Schedule of Values and proportioned in Applications for Payment throughout duration of the Work.

6. Include separate line items under each appropriate payment item for mobilization and demobilization. Document for Engineer the activities included in mobilization and demobilization line items.

a. Mobilization will be limited to two percent of the Contract Price, and will be paid in two payments, each of 50 percent of total amount for mobilization.

b. Demobilization shall be at least one percent of the Contract Price and shall be included with the Application for Payment following Substantial

Completion, or other schedule accepted by Engineer.

7. Costs for submittals, operations and maintenance manuals, field testing, and training of operations and maintenance personnel shall be as follows, unless otherwise accepted by Engineer:

a. Up to three percent of total cost of each item (including overhead and profit), including materials and equipment, and installation, may be apportioned to testing and included in the Application for Payment following Engineer’s acceptance of the associated written Site testing report(s).

C. Preliminary Schedule of Values: Submit preliminary Schedule of Values to Engineer for initial review. Contractor shall incorporate Engineer’s comments into the Schedule of

Values and resubmit to Engineer. Engineer may require corrections and re-submittals until Schedule of Values is acceptable.

D. Time Frame for Submittals:

JULY 2026 01 29 73-3 HOBBY HILL

1. Submit preliminary Schedule of Values within ten days of date that the Contract

Times commence running in accordance with the Notice to Proceed.

2. Submittal of the Schedule of Values shall be in accordance with the Project Book.

Engineer will not accept Applications for Payment without an acceptable Schedule of Values.

3. When required by Engineer, promptly submit updated Schedule of Values to include cost breakdowns for changes in the Contract Price.

1.03 SUBMITTALS

A. Submit the following:

1. One electronic copy of preliminary Schedule of Values submitted to Contractor, Engineer, and Owner.

2. One electronic copy of Schedule of Values submitted to Contractor, Engineer, and

Owner.

PART 2 – PRODUCTS (NOT USED)

JULY 2026 01 29 73-4 HOBBY HILL

JULY 2026 01 29 76-1 HOBBY HILL

SECTION 01 29 76

PROGRESS PAYMENT PROCEDURES

PART 1 – GENERAL

1.01 SUMMARY

A. Administrative and procedural requirements for progress payment to the Contractor by the Owner.

B. Related Sections:

1. Section 01 77 19 − Closeout Requirements.

1.02 ADMINSTRATIVE REQUIREMENTS

A. General: Contractor’s request for payment shall be in accordance with the Agreement, Project Book, and the Specifications.

B. Procedure:

1. Review with the Engineer quantities and the Work proposed for inclusion in each progress payment. Application for Payment shall cover only the Work and quantities recommended by the Engineer.

2. Submit to Engineer an electronic version of the complete Application for Payment and other documents to accompany the Application for Payment.

3. Engineer will act on request for payment in accordance with the Project Book

C. Requirements:

1. Completed Application for Payment form, including summary/signature page, progress estimate sheets, and stored materials summary. Progress estimate sheets shall have the same level of detail as the Schedule of Values.

2. For materials and equipment not incorporated in the Work but suitably stored, submit documentation in accordance with the Project Book. Legibly indicate on invoice or bill of sale the specific materials or equipment included in the payment request and corresponding bid/payment item number for each.

3. Contractor’s Affidavit is required for payment application and requests beginning with the second application for payment.

JULY 2026 01 29 76-2 HOBBY HILL

4. For payment requests that include payment for Work under an allowance, submit documentation acceptable to Owner of the authorization of allowance Work.

5. For payment requests (other than request for final payment) that include reduction or payment of retainage in an amount greater than that required in the Contract

Documents, submit on…