12363N25Q4227 RFQ-.pdf

FOR OFFICIAL USE ONLY

USDA FOREST SERVICE

Stewardship Branch

Combined Synopsis and Solicitation Request for Quote # 12363N25Q4227

**MUST BE REGISTERED IN SAM (www.sam.gov) TO BE ELIGIBLE FOR AWARD**

Title: Beaver Lake Dam Rehabilitation Contract Type: Firm Fixed Price Award Type: BPA Call Award Determination: Best Value Place of Performance: Mark Twain NF Period of Performance: 09/30/2025 to 02/15/2026

In accordance with FAR Part 13, The USDA Forest Service is issuing a Request for Quote (RFQ) for Beaver Lake Dam Rehabilitation located on the Mark Twain National Forest.

Quotes will be submitted in accordance with the instructions set forth in this document. Failure to comply with any and/or all of the instructions set forth in this document may result in the offer’s quote not being considered.

Payment will be made via EFT. Invoice using IPP.Gov FOB: Destination Origin Set Aside For: Large Small

Woman- Owned SDVOSB Hubzone 8(a)

(Please check all that apply) x

NAICS Code: 237310 Size Standard: $45 Million

Delivery address

Date and time needed

**MUST HAVE ALL INFO BELOW**

Company Name:

Vendor Rep:

Phone:

Email:

Mailing Address:

UEI SAM #

**QUOTES ARE DUE BY: 09/17/2025 by 11:00AM CST** Questions are due by COB 09/10/2025

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 1 of 847 http://www.sam.gov/

FOR OFFICIAL USE ONLY

CONTRACTING OFFICER’S REPRESENTATIVE (COR)

A COR will be designated to represent the Contracting Officer for the duration of this task order. The COR is not authorized to make any commitments or changes that will affect price, quality, quantity, delivery, or any other term or condition of the contract.

Please contact the COR if you have difficulties setting up the site visit.

Thomas Tran Contracting Officer Forest Service Procurement and Property Services (PPS) E-mail: thomas.tran2@usda.gov

Offerors shall quote in accordance with the SOW. Please provide your price and technical proposal separately.

Proposals that do not have a technical proposal and past performance may not be considered.

Quotes shall be valid for a minimum of 60 calendar days after submission.

Please label file name by format below:

Company name, price or technical proposal or both and name of project Ex. USDA Price Proposal Government Work

RETURN TO:

USDA/FS-

ATTN:

Thomas Tran thomas.tran2@usda.gov

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 2 of 847

BEAVER LAKE DAM REHABILITATION Section B

Pg. 1

SECTION B SCHEDULE OF ITEMS

BEAVER LAKE DAM REHABILITATION

POPLAR BLUFF RANGER DISTRICT

MARK TWAIN NATIONAL FOREST

STATE OF MISSOURI

BASE ESTIMATE

FP-14

Section

Pay Item Description Estimated

Qty Unit Total Price

151 Mobilization and Demobilization 1 LS $_______________

152 Construction Surveying & Staking 1 LS $_______________

153 Contractor Quality Control 1 LS $_______________

Sec 204 Sampling & Testing - Excavation & Embankment (Per FP-14 Table 204-1)

1 LS $_______________

Sec 209 Sampling & Testing - Structure Excavation & Backfill (Per FP- 14 Table 209-1)

1 LS $_______________

Sec 601 & 614 Sampling & Testing - Cast-in-place Concrete (Per FP-14 Table 552-9; Only Compressive Strength on 3 Test Cylinders: 1 @ 7 & 2@ 28 days)

1 LS $_______________

155 Schedules for Construction Contracts 1 LS $_______________

157 Soil Erosion and Sediment Control and Lake Drawdown 1 LS $_______________

201 Clearing and Grubbing 0.3 ACRE $_______________

203 Removal of Structures & Obstructions (Removal of Existing Pipe, Drain Structure, and appurtenances)

1 LS $_______________

204 Excavation & Embankment (Overflow Pipe Replacement) 700 CY LS $_______________

207 Earthwork Geosynthetics (Filter Fabric for Outfall Riprap)

500 SY LS $_______________

209 Structure Excavation & Backfill 43 CY LS $_______________

252 Rockery (Outfall Pipe Plunge Pool) 20 CY LS $_______________

255 Mechanically Stabilized Earth Walls 320 SF LS $_______________

601 Minor Concrete Structures (Outfall Headwall)

1 LS $_______________

602 Culverts & Drains (18” Low Pressure Concrete Pipe)

104 LF LS $_______________

604 Manholes, Inlets & Catch Basins (CS 1 1 LS $_______________

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 3 of 847

BEAVER LAKE DAM REHABILITATION Section B

Pg. 2

FP-14

Section

Pay Item Description Estimated

Qty Unit Total Price

Lake Drawdown Structure Sluice Gate)

605 Underdrains, Sheet Drains, and Pavement Edge Drains (Granular Filter Drain)

40 LF LS $_______________

624/625 Topsoil and Turf Establishment 1 LS $_______________

717 Structural Metal (18” Rodent Protection and Trash Rack) 1 LS $_______________

718 Traffic Signing and Marking (Confined Space Signage) 1 LS $_______________

TOTAL BASE BID ESTIMATE $_____________

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 4 of 847

EVALUATION CRITERIA:

TECHNICAL PROPOSAL INSTRUCTIONS (Listed below are examples of instructions and criteria for information only.)

General

Proposals shall be submitted in two parts: a technical proposal and a price proposal. Each part shall be separate and complete in itself so that evaluation of one may be accomplished independently of the other. The price proposal shall be submitted with the solicitation forms.

Offerors are cautioned that sufficient and detailed information must be presented in their proposals to enable the Government to evaluate their proposals fully in accordance with the evaluation and award criteria contained herein. The Government is not obligated to ask for additional information and in the absence of appropriate information, the proposal will be rated deficient.

Price Proposal

A completed schedule of items with pricing information completes this requirement.

Technical Proposal

Offerors shall submit technical information for their firm and any proposed major subcontractors. Performance information may be obtained from references provided in the base BPA. Also, the offeror shall submit information that illustrates a technical understanding of the work to be performed.

1) Relevant Past Performance:

Relevant Past Performance shall be obtain from the base Blaket Purchase Agreement (BPA) and utilized for evaluation on this call order.

(2) Technical Approach:

All offerors should show a high level of understanding of the work to be performed. This can be accomplished by submitting with the proposal the following information:

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 5 of 847

1. Description of how the work will be performed

2. Schedule (accomplishing work while meeting weather conditions)

3. List of equipment to be used

(3) Cost or Price: A completed schedule of items with subsequent pricing information completes this requirement.

EVALUATION CRITERIA

Technical Evaluation Criteria

Technical proposals will be evaluated and rated by a Technical Evaluation Panel. Proposals shall be prepared in accordance with the proposal preparation instructions. The following factors and their associated sub-factors will be used in the technical evaluation process are listed below: Relevant Past Performance and Technical approach of work to be performed.

1) Relevant Past Performance:

a) Relevant Past Performance shall be obtained from the base Blanket Purchase Agreement (BPA) and utilized for evaluation on this call order.

2) Technical Approach:

b) Understanding of Proposed Work: Offeror demonstrates a technical understanding of the proposed work including but not limited to preliminary scheduling, equipment requirements, site conditions and location, project challenges, and material requirements.

(3) Acceptability:

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 6 of 847

We will view the acceptability of each offer on a pass or fail criteria. An offeror’s documented response to the solicitation will not be deemed acceptable, if not received by the specified closing date and time, and the submitted proposal not clearly demonstrate the offerors understanding the needed work. In such cases the offeror will be viewed as having “failed” this criterion and will not be considered for award. An acceptable offer will receive a “pass” rating and will then be evaluated solely on price.

(4) Cost or Price:

Each acceptable offer will be evaluated for reasonableness of proposal price. This criterion will include consideration of cost information provided. It is the Government's intent to assess the unit prices to determine reasonableness and offeror's understanding of the work and ability to perform the contract. The importance of price may become greater as the differences between technical proposals decrease. Where technical proposals are determined to be substantially equal, price may control award.

(b) Award. A written notice of award or acceptance of an offer, mailed or otherwise furnished to the successful offeror within the time for acceptance specified in the offer, shall result in a binding contract without further action by either party. Before the offer’s specified expiration time, the Government may accept an offer (or part of an offer), whether or not there are negotiations after its receipt, unless a written notice of withdrawal is received before award.

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 7 of 847

FROM POPLAR BLUFF TAKE US-60W TO C.R. 411/HWY PP (8.8 MI). TURN LEFT ON 411/PP

AND PROCEED 1.6 MILES. TURN RIGHT ON C.R. 435 THEN IMMEDIATELY RIGHT AGAIN

ON C.R. 426 FOR 1.2 MILES. AT TEE, STAY STRAIGHT ON C.R.428 FOR 2.4 MILES. AT

TEE, TURN LET ON C.R. 436 FOR 0.8 MILES.TURN RIGHT ONTO FSR 3899 AND PROCEED

0.3 MILES TO BEAVER LAKE.

36.801777 N, 90.622492 W.

FOREST LOCATION MAP

PROJECT LOCATION MAP

TRAVEL DIRECTIONS:

SHEET OF

United States Department of Agriculture Forest Service

BEAVER LAKE

DAM REHABILITATION

RECOMMENDED BY:

APPROVED:

FOREST ENGINEER

DISTRICT RANGER DATE

DATE

DIRECTOR OF ENGINEERING DATE

FOREST SUPERVISOR DATE

RO DAM PROGRAM MANAGER DATE

5/ 7/

2:

R O

B

ER

TC

O

N A

W A

Y C

PR

O

JE

C

TS

\P O

PL

A

R B

LU

FF

\B

EA

VE

R

L A

K E\

D R

A W

IN

G

S\ B

EA

VE

R L

A K

E M

O D

3-

.D W

G

STATE OF MISSOURI

BUTLER COUNTY

EASTERN REGION

MARK TWAIN NATIONAL FOREST

POPLAR BLUFF RANGER DISTRICT

INDEX OF SHEETS

SHEET SHEET TITLE DATE

G-01 COVERSHEET 11/19/24

C-01 EXISTING CONDITIONS 11/19/24

C-02 OVERALL PLAN 11/19/24

C-03 CULVERT REPLACEMENT PLAN AND PROFILE 11/19/24

C-04 CULVERT EXCAVATION CROSS SECTIONS 11/19/24

C-05 CULVERT AND CONTROL STRUCTURE DETAILS 11/19/24

C-06 RETAINING WALL DETAILS 11/19/24

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 8 of 847

CP 100

X: 783962.49 Y: 352036.70

Z: 564.13

CP 101

X: 783831.15 Y: 352271.67 Z: 563.15

EXISTING 15" CMP

TO BE REMOVED

FL=541.8

EXISTING VALVES AND

STRUCTURE TO BE

REMOVED. FL=551.2

FSR 3899

C .R

CP 1000

X: 784114.06 Y: 351845.29 Z: 564.46

CURRENT WATER SURFACE

ELEVATION = 551.2'.

PROPOSED WATER SURFACE

ELEVATION = 558.0.

(500)

STANDARD LEGEND

CONTROL POINT

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/ 7/

2:

R O

B

ER

TC

O

N A

W A

Y C

PR

O

JE

C

TS

\P O

PL

A

R B

LU

FF

\B

EA

VE

R

L A

K E\

D R

A W

IN

G

S\ B

EA

VE

R L

A K

E M

O D

3-

.D W

G

R09

EASTERN REGION

BEAVER LAKE

DAM

REHABILITATION

MARK TWAIN NATIONAL

FOREST

POPLAR BLUFF RANGER DISTRICT

EXISTING CONDITIONS

RKC

RKC

AW

Feet

0 100 200

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 9 of 847

CP 100

X: 783962.49 Y: 352036.70

Z: 564.13

CP 101

X: 783831.15 Y: 352271.67 Z: 563.15

0+00

0+50

1+00

1+50

1+86

EXCAVATE AND INSTALL NEW

18" RCPP,

LEVEL CONTROL STRUCTURE

AND FILTER DRAIN.

SEE SHEETS C-O3 - C-06

1+

1+

1+

1+

0+

0+

0+

12" Oak

20" Pine

24" PINE

24" PINE

24" PINE

18" PINE

18" PINE

CP 1000

X: 784114.06 Y: 351845.29 Z: 564.46

EXISTING BOAT ACCESS

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/ 7/

3:

R O

B

ER

TC

O

N A

W A

Y C

PR

O

JE

C

TS

\P O

PL

A

R B

LU

FF

\B

EA

VE

R

L A

K E\

D R

A W

IN

G

S\ B

EA

VE

R L

A K

E M

O D

3-

.D W

G

R09

EASTERN REGION

BEAVER LAKE

DAM

REHABILITATION

MARK TWAIN NATIONAL

FOREST

POPLAR BLUFF RANGER DISTRICT

OVERALL PLAN

RKC

RKC

AW

Feet

0 40 80

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 10 of 847

E L

E V

A T

IO

N

F

E E

T

E L

E V

A T

IO

N

F

E E

T

0+000+501+001+501+86

40 LF OF GRANULAR FILTER DRAIN

SEE DETAIL SHEET C-06

RIPRAP PLUNGE POOL PER

DETAIL SHEET C-06

PROPOSED WATER SURFACE

ELEVATION = 558.0

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/ 7/

3:

R O

B

ER

TC

O

N A

W A

Y C

PR

O

JE

C

TS

\P O

PL

A

R B

LU

FF

\B

EA

VE

R

L A

K E\

D R

A W

IN

G

S\ B

EA

VE

R L

A K

E M

O D

3-

.D W

G

R09

EASTERN REGION

BEAVER LAKE

DAM

REHABILITATION

MARK TWAIN NATIONAL

FOREST

POPLAR BLUFF RANGER DISTRICT

CULVERT REPLACEMENT

PLAN AND PROFILE

RKC

RKC

AW

Feet 0 20 40

CONSTRUCT 2-EA 32' MODULAR

RETAINING WALLS. SEE SHEET C-07

INSTALL RIPRAP MIN 6' WIDE

2' BELOW OPENING.

EXCAVATION CONTOURS SHOWN FOR OSHA

COMPLIANCE WITHOUT TRENCHBOX. REPLACE

EXCAVATED MATERIAL, COMPACTING TO 95%

SPD IN LIFTS PER SPECIFICATIONS. PLACE 4"

OF TOPSOIL, SEED AND MULCH.

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 11 of 847

1+00.00

0 10 200-10-20

0+80.00

0 10 200-10-20

0+60.00

0 10 200-10-20

0+40.00

0 10 200-10-20

1+52.80

0 10 200-10-20

0+38.10

0 10 200-10-20

1+20.00

0 10 200-10-20

1+40.00

0 10 200-10-20

Culvert Excavation Volume Table (Cubic Yards)

Station

0+38.10

0+40.00

0+60.00

0+80.00

1+00.00

1+20.00

1+40.00

1+52.80

Fill Area

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.02

Cut Area

107.99

133.98

110.02

264.67

379.19

144.49

30.26

2.45

Fill Volume

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.01

Cut Volume

0.00

8.51

90.37

138.77

238.47

193.95

64.72

7.75

Cumulative Fill Vol

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.01

Cumulative Cut Vol

0.00

8.51

98.88

237.66

476.12

670.08

734.80

742.55

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/ 7/

3:

R O

B

ER

TC

O

N A

W A

Y C

PR

O

JE

C

TS

\P O

PL

A

R B

LU

FF

\B

EA

VE

R

L A

K E\

D R

A W

IN

G

S\ B

EA

VE

R L

A K

E M

O D

3-

.D W

G

R09

EASTERN REGION

BEAVER LAKE

DAM

REHABILITATION

MARK TWAIN NATIONAL

FOREST

POPLAR BLUFF RANGER DISTRICT

CULVERT EXCAVATION

CROSS SECTIONS

RKC

RKC

AW

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 12 of 847

AA

FINE DRAIN FILL

MATERIAL

COARSE DRAIN

FILL MATERIAL

SECTION OF FILTER DRAIN - OUTLET PIPE

STANDARD

SIEVE SIZE

FINE FILL

LIMITS

1" 3/4" 1/2" 3/8" #4 #8 #16 #30 #50 #100 #200

96-100 80-100 50-85 25-60 5-30 0-10 0-3

75-100 40-80 20-50 0-30 0-15

COARSE FILL

LIMITS

DRAIN FILL MATERIAL

9" 9"

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/ 7/

3:

R O

B

ER

TC

O

N A

W A

Y C

PR

O

JE

C

TS

\P O

PL

A

R B

LU

FF

\B

EA

VE

R

L A

K E\

D R

A W

IN

G

S\ B

EA

VE

R L

A K

E M

O D

3-

.D W

G

R09

EASTERN REGION

BEAVER LAKE

DAM

REHABILITATION

MARK TWAIN NATIONAL

FOREST

POPLAR BLUFF RANGER DISTRICT

CULVERT AND CONTROL

STRUCTURE DETAILS

RKC

RKC

AW

RIPRAP PLUNGE POOL

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 13 of 847

SIDE WALL TRASH RACK

1 1

101 IRONWOOD ROAD

MIDDLESBORO, KY 40965

PH: (606) 248-5560

FAX: (606) 248-6308

JRHOE.COM

MADE IN THE U.S.A.

ACCEPTABLE MATERIALS:

6061-T6 ALUMINUM

TITLE:

SIZE DWG. NO.

REV.

SHEET /

8' x 5'-4", 8" OPENING

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/ 7/

3:

R O

B

ER

TC

O

N A

W A

Y C

PR

O

JE

C

TS

\P O

PL

A

R B

LU

FF

\B

EA

VE

R

L A

K E\

D R

A W

IN

G

S\ B

EA

VE

R L

A K

E M

O D

3-

.D W

G

R09

EASTERN REGION

BEAVER LAKE

DAM

REHABILITATION

MARK TWAIN NATIONAL

FOREST

POPLAR BLUFF RANGER DISTRICT

RETAINING WALL

DETAILS

RKC

RKC

AW

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 14 of 847

FP-14 SUPPLEMENTAL SPECIFICATIONS FOR BEAVER LAKE

DAM REHABILITATION

PREFACE

PREFACE_WO_08_25_2022

DELETE ALL BUT THE FIRST PARAGRAPH AND ADD THE FOLLOWING:

THE FOREST SERVICE, US DEPARTMENT OF AGRICULTURE HAS ADOPTED FP-14 WITH

THE FOLLOWING SUPPLEMENTAL SPECIFICATION FOR CONSTRUCTION IMPROVEMENTS

TO STERLING HOLLOW DAM.

101 - TERMS¸ FORMAT¸ AND DEFINITIONS

101.01_NATIONAL_9_15_2016

ADD THE FOLLOWING PARAGRAPH TO SUBSECTION 101.01:

101.01 MEANING OF TERMS.

DELETE ALL REFERENCES TO THE TAR (TRANSPORTATION ACQUISITION REGULATIONS) IN THE

SPECIFICATIONS.

101.03_NATIONAL_4_7_2015

ADD THE FOLLOWING TO SUBSECTION 101.03:

101.03 ABBREVIATIONS.

ADD THE FOLLOWING:

(A) ACRONYMS.

AGAR — AGRICULTURE ACQUISITION REGULATIONS

FSAR — FOREST SERVICE ACQUISITION REGULATIONS

MSHA — MINE SAFETY AND HEALTH ADMINISTRATION

NESC — NATIONAL ELECTRICAL SAFETY CODE

(F) MISCELLANEOUS UNIT ABBREVIATIONS.

MP — MILEPOST LOCATION

PPM — PARTS PER MILLION VOLUME

STA STATION LOCATION

101.04_NATIONAL_9_5_2018

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 15 of 847

MAKE THE FOLLOWING CHANGES TO SUBSECTION 101.04:

DELETE THESE DEFINITIONS AND REPLACE THE FOLLOWING:

BID SCHEDULE — THE SCHEDULE OF ITEMS.

BRIDGE — A STRUCTURE, INCLUDING SUPPORTS, ERECTED OVER A DEPRESSION OR AN OBSTRUCTION SUCH AS WATER ALONG A ROAD, A TRAIL, OR A RAILWAY AND HAVING A DECK FOR CARRYING TRAFFIC

OR OTHER LOADS.

CONTRACTOR — THE INDIVIDUAL OR LEGAL ENTITY CONTRACTING WITH THE GOVERNMENT FOR

PERFORMANCE OF PRESCRIBED WORK. IN A TIMBER SALE CONTRACT, THE CONTRACTOR IS THE

“PURCHASER”.

CULVERT — ANY STRUCTURE WITH A BOTTOM, REGARDLESS OF FILL DEPTH, DEPTH OF INVERT BURIAL, OR PRESENCE OF HORIZONTAL DRIVING SURFACE, OR ANY BOTTOMLESS (NATURAL CHANNEL)

STRUCTURE WITH FOOTINGS THAT WILL NOT HAVE WHEEL LOADS IN DIRECT CONTACT WITH THE TOP

OF THE STRUCTURE.

DRAWINGS — (PUBLIC WORKS CONTRACTS) DESIGN SHEETS OR FABRICATION, ERECTION, OR

CONSTRUCTION DETAILS SUBMITTED TO THE CO BY THE CONTRACTOR ACCORDING TO FAR CLAUSE 52.236-21 SPECIFICATIONS AND DRAWINGS FOR CONSTRUCTION. ALSO REFERS TO SUBMISSIONS AND

SUBMITTALS.

NOTICE TO PROCEED — (PUBLIC WORKS CONTRACTS) WRITTEN NOTICE TO THE CONTRACTOR TO

BEGIN THE CONTRACT WORK.

RIGHT-OF-WAY — A GENERAL TERM DENOTING (1) THE PRIVILEGE TO PASS OVER LAND IN SOME PARTICULAR LINE (INCLUDING EASEMENT, LEASE, PERMIT, OR LICENSE TO OCCUPY, USE, OR TRAVERSE PUBLIC OR PRIVATE LANDS), OR (2) REAL PROPERTY NECESSARY FOR THE PROJECT, INCLUDING

ROADWAY, BUFFER AREAS, ACCESS, AND DRAINAGE AREAS.

SOLICITATION— (PUBLIC WORKS CONTRACTS) THE COMPLETE ASSEMBLY OF DOCUMENTS (WHETHER

ATTACHED OR INCORPORATED BY REFERENCE) FURNISHED TO PROSPECTIVE BIDDERS.

ADD THE FOLLOWING DEFINITIONS:

ADJUSTMENT IN CONTRACT PRICE — “EQUITABLE ADJUSTMENT,” AS USED IN THE FEDERAL

ACQUISITION REGULATIONS, OR “CONSTRUCTION COST ADJUSTMENT,” AS USED IN THE TIMBER SALE

CONTRACT, AS APPLICABLE.

CHANGE — “CHANGE” MEANS “CHANGE ORDER” AS USED IN THE FEDERAL ACQUISITION

REGULATIONS, OR “DESIGN CHANGE” AS USED IN THE TIMBER SALE CONTRACT.

FOREST SERVICE — THE UNITED STATES OF AMERICA, ACTING THROUGH THE FOREST SERVICE, U.S.

DEPARTMENT OF AGRICULTURE.

NEAT LINE — A LINE DEFINING THE PROPOSED OR SPECIFIED LIMITS OF AN EXCAVATION OR

STRUCTURE.

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 16 of 847

PIONEER ROAD — TEMPORARY CONSTRUCTION ACCESS BUILT ALONG THE ROUTE OF THE PROJECT.

PROTECTED STREAMCOURSE — A DRAINAGE SHOWN ON THE PLANS OR TIMBER SALE AREA MAP THAT

REQUIRES DESIGNATED MITIGATION MEASURES.

ROAD ORDER — AN ORDER AFFECTING AND CONTROLLING TRAFFIC ON ROADS UNDER FOREST SERVICE JURISDICTION. ROAD ORDERS ARE ISSUED BY A DESIGNATED FOREST OFFICER UNDER THE AUTHORITIES

OF 36 CFR, PART 260.

SHOP DRAWINGS — (TIMBER AND STEWARDSHIP CONTRACTS) REFERRED TO AS “DRAWINGS” IN FP-14, INCLUDES DRAWINGS, DIAGRAMS, LAYOUTS, SCHEMATICS, DESCRIPTIVE LITERATURE, ILLUSTRATIONS, LISTS OR TABLES, PERFORMANCE AND TEST DATA, AND SIMILAR MATERIALS FURNISHED BY PURCHASER

TO EXPLAIN IN DETAIL SPECIFIC PORTIONS OF THE WORK REQUIRED BY THE CONTRACT.

102 - BID¸ AWARD¸ AND EXECUTION OF CONTRACT

102.00_NATIONAL_9_15_2016

DELETE SECTION 102 IN ITS ENTIRETY.

103 - SCOPE OF WORK

103.00_NATIONAL_9_15_2016

DELETE SECTIONS 103.02, 103.03, 103.04, 103.05.

ADD THE FOLLOWING TO SECTION 103.01.

THE WORK SHOWN IN THE PLANS AND SPECIFICATIONS INCLUDE THE FOLLOWING:

BASE BID – MAKING IMPROVEMENTS AS NECESSARY TO DRAW DOWN WATER LEVELS, CLEAR AND

GRUB, EXCAVATE AND REMOVE EXISTING OVERFLOW CONDUIT AND APPURTENANCES; INSTALLATION OF A NEW OVERFLOW CONDUIT, LEVEL CONTROL STRUCTURE AND APPURTENANCES; REGRADING AND RIPRAP ARMORING OF THE EXISTING SPILLWAY; RECONSTRUCTION OF MISCELLANEOUS ACCESS ROADS

AND INSTALLATION OF ARTICULATED CONCRETE MAT BOAT RAMP.

OPTIONAL BID ITEM 1 – CONSTRUCTION OF A NEW PERMANENT SPILLWAY WITH ROCKERY

STRUCTURES AND VOID FILLED RIPRAP.

104 - CONTROL OF WORK

DELETE SUBSECTIONS 104.01, 104.02, AND 104.04.

104.06_NATIONAL_9_16_2016

ADD THE FOLLOWING AS SUBSECTION 104.06:

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 17 of 847

104.06 USE OF ROADS BY CONTRACTOR.

THE CONTRACTOR IS AUTHORIZED TO USE ROADS UNDER THE JURISDICTION OF THE FOREST SERVICE FOR ALL ACTIVITIES NECESSARY TO COMPLETE THIS CONTRACT, SUBJECT TO THE LIMITATIONS AND AUTHORIZATIONS DESIGNATED IN THE ROAD ORDER(S) OR DESCRIBED IN THE CONTRACT, WHEN SUCH USE WILL NOT DAMAGE THE ROADS OR NATIONAL FOREST RESOURCES, AND WHEN TRAFFIC CAN BE

ACCOMMODATED SAFELY. CONTRACTOR SHALL MAINTAIN THE ROADWAYS USED TO ACCESS THE

WORK FOR THE DURATION OF THE CONTRACT.

105 - CONTROL OF MATERIAL

105.05_NATIONAL_6_29_2020

105.05 USE OF MATERIAL FOUND IN THE WORK.

DELETE 105.05 (A) AND (B) AND THE LAST SENTENCE OF THE SECOND PARAGRAPH AND SUBSTITUTE

THE FOLLOWING:

MATERIALS PRODUCED OR PROCESSED FROM GOVERNMENT LANDS IN EXCESS OF THE QUANTITIES REQUIRED FOR PERFORMANCE OF THIS CONTRACT ARE THE PROPERTY OF THE GOVERNMENT. PLACE

EXCESS MATERIAL SAFELY AT GOVERNMENT-APPROVED LOCATION, AT NO ADDITIONAL COST TO

GOVERNMENT.

ADD THE FOLLOWING AS SUBSECTION 105.07:

105.07 LEAD FREE AGGREGATE & ROCK.

ANY STONE SOURCED FROM ANY THE FOLLOWING COUNTIES IN SOUTHEAST MISSOURI WILL NEED TO BE TESTED: CRAWFORD, DENT, SHANNON, WASHINGTON, IRON, REYNOLDS, MADISON, ST. FRANCOIS, ST. GENEVIEVE, AND BOLLINGER COUNTIES. IF STONE IS SOURCED FROM A COUNTY NOT LISTED, IT WILL NOT HAVE TO BE TESTED, HOWEVER CONTRACTOR MUST PROVIDE TICKETS OR INVOICES THAT

CLEARLY SHOW WHERE THOSE MATERIALS WERE SOURCED FROM.

MATERIALS FROM THESE AREAS SHOULD BE VISUALLY INSPECTED TO ENSURE THAT NO HAZARDOUS MINERALIZATION IS PRESENT. MINERALIZATION INCLUDING GALENA, SPHALERITE, AND CHALCOPYRITE

SHOULD NOT BE PRESENT IN ANY MATERIALS PLACED ON NATIONAL FOREST SYSTEMS LANDS.

AGGREGATE AND/OR RIP RAP THAT DOES NOT CONTAIN MATERIAL IN THE <2MM FRACTION (PASSES A #10 SIEVE) MAY ONLY NEED TO BE SUBJECT TO VISUAL INSPECTION. AGGREGATE AND/OR RIP RAP THAT CONTAINS MATERIAL IN THE <2MM FRACTION (PASSES A #10 SIEVE) WILL NEED TO BE SAMPLED TO ENSURE THAT THE MATERIAL DOES NOT EXCEED 100 PARTS PER MILLION (PPM) FOR LEAD (PB). THE

METHODS AND EQUIPMENT USED FOR SAMPLING MATERIALS WILL VARY WITH THE FORM AND

CONSISTENCY OF THE MATERIALS TO BE SAMPLED. SAMPLES COLLECTED USING THE SAMPLING

PROTOCOLS LISTED BELOW WILL BE CONSIDERED BY THE AGENCY TO BE REPRESENTATIVE OF THE

MATERIAL. SAMPLING OR SCREENING RESULTS SHOULD BE PROVIDED IN WRITING TO THE

CONTRACTING OFFICER REPRESENTATIVE (COR) PRIOR TO ANY MATERIAL BEING DELIVERED.

CORE OR SCOOP SAMPLING - ASTM STANDARD E1727

ALL EXTRACTION AND ANALYTICAL METHODS MUST FOLLOW THE SW-846 COMPENDIUM

OR

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 18 of 847

XRF SCREENING - UNE-EN ISO 13196

NUMBER OF SAMPLES REQUIRED, BASED ON QUANTITY REQUIRED IN THE SCHEDULE OF ITEMS

TONS # OF SAMPLES/ SCREENINGS

0-100 3

101-500 5

501-1000 10

106 - ACCEPTANCE OF WORK

106.01_NATIONAL_7_18_2017

DELETE SUBSECTION 106.01 AND REPLACE WITH THE FOLLOWING:

106.01 CONFORMITY WITH CONTRACT REQUIREMENTS.

FOLLOW THE REQUIREMENTS OF FAR CLAUSE 52.246-12 INSPECTION OF CONSTRUCTION.

REFERENCES TO STANDARD TEST METHODS OF AASHTO, ASTM, GSA, AND OTHER RECOGNIZED

STANDARD AUTHORITIES REFER TO THE METHODS IN EFFECT ON THE DATE OF SOLICITATION FOR BIDS.

PERFORM ALL WORK TO THE LINES, GRADES, CROSS-SECTIONS, DIMENSIONS, AND PROCESSES OR

MATERIAL REQUIREMENTS SHOWN ON THE PLANS OR SPECIFIED IN THE CONTRACT.

INCORPORATE MANUFACTURED MATERIALS INTO THE WORK ACCORDING TO THE MANUFACTURER’S

RECOMMENDATIONS OR TO THESE SPECIFICATIONS, WHICHEVER IS MORE STRICT.

PLAN DIMENSIONS AND CONTRACT SPECIFICATION VALUES ARE THE VALUES TO BE STRIVED FOR AND COMPLIED WITH AS THE DESIGN VALUES FROM WHICH ANY DEVIATIONS ARE ALLOWED. PERFORM WORK AND PROVIDE MATERIAL THAT IS UNIFORM IN CHARACTER AND REASONABLY CLOSE TO THE PRESCRIBED VALUE OR WITHIN THE SPECIFIED TOLERANCE RANGE. THE PURPOSE OF A TOLERANCE RANGE IS TO ACCOMMODATE OCCASIONAL MINOR VARIATIONS FROM THE MEDIAN ZONE THAT ARE

UNAVOIDABLE FOR PRACTICAL REASONS.

WHEN STANDARD MANUFACTURED ITEMS ARE SPECIFIED (SUCH AS FENCE, WIRE, PLATES, ROLLED SHAPES, PIPE CONDUITS, ETC., THAT ARE IDENTIFIED BY GAUGE, UNIT MASS, SECTION DIMENSIONS, ETC.), THE IDENTIFICATION WILL BE CONSIDERED TO BE NOMINAL MASSES OR DIMENSIONS. UNLESS SPECIFIC CONTRACT TOLERANCES ARE NOTED, ESTABLISHED MANUFACTURING TOLERANCES WILL BE

ACCEPTED.

THE GOVERNMENT MAY INSPECT, SAMPLE, OR TEST ALL WORK AT ANY TIME BEFORE FINAL

ACCEPTANCE OF THE PROJECT. WHEN THE GOVERNMENT TESTS WORK, COPIES OF TEST REPORTS ARE

FURNISHED TO THE CONTRACTOR UPON REQUEST. GOVERNMENT TESTS MAY OR MAY NOT BE

PERFORMED AT THE WORK SITE. IF CONTRACTOR TESTING AND INSPECTION IS VERIFIED BY THE GOVERNMENT, THE CONTRACTOR’S RESULTS MAY BE USED BY THE GOVERNMENT TO EVALUATE WORK

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 19 of 847

FOR ACCEPTANCE. DO NOT RELY ON THE AVAILABILITY OF GOVERNMENT TEST RESULTS FOR PROCESS

CONTROL.

ACCEPTABLE WORK CONFORMING TO THE CONTRACT WILL BE PAID FOR AT THE CONTRACT UNIT BID PRICE. FOUR METHODS OF DETERMINING CONFORMITY AND ACCEPTING WORK ARE DESCRIBED IN SUBSECTIONS 106.02 TO 106.05 INCLUSIVE. THE PRIMARY METHOD OF ACCEPTANCE IS SPECIFIED IN EACH SECTION OF WORK. HOWEVER, WORK MAY BE REJECTED AT ANY TIME IT IS FOUND BY ANY OF

THE METHODS NOT TO COMPLY WITH THE CONTRACT.

REMOVE, REPAIR, OR REPLACE WORK THAT DOES NOT CONFORM TO THE CONTRACT, OR TO

PREVAILING INDUSTRY STANDARDS WHERE NO SPECIFIC CONTRACT REQUIREMENTS ARE NOTED.

REMOVING, REPAIRING, OR REPLACING WORK; PROVIDING TEMPORARY TRAFFIC CONTROL; AND ANY OTHER RELATED WORK TO ACCOMPLISH CONFORMITY WILL BE AT NO COST TO THE GOVERNMENT.

(A) DISPUTING GOVERNMENT TEST RESULTS. IF THE ACCURACY OF GOVERNMENT TEST RESULTS IS DISPUTED, PROMPTLY INFORM THE CO. IF THE DISPUTE IS UNRESOLVED AFTER REASONABLE STEPS

ARE TAKEN TO RESOLVE THE DISPUTE, FURTHER EVALUATION MAY BE OBTAINED BY WRITTEN

REQUEST. INCLUDE A NARRATIVE DESCRIBING THE DISPUTE AND A PROPOSED RESOLUTION

PROTOCOL THAT ADDRESSES THE FOLLOWING:

1. SAMPLING METHOD.

2. NUMBER OF SAMPLES.

3. SAMPLE TRANSPORT.

4. TEST PROCEDURES.

5. TESTING LABORATORIES.

6. REPORTING.

7. ESTIMATED TIME AND COSTS, AND

8. VALIDATION PROCESS.

IF THE EVALUATION REQUIRES ADDITIONAL SAMPLING OR TESTING BE PERFORMED, MUTUALLY AGREE WITH THE GOVERNMENT ON WITNESSING PROCEDURES AND ON SAMPLING AND TESTING BY A THIRD PARTY LABORATORY. USE A THIRD PARTY LABORATORY ACCREDITED BY THE AASHTO ACCREDITATION PROGRAM. PROVIDE PROOF OF THE LABORATORY’S ACCREDITATION FOR THE TEST PROCEDURES TO BE

USED. DO NOT USE THE SAME LABORATORY THAT PRODUCED THE DISPUTED GOVERNMENT TEST

RESULTS OR THAT PRODUCED THE TEST RESULTS USED AS A BASIS FOR THE DISPUTE.

THE CO WILL REVIEW THE PROPOSED RESOLUTION PROTOCOL AND MAY MODIFY IT BEFORE FINAL

APPROVAL AND EXECUTION.

THE GOVERNMENT WILL USE THE APPROVED RESOLUTION PROTOCOL TEST RESULTS TO DETERMINE THE VALIDITY OF THE DISPUTED TESTING. IF THE GOVERNMENT TEST RESULTS ARE VALIDATED, THE CONTRACTOR WILL BE RESPONSIBLE FOR ALL COSTS ASSOCIATED WITH DEVELOPING AND PERFORMING

THE RESOLUTION PROTOCOL. IF THE GOVERNMENT TEST RESULTS ARE NOT VALIDATED, THE

GOVERNMENT WILL BE RESPONSIBLE FOR ALL COSTS ASSOCIATED WITH DEVELOPING AND

PERFORMING THE RESOLUTION PROTOCOL. IF THE VALIDITY OF THE GOVERNMENT TEST RESULTS

CANNOT BE DETERMINED, THE CONTRACTOR AND GOVERNMENT WILL EQUALLY SHARE ALL COSTS

ASSOCIATED WITH DEVELOPING AND CARRYING OUT THE RESOLUTION PROTOCOL.

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 20 of 847

(B) ALTERNATIVES TO REMOVING AND REPLACING NON-CONFORMING WORK. AS AN ALTERNATIVE

TO REMOVAL AND REPLACEMENT, THE CONTRACTOR MAY SUBMIT A WRITTEN REQUEST TO:

1. HAVE THE WORK ACCEPTED AT A REDUCED PRICE, OR

BE GIVEN PERMISSION TO PERFORM CORRECTIVE MEASURES TO BRING THE WORK

INTO CONFORMITY.

THE REQUEST MUST CONTAIN SUPPORTING RATIONALE AND DOCUMENTATION. INCLUDE REFERENCES OR DATA JUSTIFYING THE PROPOSAL BASED ON AN EVALUATION OF TEST RESULTS, EFFECT ON SERVICE LIFE, VALUE OF MATERIAL OR WORK, QUALITY, AESTHETICS, AND OTHER TANGIBLE ENGINEERING BASIS.

THE CO WILL DETERMINE DISPOSITION OF THE NONCONFORMING WORK.

106.02_NATIONAL_10_23_2016

DELETE SUBSECTION 106.02 AND REPLACE WITH THE FOLLOWING:

106.02 VISUAL INSPECTION.

ACCEPTANCE IS BASED ON VISUAL INSPECTION OF THE WORK FOR COMPLIANCE WITH THE SPECIFIC CONTRACT REQUIREMENTS. USE PREVAILING INDUSTRY STANDARDS IN THE ABSENCE OF SPECIFIC

CONTRACT REQUIREMENTS OR TOLERANCES.

107 - LEGAL RELATIONS AND RESPONSIBILITY TO THE

PUBLIC

107.05_NATIONAL_7_18_2017

DELETE SUBSECTION 107.05.

108 - PROSECUTION AND PROGRESS

108.00_NATIONAL_9_16_2016

DELETE SECTION 108 IN ITS ENTIRETY.

109 - MEASUREMENT AND PAYMENT

109.01_NATIONAL_2_22_2019

DELETE THE THIRD PARAGRAPH AND TABLE 109-1 OF SUBSECTION 109.01 AND

REPLACE WITH THE FOLLOWING:

109.01 MEASUREMENT OF WORK.

TAKE MEASUREMENTS AS DESCRIBED IN SUBSECTION 109.02 UNLESS OTHERWISE MODIFIED BY THE MEASUREMENT SUBSECTION OF THE SECTION CONTROLLING THE WORK BEING PERFORMED. TABLE 109-1 INDICATES THE ACCURACY REQUIRED FOR QUANTITIES OF THE VARIOUS PAY UNITS USED IN THE SCHEDULE OF ITEMS. USE THIS GUIDE TO DETERMINE THE DECIMAL PLACEMENT IN THE FINAL

PAYMENT.

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 21 of 847

TABLE 109-1

DECIMAL ACCURACY OF QUANTITIES FOR FINAL PAYMENT

PAY ITEM LEVEL OF

PRECISION

LINEAR FOOT 1

EXCEPTION--TIMBER, STEEL, AND CONCRETE PILES 0.1

STATION 0.1

MILE 0.01

SQUARE FOOT 0.1

SQUARE YARD 0.1

EACH 1

ACRE 0.01

GALLON 1

M-GALS. 0.1

CUBIC YARD 1

EXCEPTION--STRUCTURE EXCAVATION;

SHEATHING

MATERIALS; BEDDING, BED COURSE, AND

BACKFILL

MATERIALS; GABIONS;

0.1

EXCEPTION--CONCRETE; MASONRY 0.01

POUND 1

TON 0.1

EXCEPTION--CALCIUM CHLORIDE;

SODIUM CHLORIDE; HYDRATED LIME;

BITUMINOUS MATERIALS; PAVEMENTS;

BED COURSE MATERIALS

0.01

HOUR 0.1

MFBM 0.01

STATION YARD 1

CUBIC YARD MILE 1

TON MILE 1

ADD THE FOLLOWING SENTENCE TO SUBSECTION 109.02(B):

109.02 MEASUREMENT TERMS AND DEFINITIONS.

(B) CONTRACT QUANTITY.

CONTRACT QUANTITIES WILL BE ADJUSTED ONLY WHEN THERE ARE ERRORS IN THE ORIGINAL

DESIGN OF 15% OR MORE.

109.00_NATIONAL_9_16_2016

DELETE SUBSECTIONS 109.06, 109.07, 109.08, AND 109.09:

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 22 of 847

157 - SOIL EROSION AND SEDIMENT CONTROL

DELETE SUBSECTION 157.03 AND REPLACE WITH THE FOLLOWING:

157.03 SOIL EROSION, SEDIMENT CONTROL, AND DEWATERING PLAN.

REVIEW CONSTRUCTION PLANS AND THEN DEVELOP A SOIL EROSION, SEDIMENT CONTROL AND

DEWATERING PLAN. THE FOLLOWING CONCEPT IS PROVIDED AS A GUIDE AND SHOULD NOT

SUPERSEDE THE CONTRACTOR PREFERRED MEANS AND METHODS OF CONSTRUCTION. THE

CONTRACTOR CAN PRESENT OTHER METHODS IN THE PLAN. THE PLAN MUST BE APPROVED BY THE COR 20-DAYS PRIOR TO LAND DISTURBANCE ACTIVITIES. MAJOR OPERATIONS CONSIDERED IN PLAN

THAT REQUIRE DETAILED EROSION AND SEDIMENT CONTROL SHALL INCLUDE LAKE DRAWDOWN,

EXCAVATION & EMBANKMENT FOR CONDUIT AND SPILLWAY INSTALLATION. THE PLAN SHALL INCLUDE

CONTROL EROSION AND SEDIMENT BMPS TO BE UTILIZED DURING ALL OPERATIONS OF LAND

DISTURBANCE NOT CONTAINED WITHIN THE INTERIOR BOUNDARY OF THE NORMAL POOL ELEVATION.

THE LAKE MAY BE DRAWDOWN BY MEANS OF SIPHON OR PUMP (1). IF A SIPHON IS UTILIZED IT WILL

REQUIRE 3-STAGES OF OPERATION. THE MAXIMUM SIPHON SIZE IS 12” IN DIAMETER. PEAK

DRAWDOWN FLOWRATES MUST DROP WATER SURFACE NO MORE THAN 2-FT PER DAY TO ENSURE

UPSTREAM DAM SLOPE STABILITY. DRAWDOWN OPERATIONS SHALL MINIMIZE SEDIMENT REMOVAL FROM THE LAKE. DISCHARGE WATER SHALL HAVE A TOTAL SETTLEABLE SOLIDS (TSS) LESS THAN OR EQUAL TO 2.5 ML/L/HR. TESTING OF SETTLEABLE SOLIDS SHALL OCCUR WHEN REQUESTED BY COR TO

VERIFY PERFORMANCE OF EROSION AND SEDIMENT CONTROL MEASURES.

(1) DRAWDOWN LEVEL IS VARIABLE BASED ON CONTRACTOR’S CONSTRUCTION MEANS.

UTILIZATION OF TEMPORARY COFFER DAMS OR SIMILAR MEANS TO REDUCE THE DRAWDOWN

LEVEL IS ACCEPTABLE. THE ESTIMATED BOTTOM OF BASIN IS 533’. MAINTAINING A 6’

MINIMUM WATER DEPTH IS DESIRABLE TO AVOID AQUATIC ORGANISM MORTALITY (2).

(2) FISH SHALL BE REMOVED BY THE FOREST SERVICE AND THE MISSOURI DEPARTMENT OF

CONSERVATION, TO THE EXTENT POSSIBLE, PRIOR TO START OF CONSTRUCTION.

DISCHARGE POINT TO DOWNSTREAM CHANNEL MUST BE AT LEAST 10-FT DOWNSTREAM OF THE TOE

OF THE DAM. THIS DISCHARGE POINT WILL REQUIRE EROSION CONTROL. CONSIDER PROPERLY

DESIGNED SEDIMENT FILTER BAGS (FP-14 713.19 SEDIMENT FILTER BAGS) OR OTHER MEANS IF THE

SIPHON/PUMP IS PICKING UP SEDIMENT.

DELETE SUBSECTION 157.04

201 – CLEARING AND GRUBBING

MODIFY SUBSECTION 201.01 TO ADD THE FOLLOWING:

PRIMARY CLEARING LIMITS INCLUDE THE EXISTING DAM EMBANKMENT. SECONDARY LIMITS SHALL

EXTEND TO AND INCLUDE ANY ACCESS ROADWAYS, LAYDOWN AND STORAGE/STAGING AREAS AS

REQUIRED TO COMPLETE THE WORK.

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 23 of 847

203 - REMOVAL OF STRUCTURES AND OBSTRUCTIONS

DELETE SUBSECTION 203.01 AND REPLACE WITH THE FOLLOWING:

203.01 THIS WORK CONSISTS OF REMOVING THE EXISTING LAKE DRAINAGE PIPE AND APPURTENANCES.

DELETE SUBSECTION 203.04 AND REPLACE WITH THE FOLLOWING:

203.04 REMOVING MATERIAL

EXISTING CULVERT AND APPURTENANCES MARKED AS TO BE REMOVED SHALL BE REMOVED IN THEIR

ENTIRETY AND DISPOSED OF OFF SITE.

204 – EXCAVATION AND EMBANKMENT

DELETE SUBSECTION 204.01 AND REPLACE WITH THE FOLLOWING:

204.01 THIS WORK CONSISTS OF EXCAVATION AND THE CONSTRUCTION OF EARTH EMBANKMENTS, OTHER

EARTHFILLS, AND EARTH BACKFILLS REQUIRED BY THE DRAWINGS AND SPECIFICATIONS.

DELETE SUBSECTION 204.02 AND REPLACE WITH THE FOLLOWING:

204.02 DEFINITIONS AND REFERENCES

EARTHFILL IS COMPOSED OF NATURAL EARTH MATERIALS THAT CAN BE PLACED AND COMPACTED BY

CONSTRUCTION EQUIPMENT OPERATED CONVENTIONALLY.

EARTH BACKFILL IS COMPOSED OF NATURAL EARTH MATERIAL PLACED AND COMPACTED IN CONFINED SPACES OR ADJACENT TO STRUCTURES (INCLUDING PIPES) BY HAND TAMPING, MANUALLY DIRECTED

POWER TAMPERS OR VIBRATING PLATES, OR THEIR EQUIVALENT.

UNCLASSIFIED EXCAVATION IS DEFINED AS THE EXCAVATION OF ALL MATERIALS ENCOUNTERED, INCLUDING ROCK MATERIALS, REGARDLESS OF THEIR NATURE OR THE MANNER IN WHICH THEY ARE

REMOVED.

ASTM D422 - STANDARD TEST METHOD FOR PARTICLE-SIZE ANALYSIS OF SOILS (GRAIN SIZE WITH

HYDROMETER)

ASTM D698 - STANDARD TEST METHODS FOR LABORATORY COMPACTION CHARACTERISTICS OF SOIL

USING STANDARD EFFORT (12,400 FT-LBF/FT3).

ASTM D1556 – STANDARD TEST METHOD FOR DENSITY OF SOIL IN-PLACE BY THE SAND-CONE METHOD.

ASTM D2216 - STANDARD TEST METHOD FOR LABORATORY DETERMINATION OF WATER (MOISTURE)

CONTENT OF SOIL AND ROCK BY MASS.

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 24 of 847

ASTM D2487 – STANDARD PRACTICES FOR CLASSIFICATION OF SOIL FOR ENGINEERING PURPOSES

(UNIFIED SOIL CLASSIFICATION SYSTEM)

ASTM D2922 - STANDARD TEST METHOD FOR DENSITY OF SOIL AND SOIL-AGGREGATE IN-PLACE BY

NUCLEAR METHODS (SHALLOW DEPTH).

ASTM D2937 - STANDARD TEST METHOD FOR DENSITY OF SOIL IN-PLACE BY THE DRIVE-CYLINDER

METHOD TEST.

ASTM D4318 - STANDARD TEST METHODS FOR LIQUID LIMIT, PLASTIC LIMIT, AND PLASTICITY INDEX OF

SOILS.

DELETE SUBSECTION 204.03 AND REPLACE WITH THE FOLLOWING:

204.03 EXCAVATION AND MATERIALS

EXCAVATIONS MUST COMPLY WITH THE OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION

CONSTRUCTION INDUSTRY STANDARDS SUBPART P, EXCAVATIONS, TRENCHING, AND SHORING (29 CFR

PT. 1926). ALL EXCAVATIONS MUST BE COMPLETED AND MAINTAINED IN A SAFE AND STABLE

CONDITION THROUGHOUT THE TOTAL CONSTRUCTION PHASE. STRUCTURE AND TRENCH EXCAVATIONS MUST BE COMPLETED TO THE SPECIFIED ELEVATIONS AND TO THE LENGTH AND WIDTH REQUIRED TO SAFELY INSTALL, ADJUST, AND REMOVE ANY FORMS, BRACING, OR SUPPORTS NECESSARY FOR THE

INSTALLATION OF THE WORK. EXCAVATIONS OUTSIDE THE LINES AND LIMITS SHOWN ON THE

DRAWINGS OR SPECIFIED HEREIN ARE REQUIRED TO MEET SAFETY REQUIREMENTS AND MUST BE THE

RESPONSIBILITY OF THE CONTRACTOR IN CONSTRUCTING AND MAINTAINING A SAFE, STABLE

EXCAVATION.

EXCAVATION SHALL BE UNCLASSIFIED.

ALL FILL/BORROW MATERIAL MUST BE OBTAINED FROM THE TOP, FRONT OR NEAR SIDES OF THE EXISTING EMBANKMENT DAM. THE SELECTION, BLENDING, ROUTING, AND DISPOSITION OF MATERIAL

IN THE VARIOUS FILLS MUST BE SUBJECT TO APPROVAL BY THE CO/COR.

FILL MATERIALS MUST CONTAIN NO FROZEN SOIL, SOD, BRUSH, ROOTS, OR OTHER PERISHABLE MATERIAL. ROCK PARTICLES LARGER THAN TWO-THIRDS OF THE SPECIFIED PRE-COMPACTION LAYER DEPTH FOR EACH TYPE OF FILL MUST BE REMOVED, OR REDUCED IN SIZE, PRIOR TO COMPACTION OF

THE FILL.

DELETE SUBSECTION 204.04 AND REPLACE WITH THE FOLLOWING:

204.04 FOUNDATION PREPARATION

THE TYPES OF MATERIAL USED IN THE VARIOUS FILLS MUST BE AS LISTED AND DESCRIBED IN THE SPECIFICATIONS AND DRAWINGS. FOUNDATIONS FOR EARTHFILL MUST BE STRIPPED TO REMOVE

VEGETATION AND OTHER UNSUITABLE MATERIAL OR MUST BE EXCAVATED AS SPECIFIED.

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 25 of 847

EXCEPT AS OTHERWISE SPECIFIED, EARTH FOUNDATION SURFACES MUST BE GRADED TO REMOVE SURFACE IRREGULARITIES AND MUST BE SCARIFIED PARALLEL TO THE AXIS OF THE FILL OR OTHERWISE ACCEPTABLY SCORED AND LOOSENED TO A MINIMUM DEPTH OF 2 INCHES. THE MOISTURE CONTENT OF THE LOOSENED MATERIAL MUST BE CONTROLLED AS SPECIFIED FOR THE EARTHFILL AND THE SURFACE MATERIAL OF THE FOUNDATION MUST BE COMPACTED AND BONDED WITH THE FIRST LAYER

OF EARTHFILL AS SPECIFIED FOR SUBSEQUENT LAYERS OF EARTHFILL.

EARTH ABUTMENT SURFACES MUST BE FREE OF LOOSE, UNCOMPACTED EARTH IN EXCESS OF 2 INCHES IN DEPTH NORMAL TO THE SLOPE AND MUST BE AT SUCH A MOISTURE CONTENT THAT THE EARTHFILL

CAN BE COMPACTED AGAINST THEM TO PRODUCE A GOOD BOND BETWEEN THE FILL AND THE

ABUTMENTS.

ROCK FOUNDATION AND ABUTMENT SURFACES MUST BE CLEARED OF ALL LOOSE MATERIAL BY HAND OR OTHER EFFECTIVE MEANS AND MUST BE FREE OF STANDING WATER WHEN FILL IS PLACED UPON THEM. OCCASIONAL ROCK OUTCROPS IN EARTH FOUNDATIONS FOR EARTHFILL, EXCEPT IN DAMS AND OTHER STRUCTURES DESIGNED TO RESTRAIN THE MOVEMENT OF WATER, MUST NOT REQUIRE SPECIAL TREATMENT IF THEY DO NOT INTERFERE WITH COMPACTION OF THE FOUNDATION AND INITIAL LAYERS

OF THE FILL OR THE BOND BETWEEN THE FOUNDATION AND THE FILL.

FOUNDATION AND ABUTMENT SURFACES MUST BE NO STEEPER THAN ONE HORIZONTAL TO ONE

VERTICAL UNLESS OTHERWISE SPECIFIED. TEST PITS OR OTHER CAVITIES MUST BE FILLED WITH COMPACTED EARTHFILL CONFORMING TO THE SPECIFICATIONS FOR THE EARTHFILL TO BE PLACED

UPON THE FOUNDATION.

DELETE SUBSECTION 204.05 AND REPLACE WITH THE FOLLOWING:

204.05 FOUNDATION PREPARATION

THE TYPES OF MATERIAL USED IN THE VARIOUS FILLS MUST BE AS LISTED AND DESCRIBED IN THE SPECIFICATIONS AND DRAWINGS. FOUNDATIONS FOR EARTHFILL MUST BE STRIPPED TO REMOVE

VEGETATION AND OTHER UNSUITABLE MATERIAL OR MUST BE EXCAVATED AS SPECIFIED.

DELETE SUBSECTION 204.06 AND REPLACE WITH THE FOLLOWING:

204.06 PLACEMENT

EARTHFILL MUST NOT BE PLACED UNTIL THE REQUIRED EXCAVATION AND FOUNDATION PREPARATION HAVE BEEN COMPLETED AND THE FOUNDATION HAS BEEN INSPECTED AND APPROVED BY THE CO/COR.

EARTHFILL MUST NOT BE PLACED UPON A FROZEN SURFACE NOR HAVE SNOW, ICE, OR FROZEN

MATERIAL INCORPORATED IN THE EARTHFILL MATRIX.

EARTHFILL MUST BE PLACED IN APPROXIMATELY HORIZONTAL LAYERS. THE THICKNESS OF EACH LAYER BEFORE COMPACTION MAY BE DETERMINED BY SOILS TESTING AND ONSITE TRIALS TO ACHIEVE 95%

MAXIMUM DRY DENSITY BUT MUST NOT EXCEED THE THICKNESS SPECIFIED IN FIGURE 23-2.

UNLESS OTHERWISE SPECIFIED ON THE PLANS OR APPROVED BY THE CO/COR BASED ON ONSITE TESTING AND TECHNICIAN CONFIRMATION, COMPACTION REQUIREMENTS FOR EACH LAYER OF FILL

MATERIAL ARE AS SHOWN IN TABLE 1.

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 26 of 847

HAND-COMPACTED EARTH BACKFILL MUST BE PLACED IN LAYERS WHOSE THICKNESS BEFORE

COMPACTION DOES NOT EXCEED THE MAXIMUM THICKNESS SPECIFIED FOR LAYERS OF EARTH BACKFILL

COMPACTED BY MANUALLY DIRECTED POWER TAMPERS.

PLACE EARTH BACKFILL IN A MANNER THAT PREVENTS DAMAGE TO THE STRUCTURES AND ALLOWS THE STRUCTURES TO ASSUME THE LOADS FROM THE EARTH BACKFILL GRADUALLY AND UNIFORMLY. THE HEIGHT OF THE EARTH BACKFILL ADJACENT TO A STRUCTURE MUST BE INCREASED AT APPROXIMATELY

THE SAME RATE ON ALL SIDES OF THE STRUCTURE.

MEET THE FOLLOWING ADDITIONAL REQUIREMENTS FOR EARTHFILL AND EARTH BACKFILL IN DAMS, LEVEES, AND OTHER STRUCTURES DESIGNED TO RESTRAIN THE MOVEMENT OF WATER.

A) THE DISTRIBUTION OF MATERIALS THROUGHOUT EACH ZONE MUST BE ESSENTIALLY UNIFORM

AND THE EARTHFILL FREE FROM LENSES, POCKETS, STREAKS, OR LAYERS OF MATERIAL

DIFFERING SUBSTANTIALLY IN TEXTURE, MOISTURE CONTENT, OR GRADATION FROM THE

SURROUNDING MATERIAL. ZONE EARTHFILLS MUST BE CONSTRUCTED CONCURRENTLY UNLESS

OTHERWISE SPECIFIED.

B) SCARIFIED THE SURFACE OF EACH LAYER PARALLEL TO THE AXIS OF THE FILL TO AT MINIMUM A

DEPTH OF 2 INCHES BEFORE THE NEXT LAYER IS PLACED.

C) THE TOP SURFACE OF EMBANKMENTS MUST BE MAINTAINED APPROXIMATELY LEVEL DURING

CONSTRUCTION WITH TWO EXCEPTIONS: A CROWN OR CROSS-SLOPE OF ABOUT 2 PERCENT

MUST BE MAINTAINED TO ENSURE EFFECTIVE DRAINAGE, OR AS OTHERWISE SPECIFIED FOR

DRAINFILL OR SECTIONAL ZONES.

D) CONSTRUCT DAM EMBANKMENTS IN CONTINUOUS LAYERS FROM ABUTMENT TO ABUTMENT

EXCEPT WHERE OPENINGS TO FACILITATE CONSTRUCTION OR TO ALLOW THE PASSAGE OF

STREAMFLOW DURING CONSTRUCTION ARE SPECIFICALLY AUTHORIZED IN THE CONTRACT.

E) EMBANKMENTS BUILT AT DIFFERENT LEVELS AS DESCRIBED UNDER PARAGRAPHS C OR D ABOVE

MUST BE CONSTRUCTED SO THAT THE SLOPE OF THE BONDING SURFACES BETWEEN

EMBANKMENTS IN PLACE AND EMBANKMENTS TO BE PLACED IS NOT STEEPER THAN 3 FEET

HORIZONTAL TO 1 FOOT VERTICAL. THE BONDING SURFACE OF THE EMBANKMENT IN PLACE

MUST BE STRIPPED OF ALL MATERIAL NOT MEETING THE REQUIREMENTS OF THIS

SPECIFICATION AND MUST BE SCARIFIED, MOISTENED, AND RECOMPACTED WHEN THE NEW

EARTHFILL IS PLACED AGAINST IT. THIS ENSURES A GOOD BOND WITH THE NEW EARTHFILL AND OBTAINS THE SPECIFIED MOISTURE CONTENT AND DENSITY AT THE CONTACT OF THE IN-PLACE

AND NEW EARTHFILLS.

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 27 of 847

Figure 23-2: Compaction class

Grading Characteristics of Soil Fill Material

Appropriate Compaction Classes

Maximum Layer Thickness (Before Compaction)

% > no. 4 % fines

(passing #200) tamping roller (in) pneum.

roller (in) vibrating roller (in)

40,000 lb track trctr (in)

0 -35 Over 5 A 9 9 --- ---

Under 5 A 9 12 24 --- B, C --- 18 30 12

35-65

25-50 A 9 12 24 --- B, C 9 18 24 ---

5-25 A --- 12 24 --- B, C --- 18 24 ---

Under 5 B, C --- 24 24 18

Over 65 Over 5 B, C --- 18 24 --- Under 5 B, C --- 24 24 18

NOTE: TABULATED VALUES ARE UPPER LIMITS. ACTUAL MAXIMUM LAYER THICKNESS FOR

UNIFORM COMPACTION OF A GIVEN SOIL MATERIAL MAY BE SUBSTANTIALLY LOWER.

MAXIMUM SIZE OF ROCK OR ROCK FRAGMENTS SHOULD NOT EXCEED TWO-THIRDS OF THE

LAYER THICKNESS PRIOR TO COMPACTION. SOIL PLASTICITY SHOULD BE A CONSIDERATION.

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 28 of 847

DELETE SUBSECTION 204.07 AND REPLACE WITH THE FOLLOWING:

204.07 CONTROL OF MOISTURE CONTENT

DURING PLACEMENT AND COMPACTION OF EARTHFILL AND EARTH BACKFILL, THE MOISTURE CONTENT

OF THE MATERIAL BEING PLACED MUST BE MAINTAINED WITHIN THE SPECIFIED RANGE.

THE MOISTURE CONTENT OF THE FILL MATRIX AT THE TIME OF COMPACTION MUST BE NEITHER LESS

THAN 2 PERCENT BELOW OPTIMUM MOISTURE CONTENT NOR MORE THAN 2 PERCENT ABOVE

OPTIMUM MOISTURE CONTENT.

THE MOISTURE CONTENT OF THE FILL MATERIAL MUST BE MAINTAINED WITHIN THE LIMITS REQUIRED TO: (1) PREVENT BULKING OR DILATANCY OF THE MATERIAL UNDER THE ACTION OF THE HAULING OR COMPACTING EQUIPMENT, (2) PREVENT THE ADHERENCE OF THE EARTHFILL MATERIAL TO THE TREADS AND TRACKS OF THE EQUIPMENT, AND (3) ENSURE THE CRUSHING AND BLENDING OF THE SOIL CLODS

AND AGGREGATIONS INTO A REASONABLY HOMOGENEOUS MASS.

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 29 of 847

THE APPLICATION OF WATER TO THE EARTHFILL MATERIAL MUST BE ACCOMPLISHED AT THE BORROW AREAS INSOFAR AS PRACTICABLE. WATER MAY BE APPLIED BY SPRINKLING THE MATERIAL AFTER PLACEMENT ON THE EARTHFILL, IF NECESSARY. OBTAIN A UNIFORM MOISTURE DISTRIBUTION BY

DISKING.

MATERIAL THAT IS TOO WET WHEN DEPOSITED ON THE EARTHFILL MUST EITHER BE REMOVED OR

DRIED TO THE SPECIFIED MOISTURE CONTENT PRIOR TO COMPACTION.

IF THE TOP SURFACE OF THE PRECEDING LAYER OF COMPACTED EARTHFILL OR A FOUNDATION OR ABUTMENT SURFACE IN THE CONTACT ZONE WITH THE EARTHFILL BECOMES TOO DRY TO PERMIT SUITABLE BOND, IT MUST EITHER BE REMOVED OR SCARIFIED AND MOISTENED BY SPRINKLING TO AN

ACCEPTABLE MOISTURE CONTENT BEFORE PLACEMENT OF THE NEXT LAYER OF EARTHFILL.

DELETE SUBSECTION 204.08 AND REPLACE WITH THE FOLLOWING:

204.08 COMPACTION

EARTHFILL. EARTHFILL MUST BE COMPACTED ACCORDING TO THE FOLLOWING REQUIREMENTS FOR

THE CLASS OF COMPACTION SPECIFIED:

CLASS A COMPACTION. COMPACT EACH LAYER OF EARTHFILL AS NECESSARY TO PROVIDE THE

DENSITY OF THE EARTHFILL MATRIX NOT LESS THAN 95% MAXIMUM DRY DENSITY THE

EARTHFILL MATRIX IS DEFINED AS THE PORTION OF THE EARTHFILL MATERIAL FINER THAN THE

MAXIMUM PARTICLE SIZE ALLOWED IN THE REFERENCE COMPACTION TEST METHOD SPECIFIED

(ASTM D698 OR ASTM D1557).

CLASS B COMPACTION. COMPACT EACH LAYER OF EARTHFILL TO A MASS DENSITY NOT LESS

THAN 95% MAXIMUM DRY DENSITY.

CLASS C COMPACTION. COMPACT EACH LAYER OF EARTHFILL BY THE SPECIFIED NUMBER OF

PASSES OF THE TYPE AND WEIGHT OF ROLLER OR OTHER EQUIPMENT SPECIFIED OR BY AN

EQUIVALENT APPROVED METHOD. EACH PASS MUST CONSIST OF AT LEAST ONE PASSAGE OF

THE ROLLER WHEEL OR DRUM OVER THE ENTIRE SURFACE OF THE LAYER.

EARTH BACKFILL. COMPACT EARTH BACKFILL ADJACENT TO STRUCTURES TO A DENSITY EQUIVALENT TO THAT OF THE SURROUNDING IN-PLACE EARTH MATERIAL OR ADJACENT REQUIRED EARTHFILL OR EARTH

BACKFILL. COMPACTION MUST BE ACCOMPLISHED BY HAND TAMPING OR MANUALLY DIRECTED

POWER TAMPERS, PLATE VIBRATORS, WALK-BEHIND, MINIATURE, OR SELF-PROPELLED ROLLERS.

UNLESS OTHERWISE SPECIFIED, HEAVY EQUIPMENT, INCLUDING BACKHOE-MOUNTED POWER TAMPERS OR VIBRATING COMPACTORS, AND MANUALLY DIRECTED VIBRATING ROLLERS MUST NOT BE OPERATED WITHIN 3 FEET OF ANY STRUCTURE. TOWED OR SELF-PROPELLED VIBRATING ROLLERS MUST NOT BE

OPERATED WITHIN 5 FEET OF ANY STRUCTURE. COMPACTION BY MEANS OF DROP WEIGHTS

OPERATING FROM A CRANE OR HOIST IS NOT PERMITTED.

HEAVY EQUIPMENT. THE PASSAGE OF HEAVY EQUIPMENT WILL NOT BE ALLOWED:

A. OVER CAST-IN-PLACE CONDUITS WITHIN 14 DAYS AFTER PLACEMENT OF THE CONCRETE

B. OVER CRADLED OR BEDDED PRECAST CONDUITS WITHIN 7 DAYS AFTER PLACEMENT OF THE

CONCRETE CRADLE OR BEDDING

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 30 of 847

C. OVER ANY TYPE OF CONDUIT UNTIL THE BACKFILL HAS BEEN PLACED ABOVE THE TOP

SURFACE OF THE STRUCTURE TO A HEIGHT EQUAL TO ONE-HALF THE CLEAR SPAN WIDTH

OF THE STRUCTURE OR PIPE OR 3 FEET, WHICHEVER IS GREATER.

COMPACTING ADJACENT TO STRUCTURES. COMPACTING OF EARTH BACKFILL ADJACENT TO

STRUCTURES MUST NOT BE STARTED UNTIL THE CONCRETE HAS ATTAINED THE STRENGTH SPECIFIED IN SECTION J FOR THIS PURPOSE. THE STRENGTH IS DETERMINED BY COMPRESSION TESTING OF TEST CYLINDERS CAST BY THE CONTRACTOR'S QUALITY CONTROL PERSONNEL FOR THIS PURPOSE AND CURED AT THE WORKSITE IN THE MANNER SPECIFIED IN ASTM C31 FOR DETERMINING WHEN A STRUCTURE

MAY BE PUT INTO SERVICE.

PLACEMENT INTERVAL AGAINST CONCRETE. WHEN THE REQUIRED STRENGTH OF THE CONCRETE IS NOT SPECIFIED AS DESCRIBED ABOVE, COMPACTION OF EARTH BACKFILL ADJACENT TO STRUCTURES

MUST NOT BE STARTED UNTIL THE FOLLOWING TIME INTERVALS SHOWN IN FIGURE 23-1 HAVE

ELAPSED AFTER PLACEMENT OF THE CONCRETE.

Figure 23-1 Time interval before placing backfill Structure Time interval

(days) Vertical or near-vertical walls with earth loading on one side only 14

Walls backfilled on both sides simultaneously 7 Conduits and spillway risers, cast-in-place (with inside forms in place)

Conduits and spillway risers, cast-in-place (inside forms removed) 14 Conduits, pre-cast, cradled 2 Conduits, pre-cast, bedded 1 Cantilever outlet bents (backfilled both sides simultaneously) 3

DELETE SUBSECTION 204.09 AND REPLACE WITH THE FOLLOWING:

204.09 REWORKING OR REMOVAL AND REPLACEMENT OF DEFECTIVE EARTHFILL

EARTHFILL PLACED AT DENSITIES LOWER THAN THE SPECIFIED MINIMUM DENSITY OR AT MOISTURE CONTENTS OUTSIDE THE SPECIFIED ACCEPTABLE RANGE OF MOISTURE CONTENT, OR OTHERWISE NOT CONFORMING TO THE REQUIREMENTS OF THE SPECIFICATIONS MUST BE REWORKED TO MEET THE

REQUIREMENTS OR REMOVED AND REPLACED BY ACCEPTABLE EARTHFILL. THE REPLACEMENT

EARTHFILL AND THE FOUNDATION, ABUTMENT, AND EARTHFILL SURFACES UPON WHICH IT IS PLACED MUST CONFORM TO ALL REQUIREMENTS OF THIS SPECIFICATION FOR FOUNDATION PREPARATION, APPROVAL, PLACEMENT, MOISTURE CONTROL, AND COMPACTION.

DELETE SUBSECTION 204.10 AND REPLACE WITH THE FOLLOWING:

204.10 TESTING

DURING THE COURSE OF THE WORK, THE CONTRACTOR MUST PERFORM QUALITY CONTROL TESTS, AS APPLICABLE, TO IDENTIFY EARTHFILL AND EARTH BACKFILL MATERIALS; DETERMINE THE REFERENCE

MAXIMUM DENSITY AND OPTIMUM MOISTURE CONTENT IF BELIEVED TO DIFFER FROM THOSE

PROVIDED WITHIN THE SOILS REPORT, SUBSECTION 206; AND DOCUMENT THAT THE MOISTURE

12363N25Q4227 Beaver Lake Dam Rehabilitation Page 31 of 847

CONTENT OF MATERIAL AT THE TIME OF COMPACTION AND THE DENSITY OF EARTHFILL AND EARTH

BACKFILL IN PLACE CONFORM TO THE REQUIREMENTS OF THIS SPECIFICATION.

DETERMINING REFERENCE MAXIMUM DENSITY AND OPTIMUM MOISTURE CONTENT. UNLESS TESTED OTHERWISE, THE REFERENCE MAXIMUM DENSITY AND OPTIMUM MOISTURE CONTENT ARE PROVIDED

WITHIN THE SOILS REPORT, SUBSECTION 206

DOCUMENTING SPECIFICATION CONFORMANCE. IN-PLACE DENSITIES OF EARTHFILL AND EARTH

BACKFILL REQUIRING CLASS A COMPACTION MUST BE MEASURED IN ACCORDANCE WITH SUBSECTION

204.15 AND ASTM D1556, D2167, D2937, D6938, OR D8167. MOISTURE CONTENTS OF EARTHFILL AND EARTH BACKFILL AT THE TIME OF COMPACTION MUST BE MEASURED IN ACCORDANCE WITH ASTM

D2216, D4643, OR D6938. VALUES OF MOISTURE CONTENT DETERMINED BY ASTM D2216 ARE

CONSIDERED THE TRUE VALUE OF THE SOIL MOISTURE. VALUES OF MOISTURE CONTENT DETERMINED BY ASTM D4643 OR D6938 MUST BE VERIFIED BY COMPARISON TO VALUES OBTAINED BY ASTM D2216.

VALUES OF IN-PLACE DENSITY AND MOISTURE CONTENT DETERMINED BY THESE TESTS MUST BE COMPARED TO THE MINIMUM DENSITY AND MOISTURE CONTENT RANGE SPECIFIED WITHIN THE SOILS

REPORT, SUBSECTION 206.

DOCUMENTATION OF TESTING SHALL BE PROVIDED TO THE CO/COR UPON REQUEST AND NO LESS

THAN WEEKLY.

CORRECTION FOR OVERSIZE PARTICLES. IF THE MATERIALS TO BE USED FOR EARTHFILL OR EARTH BACKFILL CONTAIN MORE THAN 5 PERCENT BY DRY WEIGHT OF OVERSIZE ROCK PARTICLES (PARTICLES LARGER THAN THOSE ALLOWED IN THE…