Addendum One .pdf
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- Attached to
- RFB-229-25 24035AMLBAML, Letcher County
- Solicitation number
- RFB-785-2500000633-2
- Issued by
- Knox County, Kentucky
About this file
The document is an Addendum (Number One) issued by the Commonwealth of Kentucky's Department for Facilities and Support Services, Division of Engineering and Contract Administration for Invitation to Bid No. RFB-229-25, which covers a 24035 AMLBAML AML Reclamation Project located in Letcher County, Kentucky. The addendum, dated May 7, 2025, requires bidders to conform to two key changes: first, to refer to an addendum distributed by Lynn Imaging for all additions, deletions, and/or changes to specifications and drawings, and second, to use a Revised Bid Schedule dated 5/7/2025 in lieu of previously issued documents.
The Revised Bid Schedule includes 30 line items with various quantities and unit prices, covering activities such as mobilization, utility relocation/replacement, structure removal, site preparation, concrete work, drilling, wall construction, portal closures, revegetation, and other project-related tasks. The project involves reclaiming a slide area behind a residence, constructing a 110 linear foot permanent debris barrier wall, an 80 linear foot non-reinforced block wall, and installing mine portal closures. The total project area is 2.87 acres, with a disturbed area of 0.52 acres, and the contract requires completion within 100 calendar days from the contract award date.
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Text version
COMMONWEALTH OF KENTUCKY
DEPARTMENT FOR FACILITIES AND SUPPORT SERVICES
DIVISION OF ENGINEERING AND CONTRACT ADMINISTRATION
INVITATION TO BID NO: RFB-229-25
FOR: 24035 AMLBAML
AML Project Letcher County, Kentucky
DATE: May 7, 2025
RFB-785-2500000633
ADDENDUM NO. One (1)
BIDDER SHALL CONFORM TO THE FOLLOWING CHANGES AS SAME SHALL BECOME BINDING
UPON THE CONTRACT TO BE ISSUED IN RESPONSE TO THIS INVITATION TO BID.
Item 1: Refer to addendum to be distributed by Lynn Imaging for all additions, deletions, and/or changes to specifications and/or drawings.
Item 2: Revised Bid Schedule 5/7/2025 must be used in lieu of previously issued.
END OF ADDENDUM
Invitation to Bid No. RFB-229-25 For: 24035 AMLBAML
AML Project Letcher County, Kentucky
Susan Ward, Statewide Procurement Analyst II Division of Engineering and Contract Administration
NO. ITEM M.O.P. UNIT QUANTITY * Low APL UNIT PRICE TOTAL
1 MOBILIZATION L.S. L.S. 1.0 X NA ≤ NA = 12,500.00$
2 UTILITY RELOCATION/REPLACEMENT A.C.U. A.C.U. 1.0 X NA ≤ 5,000.00$ = 5,000.00$
3 STRUCTURE REMOVAL/REPLACEMENT A.C.U. A.C.U. 1.0 X NA ≤ 10,000.00$ = 10,000.00$
4 SITE PREPARATION U.P. ACRE 0.5 X $750.00 ≤ $ = $
5 SITE PREPARATION- WASTE AREAS U.P. ACRE 0.5 X $750.00 ≤ $ = $
6 60 KSI REINFORCING STEEL U.P. LBS 110.0 X $0.75 ≤ $ = $
7 CONCRETE- FORMED & FINISHED U.P. CY 10.0 X $250.00 ≤ $ = $
8 CONCRETE- NON-FORMED & NON-FINISHED U.P. CY 25.0 X $100.00 ≤ $ = $
9 FILTER FABRIC U.P. SY 55.0 X $0.50 ≤ $ = $
10 GEO-GRID U.P. SY 120.0 X $2.00 ≤ $ = $
11 NO. 57 STONE BACKFILL U.P. TON 100.0 X $15.00 ≤ $ = $
12 CLASS II / III U.P. TON 500.0 X $20.00 ≤ $ = $
13 SILT BARRIER - BALES & FENCE U.P. LF 800.0 X $1.00 ≤ $ = $
14 HOE RAM U.P. HOUR 20.0 X $60.00 ≤ $ = $
15 EARTHWORK (PLAN QUANTITY) P.Q. CY 500.0 X $3.00 ≤ $ = $
16 RETAINING WALL SUBDRAIN U.P. LF 80.0 X $15.00 ≤ $ = $
17 8" DIA. HDPE PIPE- STANDARD U.P. LF 200.0 X $5.00 ≤ $ = $
18 SOIL DRILLING (12inch) U.P. LF 495.0 X $10.00 ≤ $ = $
19 ROCK DRILLING (12inch) U.P. LF 170.0 X $15.00 ≤ $ = $
20 ROCK DRILLING (10inch) U.P. LF 450.0 X $15.00 ≤ $ = $
21 RAILROAD RAILS- 130 LBS./YD. U.P. LF 980.0 X $10.00 ≤ $ = $
22 SCHEDULE 80 PIPE U.P. LF 580.0 X $10.00 ≤ $ = $
23 STEEL PANELS U.P. SF 300.0 X $10.00 ≤ $ = $
24 GUARDRAIL LAGGING U.P. LF 850.0 X $5.00 ≤ $ = $
NON-REINFORCED CONCRETE BLOCK WALL-
TYPE I
U.P. SF 480.0 X $15.00 ≤ $ = $
26 PORTAL CLOSURE U.P. EACH 3.0 X $1,000.00 ≤ $ = $
27 SEED U.P. LBS 100.0 X $4.00 ≤ $ = $
28 REVEGETATION U.P. ACRE 1.0 X $500.00 ≤ $ = $
29 ROADWAY STONE U.P. TON 75.0 X $20.00 ≤ $ = $
30 CHAIN-LINK FENCE U.P. LF 80.0 X $15.00 ≤ $ = $
BID TOTAL = $
24035AMLBAML RECLAMATION PROJECT
LETCHER COUNTY, KENTUCKY
BID SCHEDULE
REVISED BID SCHEDULE 5/7/2025 RFB-229-25
NOTE: THE AUTHENTICATION OF BID AND STATEMENT OF NON-COLLUSION AND NON-CONFLICT OF INTEREST PAGE MUST BE PROPERLY
EXECUTED FOR THE TOTAL BID AMOUNT TO BE VALID.
* Any Unit Price outside the Allowable Price Limit (APL) range may be considered an unbalanced bid and may have to be justified in writing if such bid is deemed the low responsive bid.
Revised 12/11/2024
COR & BID & BMP 1
24035AMLBAML (AML) RECLAMATION PROJECT
LETCHER COUNTY, KENTUCKY
Written Location Directions: Letcher County in the community of Haymond KY, at Latitude
82.69525°N Longitude -37.18193°W. To reach the site from Whitesburg take US 119 from the junction of KY 15 and KY 15X in a northern direction 5.63 miles to the junction of KY 805.
Turn left and travel 4.50 miles to Kings Hollow Road, turn right onto Kings Hollow Road and travel 0.30 miles to residence, slide area to the left of residence behind garage.
Basic Project Description: Removal of a slide that has occurred behind Mr. Johnson’s garage. The slide is pushing up against the garage with about 0.11 acres being disturbed. This will allow enough room to construct a 110 LF permanent debris barrier wall behind the garage. Along with an 80 LF high non-reinforced block wall type 1 that will be located to the side of the barrier wall.
Also being installed will be one mine portal wildlife closure that is located next to the slide area and two standard non-wildlife mine portal closures that are in the slide area.
A. STANDARD DOCUMENTS
The AML Standard Details, Technical Specifications, and Bid Item Descriptions are posted on the
Division’s website at https://eec.ky.gov/aml
Once on the web page, please click “Contractor Information” tab located on the right side. AML standard technical specification and detail are located under this tab. Contractors are strongly encouraged to review the complete AML website for additional information.
B. ALLOWABLE PRICE LIMIT
The lowest Allowable Price Limit (APL) is listed on the Bid Schedule as part of the bid documents. Unit
Price, Plan Quantity, and Lump Sum are all methods of payment. Significantly low or high values entered by the CONTRACTOR on the Bid Schedule may be considered an unbalanced bid and may have to be justified in writing if such bid is deemed the low responsive bid.
An example would be if a CONTRACTOR assumes there may not be a need for the entire design quantity for Roadway Stone and entered a $10 value for Roadway Stone when the cost at the quarry is significantly higher. Another example would be if the CONTRACTOR enters a value of $30 per linear foot for “SILT BARRIER - BALES & FENCE” to front load payments for work items used near the beginning of the project. The CONTRACTOR is also cautioned that other considerations for rejection may be enforced such as the low bid being higher than the budgeted dollar amount for this project.
C. CONTRACT LENGTH
All work shall be completed within ONE HUNDRED (100) calendar days from the effective date of the
Award of Contract. Within the bounds of prudent project performance, it shall be the responsibility of the
CONTRACTOR to plan and implement construction sequences which follow the intent of these
CONTRACT DOCUMENTS, particularly as, reflected in the Drawings and Special Conditions and to protect any portion of the contract which may be completed before others.
D. CONTRACTOR’S INFORMATION SHEET
https://eec.ky.gov/aml
COR & BID & BMP 2
The AML CONTRACTOR/SUBCONTRACTOR INFORMATION FORM sheet must be filled out and submitted with the bid. Failure to submit the AML Contractor/Subcontractor Information Form sheet with the bid will be the basis for declaring the bid “Non-Responsive.”
E. SPECIAL CONDITIONS & PROJECT NOTES
- When applicable, AML is responsible for payment to the Imperiled Bat Conservation Fund
(ICBF). The CONTRACTOR will be responsible for adhering to the boundary for which payment was made and confirming with AML the acreage of trees removed.
- On occasion, a property owner may require a CONTRACTOR to add them on their General
Liability and/or Automobile Insurance as an “Additional Insured.” AML will inform the
CONTRACTOR when this requirement is being made by the property owner. In these cases, the
CONTRACTOR must submit to AML copies of their certificate of insurance documenting the
“Additional Insured” before they will be allowed to mobilize equipment and forces on to said properties. Any fees, rate increases, or other costs incurred by the CONTRACTOR for this requirement, if any, will be considered incidental to mobilization and as such no compensation will be made by AML. The “Additional Insured” must remain on the CONTRACTOR’s policy(s) for the full length of the contract.
- Add any special conditions, notes, exceptions to standard documents or write “None”.
- Add Bid Item descriptions that are contrary to standards notes.
F. DAVIS BACON SCALE WAGES
The CONTRACTOR and all SUBCONTRACTORS are required to pay scale wages as defined in the contract documents. If all employment categories that may be used have not been listed and specified in the contract document, then the contractor must make his best determination of what the missing wage rate will be. Subsequently after the bid is awarded, the contractor must request the specific rate from the
Department of Labor. AML will not issue change orders for additional compensation if the wage rate determined by DOL is higher than the rate the contractor used to develop his bid. If wage rates are not included for a specific category, AML suggests that the contractor assume the highest operator or laborer wages that are listed when developing his bid.
G. PERMITS & FEES – AML will be responsible for obtaining any permits that are checked below.
(Check all that apply)
☒KYTC Encroachment Permit
☒KY DOW Water Permits
☒USACE Permit
The CONTRACTOR is responsible for all other permits and/or fees necessary to begin the project. The
CONTRACTOR is advised that on occasion, other permits and/or fees may be required by federal, state, and local government(s). Other types of permits and/or fees are not the responsibility of AML and as such, these will be the complete and total responsibility of the CONTRACTOR to obtain. These must be
COR & BID & BMP 3
obtained before AML will allow mobilization of equipment and forces on to said properties. All costs associated with other permits or fees will be the responsibility of the CONTRACTOR. Please refer to
“General Provisions” in the AML Technical Specifications.
BID ITEM DESCRIPTION
24035AMLBAML AML RECLAMATION PROJECT
LETCHER COUNTY, KENTUCKY
NO ITEM DESCRIPTION
1 MOBILIZATION This item consists of the mobilization and demobilization of the
CONTRACTOR’S forces and equipment in accordance with the
“Mobilization/Demobilization” AML Standard Technical Specification. The amount of this bid item is as stated on the Bid Schedule.
Measurement: Not Applicable.
Payment: Payment shall be made at increments set in the AML Technical
Specifications totaling the Lump Sum price.
2 UTILITY
RELOCATION /
REPLACEMENT
This consists of furnishing all materials, equipment, and labor necessary to replace utilities damaged by construction or relocate any utilities that are in the construction area in accordance with the “Utility Relocation” AML Standard
Technical Specification. The CONTRACTOR is required to supply the
ENGINEER with all documentation to support cost incurred to qualify for reimbursement.
Special Considerations: None
Major Incidentals: These will be listed in writing by the ENGINEER prior to beginning the work.
Measurement: Not Applicable.
Payment: Payment shall be made for Actual Documented Costs for
“UTILITY RELOCATION/REPLACEMENT” approved by the
ENGINEER. The payment shall be a direct reimbursement for actual documented costs to the CONTRACTOR in accordance with the “General
Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for all labor, equipment, materials, and incidentals.
Revised 5/10/2023
COR & BID & BMP 4
3 STRUCTURE
REMOVAL/
REPLACEMENT
This item represents the ENGINEER'S best estimate of removal/replacement cost of designated qualifying structural features “in kind” to facilitate normal construction activities as depicted on the Drawings and as directed by the
ENGINEER in accordance with the “Structure Removal / Replacement” AML
Standard Technical Specification. The CONTRACTOR is required to supply the ENGINEER with all documentation to support cost incurred to qualify for reimbursement.
Special Considerations: None
Inspector Notes: Inventory of structures, pictures, and dimensions, before construction starts. Any structures that are removed shall be accompanied by pictures.
Major Incidentals: These will be listed in writing by the ENGINEER prior to beginning the work.
Measurement: None
Payment: Payment shall be made for Actual Documented Costs for
“STRUCTURE REMOVAL/REPLACEMENT” approved IN ADVANCE by the ENGINEER. The payment shall be a direct reimbursement for actual documented costs to the CONTRACTOR in accordance with the “General
4 SITE PREPARATION This item of work shall consist of furnishing all materials, equipment, and labor as depicted on the Drawings and as directed by the ENGINEER in accordance with the “Site Preparation” AML Standard Technical Specification.
Special Considerations: None
Major Incidentals: Clearing, grubbing, windrowing, burning, pipe removal and disposal, pipe cleanout, temporary diversion ditch construction, domestic debris removal and disposal, concrete & bituminous asphalt debris removal and disposal, access improvement/construction, in-kind fence repair/replacement, and temporary stream diversion.
Measurement: Actual Quantities shall be measured with a handheld GPS and rounded up to the next whole 0.5 acre actually cleared and grubbed (excludes slurry and refuse areas.
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “SITE PREPARATION” in accordance with the
“General Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for all labor, materials, equipment, and other items necessary to complete the work.
COR & BID & BMP 5
5 SITE
PREPARATION-
WASTE AREAS
This item of work shall consist of furnishing all materials, equipment, and labor as depicted on the Drawings and as directed by the ENGINEER in accordance with the “Site Preparation” AML Standard Technical Specification.
Special Considerations: None
Major Incidentals: Clearing, grubbing, windrowing, burning, pipe removal and disposal, pipe cleanout, temporary diversion ditch construction, domestic debris removal and disposal, access improvement/construction, in-kind fence repair/replacement.
Measurement: Actual Quantities shall be measured with a handheld GPS and rounded up to the next whole 0.5 acre actually cleared and grubbed (excludes slurry and refuse areas).
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “SITE PREPARATION- WASTE AREAS” in accordance with the “General Provisions” AML Standard Technical
Specification. Such payment shall constitute full compensation for all labor, materials, equipment, and other items necessary to complete the work.
6 60-KSI
REINFORCING
STEEL
This item consists of furnishing all materials, equipment, and labor necessary to properly installing 60 KSI reinforcing steel of various diameters and lengths as depicted on the Drawings and as directed by the ENGINEER in accordance with the “Concrete” and “Steel” AML Standard Technical Specifications.
This bid item covers steel used for: reinforcement in concrete ditches (all types), footers, retaining walls, concrete piles & cap reinforcement, anchors, Special Considerations: See AML Technical Specification for overlap Steel
Item 2.2.6.
No splicing shall be permitted for length of steel less than 10 feet in length.
Splicing of lengths between 10 feet and 20 feet is allowed. No lengths less than
4 feet is allowed including the overlap.
For lengths greater than 20 feet splicing is allowed. Minimum length of steel shall be 10 foot including overlap.
Maximum of 10 % payment for overlap steel.
Major Incidentals: Coatings, excess steel, connections, cut-offs, testing, and waste materials
Measurement: Actual Quantities shall be measured as pounds of reinforcing steel placed and accepted by the ENGINEER. Actual Quantities may be obtained by using a CRSI chart that shows lbs/lf for each size bar and multiplying the length of each bar used.
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “60-KSI REINFORCING STEEL” in accordance with the “General Provisions” AML Standard Technical Specification. Such payment as specified shall constitute full compensation for all labor, materials, equipment, and incidentals.
COR & BID & BMP 6
7 CONCRETE-
FORMED &
FINISHED
This item consists of furnishing all materials, equipment, and labor necessary to construct concrete field cast items as depicted on the Drawings and as directed by the ENGINEER in accordance with the “Concrete” AML Standard
Technical Specification. This bid item covers concrete used for: concrete ditches (all types), retaining walls (all types), footers, caps, and any other purpose that requires formwork and/or finishing. All formwork, no matter the size/scale or changes are incidental, including increases in heights of walls.
Special Considerations: None
Inspector Notes: Collect manufacturer certificates for each unit.
Major Incidentals: Formwork (including height/width increases), admixtures, finishing, materials testing.
Measurement: Actual Quantities shall be measured as the next whole cubic yard installed and accepted by the ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price for “CONCRETE- FORMED & FINISHED” in accordance with the “General Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for all labor, materials, equipment, and incidentals.
8 CONCRETE- NON-
FORMED & NON-
FINISHED
construct concrete field cast items as depicted on the Drawings and as directed by the ENGINEER in accordance with the “Concrete” AML Standard
Technical Specification. This bid item covers concrete used for piles, encasements.
Special Considerations: None
Inspector Notes: Collect manufacturer certificates for each unit.
Major Incidentals: Formwork, admixtures, materials testing.
Measurement: Actual Quantities shall be measured as the next whole cubic yard installed and accepted by the ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price for “CONCRETE- NON-FORMED & NON-FINISHED” in accordance with the “General Provisions” AML Standard Technical
Specification. Such payment shall constitute full compensation for all labor, materials, equipment, and incidentals.
COR & BID & BMP 7
9 FILTER FABRIC This item consist of furnishing all materials, equipment, and labor, necessary to install filter fabric utilized in ditch construction as depicted on the Drawings and as directed by the ENGINEER in accordance with “Filter Fabric” AML
Standard Technical Specification. This includes all types of filter fabric used on a jobsite. The standard details list the type and quantity of fabric for each purpose.
Special Considerations: None
Inspector Notes: Collect manufacturer certificates for each unit.
Major Incidentals: Staples
Measurement: Actual Quantities shall be measured as the next whole square yard installed and accepted by the ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “FILTER FABRIC” in accordance with the “General
10 GEOGRID This item consist of furnishing all materials, equipment, and labor, necessary to install geogrid, including all labor, materials, and accessories as depicted on the
Drawings and as directed by the ENGINEER in accordance with “Geo-grid”
AML Standard Technical Specification. All geo-grid is bi-axial, except for tails behind Non-reinforced Block Walls- Type I.
Special Considerations: None
Inspector Notes: Collect manufacturer certificates for each unit.
Major Incidentals: Staples
Measurement: Actual Quantities shall be measured as the next whole square yard installed and accepted by the ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “GEOGRID” in accordance with the “General
11 NO. 57 STONE
BACKFILL
This item shall consists of furnishing all materials, equipment, and labor necessary to place No. 57 stone aggregate as depicted on the Drawings and as directed by the ENGINEER in accordance with “Crushed Aggregate and
Channel Lining” AML Standard Technical Specification.
Special Considerations: None
Measurement: Actual Quantities shall be measured based on weigh tickets supplied to the ENGINEER as ton(s) installed and accepted by the
ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “NO. 57 STONE BACKFILL” in accordance with the
“General Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for all labor, materials, equipment, and incidentals.
COR & BID & BMP 8
12 CLASS II BACKFILL This item consists of furnishing all materials, equipment, and labor necessary to place Class II aggregate as depicted on the Drawings and as directed by the
ENGINEER in accordance with the “Crushed Aggregate and Channel Lining”
AML Standard Technical Specification.
Special Considerations: None
Measurement: Actual Quantities shall be measured based on weigh tickets supplied to the ENGINEER as ton(s) of each type of aggregate installed and accepted by the ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “CLASS II BACKFILL" in accordance with the “General constitute full compensation for all labor, materials, equipment, and incidentals.
SILT CONTROL
13 SILT BARRIER–
BALES & FENCE
This item consists of furnishing all materials, equipment, and labor necessary to maintain silt control as depicted on the Drawings, AML Standard Details, and as directed by the ENGINEER in accordance with the “Silt Control” AML
Standard Technical Specification. Hay/straw bales shall be placed with an overlap equal to 0.4 bales per linear foot of silt control fencing. Silt fence shall be trenched and removed at the end of the project. Failure to remove silt control fence (geotextile fabrics) shall result in forfeiture of demobilization.
Special Considerations: None
Major Incidentals: Maintenance, silt fence trenching and removal
Measurement: Actual Quantities shall be measured as the next whole linear foot installed and accepted by the ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “SILT BARRIER - BALES & FENCE" in accordance with the “General Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for materials, equipment, labor, and
EARTHWORK
COR & BID & BMP 9
14 HOE RAM This item consist of furnishing all materials, equipment, and labor necessary to accomplish the required excavation of rock utilizing a hoe ram as depicted on the Drawings and as directed by the ENGINEER in accordance with the
“Equipment” AML Standard Technical Specification.
Special Considerations: None
Major Incidentals: Equipment, operator, fuel, maintenance items
Measurement: Actual Quantities shall be measured as the next whole equipment hour when required to construct ditches and other features approved by the ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “HOE RAM” in accordance with the “General constitute full compensation for materials, equipment, labor and incidentals.
15 EARTHWORK This item consist of furnishing all materials, equipment, and labor necessary to accomplish the required excavation of material to the lines and grades as depicted on the Drawings and as directed by the ENGINEER in accordance with the “Earthwork” AML Standard Technical Specification.
Special Considerations: None
Major Incidentals: Excavation, transportation, placement, compaction of all excavated materials including rock ditches constructed without hoe ram.
Measurement: No measurements will be made unless the ENGINEER significantly revises the dimensions of the work area(s).
Payment: Payment shall be the product of the Plan Quantity Volume and the
Unit Price bid for “EARTHWORK” in accordance with the “General
Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for all labor, materials, equipment, and other items necessary to complete the work—this includes all transportation and gradework efforts associated with designated waste areas.
DRAINAGE CONTROL
SURFACE DRAINAGE
SUBSURFACE DRAINS
COR & BID & BMP 10
16 RETAINING WALL
SUBDRAIN
This item of work shall consist of furnishing all materials, equipment, and labor necessary to install subsurface drains as depicted on the Drawings, AML
Standard Details, and as directed by the ENGINEER in accordance with the
“Crushed Aggregate and Channel Lining”, “Filter Fabric”, and “Subsurface
Drains” AML Standard Technical Specifications.
Special Considerations: None
Major Incidentals: Pipe, filter fabric, aggregate backfill
Measurement: Actual Quantities shall be measured as the next whole linear foot installed and accepted by the ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “RETAINING WALL SUBDRAIN” in accordance with the “General Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for all labor, equipment, materials, 8” HDPE PIPE-
STANDARD
This item consists of furnishing all materials, equipment, and labor, necessary to install standard, non-steel reinforced HDPE pipe as depicted on the
Drawings, AML Standard Details, and as directed by the ENGINEER in accordance with the “Crushed Aggregate and Channel Lining”, “Grout
Products”, and “Pipe” AML Standard Technical Specifications.
Special Considerations: None
Inspector Notes: Collect manufacturer certificates for each unit.
Major Incidentals: Excavation, bedding, aggregate backfill to 1’ over top of pipe, steel plates for access maintenance.
Measurement: Actual Quantities shall be measured as the next whole linear foot installed and accepted by the ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “HDPE PIPE-STANDARD” in accordance with the
“General Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for all labor, equipment, materials, and
COR & BID & BMP 11
DRILLING & WALL STRUCTURES
18 SOIL DRILLING This item consists of work shall consist of furnishing all materials, equipment, and labor necessary to drill boreholes the required diameter through soil as depicted on the Drawings and as directed by the ENGINEER.
Special Considerations: None
Measurement: Actual Quantities shall be measured as the next whole linear foot drilled and accepted by the ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “SOIL DRILLING” in accordance with the “General
Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for all labor, equipment, materials, and incidentals necessary to complete this item as required.
19 ROCK DRILLING
12inch
This item consists furnishing all materials, equipment, and labor necessary to drill boreholes the required diameter through 10 feet of competent rock as depicted on the Drawings and as directed by the ENGINEER.
Special Considerations: None
Measurement: Actual Quantities shall be measured as the next whole linear foot drilled and accepted by the ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “ROCK DRILLING” in accordance with the “General
Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for all labor, equipment, materials, and incidentals necessary to complete this item as required.
20 ROCK DRILLING
10inch
This item consists furnishing all materials, equipment, and labor necessary to drill boreholes the required diameter through 10 feet of competent rock as depicted on the Drawings and as directed by the ENGINEER.
Special Considerations: None
Measurement: Actual Quantities shall be measured as the next whole linear foot drilled and accepted by the ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “ROCK DRILLING” in accordance with the “General
Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for all labor, equipment, materials, and incidentals necessary to complete this item as required.
COR & BID & BMP 12
21 RAILROAD RAILS-
130 LBS/YD
install the railroad rail steel as depicted on the Drawings and as directed by the
ENGINEER in accordance with the “Barrier- Rail/Steel Panel Wall” AML
Standard Technical Specification.
Special Considerations: None
Measurement: Actual Quantities shall be measured as the next whole linear foot installed and accepted by the ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and
Unit Price bid for “RAILROAD RAILS- 130 LBS/YD” in accordance with the “General Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for all labor, equipment, materials, 22 SCHEDULE 80 PIPE This item consists of furnishing all materials, equipment, and labor necessary to install the steel pipe as depicted on the Drawings and as directed by the
ENGINEER in accordance with the “Barrier- Rail / Pipe Steel Panel Wall”
AML Standard Technical Specification.
Special Considerations: None
Measurement: Actual Quantities shall be measured as the next whole linear foot installed and accepted by the ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and
Unit Price bid for “SCHEDULE 80 PIPE” in accordance with the “General
23 STEEL PANELS This item consists of furnishing all materials, equipment, and labor necessary to install the steel panels as depicted on the Drawings and as directed by the
ENGINEER in accordance with the “Barrier- Rail / Pipe Steel Panel Wall”
AML Standard Technical Specification.
Special Considerations: None
Measurement: Actual Quantities shall be measured as the next whole square foot installed and accepted by the ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and
Unit Price bid for “STEEL PANELS” in accordance with the “General
COR & BID & BMP 13
24 GUARDRAIL
LAGGING
This item consists of furnishing all materials, equipment, and labor necessary to install guardrail (Steel “W” Beam) as depicted on the Drawings and as directed by the ENGINEER in accordance with the “Guardrails” AML Standard
Technical Specification.
Special Considerations: None
Measurement: Actual Quantities shall be measured as the next whole linear foot installed and accepted by the ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “GUARDRAIL LAGGING” in accordance with the
“General Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for all labor, equipment, materials, and incidentals necessary to complete this item as required.
25 NON-REINFORCED
CONCRETE BLOCK
WALL- TYPE I
construct a pre-cast concrete block wall as depicted on the Drawings, AML
Standard Details, and as directed by the ENGINEER in accordance with the
“Non-Reinforced Concrete Block Walls” AML Standard Technical
Specification.
Special Considerations: None
Inspector Notes: Collect manufacturer certificates for each unit.
Major Incidentals: Blocks, pins, adhesive, subgrade preparation
Measurement: Actual Quantities shall be measured as the next whole square foot installed and approved by the ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities installed and the Unit Price for “NON-REINFORCED CONCRETE BLOCK
WALL- TYPE I” in accordance with the “General Provisions” AML Standard
Technical Specification. Such payment shall constitute full compensation for all labor, materials, equipment, and incidentals.
SUBSIDENCE, PORTAL CLOSURES, & HIGHWALLS
COR & BID & BMP 14
26 PORTAL CLOSURE This item consists of furnishing all materials, equipment, and labor necessary to close mine portals as depicted on the Drawings, AML Standard Details, and as directed by the ENGINEER in accordance with the “Portal Closure” AML
Standard Technical Specification.
Special Considerations: None
Major Incidentals: Earthwork, excavation, cement, block, pipe, steel, concrete
Measurement: Actual Quantities shall be measured as “EACH” closure completed and accepted by ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “PORTAL CLOSURE” in accordance with the “General
Provisions” AML Standard Technical Specification. Such payments shall
REVEGETATION
27 SEED
These items shall consist of furnishing all materials, equipment, and labor for the purpose of revegetation of the disturbed areas as depicted on the Drawings and as directed by the ENGINEER in accordance with the “Revegetation”
AML Standard Technical Specification. Seed mixture will be listed on the
Drawings, Project Description, and/or Special Conditions.
Special Considerations: None
Inspector Notes: Collect manufacturer certificates for each unit.
Major Incidentals:
Measurement: Actual Quantities shall be measured to the next whole pound of pure live seed approved by and accepted by the ENGINEER.
Payment: Payment for revegetation shall the product of the Actual Accepted
Quantities and the respective Unit Price bid for "SEED” in accordance with the
“General Provisions” AML Standard Technical Specification. Such payment shall constitute full compensation for all materials, labor, equipment, and
COR & BID & BMP 15
28 REVEGETATION These items shall consist of furnishing all materials, equipment, and labor for the purpose of revegetation of the disturbed areas as depicted on the Drawings and as directed by the ENGINEER in accordance with the “Revegetation”
AML Standard Technical Specification.
Special Considerations: None
Major Incidentals: Seedbed preparation, agriculture limestone, fertilizer, seed, and mulch
Measurement: Not applicable.
Payment: Payment shall be made at the ACRE price bid for
“REVEGETATION” in accordance with the “General Provisions” AML
Standard Technical Specification. Such payment shall constitute full compensation for all labor, materials, equipment, and other items necessary to complete the work—this includes all transportation and gradework efforts associated with designated waste areas.
ACCESS REPAIR & SAFETY
29 ROADWAY STONE This item shall consist furnishing all materials, equipment, and labor necessary to place and compact as necessary the various gradations of stone as depicted on the Drawings and as directed by the ENGINEER in accordance with the
“Crushed Aggregate and Channel Lining” AML Standard Technical
Specification.
Special Considerations: None
Measurement: Actual Quantities shall be measured based on weigh tickets supplied to the ENGINEER as ton(s) of each type of channel lining, and/or aggregate installed and accepted by the ENGINEER.
Payment: Payment shall be the product of the Actual Accepted Quantities and the Unit Price bid for “ROADWAY STONE” in accordance with the “General
COR & BID & BMP 16
30 CHAIN LINK FENCE This item shall consist of furnishing all materials, equipment, and labor necessary to construct a chain-link safety fence as depicted on the Drawings, AML Standard Details, and as directed by the ENGINEER in accordance with the “Fence” AML Standard Technical Specification.
Special Considerations: None
Measurement: Actual Quantities shall be measured to the next whole linear feet of fence installed and accepted by the ENGINEER.
Payment: Payment shall be the product of Actual Accepted Quantities and the
Unit Price bid for “CHAIN LINK FENCE” in accordance with the “General
COR & BID & BMP 17
Erosion and Sediment Control
Best Management Practices (BMP) Plan
January 2017
COR & BID & BMP 18
OVERVIEW
This Best Management Practices (BMP) plan is a guide for Kentucky Division of Abandoned
Mine Lands (DAML) projects. It contains information regarding preventing, reducing and controlling erosion, sediment, and pollutant runoff from Abandoned Mine Land (AML)
Reclamation and Acid Mine Drainage (AMD) Abatement project construction sites. The information in this BMP will aid DAML staff and contractors in selecting, installing, and maintaining erosion prevention and sediment control measures during the different stages of construction. This BMP plan, in accordance with DAML Technical Specifications and Standard
Drawings, is intended to protect Kentucky’s streams from potential water quality impacts resulting from DAML projects.
This general BMP document is to outline the various pollution prevention measures used on
AML Reclamation or AMD Abatement Projects. The primary sources of pollutants are solids mobilized during storm events and precipitants from mineralized mine drainage. Other sources of pollutants include oil/fuel/grease from servicing and operating construction equipment, concrete washout water, sanitary wastes, and trash/debris.
EROSION PREVENTION AND SEDIMENT CONTROL MEASURES
Plans for Reclamation and AMD abatement construction projects will include erosion control measures on the planview sheets when possible, and will depict Disturbed Drainage Areas
(DDAs) and related information. The construction notes and project description may describe other control measures. The Contractor and Engineer may select an additional BMP for the project as the project changes and construction progresses. Projects that do not have DDAs annotated in the plans will employ the same concepts selecting and implementing this general
BMP plan.
Address disturbed areas or sources of sediments by the most effective means in the specific work area. Direct non-storm water discharges to sediment basins/traps or to a filter fence enclosure in a flat vegetated infiltration area or filtered via another approved commercial product. All deep mine and surface impoundment water will be tested and treated, when as necessary, to meet the
DAML Water-Treatment and Disposal Technical Specification unless stricter limitations are listed in an existing Total Daily Maximum Load (TMDL) limit.
PERMITS
The DAML shall review each project during project development to determine whether any permits are required to implement the project work. When a permit is required, DAML will make every effort to obtain the permit prior to letting the project for bidding. Permit specific conditions shall trump any standard conditions and/or practices. All permits must be maintained onsite and produced when requested by regulatory authorizes inducing representative of the permitting authority.
Common permits types for DAML projects:
COR & BID & BMP 19
• 401 Water Quality Certification (WQC) o Issued by the KY Division of Water
• 402 KY Pollution Discharge Elimination System (KPDES) o DAML activities are covered under the AML KPDES General Permit
• 404 US Army Corps of Engineers (USACE) o Issued by the US Army Corps of Engineers- Nashville District, Louisville District, or Huntington District (Depending upon major drainage basin)
• KY Stream Construction (Floodplain) o Issued by the KY Division of Water
• Local Floodplain Permit o Issued by the County/Municipality
• Local Storm Water Construction o Issued by the County/Municipality
A) Field Review Walk-Thru:
The DAML will conduct a project review between the Project Engineer, Construction Branch
Personnel, Project Design Technician, and Field Office Staff, to review the construction plans and identify any changes needed prior to letting the project for bidding. The group will evaluate the locations and types of site specific BMP and any other erosion prevention and sediment control measures chosen for incorporation into the final design plans.
B) Site Visit Meeting
DAML will present the project specific BMP and permit requirements/conditions to the potential contractors during the site visit meeting.
C) Pre-Construction Conference
Prior to the actual beginning of the project, DAML will hold a pre-construction conference between representatives of the DAML, the Contractor, including any Subcontractors, as well as other interested agencies and parties. Items discussed will include the time and sequence for construction, planned methods of operation, payment, and other relevant questions including any permit requirements and the erosion and sediment control plan.
D) Construction Access
This is the first land-disturbing activity. Construction entrances shall be a minimum of twenty
(20) feet wide by fifty (50) feet long, measured from the shoulder of the public road, and consist of No. 2 aggregate over a heavy weight non-woven filter fabric base. As soon as construction begins, stabilize bare areas with gravel and temporary mulch and/or vegetation.
E) Clearing and Grubbing
Use the following techniques for clearing and grubbing activities:
COR & BID & BMP 20
1) Leave areas undisturbed when possible.
2) Construct silt basins to provide silt volume for large areas.
3) Construct Silt Trap(s) Type A for small areas.
4) Construct Type B silt traps for areas with rapid runoff and sediment-laden runoff.
5) All silt traps should have a 3:1 flow length to width ratio. Add spreader bars, baffles, or turbidity curtains to maintain the flow path ratio when site conditions require traps sizes smaller than the standard detail dimensions.
6) Install geotextile bags and/or rock checks in front of existing drop inlets.
7) Construct diversion ditches to catch sheet runoff and carry it to basins or traps or to divert it around areas to be disturbed.
8) Maintain brush and/or other barriers to slow and/or divert runoff.
9) Construct silt fences/hay bales to catch sheet runoff on short slopes. For longer slopes, multiple rows of silt fence/hay bales may be considered.
10) Apply temporarily mulch to area not actively being disturbed or for any area left undisturbed for fourteen (14) days.
11) Employ non-standard or innovative methods.
F) Stream Crossings / Work Along Streams
1) Temporary low-water stream crossings follow the guidelines included in the DAML
Technical Specifications and those established by the KY Division of Water Floodplain
Management Section. Removal of a temporary crossing may be required to accommodate large storm events.
2) Do not completely block stream flow (even temporary). Instead, utilize some form of pass thru mechanism during all AML projects.
3) Work within a stream channel shall not cause flooding of properties upstream, downstream or within the project area or cause downstream water quality degradation. Minimize equipment contact time with the stream water by diverting water around equipment working in or along streams.
4) No flowing water will interact with any uncured concrete placed in the stream channel.
5) Divert all stream water around the work areas in accordance to methods listed in the DAML
Stream Protection & Relocation technical specification, AML Standard Details Section 60, and as by the appropriate permit guidelines.
6) Temporary out of channel stream diversion must use one of the three approved methods:
pipe diversion, sandbag/stone channel diversion, and/or fabric-based channel diversion.
Do not construct any temporarily diverted channel on bare, erodible soil. No temporary diversion shall be permanent without a 401, 404, and other appropriate permits.
COR & BID & BMP 21
G) Deep Mine and Surface Water Impoundments
The DAML Resident Inspector will test the mine water from deep mines and surface impoundments on the project area to determine the pH and total iron content. Treat the water until it meets the DAML Water-Treatment and Disposal Technical Specification or an existing TMDL, whichever is stricter, before release through a silt control structure(s).
Monitoring & Recording
The DAML Inspector will maintain a log of the pH and total iron content results prior to releasing and during each release day. Perform a minimum of two (2) tests downstream each day to ensure the maintenance of water quality during release and is not degrading the receiving stream.
Types of structures/facilities include:
1) Silt Traps Type A (20’L x 5’W x 2’D min dugout)
2) Silt Traps Type B (20’L x 5’W x 2’D min dugout with rock berm)
3) Silt Check - Rock checks with filter fabric core lining installed in channels and in front of pipes
4) Temporary silt control fence with Class II filter berm
5) Sediment collection bags
H) Cut and Fill and Placement of Drainage Structures
Areas at final grade will be seeded and mulched within five (5) days. Soil stock piles and areas that are not at final grade but where construction will cease for a period of fourteen (14) days or longer, shall receive temporary mulch no later than fourteen (14) days from the last construction activity in that area.
Types of structures/facilities include:
1) Silt Traps Type B (20’L x 5’W x 2’D min dugout with rock berm)
2) Silt Checks - Bags in front of pipes after they are placed
3) Channel lining
4) Erosion control blanket
5) Temporary mulch and/or seeding for areas where construction activities will be ceased for
14 days or more
6) Non-standard or innovative methods
I) Temporary Shutdown
Items to be completed prior to shutdown include:
1) Clean out behind, repair or replace silt fence and/or hay bales
2) Clean out all silt traps
COR & BID & BMP 22
3) Apply temporary mulch and track into the soil
4) Sow cover crop (weather permitting)
J) Finish Work
1) Establish permanent seeding and protection
2) Remove non-permanent silt checks from ditches and drains if protected with other BMPs sufficient to control erosion and vegetation is established.
3) Remove non-permanent silt traps and basins.
4) Remove geotextile silt fence.
5) Planting trees and/or shrubs where they are included in the project.
6) Clean out behind, repair, and/or replace bale silt barriers
7) Clean out all permanent silt traps and basins
K) Post-Construction
The Contractor shall assume responsibility for all workmanship and materials for a period of one year from the date of final payment, as directed by the Contract Documents. Any work found to be defective due to failure to comply with the provisions and intent of the Contract Documents shall be corrected at the Contractor's expense. Problems determined not to be created by the landowner or due to the Contractor will be addressed by the DAML for a period of up to three years, pending available funding.
OTHER CONTROL MEASURES
L) Solid Materials
No solid materials, including rock and building materials, shall be discharged into waters of the
U.S. except as authorized by the Clean Water Act (CWA) Section 401 and Section 404 permits.
M) Waste Materials
Collect and store waste materials that may leach pollutants (paint and paint containers, caulk tubes, oil/grease containers, liquids of any kind, soluble materials, etc.) in appropriate covered waste containers. Remove waste containers from the project site frequently as to not allow wastes to become a source of pollution. Instruct all personnel regarding the correct procedure for waste disposal and dispose of wastes in accordance with appropriate regulations.
N) Hazardous Waste
Manage and dispose of hazardous waste materials in the manner specified by local or state regulation. Notify the Resident Inspector if there are any hazardous wastes generated, and provide a plan for the management and disposal of such materials. Instruct site personnel with regard to proper storage and handling of hazardous wastes when required and use the practices to reduce the risks associated with all hazardous materials. Keep products in original containers
COR & BID & BMP 23
unless they are not re-sealable with the original labels and material safety data sheets (MSDS) will be reviewed and retained.
O) Spill Prevention
Use good housekeeping and material management practices to reduce the risk of spills or other exposure of materials and substances to the weather and/or runoff. Manufacturers' recommended methods for spill cleanup will be maintained on site and readily available upon request. Make personnel aware of procedures and the location of the information and cleanup supplies.
Equipment and materials will include as appropriate, brooms, dust pans, mops, rags, gloves, oil absorbents, sand, sawdust, and plastic and metal trash containers.
Clean up all spills immediately after discovery. Keep the spill area well ventilated. Personnel will wear appropriate protective clothing to prevent injury from contract with a hazardous substance. Report spills of toxic or hazardous material to the appropriate state/local agency as required by KRS 224 and applicable federal law. Wastes from spill cleanup will be disposed of in accordance with appropriate regulations. The spill prevention plan will be adjusted, as needed, to prevent spills from reoccurring and improve spill response and cleanup.
P) Petroleum Products
Monitor vehicles and equipment fueled and maintained on site for leaks, and receive regular preventative maintenance to reduce the chance of leakage. Protect petroleum products onsite will be stored in tightly sealed, clearly labeled containers from exposure to weather. The
CONTRACTOR shall not have a total of over 1,300 gallons of petroleum products on site at any given time.
Q) Fertilizers
Store fertilizers in a covered area away from water. Transfer the contents of any partially used bag of fertilizer to a sealable plastic bin to avoid spills. Once applied, work into the soil and apply mulch to limit exposure to storm water.
R) Concrete Truck Washout
Concrete truck mixers and chutes will not be washed on pavement, near storm drain inlets, or within seventy (75) feet of any ditch, stream, wetland, lake, or sinkhole. Where possible, discharge excess concrete and wash water to areas prepared for pouring new concrete, flat areas to be paved that are away from ditches or drainage system features, or other locations that will not drain off site. Where this approach is not possible, excavate a shallow earthen washbasin away from ditches to receive the wash water.
INSPECTIONS
Use inspection and maintenance practices to maintain erosion and sediment controls:
COR & BID & BMP 24
1) The Contractor and DAML Resident Inspector will inspect all erosion prevention and sediment control measures at least once each week and following any rain of 0.1 inch or more.
2) The DAML Resident Inspector will record the silt control inspections by in their daily report.
3) Silt fences/hay bales will be inspected for bypassing, overtopping, undercutting, depth of sediment, tears, and to ensure attachment to secure posts.
4) Inspect silt traps and basins for depth of sediment, and built-up sediment and clean out when it reaches 50% of the design capacity and at the end of the job.
5) Inspect diversion dikes and berms and promptly repaired any breaches. Repair areas that are eroding or scouring and re-seeded / mulched as needed.
6) Inspect temporary and permanent seeding and mulching for bare spots, washouts, and healthy growth. Repair bare or eroded areas as needed.
7) Inspect all material…
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