Robbins-Key_-_Construction_Plans.pdf

PDF 16 MB Posted Jun 16, 2026

Attached to: 4500-Robbins Key Project
Solicitation number: SRC0000034292
Issued by: Alabama

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Text of 14

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DRAWN BY: MTB

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SHEET NO.

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DATE: 06/05/2026

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ALABAMA DEPARTMENT OF WORKFORCE ABANDONED MINE LAND PROGRAM

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ROBBINS-KEY

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SEAL

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COLBERT

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LIMESTONE

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JACKSON

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CULLMAN

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MARION

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JEFFERSON

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CALHOUN

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PICKENS

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BIBB

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COOSA

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CHAMBERS

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MACON

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AUTAUGA

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MARENGO

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BUTLER

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BARBOUR

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COFFEE

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HOUSTON

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ESCAMBIA

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MOBILE

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LAUDERDALE

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MADISON

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DEKALB

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FRANKLIN

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LAMAR

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WALKER

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ST. CLAIR

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SHELBY

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CLEBURNE

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LEE

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ELMORE

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BULLOCK

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HENRY

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GENEVA

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CRENSHAW

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CONECUH

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WILCOX

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PERRY

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GREENE

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CHOCTAW

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BALDWIN

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MORGAN

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LAWRENCE

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WINSTON

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FAYETTE

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BLOUNT

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ETOWAH

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CHEROKEE

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TUSCALOOSA

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TALLADEGA

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RANDOLPH

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TALLAPOOSA

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RUSSELL

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MONTGOMERY

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PIKE

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DALE

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COVINGTON

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MONROE

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WASHINGTON

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DALLAS

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HALE

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SUMTER

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CHILTON

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CLARKE

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CLAY

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LOWNDES

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MARSHALL

Text ALABAMA DEPARTMENT OF WORKFORCE ABANDONED MINE LAND PROGRAM IN CONJUNCTION WITH U.S. DEPARTMENT OF THE INTERIOR OFFICE OF SURFACE MINING RECLAMATION & ENFORCEMENT

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ROBBINS-KEY RECLAMATION OF ABANDONED MINE LAND WALKER COUNTY

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SHEET INDEX

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SHEET

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DESCRIPTION

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TITLE SHEET

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GENERAL NOTES & QUANTITIES

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AERIAL SITE PLAN

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EROSION CONTROL PLAN (INITIAL PHASE)

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GRADING & DRAINAGE PLAN

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EARTHWORK DISTRIBUTION PLAN

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EROSION CONTROL PLAN (FINAL PHASE)

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CROSS-SECTION LEGEND

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DETENTION POND SECTIONS

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OUTLET CONTROL STRUCTURE DETAILS

Text 11 - 13

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EROSION CONTROL DETAILS

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MISCELLANEOUS DETAILS

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NOT TO SCALE

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STATE MAP

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INDEX TO MAP

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PROJECT LOCATION

Text T: 12 S. T: 13 S.

Text R: 8 W. R: 7 W.

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TO DOUBLE SPRINGS

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TO JASPER

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TITLE SHEET

GENERAL NOTES AND QUANTITIES

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DRAWN BY: MTB

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SHEET NO.

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DATE: 06/05/2026

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ALABAMA DEPARTMENT OF WORKFORCE ABANDONED MINE LAND PROGRAM

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ROBBINS-KEY

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SEAL

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SUMMARY OF QUANTITES

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DESCRIPTION

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UNIT

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QTY.

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MOBILIZATION

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LUMP SUM

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STORMWATER EROSION CONTROL MANAGEMENT

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LUMP SUM

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CLEARING

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ACRES

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UNCLASSIFIED EXCAVATION

Text 16,600

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CU. YDS.

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VARIABLE QUANTITY ITEMS

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DAM BACKFILL & COMPACTION

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CU. YDS.

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SILT FENCE, TYPE A

Text 6,430

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LIN. FT.

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WATTLES (20" DIA.)

Text 1,000

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LIN. FT.

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TERRACES

Text 1,150

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LIN. FT.

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TERRACE EROSION CONTROL BLANKET

Text 1,150

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LIN. FT.

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CONTOUR EROSON CONTROL BLANKET

Text 2,390

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LIN. FT.

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TURF REINFORCEMENT BLANKET

Text 1,900

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LIN. FT.

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NON-WOVEN FILTER FABRIC

Text 2,050

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SQ. YDS.

Text ALDOT No. 24 LIMESTONE

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TONS

Text ALDOT No. 57 LIMESTONE

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TONS

Text ALDOT No. 8910 LIMESTONE

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TONS

Text ALDOT No. 825-B LIMESTONE

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TONS

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RIPRAP, CLASS I LIMESTONE

Text 1,115

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TONS

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RIPRAP, CLASS II LIMESTONE

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TONS

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CONCRETE GROUT

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CU. YDS.

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PIPE, 18" DIA. CORR. PE (N-12) WT/IB

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LIN. FT.

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ANTI-SEEP COLLAR (18" DIA. PIPE)

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EACH

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POND OUTLET CONTROL STRUCTURE

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EACH

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POND SKIMMER (2" DIA.)

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EACH

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DETENTION POND BAFFLES

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LIN. FT.

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EROSION CONTROL POWDER (PAM)

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POUNDS

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EROSION CONTROL FLOC BLOCKS

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EACH

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DOLOMITIC LIME

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TONS

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COMMERCIAL FERTILIZER (13-13-13)

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TONS

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SEEDING

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ACRES

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TEMPORARY SEEDING

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ACRES

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MULCHING

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TONS

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TEMPORARY MULCHING

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TONS

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Text TRAFFIC CONTROL NOTES: 1. ALL TRAFFIC CONTROL SIGNS RELATED TO THIS PROJECT MUST BE INSTALLED AND MAINTAINED IN ACCORDANCE WITH THE MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES (MUTCD) , CURRENT EDITION. 2. ALL FLAGGING OPERATIONS OR OTHER METHODS FOR TEMPORARY TRAFFIC CONTROL MUST BE PERFORMED IN ACCORDANCE WITH THE MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES (MUTCD) , CURRENT EDITION. 3. THE CONTRACTOR MUST REMOVE OR COVER ANY SIGNS RELATED TO TEMPORARY TRAFFIC CONTROL WHICH ARE NO LONGER APPLICABLE OR ACTIVELY IN USE, AS DIRECTED BY THE PROJECT MONITOR. GENERAL CONSTRUCTION NOTES: 1. THE CONTRACTOR SHALL NOT BE PERMITTED TO CONDUCT ANY CONSTRUCTION ACTIVITIES BEYOND THE PROJECT LIMITS WITHOUT WRITTEN APPROVAL FROM THE DEPARTMENT IN ADVANCE. 2. THE CONTRACTOR SHALL BE RESPONSIBLE FOR LOCATING AND PROTECTING ANY UTILITY LINES WITHIN OR ADJACENT TO THE PROJECT LIMITS AND ACCESS THEREOF. ANY DAMAGE TO THESE LINES RELATED TO THIS PROJECT SHALL BE REPAIRED OR REPLACED AT THE CONTRACTOR'S EXPENSE 3. THE CONTRACTOR SHALL BE RESPONSIBLE FOR LOCATING AND PROTECTING ALL SURVEY MARKERS, BENCHMARKS, AND PROPERTY CORNERS WITHIN OR ADJACENT TO THE PROJECT LIMITS AND ACCESS THEREOF. ANY DAMAGE OR DISTURBANCE OF THESE MONUMENTS SHALL BE REPAIRED AT THE CONTRACTOR'S EXPENSE BY A LICENSED PROFESSIONAL LAND SURVEYOR WHO IS REGISTERED WITH THE STATE OF ALABAMA. 4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ANY BURN PERMITS NECESSARY FOR THIS PROJECT AND MUST UTILIZE AN APPROVED TRENCH BURNER WHEN CONDUCTING THESE ACTIVITIES. 5. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PREPARING AND MAINTAINING AN ONSITE COPY OF THE SPILL PREVENTION, CONTROL, & COUNTERMEASURE (SPCC) PLAN FOR ALL OILS, FUELS, OR OTHER ITEMS WHICH WILL BE STORED OR USED ON THE SITE. 6. ANY FUEL TANKS STORED ON THE SITE MUST BE KEPT INSIDE OF AN EARTHEN CONTAINMENT BERM WHICH MEETS THE REQUIREMENTS OUTLINED BY ADEM AND THE CONTRACT SPECIFICATIONS. 7. ANY EQUIPMENT WHICH THE DEPARTMENT DETERMINES TO HAVE AN EXCESSIVE LEAK MUST BE IMMEDIATELY REPAIRED OR REMOVED FROM THE SITE UNTIL SUCH TIME THAT THE REPAIRS HAVE BEEN COMPLETED. 8. ANY DEBRIS, SUCH AS TRASH, TIRES, ABANDONED VEHICLES, OR OTHER FOREIGN OBJECTS WHICH ARE DISCOVERED DURING CONSTRUCTION ACTIVITIES MUST BE COLLECTED AND DISPOSED OF IN A TIMELY MANNER AT AN APPROVED LANDFILL. THE CONTRACTOR MUST PROVIDE DOCUMENTATION OF THE LAWFUL DISPOSAL OR SELL OF ANY CLEARED MATERIALS TO THE PROJECT MONITOR. 9. ANY FEES, FINES, VIOLATIONS, PENALTIES, ETC. ASSESSED AGAINST THIS PROJECT SHALL BE THE SOLE RESPONSIBILITY OF THE CONTRACTOR. EROSION CONTROL NOTES: 1. ANY DISTURBED AREAS WHICH REMAIN UNTOUCHED FOR A CONSECUTIVE PERIOD OF THIRTEEN (13) DAYS MUST BE IMMEDIATELY VEGETATED. 2. PRIOR TO COMMENCING ANY CONSTRUCTION ACTIVITIES, THE CONTRACTOR MUST HAVE THE ADEM SMALL MINING GENERAL PERMIT (ALG890000) TRANSFERED INTO THEIR NAME AND SHALL ABIDE BY ALL RULES AND REGULATIONS OUTLINED THEREIN. 3. THE CONTRACTOR SHALL BE REQUIRED TO INSTALL TWO (2) RAIN GAUGES FOR THE SITE AND THE PERMIT IDENTIFICATION SIGN AT LOCATIONS DICTATED BY THE PROJECT MONITOR. THESE DEVICES SHALL BE MAINTAINED BY THE CONTRACTOR FOR THE DURATION OF THE PROJECT. 4. THE CONTRACTOR SHALL BE REQUIRED TO IMPLEMENT A BEST MANAGEMENT PRECTICES (BMP) PLAN AND PROVIDE A QCP FOR CONDUCTING REGULAR SITE INSPECTIONS / REPORTING DATA TO ADEM AS OUTLINED IN THE SMALL MINING GENERAL PERMIT . 5. ALL BMP's / EROSION CONTROL STRUCTURES MUST BE INSTALLED IN ACCORDANCE WITH THE CURRENT EDITION OF THE ALABAMA HANDBOOK FOR EROSION CONTROL, SEDIMENT CONTROL, & STORMWATER MANAGEMENT ON CONSTRUCTION SITES AND URBAN AREAS . INSTALLATION OF ALL INITIAL PHASE EROSION CONTROL ITEMS MUST BE COMPLETED PRIOR TO THE MASS CLEARING OF THE SITE. 6. THE CONTRACTOR SHALL BE REQUIRED TO PERFORM ROUTINE MAINTENANCE AND / OR REPLACEMENT OF THE SITE'S EROSION CONTROL ITEMS FOR THE DURATION OF THE PROJECT. ANY SEDIMENT WHICH ACCUMULATES ALONG THESE STRUCTURES MUST BE REMOVED AT REGULAR TIME INTERVALS OR WHEN REQUIRED BY THE PROJECT MONITOR.

GRADING NOTES: 1. ALL EARTHWORK SHALL BE APPROACHED IN A STRATEGIC MANNER WHICH PLACES FIRST PRIORITY ON REMOVING THE SITES IMPOUNDED WATER BODIES AND THEN ON CONSTRUCTING ANY TEMPORARY BASINS OR DETENTION PONDS. MASS GRADING SHALL BE PERFORMED AT THE PROJECT ENGINEER'S DISCRETION AND MAY BE SUSPENDED AT ANY TIME IF THE CONTRACTOR FAILS TO COMPLY WITH REQUIREMENTS OUTLINED IN THESE PLANS OR THE CONTRACT SPECIFICATIONS. 2. THE CONTRACTOR SHALL EVALUATE THE SITE AND STOCKPILE THE BEST AVAILABLE MATERIAL FOR CONSTRUCTION OF ANY REQUIRED POND DAMS. THIS MATERIAL MUST BE APPROVED BY THE DEPARTMENT IN ADVANCE AND SHOULD EXHIBIT GOOD COHESIVE QUALITIES. 3. THE OUTLET CONTROL STRUCTURE AND ASSOCIATED OUTFALL PIPE SHALL BE CONSTRUCTED AT THE LOCATION / ELEVATIONS SHOWN ON THE PLANS AND MAY NOT BE ADJUSTED WITHOUT PRIOR APPROVAL FROM THE PROJECT ENGINEER. THE CONTRACTOR SHALL BE RESPONSIBLE FOR KEEPING THESE STRUCTURES FREE OF ANY SEDIMENT OR OTHER DEBRIS FOR THE DURATION OF THE PROJECT. PROJECT FINALIZATION NOTES: 1. FINAL INSPECTION OF THE PROJECT SHALL NOT BE CONDUCTED UNTIL ALL ITEMS OF WORK HAVE BEEN COMPLETED TO THE SATISFACTION OF THE PROJECT MONITOR AND ALL NON-ESSENTIAL EQUIPMENT / MATERIALS HAVE BEEN REMOVED FROM THE SITE. THE PERMIT IDENTIFICATION SIGN AND RAIN GAUGES MUST REMAIN ONSITE UNTIL THE STORMWATER DISCHARGE PERMIT HAS BEEN RELEASED BY ADEM. 2. THE FINAL PAY REQUEST SHALL NOT BE SUBMITTED UNTIL THE DEPARTMENT HAS COMPLETED ITS FINAL INSPECTION OF THE SITE AND APPROVED OF THE PROJECT'S COMPLETENESS. STATE HISTORIC PRESERVATION OFFICER (SHPO) SPECIAL NOTE: 1. THE CONTRACTOR SHALL BE RESPONSIBLE FOR NOTIFYING THE PROJECT MONITOR IF ANY ARTIFACTS OR ARCHAEOLOGICAL FEATURES ARE ENCOUNTERED DURING CONSTRUCTION ACTIVITIES. WORK SHALL CEASE, AND THE ALABAMA HISTORICAL COMMISSION SHALL BE NOTIFIED IMMEDIATELY. ARTIFACTS SHALL BE DEFINED AS ANY OBJECTS MADE, USED, OR MODIFIED BY HUMANS. THIS SHALL INCLUDE, BUT IS NOT LIMITED TO: ARROWHEADS, BROKEN PIECES OF POTTERY OR GLASS, STONE IMPLEMENTS, METAL FASTENERS OR TOOLS, ETC. ARCHAEOLOGICAL FEATURES ARE STAINS IN THE SOIL THAT INDICATE DISTURBANCE BY HUMAN ACTIVITY. SOME EXAMPLES ARE POST HOLES, BUILDING FOUNDATIONS, TRASH PITS, AND EVEN HUMAN BURIALS.

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DRAWN BY: MTB

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SHEET NO.

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DATE: 06/05/2026

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ALABAMA DEPARTMENT OF WORKFORCE ABANDONED MINE LAND PROGRAM

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ROBBINS-KEY

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SEAL

Text COORDINATE SYSTEM HORIZONTAL: STATE PLANE, NAD 83, ALABAMA WEST ZONE - 0102, U.S. SURVEY FEET VERTICAL: NAVD 88, U.S. SURVEY FEET

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TARGET / BACKSITE

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EASTING

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NORTHING

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ELEVATION

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ROB01

Text 2,020,806.347

Text 1,437,448.080

Text 542.997

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ROB02

Text 2,021,177.197

Text 1,435,500.906

Text 541.795

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ROB03

Text 2,022,523.711

Text 1,436,414.273

Text 535.274

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LEGEND

Text

NOTE: SEE SHEET 2 FOR GENERAL NOTES

Text PROJECT LIMITS DANGEROUS HIGHWALL PROPERTY LINE CONSTRUCTION SIGNAGE CONSTRUCTION EXIT PAD / ACCESS ROAD EXISTING PAVED ROAD EXISTING UNPAVED ROAD GROUND CONTROL SURVEY POINT

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Text N

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SCALE: 1" = 200'

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AL-195

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AMERSON ROAD

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MARIGOLD ROAD

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BENNETT ROAD

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CHARLIES CREEK

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EXISTING IMPOUNDMENTS

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APPROXIMATE LIMITS OF DANGEROUS HIGHWALL

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ADEM FACILITY SIGN

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CONSTRUCTION EXIT PAD (APPROX. 100 LIN FT) (SEE DETAIL ON SHEET 14)

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RECLAMATION AREA ±9 ACRES

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CONSTRUCTION ACCESS ROAD (APPROX. 663 LIN FT) (SEE DETAIL ON SHEET 14)

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INDUSTRIAL/RESIDENTIAL WASTE DUMP

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TRUCKS ENTERING ROADWAY AHEAD

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CONSTRUCTION ENTRANCE 500 FT

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CONSTRUCTION ENTRANCE 500 FT

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TRUCKS ENTERING ROADWAY AHEAD

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AERIAL SITE PLAN

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Text NOTES: 1. SEE SHEET 14 FOR DETAILS ON ALL CONSTRUCTION SIGNS. 2. THE PROPERTY LINES SHOWN WERE OBTAINED THROUGH A THIRD PARTY. THEIR ACCURACY IS NOT GUARANTEED BY THE DEPARTMENT, AND THEY ARE INCLUDED FOR INFORMATIONAL PURPOSES ONLY.

PROPERTY LINE (TYP.)

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LEGEND

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DRAWN BY: MTB

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SHEET NO.

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DATE: 06/05/2026

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ALABAMA DEPARTMENT OF WORKFORCE ABANDONED MINE LAND PROGRAM

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ROBBINS-KEY

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SEAL

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NOTE: SEE SHEET 2 FOR GENERAL NOTES

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Text PROJECT LIMITS DANGEROUS HIGHWALL SILT FENCE (TYPE "A") RIPRAP CHECK DAM CONSTRUCTION EXIT PAD / ACCESS ROAD EXISTING CONTOURS (2') EXISTING CONTOURS (10')

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Text N

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SCALE: 1" = 40'

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CONSTRUCTION ACCESS ROAD (SEE DETAIL ON SHEET 14)

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APPROXIMATE LIMITS OF CONSTRUCTION (TYP)

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APPROXIMATE LIMITS OF CONSTRUCTION (TYP)

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APPROXIMATE LIMITS OF DANGEROUS HIGHWALL

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TYPE II RIP RAP OUTFALL SUMP AND CHECK DAM (NTS, SEE DETAIL ON SHEET 12)

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DOUBLE ROW SILT FENCE (SEE DETAIL ON SHEET 12)

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DOUBLE ROW SILT FENCE (SEE DETAIL ON SHEET 12)

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DOUBLE ROW SILT FENCE (SEE DETAIL ON SHEET 12)

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SILT FENCE (SEE DETAIL ON SHEET 12)

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EROSION CONTROL PLAN INTIAL PLAN

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TYPE II RIP RAP OUTFALL SUMP AND CHECK DAM (NTS, SEE DETAIL ON SHEET 12)

DOUBLE ROW SILT FENCE (SEE DETAIL ON SHEET 12)

Text

Text 4.5:1

Text 65:1

Text 3:1

Text 10:1

Text 3:1

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Text 5:1

Text 4:1

Text 5.25:1

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DRAWN BY: MTB

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SHEET NO.

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DATE: 06/05/2026

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ALABAMA DEPARTMENT OF WORKFORCE ABANDONED MINE LAND PROGRAM

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ROBBINS-KEY

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SEAL

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LEGEND

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NOTE: SEE SHEET 2 FOR GENERAL NOTES

Text PROJECT LIMITS SILT FENCE (TYPE "A") DRAINAGE FLOW DIRECTION SLOPE INDICATOR STORM DRAINAGE PIPING FAIRCLOTH SKIMMER OUTLET CONTROL STRUCTURE RIPRAP DOWN DRAIN / DITCH / CHECK DAM / SPLASH APRON CONSTRUCTION EXIT PAD / ACCESS ROAD PROPOSED CONTOURS (2') PROPOSED CONTOURS (10') EXISTING CONTOURS (2') EXISTING CONTOURS (10')

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Text 6:1

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Text N

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SCALE: 1" = 40'

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DRAINAGE DITCH ±825 LF @ ±1.0%

Text 48" DIAMETER PRECAST OUTLET CONTROL STRUCTURE AND SKIMMER (SEE DETAIL ON SHEET 10)

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175 LF 18" CORRUGATED HDPE @ ±1.14%

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SPLASH APRON (SEE DETAIL ON SHEET 11)

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±64 LF RIPRAP-ARMORED EMERGENCY SPILLWAY

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DRAINAGE DITCH ±80 LF @ ±20.0%

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DRAINAGE DITCH ±96 LF @ ±16.7%

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DRAINAGE DITCH ±56 LF @ ±17.9%

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GRADING & DRAINAGE PLAN

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DRAINAGE DITCH ±105 LF @ ±16.0%

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Text ±0 CY Cut ±688 CY Fill ±688 CY Net Fill

Text ±186 CY Cut ±3,462 CY Fill ±3,276 CY Net Fill

Text ±119 CY Cut ±0 CY Fill ±119 CY Net Cut

Text ±1,128 CY Cut ±9 CY Fill ±1,119 CY Net Cut

Text ±6 CY Cut ±2,958 CY Fill ±2,952 CY Net Fill

Text ±3 CY Cut ±15 CY Fill ±12 CY Net Fill

Text ±0 CY Cut ±9 CY Fill ±9 CY Net Fill

Text ±149 CY Cut ±836 CY Fill ±687 CY Net Fill

Text ±1,389 CY Cut ±1,080 CY Fill ±309 CY Net Cut

Text ±10 CY Cut ±140 CY Fill ±130 CY Net Fill

Text ±8,939 CY Cut ±47 CY Fill ±8,892 CY Net Cut

Text ±2,592 CY Cut ±1,168 CY Fill ±1,424 CY Net Cut

Text ±832 CY Cut ±2,573 CY Fill ±1,741 CY Net Fill

Text ±137 CY Cut ±2,442 CY Fill ±2,305 CY Net Fill

Text ±11 CY Cut ±806 CY Fill ±795 CY Net Fill

Text ±7 CY Cut ±86 CY Fill ±79 CY Net Fill

Text ±209 CY Cut ±281 CY Fill ±72 CY Net Fill

Text ±719 CY Cut ±0 CY Fill ±719 CY Net Cut

Text ±164 CY Cut ±0 CY Fill ±164 CY Net Cut

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DRAWN BY: MTB

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SHEET NO.

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DATE: 06/05/2026

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ALABAMA DEPARTMENT OF WORKFORCE ABANDONED MINE LAND PROGRAM

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ROBBINS-KEY

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SEAL

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EARTHWORK DISTRIBUTION CHART

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AREA

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APPROXIMATE VOLUME (CY)

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CUT

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FILL

Text A-4

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Text A-5

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Text B-3

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Text B-4

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Text B-5

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Text C-3

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Text C-4

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Text C-5

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Text D-3

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Text D-4

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Text D-5

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Text E-3

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Text E-4

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Text F-1

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Text F-2

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Text F-3

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Text F-4

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Text G-2

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Text G-3

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TOTAL:

Text 16600

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LEGEND

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NOTE: SEE SHEET 2 FOR GENERAL NOTES

Text PROJECT LIMITS CUT / FILL AREA BOUNDARY CONSTRUCTION EXIT PAD / ACCESS ROAD FILL AREA CUT AREA PROPOSED CONTOURS (2') PROPOSED CONTOURS (10') EXISTING CONTOURS (2') EXISTING CONTOURS (10')

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Text A

Text B

Text C

Text D

Text E

Text F

Text G

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Text N

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SCALE: 1" = 40'

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EARTHWORK DISTRIBUTION PLAN

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NOTES: 1. SURVEY DATA WAS OBTAINED THROUGH A THIRD PARTY, AND ITS ACCURACY IS NOT GUARANTEED BY THE DEPARTMENT. EARTHWORK VOLUMES SHOWN ARE APPROXIMATE, AND FIELD ADJUSTMENTS MAY BE NECESSARY. SEE CONTRACT SPECIFICATIONS FOR ADDITIONAL INFORMATION. 2. THE OFF-SITE HAULING OF ANY SPOIL MATERIAL SHALL NOT BE PERMITTED. THE CONTRACTOR MUST UNIFORMLY SPREAD ANY EXCESS MATERIAL ACROSS A PORTION OF THE SITE WHICH HAS BEEN APPROVED BY THE AML PROJECT ENGINEER.

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DRAWN BY: MTB

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SHEET NO.

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DATE: 06/05/2026

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ALABAMA DEPARTMENT OF WORKFORCE ABANDONED MINE LAND PROGRAM

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ROBBINS-KEY

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SEAL

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LEGEND

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NOTE: SEE SHEET 2 FOR GENERAL NOTES

Text PROJECT LIMITS SILT FENCE (TYPE "A") DETENTION POND BAFFLES TERRACE EROSION CONTROL BLANKET TURF REINFORCEMENT BLANKET RIPRAP DOWN DRAIN / DITCH / CHECK DAM / SPLASH APRON CONSTRUCTION EXIT PAD / ACCESS ROAD PROPOSED CONTOURS (2') PROPOSED CONTOURS (10') EXISTING CONTOURS (2') EXISTING CONTOURS (10')

Text

Text N

Text

SCALE: 1" = 40'

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RIPRAP-LINED SPILLWAY (SEE DETAIL ON SHEET 14)

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RIPRAP-LINED DITCH WITH NON-WOVEN FILTER FABRIC

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TYPE II RIPRAP CHECKDAM (SEE DETAIL ON SHEET 12)

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RIPRAP-LINED DITCH WITH NON-WOVEN FILTER FABRIC

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RIPRAP-LINED DITCH WITH NON-WOVEN FILTER FABRIC

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TYPE I RIPRAP CHECKDAM (SEE DETAIL ON SHEET 12)

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SPLASH APRON (SEE DETAIL ON SHEET 11)

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TERRACE; ±105 LF @ ±2% (SEE DETAIL ON SHEET 11)

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TERRACE; ±45 LF @ ±2% (SEE DETAIL ON SHEET 11)

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TERRACE; ±70 LF @ ±2% (SEE DETAIL ON SHEET 11)

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TERRACE; ±295 LF @ ±2% (SEE DETAIL ON SHEET 11)

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TERRACE; ±300 LF @ ±2% (SEE DETAIL ON SHEET 11)

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TERRACE; ±185 LF @ ±2% (SEE DETAIL ON SHEET 11)

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DETENTION POND BAFFLES (SEE DETAIL ON SHEET 11)

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TYPE II RIPRAP CHECKDAM (SEE DETAIL ON SHEET 12)

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EROSION CONTROL PLAN FINAL PHASE

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CONTOUR EROSION CONTROL BLANKET (SEE DETAIL ON SHEET 13)

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CONTOUR EROSION CONTROL BLANKET (SEE DETAIL ON SHEET 13)

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GRASS DITCH WITH TURF REINFORCEMENT BLANKET (SEE DETAIL ON SHEET 11)

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TYPE I RIPRAP CHECKDAM (SEE DETAIL ON SHEET 12)

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TYPE II RIPRAP CHECKDAM (SEE DETAIL ON SHEET 12)

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TYPE I RIPRAP CHECKDAM (SEE DETAIL ON SHEET 12)

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RIPRAP-LINED DITCH WITH NON-WOVEN FILTER FABRIC

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TERRACE; ±55 LF @ ±2% (SEE DETAIL ON SHEET 11)

TERRACE; ±50 LF @ ±2% (SEE DETAIL ON SHEET 11)

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DRAWN BY: MTB

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SHEET NO.

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DATE: 06/05/2026

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ALABAMA DEPARTMENT OF WORKFORCE ABANDONED MINE LAND PROGRAM

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ROBBINS-KEY

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SEAL

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LEGEND

Text PROJECT LIMITS SLOPE PROTECTION BLANKET OUTFALL ENERGY DISSIPATER RIPRAP DOWN DRAIN / DITCH / CHECK DAM / SPLASH APRON CONSTRUCTION EXIT PAD / ACCESS ROAD PROPOSED CONTOURS (2') PROPOSED CONTOURS (10') EXISTING CONTOURS (2') EXISTING CONTOURS (10')

Text NOTES: 1. FOR SECTIONS A, B, C, D , REFER TO SHEET 9 . 2. FOR SECTIONS E, F, G REFER TO SHEET 11 .

Text

Text N

Text

SCALE: 1" = 40'

Text

Text B

Text A

Text G

Text F

Text E

Text F

Text C

Text B'

Text A'

Text C'

Text G'

Text F'

Text E'

Text F'

Text D

Text D'

Text

CROSS-SECTION LEGEND

Text

Text F

0+00

Text 0+10

Text 0+20

Text 0+30

Text 0+40

Text 0+50

Text 0+60

Text 0+70

Text 0+80

Text 0+90

Text 1+00

Text 1+10

Text

Text 0+00

Text 0+10

Text 0+20

Text 0+30

Text 0+40

Text 0+50

Text 0+60

Text 0+70

Text 0+80

Text 0+90

Text 1+00

Text 1+10

Text 1+20

Text 1+30

Text 1+40

Text 1+50

Text

Text 0+00

Text 0+10

Text 0+20

Text 0+30

Text 0+40

Text 0+50

Text 0+60

Text 0+70

Text 0+80

Text 0+90

Text 1+00

Text 1+10

Text 1+20

Text 1+30

Text 1+40

Text 1+50

Text 1+60

Text 1+70

Text 1+80

Text 1+90

Text 2+00

Text 2+10

Text 2+20

Text 2+30

Text 2+40

Text

Text 0+00

Text 0+10

Text 0+20

Text 0+30

Text 0+40

Text 0+50

Text 0+60

Text 0+70

Text 0+80

Text 0+90

Text 1+00

Text 1+10

Text 1+20

Text 1+30

Text 1+40

Text 1+50

Text 1+60

Text 1+70

Text 1+80

Text 1+90

Text 2+00

Text 2+10

Text 2+20

Text 2+30

Text 2+40

Text

Text of 14

Text

DRAWN BY: MTB

Text

SHEET NO.

Text

DATE: 06/05/2026

Text

ALABAMA DEPARTMENT OF WORKFORCE ABANDONED MINE LAND PROGRAM

Text

ROBBINS-KEY

Text

SEAL

Text

SCALE: 1" = 10'

Text

LEGEND

Text

NOTE: SEE SHEET 2 FOR GENERAL NOTES

Text

PROPOSED GRADE EXISTING GRADE

Text

PROPOSED GRADE

Text

EXISTING GRADE

Text

BOTTOM OF POND

Text

DETENTION POND BAFFLE

Text

SEE SHEET 7 FOR BAFFLE LAYOUT

Text

POND SECTION B-B'

Text (B)

Text (B')

Text

POND SECTION C-C'

Text (C)

Text (C')

Text

POND SECTION D-D'

Text (D)

Text (D')

Text

SEE SHEET 7 FOR BAFFLE LAYOUT

Text

DETENTION POND BAFFLE

Text

DETENTION POND BAFFLE

Text

BOTTOM OF POND

Text

PROPOSED GRADE

Text

PROPOSED GRADE

Text

EXISTING GRADE

Text

EXISTING GRADE

Text

DAM EXCAVATION AND BACKFILL (SEE NOTES)

Text

TOP OF DAM ELEV = 498.00'

Text

TOP OF SPILLWAY ELEV = 496.00'

Text

18" OUTFALL PIPE (SEE NOTE)

Text

PROPOSED GRADE

Text

PROPOSED GRADE

Text

EXISTING GRADE

Text

EXISTING GRADE

Text

%%UNOTE:%%U DIMENSIONS OF OUTFALL PIPE ARE MISREPRESENTED DUE TO SKEW

Text

%%UNOTE:%%U DIMENSIONS OF DAM ARE MISREPRESENTED DUE TO PIPE SKEW

Text

TOP OF DAM' ELEV. 498.00' 15' WIDTH (SEE NOTE)

Text

RIPRAP AT OCS - COVER OUTFALL PIPE AS NEEDED

Text

ELEV. 496.00'

Text

OUTLET CONTROL STRUCTURE

Text PAD OF CRUSHED STONE (No. 24 ALDOT) TO BE PLACED UNDER SKIMMER

Text

2" SEDIMENT SKIMMER (SEE DETAIL SHEET 10)

Text

ORIFICE ELEV. 493.65' BOTTOM POND ELEV. 493.00'

Text

PROPOSED GRADE

Text

ANTI-SEEP COLLAR (SEE DETAIL SHEET 14)

Text

ANTI-SEEP COLLAR (SEE DETAIL SHEET 14)

Text

RIPRAP OUTFALL PROTECTION (SEE DETAIL SHEET 11)

Text

INV. ELEV. 491.00

Text AREA BELOW PIPE TO BE EXCAVATED TO SUITABLE IN-PLACE MATERIAL OR ROCK AND THE BACKFILLED MATERIAL PLACED AND COMPACTED TO THE REQUIRED DENSITY. CONTRACTOR SHALL LAY BACK SLOPES OR USE TRENCH BOXES FOR STORM PIPE INSTALLATION IN ACCORDANCE WITH OSHA STANDARDS.

Text

37.5 LF ANTI-SEEP COLLAR SPACING

Text

50 LF ANTI-SEEP COLLAR SPACING

Text

DAM EXCAVATION AND BACKFILL (SEE NOTES)

Text

DETENTION POND SECTIONS

Text

Text PIPE INSTALLATION NOTES: 1. THE CONTRACTOR SHALL BE REQUIRED TO CONSTRUCT THE POND DAM TO AN ELEVATION AT LEAST TWO (2) FEET ABOVE THE TOP OF PIPE PRIOR TO INSTALLING ANY PIPES OR EXCAVATING FOR THE ASSOCIATED TRENCH. SEE PROJECT SPECIFICATIONS FOR ADDITIONAL INFORMATION. 2. ALL EXCAVATION, BACKFILL, AND COMPACTION NECESSARY FOR INSTALLATION OF THE OUTFALL PIPE IS CONSIDERED A SUBSIDIARY OBLIGATION OF THE PIPE ITEM. 3. ADDITIONAL COMPACTION TESTING SHALL BE REQUIRED FOR EACH LIFT WHEN BACKFILLING THE REQUIRED PIPE TRENCH.

Text

175 LF HDPE PIPE (ADS N-12) @ ±1.14%

Text

POND SECTION A-A'

Text (A)

Text (A')

TOP OF DAM' ELEV. 498.00' 15' WIDTH

Text

DRAWN BY: MTB

Text

SHEET NO.

Text

DATE: 06/05/2026

Text

ALABAMA DEPARTMENT OF WORKFORCE ABANDONED MINE LAND PROGRAM

Text

ROBBINS-KEY

Text

SEAL

Text

2.5" PVC FLOAT

Text

1.5" SCH. 40 SOLID PVC BARREL OR "ARM" (SUPPLIED BY CONTRACTOR)

Text

1.5" FLEX. HOSE, STAINLESS STEEL CLAMPS, 2" THREADED MALE FITTING ON OUTLET END

Text

2" INLET EXTENSION

Text

BARREL

Text

1" VENT WITH YELLOW TIP

Text

2.5" PVC FLOAT

Text

ALUMINUM STRAPS SUSPENDING HORIZONTAL INTAKE

Text

2" ORIFICE INLET

Text

WATER ENTRY UNIT WITH TRASH SCREEN

Text

2" INLET EXTENSION

Text CRUSHED STONE PAD (No. 24 ALDOT) TO BE PLACED UNDER THE SKIMMER

Text

1.5" SCH. 40 SOLID PVC BARREL OR "ARM" (SUPPLIED BY CONTRACTOR)

Text

1.5" FLEX. HOSE, STAINLESS STEEL CLAMPS, 2" THREADED MALE FITTING ON OUTLET END

Text NOTE; SKIMMER SHALL SIT LEVEL ON THE PAD TO PREVENT TRASH AND DEBRIS FROM CLOGGING THE INTAKE ORIFICE OPENING. ROPE SHALL BE TIED TO SKIMMER AND ANCHORED ON THE SIDE OF THE DAM FOR ACCESSING THE SKIMMER TO CLEAN.

Text

SUPPLIED BY CONTRACTOR

Text NOTE; ANY ALTERATION FROM THE SPECIFIED POND SKIMMER SHALL REQUIRE APPROVAL FROM THE PROJECT ENGINEER

Text 2" SCH. 40 PVC COUPLING (CONTRACTOR SHALL FURNISH ALL ITEMS FROM 2" EXTENSION TO OUTLET STRUCTURE CONNECTION)

Text

2" SCH. 40 PVC COUPLING

Text

FLEXIBLE HOSE MUST BE SECURELY FASTENED TO THE DISCHARGE OPENING

Text

1' MIN.

Text

1' MIN.

Text

OUTLET CONTROL STRUCTURE

Text

WATER

Text

END VIEW

Text

2" FAIRCLOTH SKIMMER DETAIL N.T.S.

Text

TOP VIEW N.T.S.

Text 22"

Text

WATER

Text

BOTTOM OF POND

Text

1.5" PVC PIPE

Text

VARIES

Text 1'

Text

1" VENT WITH YELLOW TIP AND ELBOW

Text

WATER ENTRY UNIT WITH TRASH SCREEN

Text

2.5" PVC FLOAT

Text

SKIMMER

Text CRUSHED STONE PAD (ALDOT No. 24) TO BE PLACED UNDER THE SKIMMER

Text NOTES : 1. FAIRCLOTH SKIMMER SIZING DETAILS ● SKIMMER SIZE = 2" ● ORIFICE RADIUS = 0.75" / ORIFICE DIAMETER = 1.5" 2. REFER TO FAILCLOTH SKIMMER CUT SHEET AND INSTRUCTIONS FOR ASSEMBLY, USE, AND MAINTENANCE DOCUMENT FOR ADDITIONAL INFORMATION.

Text

TOP VIEW N.T.S.

Text

SIDE VIEW N.T.S.

Text

OUTLET CONTROL STRUCTURE DETAILS

Text

DETENTION POND OUTLET CONTROL STRUCTURE N.T.S.

Text

ELEV. 493.00'

Text

1.5" PVC INLET PIPE

Text

ELEV. 493.00'

Text

1.5" BALL VALVE

Text

CAST IRON INLET GRATE (SEE NOTE 2)

Text NOTES : 1. ANY PIPES ASSOCIATED WITH THE OUTLET CONTROL STRUCTURE MUST BE SEALED WITH CONCRETE GROUT AND ALLOWED TO CURE FOR 24 HOURS PRIOR TO PLACING ANY BACKFILL. 2. THE REQUIRED GRATE SHALL BE SIZED TO COVER THE ORIFICE. THE GRATE SHALL BE SECURELY ATTACHED TO THE STRUCTURE LID VIA GALVANIZED OR ZINC COATED 5/8" APT MASONRY BOLTS WHICH ARE AT LEAST 3 INCHES IN LENGTH. WITH THE APPROVAL OF THE ENGINEER, THE DIMENSIONS OF THE ORIFICE MAY BE ADJUSTED TO ACCOMMODATE THE SIZE OF THE CONTRACTOR'S PREFERRED GRATE. 3. THE SKIMMER SHUTOFF VALVE MUST REMAIN CLOSED AT ALL TIMES UNLESS THE POND IS BEING ACTIVELY DRAINED. THE CONTRACTOR SHOULD CONFIRM THE VALVE IS CLOSED PRIOR TO EACH STORM EVENT.

Text EXTENSION HANDLE FOR SKIMMER SHUTOFF VALVE (CONTRACTOR TO FABRICATE AS NECESSARY)

Text 2.5"

Text 5"

Text 27.5"

Text

1' MAX

Text

18" OUTLET PIPE

Text

1.5" PVC INLET PIPE

Text

18" OUTLET PIPE

Text

CAST IRON INLET GRATE (SEE NOTE 2)

Text

SIDE VIEW

Text

SKIMMER SHUTOFF HANDLE

Text

CAST IRON INLET GRATE (SEE NOTE 2)

Text

FRONT VIEW

Text

PLAN VIEW

Text

18" OUTLET PIPE

Text

1.5" PVC INLET PIPE

Text

REQUIRED ORIFICE

Text 48"

Text 6"

Text 2.5"

Text

ELEV. 493.65'

Text

ELEV. 494.50'

Text

ELEV. 494.71'

Text

ELEV. 496.00'

Text

ELEV. 493.65'

Text

ELEV. 494.50'

Text

ELEV. 494.71'

Text

ELEV. 496.00'

Text C

Text L

Text C

Text L

Text

GROUT AS NEEDED FOR DRAINAGE

Text 8" Min.

Text 48"

Text 6" Min.

Text 48"

Text 6" Min.

Text 8" Min.

Text 6" Min.

Text 8" Min.

Text 27.75"

25"

Text

DRAWN BY: MTB

Text

SHEET NO.

Text

DATE: 06/05/2026

Text

ALABAMA DEPARTMENT OF WORKFORCE ABANDONED MINE LAND PROGRAM

Text

ROBBINS-KEY

Text

SEAL

Text

EROSION CONTROL DETAILS

Text

TOP OF DAM

Text

FLOW

Text

TYPE 2 CHECKDAM (ARCED AROUND PIPE)

Text

SPLASH APRON (1.5' THICK)

Text

POND OUTFALL PIPE

Text NOTES : 1. SPILLWAY ELEVATION OF CHECKDAM MUST NOT EXCEED CENTERLINE OF PIPE. 2. RIPRAP SALVAGED FROM PREVIOUSLY CONSTRUCTED CHECK DAMS SHALL BE REASONABLY CLEANED TO THE PROJECT MONITOR's SATISFACTION PRIOR TO ANY RE-USE. 3. THE CONTRACTOR SHALL NOT BE PERMITTED TO RE-USE ANY GEOTEXTILE FABRICS FOR SECONDARY APPLICATIONS.

Text

10' TYP.

Text

10' TYP.

Text

SPLASH APRON DETAIL N.T.S.

Text

FLOW

Text

SPILLWAY ELEVATION NOT TO EXCEED CENTERLINE OF PIPE

Text

1.5' MINIMUM

Text

SPLASH APRON 1.5' THICK

Text

SPLASH APRON (10' TYPICAL)

Text H

Text

Text 1'

Text

DRAINAGE PIPE

Text

TYPE 2 CHECKDAM (SEE DETAILS)

Text

SECTION VIEW

Text

FLOW

Text

DETENTION POND BAFFLES (SEE DETAILS)

Text

RIPRAP SPILLWAY WITH SPLASH APRON

Text L/4

Text

TEMPORARY BASINS & DETENTION PONDS N.T.S.

Text

CLASS I RIPRAP

Text

DETENTION POND BAFFLES

Text

SKIMMER

Text

SPILLWAY

Text

ELEVATION VIEW

Text

SKIMMER SETTLING PAD

Text

FLOW

Text

OUTLET PIPE (1% MIN.)

Text

PERSPECTIVE VIEW

Text NOTES : 1. TEMPORARY BASINS SHALL NOT EXCEED 5 FEET IN DEPTH UNLESS OTHERWISE NOTED ON THE PLANS OR PERMITTED BY THE AML PROJECT ENGINEER. 2. FLOCCULANT (PAM POWER) SHOULD BE APPLIED TO THE BAFFLES PRIOR TO EACH STORM EVENT WHEN FEASIBLE. ADDITIONAL APPLICATIONS MAY BE REQUIRED AT THE DISCRETION OF THE PROJECT MONITOR. 3. EXCESSIVE SEDIMENT BUILDUP MUST BE REMOVED PRIOR TO REACHING 1 FOOT IN HEIGHT OR WHEN DIRECTED BY THE PROJECT MONITOR.

Text

2.5:1 MIN.

Text

2.5:1 MIN.

Text

3:1 MIN.

Text

5' MAX

Text

5' MAX

Text

5' MAX

Text TWISTED ANCHOR WIRE 12 ga. MIN.

Text RING FASTENERS SPACE 1' o.c. ALONG TOP

Text

TRENCH & FIT TO SLOPE

Text

TRENCH & FIT TO SLOPE

Text

ELEVATION VIEW

Text

DETENTION POND BAFFLE DETAILS N.T.S.

Text 4'

Text

DOUBLE LAYER OF COIR BLANKET

Text

STEEL "T" POST

Text 12 ga. WIRE FENCE

Text

TYPICAL INSTALLATION

Text

2' MIN.

Text

FLOW

Text NOTES : 1. BAFFLE MATERIAL SHALL BE COMPOSED OF A DOUBLE LAYER OF 100% COCONUT FIBER (COIR), AND REIFORCED WITH 12 ga. WIRE FENCING 2. SPLICES SHALL HAVE A MINIMUM OVERLAP OF 2 FEET BETWEEN ADJACENT RUNS OF COIR MATERIAL AND SHALL NOT BE PERMITTED WITHIN 20 FEET OF ANOTHER SPLICE. 3. FLOCCULANT (PAM POWER) SHOULD BE APPLIED TO THE BAFFLES PRIOR TO EACH STORM EVENT WHEN FEASIBLE. ADDITIONAL APPLICATIONS MAY BE REQUIRED AT THE DISCRETION OF THE AML PROJECT MONITOR.

Text

GEOTEXTILE FABRIC

Text 12 ga. WIRE FENCING (WOVEN OR WELDED) WITH 4"x4" SQUARE OPENINGS

Text

DOUBLE LAYER OF COIR BLANKET

Text

BOTTOM OF POND

Text

REQUIRED 6" TRENCH

Text

STEEL "T" POST

Text 2'

Text 4'

Text 2'

Text

6" MIN.

Text

TRENCH WIDTH

Text

PIPE DIAMETER

Text

MINIMUM TRENCH WIDTH

Text

BEDDING DEPTH

Text 4"

Text 21"

Text 2"

Text 6"

Text 23"

Text 8"

Text 26"

Text 10"

Text 28"

Text 12"

Text 30"

Text 4"

Text 15"

Text 34"

Text 18"

Text 39"

Text 24"

Text 48"

Text 30"

Text 56"

Text 6"

Text 36"

Text 64"

Text 42"

Text 72"

Text 48"

Text 80"

Text 60"

Text 96"

Text

PIPE INSTALLATION DETAILS N.T.S.

Text

FINISHED GRADE

Text

BACKFILL MATERIAL (COMPACT IN 8" LIFTS)

Text STONE BACKFILL ALDOT No. 8910 (COMPACT IN 6" LIFTS)

Text

DEPTH VARIES (2' MINIMUM)

Text

PIPE DIAMETER

Text

BEDDING STONE (SEE TABLE)

Text NOTES : 1. BACKFILLING OPERATIONS SHALL BE POSTPONED UNTIL THE PROJECT MONITOR HAS INSPECTED AND APPROVED OF ALL PIPE JOINTS, INLET / OUTLET ELEVATIONS, AND THE CONSTRUCTION OF ANY REQUIRED ANTI-SEEP COLLARS. 2. ANY EXCAVATION, BACKFILL, OR COMPACTION ASSOCIATED WITH PIPE INSTALLATION SHALL BE INCLUDED AS PART OF THE PIPE ITEM. COMPACTION MUST BE ACCOMPLISHED USING A JUMPING JACK / RAMMER TAMP 3. THE CONTRACTOR MUST COMPLY WITH ALL OSHA GUIDELINES WHEN CONDUCTING ANY TRENCH EXCAVATIONS. TRENCH BOXES SHOULD BE USED FOR ANY DEPTHS GREATER THAN 5 FEET.

Text

DRAINAGE PIPE (SEE TABLE)

Text

1' MINIMUM

Text NOTES : 1. ALL REINFORCING STEEL SHALL BE No. 4 REBAR AND MUST HAVE A MINIMUM COVER OF 1.5 INCHES 2. ALL CONCRETE SHALL BE A STANDARD 3,000 psi MIX AND MUST BE ALLOWED TO CURE FOR 24 HOURS PRIOR TO BACKFILLING THE PIPE TRENCH. 3. ANTI-SEEP COLLARS SHOULD BE SPACED AT EQUAL DISTANCES ALONG THE PIPE, NOT TO EXCEED 30 FEET. SPACING REQUIREMENTS MAY BE ADJUSTED TO MAINTAIN A TWO FOOT OFFSET FROM ANY PIPE JOINTS. 4. PRE-FABRICATED STEEL COLLARS MAY BE USED IN LIEU OF POURED CONCRETE COLLARS WITH APPROVAL FROM THE AML PROJECT ENGINEER.

Text 'B'

Text 'C'

Text 'D'

Text 'A'

Text No. 4 STEEL BARS

Text 'A'

Text 3"

Text 'A'

Text 'B'

Text 'C'

Text

DRAINAGE PIPE (SEE TABLE)

Text

RIPRAP DITCH

Text

SECTION

Text A (ft.)

Text B (ft.)

Text C (ft.)

Text D (ft.)

Text F-F'

Text

Text 3.5

Text

SPILLWAY

Text G-G'

Text

Text 3.5

Text

RIPRAP DITCH OR SPILLWAY SECTION N.T.S.

Text

Text 'D'

Text 'B'

Text 'C'

Text 'A'

Text

NON-WOVEN FILTER FABRIC (MIRIFI 140-N OR EQUIVALENT)

Text 18"

Text

CLASS I / II RIPRAP

Text NOTES : 1. ALL GEO-TEXTILE UNDERLAYMENT MUST BE OVERLAPPED WITH THE UPSTREAM END EXTENDING A MINIMUM OF 1 FOOT OVERTOP OF THE DOWNSTREAM END. 2. FIELD CONDITIONS MAY REQUIRE THAT CONCRETE GROUT BE USED TO SECURE THE RIPRAP ALONG THE SPILLWAY. GROUTING OPERATIONS SHALL BE PERFORMED AT THE DISCRETION OF THE AML PROJECT ENGINEER.

Text 1'

Text

TAPER AS DIRECTED

Text 4'

Text 2'

Text

UPSTREAM TOE WALL

Text

N ON-WOVEN FILTER FABRIC (MIRIFI 140N OR EQUIVALENT)

Text

DOWNSTREAM TOE WALL

Text

DITCH SECTION

Text

SECTION

Text A (ft.)

Text B (ft.)

Text C (ft.)

Text E-E'

Text

GRASS DITCH SECTION N.T.S.

Text

Text 'B'

Text 'C'

Text 'A'

Text TURF REINFORCEMENT BLANKET (VMax C350 OR EQUIVALENT).

Text 1' Min.

Text NOTES : 1. SEE INSTALLATION DETAIL FOR TERRACE EROSION CONTROL BLANKET FOR STAKING PATTERN. 2. ALL GEO-TEXTILE UNDERLAYMENT MUST BE OVERLAPPED WITH THE UPSTREAM END EXTENDING A MINIMUM OF 1 FOOT OVERTOP OF THE DOWNSTREAM END.

Text

ANTI-SEEP COLLAR DETAILS N.T.S.

Text

ANTI-SEEP COLLAR DIMENSIONS

Text

PIPE DIAMETER

Text

'A' (COLLAR SIZE)

Text

'B' (BAR SPACING)

Text

'C' (DIAGONAL GAP)

Text

'D' (COVER)

Text

'E' (COLLAR THICKNESS)

Text

CONCRETE VOLUME

Text 18"

Text 42"

Text 9" o.c.

Text 0"

Text 3"

Text 6"

Text

0.20 CY

Text 24"

Text 48"

Text 11" o.c.

Text 0"

Text 2"

Text 6"

Text

0.24 CY

Text 30"

Text 54"

Text 12" o.c.

Text 6"

Text 3"

Text 6"

Text

0.29 CY

Text 36"

Text 60"

Text 9" o.c.

Text 9"

Text 3"

Text 6"

0.34 CY

Text

DRAWN BY: MTB

Text

SHEET NO.

Text

DATE: 06/05/2026

Text

ALABAMA DEPARTMENT OF WORKFORCE ABANDONED MINE LAND PROGRAM

Text

ROBBINS-KEY

Text

SEAL

Text

EROSION CONTROL DETAILS

Text

2' - 4' MAX

Text

Text 2 x HEIGHT

Text

CLASS I / II RIP RAP

Text

FLOW

Text

RIPRAP CHECK DAM DETAILS N.T.S.

Text

MATCH WIDTH OF DITCH OR SPILLWAY

Text

EXTEND STONE TO MAINTAIN ELEVATION

Text

2' - 4' MAX

Text

ALDOT #24 STONE (FOR TYPE 2 ONLY)

Text

NON-WOVEN FILTER FABRIC (MIRAFI 140N OR EQUIVALENT)

Text NOTES : 1. RIPRAP SALVAGED FROM PREVIOUSLY CONSTRUCTED CHECK DAMS SHALL BE REASONABLY CLEANED TO THE AML PROJECT MONITOR's SATISFACTION PRIOR TO ANY RE-USE. 2. THE CONTRACTOR SHALL NOT BE PERMITTED TO RE-USE ANY GEOTEXTILE FABRICS FOR SECONDARY APPLICATIONS. 3. EROSION CONTROL POWDER SHOULD BE APPLIED TO CHECKDAMS PRIOR TO EACH RAINFALL EVENT.

Text

ELEVATION VIEW

Text 1' Min.

Text

TYPE 1 CHECK DAM (FOR INTERMITTENT DITCH APPLICATIONS)

Text

TYPE 2 CHECK DAM (FOR DITCH / POND OUTFALL APPLICATIONS)

Text

RIPRAP SUMP DETAILS N.T.S.

Text NOTES : 1. ALL SUMP LOCATIONS MUST BE APPROVED BY THE PROJECT MONITOR PRIOR TO THEIR EXCAVATION. 2. THE CONTRACTOR SHALL BE REQUIRED TO PERIODICALLY CLEAN OUT / EXCAVATE EACH SUMP AS NEEDED OR WHEN DIRECTED BY THE AML PROJECT MONITOR. THE RIPRAP MATERIAL SHALL BE REASONABLY CLEANED OF SEDIMENT AND THEN RE-USED IN THE SUMP. 3. GEOTEXTILE UNDERLAYMENT SHALL NOT BE REQUIRED FOR ANY SUMPS.

Text 6" Min.

Text 1' Min.

Text 3'

Text D

Text

CLASS I / II RIP RAP

Text 1' Min.

Text

FLOW

Text 4'

Text

Text 2 x HEIGHT

Text

NON-WOVEN FILTER FABRIC (MIRAFI 140N OR EQUIVALENT)

Text

ALDOT #24 STONE (END AT SPILLWAY ELEVATION )

Text

NON-WOVEN FILTER FABRIC (MIRAFI 140N OR EQUIVALENT)

Text

CLASS I / II RIP RAP

Text

FLOW

Text

CLASS I / II RIP RAP

Text 1'

Text 3'

Text

END CHOKING STONE AT SPILLWAY ELEVATION (FOR TYPE 2 ONLY)

Text 6"

Text

CONTOUR EROSION CONTROL BLANKET (OPTIONAL)

Text

2' MINIMUM

Text

SLOPE INTERRUPTION DETAILS FOR WATTLES N.T.S.

Text

20" WATTLE

Text

CONTOUR EROSION CONTROL BLANKET (OPTIONAL)

Text

FLOW

Text

48" WOODEN STAKE (PENETRATE NETTING ONLY)

Text

16" MINIMUM

Text

2" TRENCH

Text

16" MINIMUM

Text

20" WATTLE

Text

48" WOODEN STAKE (PENETRATE NETTING ONLY)

Text

FLOW

Text

TYPICAL INSTALLATION

Text

TRENCH INSTALLATION (FOR UNCONSOLIDATED SOILS)

Text

16" MINIMUM

Text

48" WOODEN STAKE (PENETRATE NETTING ONLY)

Text

20" WATTLE

Text

ELEVATION VIEW

Text

CONTOUR EROSION CONTROL BLANKET (OPTIONAL)

Text

FLOW

Text

FLOW

Text

FLOW

Text

FLOW

Text

SPACE AS DIRECTED (10' TYPICAL)

Text REQUIRED WOODEN STAKES (SPACE 2' o.c.)

Text

20" WATTLE

Text

SILT FENCE INSTALLATION DETAILS N.T.S.

Text 2'

Text 1'

Text 3'

Text

5' POST

Text 3'

Text

10' TYPICAL

Text

10' TYPICAL

Text 6"

Text

STEEL "T" POST

Text 12 ga. WIRE FENCE

Text TRENCH (6" x 6") BACKFILLED WITH SOIL ON TOP OF GEOTEXTILE

Text

TYPICAL INSTALLATION

Text

2' MIN.

Text

2' MIN.

Text

TRENCH INSTALLATION (FOR UNCONSOLIDATED SOILS)

Text

FLOW

Text

FLOW

Text

EMBEDMENT DEPTH SEE INSTALLATION DETAILS

Text 12 ga. WIRE FENCING (WOVEN OR WELDED) WITH 4"x4" SQUARE OPENINGS

Text TWISTED ANCHOR WIRE 12 ga. MIN.

Text

STEEL "T" POST

Text

EXISTING GROUND

Text

MINIMUM 2' OVERLAP (USE 3-FASTENERS)

Text

1' OVERLAP

Text

SPLICE DETAIL

Text

STEEL "T" POST

Text

ELEVATION VIEW

Text 12 ga. WIRE FENCING

Text

GEOTEXTILE FABRIC (MIRIFI 140-NL OR EQUIVALENT)

Text 12 ga. WIRE FENCING

Text

GEOTEXTILE FABRIC (MIRIFI 140-NL OR EQUIVALENT)

Text NOTES : 1. ALL SILT FENCING MUST BE FULLY INSTALLED PRIOR TO THE MASS CLEARING OF THE SITE. 2. ALL FENCE POSTS MUST BE DRIVEN OR CUT TO A UNIFORM HEIGHT AS DIRECTED BY THE AML PROJECT MONITOR. ANY POSTS WHICH COULD NOT BE DRIVEN AT LEAST 2-FEET INTO THE GROUND MUST BE REINFORCED OR SUPPORTED AS NECESSARY. 3. THE CONTRACTOR SHALL BE REQUIRED TO IMMEDIATELY VEGETATE THE AREAS ADJACENT TO THE SILT FENCE IMMEDIATELY UPON COMPLETING ITS INSTALLATION. 4. ANY SILT FENCING PLACED ALONG FLAT OR LOW LYING AREAS SHOULD BE CONSTRUCTED IN A "SMILE CONFIGURATION" TO ASSIST WITH SEDIMENTATION OF THE RUNOFF. 5. ANY SEDIMENT BUILDUP ALONG THE TOE OF THE FENCE MUST BE PERIODICALLY REMOVED AND SHALL NOT BE PERMITTED IN EXCESS OF 18-INCHES.

Text

FLOW

Text

200' MAX

Text

"SMILE CONFIGURATION"

Text RING FASTENERS SPACE 1' o.c. ALONG TOP

Text

GEOTEXTILE FABRIC (REINFORCE WITH DOUBLE FOLD)

Text

STEEL "T" POST

Text 12 ga. WIRE FENCE

Text

GEOTEXTILE FABRIC (REINFORCE WITH DOUBLE FOLD)

Text

GEOTEXTILE FABRIC

Text

GEOTEXTILE FABRIC (MIRIFI 140-NL OR EQUIVALENT)

Text

8" MIN.

Text

FLOW

Text

FLOW

Text

FLOW

Text

FLOW

Text

TOP OF SLOPE

Text

BOTTOM OF SLOPE

Text

FLOW

Text

REQUIRED SILT FENCE

Text

DITCH APPLICATION OF WATTLES N.T.S.

Text 45°- 60°

Text

20" WATTLE

Text

48" WOODEN STAKE (PENETRATE NETTING ONLY)

Text

16" MINIMUM

Text

CONTOUR EROSION CONTROL BLANKET (OPTIONAL)

Text

TYPICAL INSTALLATION

Text

16" MINIMUM

Text 45°- 60°

Text

2" TRENCH

Text

20" WATTLE

Text

48" WOODEN STAKE (PENETRATE NETTING ONLY)

Text

TRENCH INSTALLATION (FOR UNCONSOLIDATED SOILS)

Text

CONTOUR EROSION CONTROL BLANKET (OPTIONAL)

Text 2'

Text

8' MINIMUM

Text

FLOW

Text

FLOW

Text REQUIRED WOODEN STAKES (SPACE 2' o.c.)

Text

20" WATTLE

Text

HEIGHT VARIES (3' - 5' TYPICAL)

Text

FLOW

Text

REQUIRED GEOTEXTILE FABRIC (MIRIFI 140-N OR EQUIVALENT)

Text

USE LOGS TO ANCHOR FABRIC

Text

TEMPORARY BRUSH BARRIERS N.T.S.

Text NOTES : 1. TEMPORARY BRUSH BARRIERS SHOULD BE USED AT THE CONTRACTOR's DISCRETION AND MUST BE WRAPPED IN A GEOTEXTILE FABRIC AS SHOWN ABOVE. 2. THE CONTRACTOR SHALL NOT BE PERMITTED TO RE-USE ANY GEOTEXTILE FABRICS FOR OTHER BMP's OR WHEN RELOCATING ANY TEMPORARY BRUSH BARRIERS. 3. PAYMENT / CONSTRUCTION OF ALL TEMPORARY BUSH BARRIERS SHOULD BE INCLUDED AS PART OF THE STORMWATER EROSION CONTROL MANAGEMENT ITEM. THIS SHALL INCLUDE THE COST OF ALL GEOTEXTILE FABRICS WHICH ARE REQUIRED FOR ITS CONSTRUCTION.

Text 6"

Text

DRAWN BY: MTB

Text

SHEET NO.

Text

DATE: 06/05/2026

Text

ALABAMA DEPARTMENT OF WORKFORCE ABANDONED MINE LAND PROGRAM

Text

ROBBINS-KEY

Text

SEAL

Text

EROSION CONTROL DETAILS

Text

Text 'A'

Text 'B'

Text 18" Min.

Text

DESIGN SLOPE (SEE PLAN SHEETS)

Text

DESIGN SLOPE (SEE PLAN SHEETS)

Text

TERRACE SLOPE (SEE TABLE)

Text 1'

Text

TERRACE SLOPE (SEE TABLE)

Text

EXCAVATED MATERIAL FROM TERRACE (SEE TABLE FOR AREA)

Text

TERRACE EROSION CONTROL BLANKET (SC-150 OR EQUIVALENT)

Text

TERRACE DETAILS N.T.S.

Text NOTES : 1. THE TERRACE BLANKET MUST BE OVERLAPPED WITH CONTOUR BLANKET BY A MINIMUM OF ONE (1) FOOT ALONG ITS UP-SLOPE EDGE. SPLICES & OVERLAPS MUST BE KEPT OUT OF THE FLOW LINE OF THE TERRACE. 2. ALL EXCAVATED MATERIAL SHALL BE COMPACTED TO THE SATISFACTION OF THE MONITOR. "FLAT BOTTOM" TERRACES ARE SHOWN FOR ILLUSTRATIONAL PURPOSES AND MAY BE ROUNDED OVER IN THE FIELD AS NEEDED.

Text

CONTOUR EROSION CONTROL BLANKET (SC-150 OR EQUIVALENT)

Text

REQUIRED 6" TRENCH

Text

TERRACE DIMENSIONS

Text

DESIGN SLOPE (H : V)

Text

'A' (EXCAVATION DEPTH)

Text

'B' (EXCAVATION WIDTH)

Text

'C' (TERRACE WIDTH)

Text

CROSS SECTIONAL EXCAVATION AREA

Text

TERRACE SLOPE (H : V)

Text 3 : 1

Text 35"

Text 53"

Text 66"

Text

0.57 SY

Text

1.5 :1

Text

3.5 : 1

Text 29"

Text 44"

Text 66"

Text

0.47 SY

Text 4 : 1

Text 33"

Text 66"

Text 84"

Text

0.65 SY

Text 2 :1

Text 5 : 1

Text 25"

Text 50"

Text 84"

Text

0.51 SY

Text

POINT OF SYMMETRY

Text 'C'

Text

TERRACE SLOPE (SEE TABLE)

Text

1' OVERLAP

Text

FLOW

Text

TERRACE EROSION CONTROL BLANKET (SC-150 OR EQUIVALENT)

Text NOTES : 1. ANY TERRACES WHICH DO NOT TERMINATE IN A RIPRAP DOWN DRAIN MUST BE STAKED AND SECURED WITH IN A 6" TERMINATION TRENCH SIMILAR TO THE UPSTREAM TERMINAL. 2. STAKES ALONG THE PERIMETER SHALL BE OFFSET 6" FROM THE EDGE OF BLANKET. OVERLAPS PERPENDICULAR TO THE DIRECTION OF FLOW SHALL BE STAKED AT 1' o.c. OVERLAPS PARALLEL TO THE DIRECTION OF FLOW SHALL BE STAKED AT 3' o.c. 3. ALL BLANKET INSTALLATION TRENCHES SHALL BE BACKFILLED AND COMPACTED TO THE DENSITY OF THE SURROUNDING SOIL.

Text

6" WOODEN STAKES

Text

6" WOODEN STAKE

Text 3'

Text 18"

Text

FLOW

Text

FLOW

Text 3'

Text

1' OVERLAP

Text

1' OVERLAP

Text SPACE 1' o.c. ALONG OVERLAPS PERPENDICULAR TO FLOW

Text SPACE 1' o.c. AT UPSTREAM TERMINAL

Text

1' OVERLAP

Text

TERRACE EROSION CONTROL BLANKET INSTALLATION DETAILS N.T.S.

Text

FLOW

Text

FLOW

Text

FLOW

Text

FLOW

Text

10' WING FROM DOWN DRAIN

Text

RIPRAP DOWN DRAIN

Text

FLOW

Text

FLOW

Text

FLOW

Text

FLOW

Text

THICKNESS VARIES (SEE DETAIL)

Text

REQUIRED 6" TRENCH

Text

REQUIRED 6" TRENCH (UPSTREAM TERMINAL)

Text

REQUIRED 6" TRENCH

Text

TERRACE EROSION CONTROL BLANKET (SC-150 OR EQUIVALENT)

Text

N ON-WOVEN FILTER FABRIC (MIRIFI 140N OR EQUIVALENT)

Text

CLASS I RIPRAP

Text

FLOW

Text

FLOW

Text

FLOW

Text

FLOW

Text

SPACING VARIES (SEE FINAL ECP PLAN)

Text

CONTOUR EROSION CONTROL BLANKET INSTALLATION DETAILS N.T.S.

Text

FLOW

Text

FLOW

Text 3'

Text 18"

Text

1' OVERLAP

Text

1' OVERLAP

Text SPACE 1' o.c. ALONG OVERLAPS PARRALELL TO FLOW

Text 6" WOODEN STAKES SPACE 1' o.c. AT TERMINAL ENDS

Text

FLOW

Text

REQUIRED 6" TRENCH

Text

CONTOUR EROSION CONTROL BLANKET (SC-150 OR EQUIVALENT)

Text

6" WOODEN STAKE

Text SPACE 1' o.c. ALONG TERMINAL ENDS

Text

SECTION VIEW X-X'

Text X

Text X'

Text NOTES : 1. CONTOUR BLANKET IS INTENDED FOR USE ON SLOPES WHICH DO NOT MEET THE CRITERIA FOR SLOPE BLANKET BUT ARE STEEPER THAN 4:1 (H:V). 2. ANY CONTOUR BLANKET INSTALLED AS AN UNDERLAYMENT FOR TEMPORARY EROSION CONTROL ITEMS CANNOT BE REUSED FOR PERMANENT STABILIZATION. 3. STAKES ALONG THE PERIMETER SHALL BE OFFSET 6" FROM THE EDGE OF BLANKET. OVERLAPS PARALLEL TO THE DIRECTION OF FLOW SHALL BE STAKED AT 1' o.c. 4. ALL BLANKET INSTALLATION TRENCHES SHALL BE BACKFILLED AND COMPACTED TO THE DENSITY OF THE SURROUNDING SOIL.

Text

REQUIRED 6" TRENCH

Text

REQUIRED 6" TRENCH

Text

FLOW

Text

FLOW

Text

SLOPE EROSION CONTROL BLANKET INSTALLATION DETAILS N.T.S.

Text

FLOW

Text

FLOW

Text

REQUIRED 6" TRENCH

Text

SECTION VIEW Y-Y'

Text NOTES : 1. SLOPE BLANKET SHOULD BE INSTALLED ALONG APPROVED SLOPES WHICH ARE STEEPER THAN 3:1 (H:V). THIS SHALL EXCLUDE THE BACK SLOPE OF ANY TERRACES. 2. STAKES ALONG THE PERIMETER SHALL BE OFFSET 6" FROM THE EDGE OF BLANKET. OVERLAPS PERPENDICULAR TO THE DIRECTION OF FLOW SHALL BE STAKED AT 1' o.c. OVERLAPS PARALLEL TO THE DIRECTION OF FLOW SHALL BE STAKED AT 3' o.c.. 3. ALL BLANKET INSTALLATION TRENCHES SHALL BE BACKFILLED AND COMPACTED TO THE DENSITY OF THE SURROUNDING SOIL.

Text

REQUIRED 6" TRENCH

Text

1' OVERLAP

Text 3'

Text 18"

Text 6" WOODEN STAKES SPACE 1' o.c. AT TERMINAL ENDS

Text SPACE 1' o.c. ALONG OVERLAPS PERPENDICULAR TO FLOW

Text

FLOW

Text

1' OVERLAP

Text STAGGER OVERLAPS (10' Min.) BETWEEN ADJACENT BLANKET

Text Y

Text Y'

Text

1' OVERLAP

Text

1' OVERLAP

Text

SLOPE EROSION CONTROL BLANKET (SC-150 OR EQUIVALENT)

Text

6" WOODEN STAKE

Text

1' OVERLAP

Text

1' OVERLAP

Text

FRENCH DRAIN DETAILS N.T.S.

Text NOTES : 1. FRENCH DRAIN LOCATIONS AND DIMENSIONS MUST BE APPROVED BY THE AML PROJECT MONITOR PRIOR TO INSTALLATION. 2. ANY EXCAVATION OR BACKFILL ASSOCIATED WITH CONSTRUCTING FRENCH DRAINS SHALL BE CONSIDERED PART OF THE UNCLASSIFIED EXCAVATION ITEM. COMPACTION SHALL BE REQUIRED TO THE SATISFACTION OF THE AML PROJECT MONITOR. 3. THE CONTRACTOR MUST COMPLY WITH ALL OSHA GUIDELINES WHEN CONDUCTING ANY TRENCH EXCAVATIONS. TRENCH BOXES SHOULD BE USED FOR ANY DEPTHS GREATER THAN 5 FEET.

Text

2' MINIMUM

Text

DEPTH VARIES (18" MINIMUM)

Text

2' MINIMUM

Text

FINISHED GRADE

Text

NON-WOVEN FILTER FABRIC (MIRIFI 140-N OR EQUIVALENT)

Text ALDOT No. 57 STONE

Text

1' OVERLAP

FLOW

Text

DRAWN BY: MTB

Text

SHEET NO.

Text

DATE: 06/05/2026

Text

ALABAMA DEPARTMENT OF WORKFORCE ABANDONED MINE LAND PROGRAM

Text

ROBBINS-KEY

Text

SEAL

Text

MISCELLANEOUS DETAILS

Text

Text 2.5' Min.

Text 5' Min. 7' Max.

Text 6' Min. 12' Max.

Text

EDGE OF ROADWAY

Text

SIGN "A"

Text N. T. S.

Text

TRUCKS ENTERING ROADWAY AHEAD

Text 36"

Text

SIGN "B"

Text N. T. S.

Text

CONSTRUCTION ENTRANCE 500 FT

Text 36"

Text NOTES : 1. ALL ADVANCED WARNING SIGNS SHALL BE INSTALLED IN ACCORDANCE WITH THE MUTCD (MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES). 2. SIGN 'A' SHALL BE INSTALLED 1,000 FT IN ADVANCE OF THE CONSTRUCTION ENTRANCE SIGN 'B' SHALL BE INSTALLED 500 FT IN ADVANCE OF THE CONSTRUCTION ENTRANCE 3. FIELD ADJUSTMENTS MAY BE REQUIRED WITH THE APPROVAL OF THE PROJECT MONITOR. NO SIGN SHALL BE INSTALLED CLOSER THAN 100 FEET OF ANY EXISTING ROADWAY SIGNS.

Text

REQUIRED STEEL POST (COMPACT AS DIRECTED)

Text

ADEM STORMWATER PERMIT IDENTIFICATION SIGN N.T.S.

Text

SIGN TEXT FACING TRAFFIC

Text NOTES : 1. THE PERMIT I.D. SIGN SHOULD BE INSTALLED NEAR THE CONSTRUCTION ENTRANCE AT A LOCATION DESIGNATED BY THE AML PROJECT MONITOR. 2. THE SIGN PANEL SHALL BE COMPRISED OF A WHITE SHEET OF PVC (3mm THICK) AND ATTACHED TO A 1/2" THICK SHEET OF TREATED PLYWOOD FOR REINFORCEMENT. 3. ALL TEXT SHALL BE IN BLACK BLOCK LETTERING UTILIZING ALL CAPITAL LETTERS AS SHOWN. ANY INFORMATION DENOTED *** SHALL BE COMPLETED BY THE CONTRACTOR PRIOR TO FABRICATION.

Text

STATE OF ALABAMA

Text

ROBBINS-KEY RECLAMATION PROJECT

Text

***CONTRACTOR'S NAME*** ***CONTRACTOR'S ADDRESS*** ***ADDRESS CONTINUED***

Text N.P.D.E.S. GENERAL PERMIT - ALG 890000 ADEM AUTHORIZATION No. ***ALG 89xxxx***

Text 1.5' Min.

Text 6.5'

Text 3'

Text 4" x 4" x 8' TREATED POSTS

Text CONTACT: ***NAME*** PHONE: ***(xxx) xxx-xxxx***

Text

DEPARTMENT OF WORKFORCE ABANDONED MINE LAND PROGRAM

Text

2" FONT

Text

1.5" FONT

Text

2" FONT

Text

1" FONT

Text

1" FONT

Text

1" FONT

Text

BRASS GROMMET WITH 3/8" LAG BOLT

Text 3'

Text 0.75"

Text 2"

Text 0.75"

Text 4"

Text 1"

Text 0.5"

Text 5"

Text 0.5"

Text 2"

Text 0.5"

Text 2"

Text 0.5"

Text 2"

Text

CONSTRUCTION SIGN DETAIL N.T.S.

Text

100' MINIMUM

Text

20' MIN.

Text

CONSTRUCTION EXIT PAD DETAIL N.T.S.

Text

NON-WOVEN FILTER FABRIC (MIRIFI 140N OR EQUIVALENT)

Text

ALDOT #24 STONE (6" THICK) (SEE NOTE 2)

Text

ACCESS ROAD DETAIL N.T.S.

Text

ACCESS ROAD

Text

TAPER (2' TYPICAL)

Text NOTES : 1. ACCESS ROADS SHOULD BE IMPROVED AS NECESSARY AND MAINTAINED FOR THE DURATION OF THE PROJECT. THE CONTRACTOR SHALL MATCH THE WIDTH OF THE EXISTING ROAD AND COMPACT THE MATERIAL USING RUBBER TIRE EQUIPMENT TO THE SATISFACTION OF THE AML PROJECT MONITOR. 2. GEOTEXTILE UNDERLAYMENT SHALL NOT BE REQUIRED FOR CONSTRUCTION OF THE ACCESS ROAD. ADDITIONAL APPLICATIONS OF STONE SHALL BE REQUIRED AT THE DISCRETION OF THE AML PROJECT MONITOR. 3. UPON COMPLETION OF THE PROJECT, THE CONTRACTOR SHALL OVERLAY THE ACCESS ROAD WITH 2" OF ALDOT #825-B STONE.

Text

APPLICATION FOR EXISTING GRAVEL ROADS

Text NOTES : 1. THE CONTRACTOR SHALL BE RESPONSIBLE FOR MAINTAINING ALL CONSTRUCTION EXIT PADS FOR THE DURATION OF THE PROJECT. ADDITIONAL APPLICATIONS OF STONE SHALL BE REQUIRED AT THE DISCRETION OF THE AML PROJECT MONITOR. 2. UPON COMPLETION OF THE PROJECT, THE CONTRACTOR SHALL OVERLAY THE EXIT PAD WITH 2" OF ALDOT # 57 STONE, AND THEN OVERLAY WITH AN ADDITIONAL 2" OF ALDOT #825-B STONE.

Text

EXISTING GRAVEL

Text

ALDOT #57 STONE (2" THICK) (SEE NOTE 3)

Text

ACCESS ROAD

Text

TAPER (2' TYPICAL)

Text

APPLICATION FOR DIRT ROADS

Text

ALDOT # 57 STONE (4" THICK) (SEE NOTE 3)

Text

SEE PLANS FOR LENGTH

Text

20' MIN.

Text

40' MIN.

Text

REQUIRED DRAINAGE PIPE (IF NEEDED) (18" MINIMUM)

Text

EXISTING ROADWAY

Text

ALDOT #57 STONE (SEE DETAILS TO THE LEFT FOR THICKNESS) (SEE NOTE 3)

Text

TIE-IN TO ACCESS ROAD (SEE ACCESS ROAD DETAIL FOR BUILD-UP)

File details come from the government source that posted it. Updated Sep 9, 2026.