Attachment1A_Sheets_MX01__MX02_Rev28Jun2024_0003.pdf

FLOOD

CHANNEL

BORROW AREA

10.7 ACRES

BORROW AREA

5 ACRES

BORROW AREA

11.0 ACRES

BORROW AREA

1.5 ACRES

DIRECTION

OF FLOW

MX-02

TIMBER

STOCKPILE

OVERBURDEN

STOCKPILE,TYP.

EXISTING

ACCESS

ROAD

OPERATION LIMITS1

MX-02

100' VEGETATION

BUFFER

100' VEGETATION

BUFFER

100' VEGETATION

BUFFER

100' VEGETATION

BUFFER

100' VEGETATION

BUFFER

ARCHAEOLOGICAL

ARTIFACT STORAGE

IMPROVED OUTLET

CHANNEL (TYP.)

POINT TABLE

POINT #

NORTHING

4143702.43

4143891.43

4143891.00

4142673.37

4142596.79

4142764.96

EASTING

1510423.02

1510662.69

1514068.52

1514462.32

1512820.16

1512525.08

DESCRIPTION

N CREEK TERMINATION

NW COR

NE COR

SE COR

SW COR

S CREEK TERMINATION

6/27/2024 11:37 AM MX-01.DWG

902104

23 FEB 2024

COMM. NUMBER

ISSUE DATE

DESIGNED BY

DRAWN BY

1"0" SCALE

601 College Road Fairbanks AK 99701 907.452.1241

Architects SurveyorsEngineers

AECC511 designalaska.com

NOME CREEK

ROAD REPAIR

REGISTERED PROFESSIONA L ENGINEER

D E S I G N A

L A

S K

A

Charles Cutter Degerlund

No. CE124811 27-Jun-2024

MX-01

CBP

CCD

BORROW SITE

MINING &

RECLAMATION

PLAN

GENERAL NOTES

1. SEE PLAN LAYOUT KEY (A-002) FOR BORROW SITE LOCATION. DETAILS OF THIS PLAN ARE APPROXIMATE. MINING OPERATIONS ARE

EXPECTED TO PRODUCE APPROXIMATELY 200,000 CY OF GRAVEL. AREAS DENOTED AS BORROW AREAS ARE ANTICIPATED TO HAVE

THE HIGHEST MATERIAL YIELDS. MINING MAY OCCUR WITHIN THE OPERATION BOUNDARY TO REACH THE MATERIAL QUOTA. NOME

CREEK IS A NON ANADROMOUS STREAM AND SHALL BE PROTECTED THROUGHOUT MINING OPERATIONS.

2. MINING PIT OPERATIONS SHALL BE OPENED IN PHASES. ONE CONTINUOUS BORROW AREA MAY BE DEVELOPED AT A TIME.

CONCURRENT RECLAMATION OF EXHAUSTED BORROW SITES AND ALL OTHER DISTURBED SURROUNDING AREAS SHALL OCCUR WHILE

MINING OPERATIONS BEGIN ELSEWHERE.

3. ACCESS TO MATERIAL SITES SHALL BE PER CONTRACTOR MEANS AND METHODS WITHIN THE LIMITATIONS DESCRIBED HERE. ALL

ACCESS DRIVES SHALL BE RECLAIMED AFTER PROJECT COMPLETION. WHERE POSSIBLE, CONSTRUCT TEMPORARY ROADS OVER

INTACT ORGANIC LAYER AND MAINTAIN ORGANIC LAYER DURING RECLAMATION.

4. NATURAL DRAINAGE PATTERNS SHALL BE MAINTAINED TO THE EXTENT PRACTICABLE BY THE INSTALLATION OF CULVERTS IN

SUFFICIENT NUMBER AND SIZE UNDER ACCESS ROADS AND TRAILS TO PREVENT PONDING, DIVERSION, OR CONCENTRATED RUNOFF

THAT WOULD RESULT IN ADVERSE IMPACTS TO ADJACENT WETLANDS AND OTHER FISH AND WILDLIFE HABITATS.

5. NO FILL, EQUIPMENT OR CONSTRUCTION MATERIALS SHALL BE STOCKPILED OR STORED ON WETLANDS THAT DO NOT HAVE

AUTHORIZATION FOR THOSE ACTIVITIES.

6. ALL DISTURBED, STOCKPILE, AND FILL AREAS SHALL BE STABILIZED TO PREVENT EROSION. INCREASED WATER TURBIDITY AND

ACCUMULATION OF SEDIMENT IN DRAINAGES, SLOUGHS, AND OTHER WETLANDS SHALL BE EVIDENCE OF INSUFFICIENT STABILIZATION.

7. TO THE MAXIMUM EXTENT PRACTICABLE, PLASTIC-FREE EROSION AND SEDIMENT CONTROL PRODUCTS SUCH AS NETTING

MANUFACTURED FROM 100-PERCENT BIODEGRADABLE MATERIALS LIKE JUTE, SISAL, OR COIR FIBER SHALL BE USED FOR EROSION

CONTROL.

8. BEST MANAGEMENT PRACTICES FOR PREVENTING THE INTRODUCTION OF INVASIVE WEEDS SHALL BE IMPLEMENTED, SUCH AS

THOROUGHLY WASHING EQUIPMENT BEFORE ONSITE DEPLOYMENT.

9. SEASONAL SHUTDOWN PROCEDURES OF PIT OPERATIONS SHALL ENSURE THAT MATERIAL STOCKPILES ARE PROTECTED FROM

EROSION AND STABILIZED UNTIL THE CONTINUATION OF PIT OPERATIONS. STOCKPILED MATERIAL AS A RESULT OF MINING

OPERATIONS SHALL NOT ENCROACH UPON THE NOME CREEK VEGETATION BUFFER. MATERIAL STOCKPILES LEFT OVER WINTER

SHUT-DOWN PERIOD MUST BE STORED ABOVE EXTENT OF REGULAR AUFEIS BUILDUP.

10. A 100-FOOT VEGETATION BUFFER FROM THE ORDINARY HIGH WATER MARK OF NOME CREEK SHALL REMAIN UNDISTURBED EXCEPT

FOR TEMPORARY ACCESS ROAD CLEARING AS NEEDED TO REACH THE BORROW SITES.

11. THE OPERATOR IS RESPONSIBLE FOR THE ACCURATE LOCATION OF OPERATIONS AND ANY SURVEY THAT MAY BE REQUIRED.

12. ANY ANTIQUITIES OR OTHER ITEMS OF CULTURAL OR HISTORIC VALUE FOUND AS A RESULT OF MINING OPERATIONS SHALL BE

REPORTED TO THE BUREAU OF LAND MANAGEMENT AUTHORIZED OFFICER.

13. STREAM CROSSINGS LOCATIONS SHALL BE DETERMINED BY BORROW PIT OPERATOR AND USE A TEMPORARY BRIDGE SYSTEM TO

MINIMIZE STREAM DISTURBANCE.

14. STRIP AND STOCKPILE OVERBURDEN TO DEPTH OF GRAVEL. BORROW TO BEDROCK. THE CONTRACTOR SHALL NOT BORROW FROM

WITHIN 100' OF NOME CREEK ORDINARY HIGH WATER MARK.

15. CLEARING LIMITS SHALL BE CURVILINEAR WITH ROUNDED CORNERS AND TANGENTS NOT GREATER THAN 200'.

16. TIMBER WITH A DIAMETER OF 6" OR GREATER RESULTING FROM CLEARING OPERATIONS SHALL BE STORED IN AN APPROVED LOCATION

AWAY FROM NOME CREEK AND OUTSIDE OF THE VEGETATION BUFFER OR HAULED OFF SITE FOR SALE OR STORAGE.

17. OVERBURDEN SHALL BE STORED IN A BERM ON THE UPSTREAM SECTION OF THE BORROW SITE TO PREVENT STREAM FLOW FROM

ENTERING THE BORROW SITE. BERM PILES SHALL BE CONSTRUCTED TO FORM A LEVEE WITH A MAXIMUM SLOPE OF 1:1. WASTE PILES

SHALL BE MAXIMUM 15' HIGH, FREE OF PROTRUDING STUMPS AND DEBRIS.

18. ORGANICS SHALL BE PUSHED TO THE EDGE OF THE BORROW PIT AND SEPARATED FROM OVERBURDEN STOCKPILES FOR

RECLAMATION.

19. EXCAVATED AREAS SHALL BE LEFT IN SMOOTH CONDITION, VOID OF HOLES, DITCHES, TRENCHES, PILES, ETC.

20. MINE SUFFICIENT GRAVEL MATERIAL FOR PROJECT PLUS A 10,000 CY CONTINGENCY. UPON PROJECT COMPLETION, SPREAD EXCESS

AGGREGATE OVER MATERIAL SITE CIRCULATION AND STAGING AREAS AS PART OF PIT RECLAMATION. FINAL EXTENTS AND DEPTH OF

CRUSHED AGGREGATE SHALL BE AS DIRECTED BY BLM PER APPROVED FINAL RECLAMATION PLAN.

21. WHEN BORROW OPERATIONS ARE COMPLETE, EXCAVATED AREAS SHALL BE RESHAPED TO MATCH THE NATURAL TOPOGRAPHY. ALL

CUTS SHALL BE 3:1 MAXIMUM SLOPE. OVERBURDEN PILES CONTAINING TOPSOIL SHALL BE SPREAD OVER EXCAVATION LIMITS AND

PREPARED FOR RECLAMATION. SEE MX-02.

22. THE CONTRACTOR SHALL BE RESPONSIBLE FOR UPGRADING AND MAINTAINING ACCESS TO THE BORROW SITE AS NECESSARY TO

COMPLETE THE WORK. AFTER BORROW OPERATION IS COMPLETE, TEMPORARY STRUCTURES SHALL BE REMOVED FROM THE SITE

AND DISTURBED BORROW AREAS AND ALL SURROUNDING DISTURBED AREA SHALL BE RECLAIMED.

23. ACCESS IMPROVEMENTS TO THE BORROW AREAS SHALL NOT BE OF GREATER WIDTH OR EMBANKMENT HEIGHT THAN THE MINIMUM

NECESSARY TO SUPPORT MINING OPERATIONS AND SHALL MINIMIZE DISTURBANCE WHERE POSSIBLE.

24. SIGNIFICANT VEGETATION CLEARING SHALL FOLLOW AK-FWS GUIDELINES AND BE CONDUCTED OUTSIDE OF THE MAY 1 TO JULY 15

PERIOD OF MIGRATORY BIRD NESTING. SMALL AREAS OF VEGETATION, SUCH AS SOURCE AREAS FOR TRANSPLANTS , MAY BE

CLEARED WITHIN NESTING SEASON BY CONDUCTING PRE-DISTURBANCE NEST SURVEYS.

Feet 1:1800

3001500 75

STREAM CROSSING NOTES

1. A TEMPORARY BRIDGE SYSTEM MAY BE USED AT STREAM CROSSINGS.

2. CONTRACTOR IS RESPONSIBLE FOR THE SELECTION, DESIGN, INSTALLATION, INSPECTION, MAINTENANCE, AND REMOVAL OF

TEMPORARY BRIDGE AND APPURTENANCES.

3. BRIDGE ABUTMENTS MAY BE LOCATED WITHIN THE ORDINARY HIGH WATER MARK OF NOME CREEK.

4. DRIVING PILINGS FOR ABUTMENTS AND PIERS WITHIN THE STREAM BED IS ACCEPTABLE. ALL STRUCTURAL ELEMENTS MUST BE

REMOVED PRIOR TO COMPLETION OF THE PROJECT.

5. DISTURBANCE AND PLACED FILL WITHIN THE NOME CREEK 100-FOOT VEGETATION BUFFER SHALL BE THE MINIMUM REQUIRED FOR

BRIDGE INSTALLATION AND DECONSTRUCTION.

6. BRIDGE MUST BE DECONSTRUCTED AND REMOVED FROM THE SITE AT PROJECT COMPLETION, BUT SHALL IN NO CASE REMAIN IN

PLACE LONGER THAN 3 YEARS.

28 JUNE 2024 USFWS REVISIONS

EXISTING GRADE

OVERBURDEN PILE

DURING MINING

OPERATIONS

MAX 1:1 SLOPE

MAX. 15' HEIGHT

100' BUFFER FROM ORDINARY

HIGH WATER MARK NOME

CREEK

ORGANICS PILE

VAR

IES

SEE EXC

AVATIO

N N

O

TES

ESTIMATED WATER TABLE DEPTH

FINAL SLOPES

3:1

ORDINARY HIGH WATER MARK

BEDROCK DEPTH

LITTORAL ZONE

20' MIN, AVERAGE SLOPE LESS THAN 10H:1V

SPREAD 2"-4" THICK

SALVAGED ORGANIC

OVERBURDEN

6/27/2024 11:42 AM MX-02.DWG

902104

23 FEB 2024

COMM. NUMBER

ISSUE DATE

DESIGNED BY

DRAWN BY

1"0" SCALE

601 College Road Fairbanks AK 99701 907.452.1241

Architects SurveyorsEngineers

AECC511 designalaska.com

NOME CREEK

ROAD REPAIR

REGISTERED PROFESSIONA L ENGINEER

D E S I G N A

L A

S K

A

Charles Cutter Degerlund

No. CE124811 27-Jun-2024

MX-02

CBP

CCD

BORROW SITE

MINING &

RECLAMATION

PLAN DETAILS

TYPICAL CROSS SECTION1

MX-02 NO SCALE

EXCAVATION NOTES

1. DEPTH OF OVERBURDEN IS ANTICIPATED 1.5 TO 3 FEET FROM THE SURFACE. DEPTH TO BEDROCK

IS ANTICIPATED TO BE 10 TO 12 FEET FROM THE SURFACE PER THE WHITE MOUNTAINS

RECREATION AREA BORROW SITES EXPLORATION GEOTECHNICAL REPORT FINDINGS.

RECLAMATION NOTES

1. AREAS OF CLEARING AND EXCAVATION SHALL BE RESHAPED TO BLEND WITH THE SURROUNDING TOPOGRAPHY AND BE STABILIZED

BY TRACK-WALKING. STOCKPILED TOPSOIL AND OVERBURDEN SHALL BE SPREAD OVER THE MINING SITE TO PROMOTE PLANT

GROWTH. STOCKPILED ORGANICS SHALL BE SPREAD OVERTOP.

2. TEMPORARY ACCESS ROAD RECLAMATION SHALL BE LIMITED TO REMOVING SALVAGEABLE GRAVEL, SPREADING REMAINING

EMBANKMENT, AND HYDROSEEDING AREAS DISTURBED BY TEMPORARY ROAD CONSTRUCTION. EXCAVATION AND CUT CONDITIONS

ARE TO BE AVOIDED TO THE GREATEST EXTENT POSSIBLE.

3. SOILS IN RECLAIMED AREAS SHALL BE IN A CONDITION TO SUPPORT APPROXIMATELY 70% NATIVE PLANT COVER WITH

SELF-SUSTAINING UPWARD TREND IN NATIVE PLANT GROWTH IN TWO GROWING SEASONS. NON-NATIVE PLANT COVER SHALL NOT

BE GREATER THAN THE PRE-MINING CONDITIONS OR OF THE SURROUNDING AREA.

4. ALTERNATIVE WILDLIFE HABITAT FEATURES MAY BE USED TO LOWER VEGETATIVE CRITERIA WHERE APPROVED BY THE BUREAU OF

LAND MANAGEMENT.

5. IF MINING OPERATIONS CAUSE THE STREAM CHANNEL TO BECOME UNSTABLE, IT SHALL BE REESTABLISHED IN A STABLE LOCATION

WITHIN THE FLOODPLAIN.

6. WHERE THE STREAM BANK HAS BEEN DISTURBED BY MINING OPERATIONS OR BORROW PIT ACCESS, THE STREAM BANK SHALL BE

RESTORED TO FUNCTIONAL RANGE PER BUREAU OF LAND MANAGEMENT.

7. TEMPORARY ELEMENTS THAT ARE ABANDONED SHALL BE RECLAIMED WITH MEASURES NECESSARY TO PREVENT EROSION.

OUTLET CHANNEL NOTES

1. UPON COMPLETION OF MINING ACTIVITIES, AND DURING RECLAMATION, CONSTRUCT CONTINUOUS OPEN-WATER ACCESS BETWEEN

THE FLOODED PITS AND STREAM SYSTEM THROUGH PERMANENT OUTLET CHANNELS.

2. INCORPORATE EXISTING DRAINAGE CHANNELS AS OUTLET CHANNELS TO THE MAXIMUM EXTENT POSSIBLE.

3. ALL OUTLET CHANNELS SHALL BE ON THE PIT'S DOWNSTREAM SIDE TO PREVENT PREMATURE DEGRADATION OF THE STREAM

CHANNEL AND PIT.

4. OUTLET CHANNELS SHALL BE DEEP ENOUGH TO ALLOW FISH PASSAGE DURING LOW-FLOW CONDITIONS.

5. OUTLET CHANNELS SHALL BE CONNECTED TO A NON-DEPOSITIONAL AREA OF THE ACTIVE CHANNEL AND BE ANGLED DOWNSTREAM.

IDEAL NON-DEPOSITIONAL AREAS ARE TYPICALLY LOCATED AT THE DOWNSTREAM END OF A GRAVEL BAR, JUST UPSTREAM OF

WHERE THE SHORELINE CONDITION TRANSITIONS TO A CUT BANK.

6. OUTLET CHANNELS SHALL INCORPORATE SPECIFIC DESIGN MEASURES THAT MINIMIZE LONG-TERM SEDIMENTATION AND MAINTENANCE INCLUDING ARMORING THE CHANNEL WITH COBBLE REJECTED FROM THE MATERIAL PIT.

7. OUTLET CHANNELS SHALL NOT BE IN A STRAIGHT-LINE CONFIGURATION, BUT SHALL FOLLOW THE NATURAL DRAINAGE PATH.

8. OUTLET CHANNELS SHOULD BE CONSTRUCTED TO MINIMIZE RIVER SILTATION.

9. WHERE EXISTING CHANNELS ARE UTILIZED, A "SOFT PLUG" OF UN-COMPACTED SOIL SHOULD BE INSTALLED DURING ACTUAL

GRAVEL EXTRACTION ACTIVITIES TO ISOLATE THE SITE FROM THE RIVER. REMOVE THE "SOFT PLUG" DURING RECLAMATION.

10. COMPLETE CONSTRUCTION/CONNECTION OF OUTLET CHANNEL FROM BORROW PIT TO STREAM AFTER GRAVEL MINING IS

COMPLETE.

LITTORAL ZONE NOTES

1. CONSTRUCT LITTORAL ZONES WHERE OPEN WATER IS CREATED BY EXTRACTING GRAVEL FROM THE MATERIAL SITE.

2. LITTORAL ZONES SHALL EXTEND FROM THE ORDINARY HIGH WATER LINE OR THE LIMIT OF DISTURBANCE, WHICHEVER IS LESS, TO

LEAST 20-FEET BEYOND THE LOW WATER LINE, FORMING A SHALLOW-WATER AREA WITH SLOPES AVERAGING LESS THAN 10H:1V

ALONG THE LENGTH OF THE SHORELINE.

3. THE PERIMETER OF THE EXCAVATION SHALL BE CONSTRUCTED TO CREATE AN IRREGULAR SHORELINE WITH PENINSULAS, ISLANDS, AND SPITS TO THE GREATEST EXTENT PRACTICAL.

4. SALVAGED ORGANIC OVERBURDEN 2-4 INCHES DEEP SHALL BE PLACED ON THE SHALLOW (LITTORAL) SHELF AND SHORELINE TO

ENHANCE REVEGETATION.

1 28 JUNE 2024 USFWS REVISIONS