J-1.Exhibits_Road_3478UF.pdf

ROAD RECONTOUR

NO SCALE

BEFORE RECONTOUR

SCATTER CLEARING SLASH ON FINISHED SLOPE. SLASH

CAN BE ANCHORED IN PLACE BY PARTIALLY BURYING TO

A MAXIMUM DEPTH OF 12".

EXCAVATE AND EMBANK ROAD FILL IN THE

REVERSE ORDER OF ROAD CONSTRUCTION.

PLACE THE MOST PRODUCTIVE SOIL ON THE

SURFACE OF THE RESTORED HILLSLOPE.

AFTER RECONTOUR

IDAHO PANHANDLE NATIONAL FORESTS

St. JOE RANGER DISTRICT

ROAD DECOMMISSIONING PAGE 3 OF 9

IDAHO PANHANDLE NATIONAL FORESTS

ROAD RECONTOUR

ROAD DECOMMISSIONING PAGE 4 OF 9

STREAM CHANNEL RESTORATION

EXCAVATION AREA

ROAD SURFACE

CONTOUR SIDE SLOPES TO MATCH

UNDISTURBED SIDE SLOPES UPSTREAM

AND DOWNSTREAM OF THE CHANNEL SITE.

RESTORE THE STREAM

CHANNEL TO MATCH THE

SAME WIDTH, DEPTH, AND

SLOPE AS THE STREAM

CHANNEL ABOVE THE

CHANNEL SITE.

ARMOR ROCK

IDAHO PANHANDLE NATIONAL FORESTS

St. JOE RANGER DISTRICT

ROAD DECOMMISSIONING

REMOVE DRAINAGE

STRUCTURE

ROAD SURFACE

STREAM CHANNEL RESTORATION

IDAHO PANHANDLE NATIONAL FORESTS

ROAD DECOMMISSIONING PAGE 6 OF 9

GRADIENT CONTROL

ROCK SIZE

A = LONGEST AXIS (LENGTH)

MINIMUM LENGTH= 16 INCHES.

B = INTERMEDIATE AXIS (WIDTH)

MINIMUM WIDTH= 16 INCHES.

C = SHORTEST AXIS (THICKNESS)

MINIMUM THICKNESS= 16 INCHES.

ARMOR ROCK

PERSPECTIVE VIEW

CROSS SECTION VIEW

CONSTRUCTION NOTES:

1. INSTALL GRADIENT CONTROL STRUCTURES IN THE RESTORED STREAM CHANNEL TO MATCH

GRADIENT BREAKS IN THE UNDISTURBED STREAM CHANNEL UPSTREAM OF THE CHANNEL SITE. LOGS, ROCK OR ROOTWADS CAN BE USED FOR GRADIENT CONTROL. INSTALL ROCKS AND ROOTWADS IN A

SLIGHTLY CONVEX SHAPE. LOGS SHALL HAVE A MINIMUM 10" SMALL END DIAMETER UNLESS OTHERWISE

APPROVED BY THE CONTRACTING OFFICER. ROCK SHALL MEET THE MINIMUM SIZE SHOWN ON THE

DRAWINGS AND BE DURABLE SO THAT IT REMAINS WHOLE AFTER INSTALLATION. ROCK CAN BE

CONSERVED FROM ADJACENT EXCAVATION. REMOVE ROOTWADS FROM A MINIMUM DIAMETER BREAST

HEIGHT (DBH) 16" TREE AND USE AS GRADIENT CONTROL.

2. ROCK CONSERVED FROM EXCAVATION CAN BE USED TO ARMOR THE STREAMBED. ARMOR ROCK

SIZE SHOULD MATCH THE THE DIMENSIONS OF THE ROCK IN THE ADJACENT UNDISTURBED CHANNEL.

3. INSTALL GRADIENT CONTROL STRUCTURES PERPENDICULAR TO STREAM FLOW WITH THE EXCEPTION

OF THE ROCK/LOG STRUCTURE.

4. KEY GRADIENT CONTROL STRUCTURES A MINIMUM OF 4" BELOW ORIGINAL STREAM GRADE AND BURY

HORIZONTALLY A MINIMUM OF 6 FEET INTO EACH STREAM BANK.

5. DITCH RELIEF CULVERTS DO NOT REQUIRE GRADIENT CONTROL STRUCTURES UNLESS THEY ARE IN A

NATURAL CHANNEL.

6. USE TREES AND LOGS STORED DURING THE CLEARING OPERATION AS HABITAT LOGS. INSTALL A

MINIMUM OF 6 LOGS WITH A MINIMUM LARGE END DIAMETER OF 10" AND A MINIMUM LENGTH OF 20'.

INSTALL HABITAT LOGS SO THEY CROSS THE STREAM CHANNEL AND PROVIDE SHADE AND COVER.

IDAHO PANHANDLE NATIONAL FORESTS

ROAD DECOMMISSIONING PAGE 7 OF 9

IDAHO PANHANDLE NATIONAL FORESTS

DECOMPACTION

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EMBANK MATERIAL

CONSTRUCTION NOTES:

WATER BAR

NO SCALE

3' -6'

EXCAVATE MATERIAL

3' -6'

WATERBAR SPACING

ROAD GRADE (%) DISTANCE (FT.)

0-3.9 500

4-5.9 250

6-9.9 150

> 10 100

1. CONSERVE 6" - 18" ROCK ENCOUNTERED IN EXCAVATION AND PLACE AT THE OUTLET OF THE WATER

BAR TO ACT AS AN ENERGY DISSIPATOR, IF PRESENT.

2. SKEW WATER BAR 30

- 60

FROM ROAD CENTERLINE AND SLOPE THE DITCH FROM CUT BANK TO FILL

SLOPE TO FACILITATE DRAINAGE OF WATER OFF THE ROAD.

3. INTERCEPT DITCH WATER BY INCLUDING A DITCH BLOCK DURING CONSTRUCTION OF WATER BAR.

IDAHO PANHANDLE NATIONAL FORESTS

ROAD DECOMMISSIONING PAGE 9 OF 9