a7 attach3 Naha trail log.pdf

PROJECT NAME: NAHA TRAIL RECONSTRUCTION PHASE 1

CONSTRUCTION LOG

KEY TO WORK ITEMS:

ABBREV. DESCRIPTION

ASD AGGREGATE SURFACING WITH DITCH

AS AGGREGATE SURFACING

CRS CUT ROCK STEP

LRS LOG RISER STEP

CUL CULVERT

NW NO WORK

GENERAL NOTES

1). The beginning of work areas are marked on the ground by wood stakes with the work area number written upon them. Leave all stakes in place until such time that the work is accepted by the Government.

Should a stake be missing, notify the Government for replacement prior to the commencement of work in that area.

2). The work areas value shown is approximate feet from the beginning of the project or as referenced.

3). The Minimum Aggregate Surfacing Depth shown is the depth after placement and light compaction.

4). The quantities of steps/stones shown for Types LRS/CRS are estimates given for the contractors convenience only. The actual quantities may vary and the contractor is responsible for verifying the actual quantities.

WORK

AREA

BEGIN

DIST. AHEAD QUAN.

WORK

AREA

END

WORK ITEMS

MIN. AGGR.

SURFACING

DEPTH

(INCHES)

FINISHED

TRAIL

SURFACE

MIN. WIDTH

(INCHES)

ESTIMATED

C.Y. AGGR.

SURFACING

NOTES

0+00 80 6 0+80 AS, LRS 4" 30" 2.5 Grub, Gravel to grade, Include up to 6 steps to maintain grade, Cut into slope at 0+80

0+80 84 1+64 AS 4" 30" 2.5 Grub, Gravel to grade

1+64 30 6 1+94 CRS 4" 30" Cut RS out of existing large rock step up to 6 steps and continue with grade, add gravel where needed

1+94 113 3+07 AS 4" 30" 3.5 Grub, Gravel to grade

3+07 132 4+39 DEMO, AS 10" 30" 10.5 Remove boardwalk, Grub, Gravel to grade

4+39 28 4 4+67 AS, LRS, 4" 30" 1.0 Grub, Include up to 4 steps to maintain grade, Gravel to grade

4+67 105 6 5+72 ASD, LRS, CUL 6" 30" 5.0 Remove board walk steps and railing, build up to 6 LRS, Ditch for drainage, Gravel, 12" Culvert at 5+72

5+72 1397 19+92 NW

19+92 12 20+04 AS 4" 30" 0.5 Grub, Gravel to grade

20+04 24 20+28 DEMO, AS 4" 30" 0.5 Remove boardwalk. Grub, Gravel to grade

20+28 31 20+59 AS 4" 30" 1.0 Grub, Gravel to grade

20+59 30 20+89 DEMO, AS 4" 30" 1.0 Remove boardwalk, Grub, Gravel to grade

20+89 70 21+59 AS 4" 30" 2.0 Grub, Gravel to grade

21+59 39 21+98 DEMO, AS 4" 30" 1.0 Remove boardwalk, Grub, Gravel to grade

21+98 73 22+71 AS 4" 30" 2.5 Grub, Gravel to grade

22+71 33 23+04 DEMO, AS 4" 30" 1.0 Remove boardwalk, Grub, Gravel to grade

23+04 30 23+34 NW

23+34 228 25+52 DEMO. AS 4" 30" 7.0 Remove Boardwalk, Grub, Gravel to grade

WORK

AREA

BEGIN

DIST. AHEAD QUAN.

WORK

AREA

END

WORK ITEMS

MIN. AGGR.

SURFACING

DEPTH

(INCHES)

FINISHED

TRAIL

SURFACE

MIN. WIDTH

(INCHES)

ESTIMATED

C.Y. AGGR.

SURFACING

NOTES

25+52 47 25+99 AS 4" 30" 1.5 Grub, Gravel to grade

25+99 27 26+26 DEMO, AS 4" 30" 1.0 Remove boardwalk, Grub, Gravel to grade

26+26 43 26+69 DEMO, AS-Bench 4" 30" 2.0 Remove boardwalk, Grub, Gravel to grade (bench into sideslope)

26+69 24 26+93 DEMO. LRS 6" 30" 2.0 Remove existing staircase, Grub, Gravel to grade, Include up to 8 steps to maintain grade

SPUR

0+00 45 0+45 AS 4" 30" 1.5 Grub, Gravel to grade

0+45 21 0+66 AS, LRS 4" 30" 1.0 Grub, Gravel to grade, (Remove hump or install up to 6 steps)

0+66 39 1+05 AS 4" 30" 1.5 Grub, Gravel to grade

1+05 37 1+42 AS, Tree 4" 30" 1.5 Grub Gravel to grade, Hazard tree removal @ 1+05

1+42 58 2+00 AS 4" 30" 2.0 Grub, Gravel to grade, Remove roots

RE-RTE

0+00 21 0+21 AS 6" 30" 1.0 Re route away from root wad blocked trail, Grub,Clear, Gravel to grade

0+21 20 0+41 AS 6" 30" 1.0 Grub,Clear, Gravel to grade

0+41 23 0+64 AS 6" 30" 1.0 Grub,Clear, Gravel to grade, Tie into existing trail

OPT 1

23+04 30 23+34 DEMO, Bridge Remove Bridge-incules aprox: 4' elevated boardwalk on each side, install new timber bridge, blend aproaches into trail

Trail Log