Eagle_Knob_drainage_Plans_REVISED.pdf

U.S. DEPARTMENT OF AGRICULTURE

FOREST SERVICE

GEORGE WASHINGTON-JEFFERSON NATIONAL FOREST

CLINCH RANGER DISTRICT

PLANS

DRAINAGE STRUCTURE MAINTENANCE & RESURFACING

on

EAGLE KNOB ROAD #238

and

RESURFACING

on

HIGH KNOB TOWER ROAD, #238A

FOREST ENGINEER Date

DISTRICT RANGER Date

FOREST SUPERVISOR Date

TABLE OF CONTENTS

ITEM PAGE

TABLE OF CONTENTS ……………………………...…..……..2

AREA MAP ..............................………………………

SITE MAP …………………………………………………...……4

SUMMARIES OF QUANTITES………………

CULVERT CLEANING SCHEDULE…...……………..….….…6

DITCH CLEANING SCHEDULE…………………..….….….…6

CULVERT REPLACEMENT SCHEDULE……..……….…..…7

NOTES FOR BASE BID ITEMS………..……………..………...8-11

DESCRIPTION OF WORK FOR BASE BID ITEMS................12-13

NOTES FOR ALTERNATE BID ITEMS………………….…….14

DESCRIPTION OF WORK FOR ALERTNATE BID ITEMS

AREA MAP

SITE MAP

SUMMARIES OF QUANTITIES

BASE BID PAY ITEMS (#238 MP 0.00 – 1.11 1.46)

Item Number Description

Method of Meas. Unit Quantity

151.01 Mobilization LSQ Lump Sum 1

303.20 Ditch Cleaning CQ Mile 1.6

308.02

Roadway Aggregate Shoulder, VDOT Grade 21A, Compaction Method (a)2 AQ Ton 130

308.10

Backfill Aggregate for Culverts, VDOT Grade 21A, Pug Mix, Compaction Method (b) AQ Ton 30

404.02

Minor Hot Asphalt Concrete for Resurfacing, VDOT Grade IM-19 with Limestone Aggregate, Compaction Method 2 AQ Ton 2,200

404.03

Minor Hot Asphalt Concrete for Leveling, VDOT Grade IM-19 with Limestone Aggregate, Compaction Method 2 AQ Ton 30

412.01 Tack Coat, Emulsified Asphalt, Grade SS-1 AQ Gallon 1,500

602.01A

18” Aluminized Type 2, 2-2/3” x ½” Corr. Steel Culvert, 0.109” Thick., Compaction Method B AQ

Linear Foot 362

607.20 Cleaning Culverts in Place AQ Each 5

635.01 Temporary Traffic Control LSQ Lump Sum 1

ALTERNATE BID ITEM I (#238 MP 1.11 – 1.26)

Number Description

Method of Meas. Unit Quantity

404.02

Minor Hot Asphalt Concrete for Resurfacing, VDOT Grade IM-19 with Limestone Aggregate, Compaction Method 2 AQ Ton 200

412.01 Tack Coat, Emulsified Asphalt, Grade SS-1 AQ Gallon 150

ALTERNATE BID ITEM II (#238 MP 1.26 – 1.46)

Number Description

Method of Meas. Unit Quantity

404.02

Minor Hot Asphalt Concrete for Resurfacing, VDOT Grade IM-19 with Limestone Aggregate, Compaction Method 2 AQ Ton 260

412.01

Grade SS-1 AQ Gallon 200

ALTERNATE BID ITEM III (#238A MP 0.00 – 0.15)

Number Description

Method of Meas. Unit Quantity

404.02

Minor Hot Asphalt Concrete for Resurfacing, VDOT Grade IM-19 with Limestone Aggregate, Compaction Method 2 AQ Ton 200

412.01

Grade SS-1 AQ Gallon 150

CULVERT CLEANING

SCHEDULE

MILEPOST

0.04 0.08 0.16 0.25 0.44

DITCH CLEANING SCHEDULE

MILEPOSTS

SIDE OF ROAD (LEFT, RIGHT, BOTH,

WING DITCH, or LEAD-OFF DITCH)

0.00 – 0.47 RIGHT

0.51 – 0.54 RIGHT

0.53 10’ LEAD-OFF DITCH

0.57 – 0.95 LEFT

0.95 – 1.00 BOTH

1.00 – 1.01 LEFT

1.01 – 1.02 BOTH

1.03 CLEAN 50’ OF SIDE DITCH ON #238C

1.03

CLEAN 70’ OF LEAD-OFF ON #238C

AT CULVERT OUTLET

1.09 – 1.15 BOTH

1.15 – 1.20 RIGHT

1.19 45’ LEAD-OFF AT CULVERT OUTLET

1.20 – 1.23 BOTH

1.23 – 1.41 LEFT

1.26 32’ LEAD-OFF AT CULVERT OUTLET

1.31 35’ LEAD-OFF AT CULVERT OUTLET

1.37 16’ LEAD-OFF AT CULVERT OUTLET

1.41 – 1.42 BOTH

1.42 15’ WING DITCH

1.42 – 1.46 LEFT

CULVERT REPLACEMENT SCHEDULE

MILEPOST LENGTH (FT)

0.35 34

0.59 38

0.67 42

0.89 38

1.00 44

1.03 34 (on #238C)

1.19 28

1.26 32

1.31 34

1.37 38

NOTES FOR BASE BID ITEMS

GENERAL

All work shall be done in accordance with the plans, the Standard Forest Specifications for Construction of Roads and Bridges on Federal Highway Projects (FP-03), and all applicable Forest Service Supplemental Specifications (FSSS).

All excavated material and material removed from culverts and ditches shall be placed at location(s) designated by the CO. Apply seed, fertilizer, and mulch to this material (subsidiary to the other pay items).

Apply seed, fertilizer, and mulch to all bare soil, except that in the side ditches (subsidiary to the other pay items).

Work shall not be performed on weekends unless approved in writing by the CO.

AGGREGATE

Pay 308.02 includes all material, equipment, and labor to place a 1’ wide aggregate shoulder of VDOT grade 21A aggregate on the non-ditched roadsides of the new pavement from MP 0.00 to 1.11.

Pay item 308.10 includes all material, equipment, and labor to backfill all culverts specified for replacement with VDOT grade 21A pug mix.

Water shall be added by Stationary Plant Method:

Mix the aggregate with other required materials in an approved mixer. Add water during the mixing operation in the amount necessary to provide the moisture content for compacting to the proper density. After mixing, transport the aggregate to the jobsite while it contains the proper moisture content.

NEW CULVERT INSTALLATION

The existing culverts shall become the property of the contractor and shall be removed from Government land.

The new culverts shall be placed on the same alignment and slope as the existing culverts.

Only sections of the existing culverts that interfere with the installation of the culverts shall be removed.

Saw cutting of the pavement is not required.

Backfill new culverts with 9” of VDOT Grade #21 (pay item 308.10) and 3” min. (compacted thickness) of VDOT Grade IM-19 hot asphalt concrete. If a minimum cover of 12” of cover cannot be obtained, the thickness of the aggregate shall be reduced by the CO if required so that the surface of the 3” of the compacted asphalt is flush with the adjacent roadway surfaces.

CLEANING DITICHES & CULVERTS

Pay item 303.20 includes cleaning all side ditches, lead-off ditches, & wing ditches shown in the ditch cleaning schedule.

Backslopes shall not be undercut. Drainage structures and road appurtenances shall not be damaged during this operation and the contractor will be responsible for any damage that occurs from this operation. Handwork required to properly connect ditch flow lines to drainage structures inlets is considered part of this activity.

Work shall be in accordance with Subsection 303.03.The minimum slope of lead-off ditches and wing ditches shall be 2% unless otherwise approved by the CO. Excavating below the existing flow line of the ditches is not required.

Pay item 607.20 This work also includes debris removal from the culvert inlets and outlets within 5’ of the ends of the culverts and outlet ditches, catch basins, and other structures associated with the culvert ends.

Removed material shall be sidecast along #238 and/or #238C at locations approved by the CO.

Material shall be placed where is does not interfere with any existing drainage structures. The material shall be placed outside the roadbed in piles not greater than 3’ high.

HOT ASPHALT CONCRETE MIX

Pay item 404.01 includes the following:

Placing VDOT IM-19 hot mix asphalt as described in the DESCRIPTION OF WORK..

Compacted thickness of 3”.

Placing hot mix asphalt to a compacted thickness of 3” at all culvert replacement locations as described.

Placing VDOT IM-19 hot mix asphalt as described in the DESCRIPTION OF WORK from on FS road #238A. Compacted thickness of 2”.

The new asphalt surface shall be crowned with a slope of 2%.

The existing asphalt width is approximately 17’.

The aggregate used in the hot asphalt concrete pavement shall be crushed limestone that meets the VDOT grading requirements for the mix specified.

The tack coat and its application shall be in accordance with FP-03 Section 412 and all applicable FSSS. The tack coat shall be applied at a rate of 0.1 gallons per square yard or as approved by the CO.

EROSION CONTROL

This work is subsidiary to the other pay items.

Apply seed, fertilizer, and much uniformly to all disturbed areas within 14 days after completion of construction or prior to any forecasted rain. Seeding and mulching of the side ditches is not required. The seed mixture and application rates for seed, fertilizer, and mulch shall be:

Item Type Lb/100 yd2

Seed

Creeping Red Fescue 1 Annual Ryegrass 1

Fertilizer 10-20-10 (or equivalent nutrients) 10 Mulch Straw (Weed Free) 60

Do not seed during windy weather or when the ground is excessively wet frozen, snow covered, extremely dry, cloddy, compacted, or not friable.

When seeding from October 15 to March 1, 1 lbs/yd2 of Cereal Rye (Abruzzi) shall be added to the seed mixture.

The contractor shall notify the CO at least 24 hours prior to all seeding.

DESCRIPTION OF WORK FOR BASE BID ITEMS

MP WORK ITEMS

0.0 Intersection with SR #619

0.00 – 1.11 Clean existing surface. Apply tack coat and 3” of hot asphalt concrete.

Place shoulder aggregate as described in the notes.

0.00 – 0.47 Clean ditch on right

0.04 Clean existing culvert

0.08 Clean existing culvert

0.16 Clean existing culvert

0.25 Clean existing culvert

0.35 Replace existing culvert with 18” x 34’

0.44 Clean existing culvert

0.47 Intersection with FS road #238A to tower on right.

0.51 – 0.54 Clean ditch on right

0.53 Clean 10’ lead-off ditch on right

0.57 – 0.95 Clean ditch on left

0.59 Replace existing culvert with 18” x 38’

0.67 Replace existing culvert with 18” x 42’

0.89 Replace existing culvert with 18” x 38’

0.95 – 1.00 Clean ditches on left and right

1.00 Replace existing culvert with 18” x 44’

1.00 – 1.01 Clean ditch on left

1.01 – 1.02 Clean ditches on left and right

1.03 Intersection with FS road #238C on left.

1.03 Replace existing culvert on FS road #238C with 18” x 34’

1.03 On FS road # 238C, place approximately 20 tons of VDOT IM-19 hot mix asphalt from station 0+00 to 0+70 on the existing roadbed.

1.03 Clean 50’ of side ditch on FS road #238C

1.03 Clean 70’ of lead-off ditch at culvert outlet on FS road #238C

1.09 – 1.15 Clean ditches on left and right

1.15 – 1.20 Clean ditch on right

1.19 Replace existing culvert with 18” x 28’

1.19 Clean 45’ lead-off ditch at culvert outlet

1.20 – 1.23 Clean ditches on left and right

1.23 – 1.41 Clean ditch on left

1.26 Replace existing culvert with 18” x 32’

1.26 Clean 32’ lead-off ditch at culvert outlet

1.31 Replace existing culvert with 18” x 34’

1.31 Clean 35’ lead-off ditch at culvert outlet

1.37 Replace existing culvert with 18” x 38’

1.37 Clean 16’ lead-off ditch at culvert outlet

1.41 – 1.42 Clean ditches on left and right

1.42 Clean wing ditch on right

1.42 – 1.46 Clean ditch on left

1.45 Intersection with FS road #233 on right.

1.46 End of Project at end of existing asphalt pavement.

NOTES FOR ALTERNATE BID ITEMS

HOT ASPHALT CONCRETE PAVEMENT AND TACK COAT

ALTERNATE BID ITEM I (MP 1.11 – 1.26):

o Clean the existing asphalt surface.

o Apply tack coat.

o Place VDOT IM-19 hot mix asphalt. Compacted thickness of 2”.

ALTERNATE BID ITEM II (MP 1.26 – 1.46):

ALTERNATE BID ITEM III (FS ROAD #238A; MP 0.00 – 0.15):

The aggregate used in the hot asphalt concrete pavement shall be crushed limestone that meets the VDOT grading requirements for the mix specified.

The tack coat and its application shall be in accordance with FP-03 Section 412 and all applicable FSSS. The tack coat shall be applied at a rate of 0.1 gallons per square yard or as approved by the CO.

On road #238, the existing asphalt width is approximately 17’.

On road #238A, the existing asphalt width is approximately 16’.

DESCRIPTION OF WORK FOR ALTERNATE BID ITEM I ON #238

1.11 – 1.26 Clean existing asphalt surface, apply SS-1 tack coat, and place 2”

(compacted thickness) of VDOT grade IM-19 hot asphalt concrete over the full width of the existing asphalt surface.

DESCRIPTION OF WORK FOR ALTERNATE BID ITEM II ON #238

1.26 – 1.46 Clean existing asphalt surface, apply SS-1 tack coat, and place 2”

DESCRIPTION OF WORK FOR ALTERNATE BID ITEM III ON #238A

0.00 – 0.15 Clean existing asphalt surface, apply SS-1 tack coat, and place 2”