US Department of Agriculture (USDA)

Statement of Work

GW&J NF Eastern Divide RD Culvert Cleaning

Solicitation 12443926Q0007

Contents Project General Information

1.0 Scope of Work

2.0 Background

Contractor Requirements

3.0 Technical Requirements / Tasks

4.0 Government Furnished

5.0 Deliverables / Schedule

6.0 Travel

7.0 Contractor’s Key Personnel

8.0 Security Requirements

9.0 Data Rights

10.0 Section 508 – Electronic and Information Technology Standards

Project

EXISTING DRAINAGE STRUCTURE MAINTENANCE

General Information

1.0 Scope of Work

CLEANING, LAYING AND REPAIRING EXISTING DRAINAGE STRUCTURES

2.0 Background

THIS WORK CONSIST OF CLEANING, RELAYING AND REPAIRING EXISTING DRAINGE AND APPURTENANT STRUCTURES.

Contractor Requirements

3.0 Technical Requirements / Tasks

*Cleaning Drainage Structures in Place. Remove foreign material on both ends of structure within the first and last 3 feet of the structure.

*Remove debris, vegetation, and earthen material that impedes inlet and outlet channel flow to and away from the structure. Obtain approval from the CO before removing trees.

*Dispose of removed material.

*Regrade inlet and outlet channels at structures to provide positive drainage. Reshape inlet to direct flow into the structure entrance.

Additional Requirements

Tail and Lead-Off Ditches. Ditches shall be opened to provide drainage away from the roadway, with no berms left at the end of these ditches to block water (daylight). No material excavated from these structures shall be reclaimed onto the roadbed. Culvert Cleaning All culverts shall be inspected and cleaned as necessary of dirt, silt, muck, debris and vegetative matter to maintain a smooth flow of water. Silt shall be removed from culverts so that no more than 2” of debris is left in any pipe, except that all silt shall be removed from the first 3’ at both outlet ends of culverts. This activity also includes – brushing and debris removal at culvert inlets and outlets, catch basins, and other appurtenant structures such that they drain to daylight. All culverts shall be brushed out around the edge of the pipe and minimum of 10’ in all direction of grass, brush and trees with a DBH of 4” or less.

Throughout this operation, care shall be taken to prevent damage to culvert pipes, end sections and all other appurtenances. All material, including brush, extracted in this operation shall be disposed of at the site outside of the roadway from natural or man- made drainages.

Performance Standard

Drainage system maintenance is complete when no obstruction remains in the defined area adjacent to the structure or in ditches which would have the potential to block water from entering the structure, back water into the structure (except for structures designed to function in a back-flooded manner) or divert water outside the defined channel. This includes clearing obstructions from culvert inlets and outlets when performing work Clean Ditches. Equipment operation in live streams or hydraulic flushing of drainage structures is not permitted. When ordered by the Contracting Officer to work in a weed infested area the contractor will be required to prevent spreading the infestation into un-infested areas by cleaning vehicles and equipment. The contractor will use wash stations approved by the Contracting Officer.

Location of Work

As specified on roads listed on the road listing, shown on the plans, marked on the ground and/or ordered by the Contracting Officer and;

Drainage structures including inlet structures, culverts, catch basins, inlet/outlet channels, and ditches within the area shown on the plans or in the supplemental specifications.

Culverts - a minimum external horizontal distance of 10 feet in any direction from the inlet and outlet end and a minimum internal distance of 3 feet from the inlet and outlet ends.

Ditches adjacent to the roadbed.

This work does not include bridges, cattleguards, drain dips, or water bars.

Do not operate in the weed infested areas marked on the ground unless ordered to do so by the Contracting Officer

4.0 Government Furnished

Measurement

Measurement under this Section will be made by the total number of units for each item listed in the SCHEDULE OF ITEMS completed and accepted.

Additional structure sites may be added due to weather or missed sites after surveying was completed. CO will have to approve additional work as funding allows.

5.0 Deliverables / Schedule

DRAINAGE STRUCTURE INSTALLATION AND REMOVAL

REMOVAL OF STRUCTURES AND OBSTRUCTIONS

Disposing of Material. Dispose of debris, unsuitable material, and excess material as follows:

(a) Remove from project. Recycle or dispose of material legally off the project. Submit a statement documenting the nature and quantity of material processed or sold for recycling. Otherwise, submit a signed copy of the disposal agreement before disposal begins.

CULVERTS AND DRAINS

This work consists of furnishing and installing culverts, drains, and precast concrete box culverts.

Construction Requirements. Furnish culvert pipe with a wall thickness not less than that shown in the plans or determined from the fill-height tables included in the plans. Unless agreed upon and approved by CO, an aluminized coated cmp 14 guage is required up to 48 inches, everything over 48 inch is required to use aluminized 12 guage. Use the same material and coating on contiguous pipe sections and special sections (such as elbows and branch connections).

For culvert extensions, furnish the same material as the existing culvert. Plans show the size, length, and approximate location of culverts. Determine final location, skew, length, elevations, and grade according to plan and/or agreed upon by Contracting Officer/COR. Do not order culvert material until the CO has accepted the final structure size, length, and alignment. Construct cast-in-place concrete box culverts according to designed plan. For precast concrete box culverts, submit design drawings and details with supporting calculations according to area location. Excavate and backfill according to specifications and material agreed and approved by CO. Place elongated pipes with the minor axis within 5 degrees of vertical.

Laying Metal Pipe. Position the pipe with a longitudinal joint so the joint is opposite the invert. Unless otherwise specified fully join pipe sections to control the infiltration of soil according to AASHTO M 36 or AASHTO M 196. Use one of the following: Standard Connecting bands. Band corrugation shall match that of the pipe sections being joined or the annular rerolled ends of those pipe sections.

Acceptance. Material for culverts furnished will be evaluated and approved by COR/Inspector.

Installation of culverts will be evaluated and approved by COR/Inspector.

Culverts may also be Furnished by Government in some cases therefore installation cost will differ.

Excavation and backfill will be evaluated and approved by COR/Inspector.

Measurement

Measure the pay items listed in the bid schedule and the following as applicable:

When measuring pipe and box culverts by the linear foot (meter), measure along the invert. Measure end sections, elbows, and branch connections by the each. If there is no pay item for elbows or branch connections, measure them as additional pipe length along the invert. Measure pipe anchor assemblies.

Payment

The accepted quantities will be paid at the contract price per unit of measurement listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section.

Additional Requirements

This section shall be construction under the DBA wage determination.

Install or remove drainage structures including culverts, water-bars, drivable drain dips, and cross ditches.

Culvert Removal---This activity consists of removing damaged or undersized culverts from the roadbed. The contact/CO/COR will indicate which culverts will be removed. Remove structures and obstructions in the roadbed to 12 inches below subgrade elevation. Remove structures and obstructions outside the roadbed to 12 inches below finished grade or to the natural stream bottom. The material removed shall become the property of the Contractor and removed from National Forest System Lands.

Furnish and Install Culvert –This activity consists of furnishing and installing 18”, 24”, 36”, 48”, 60” and 72” diameter Aluminized Type II Coated Corrugated Metal Pipe, HL-93 load rated, inclusive of bands needed for joining multiple pipe sections, and including all bedding and backfilling materials required to complete the work. The maximum depth of culvert installation shall be 5 ft from the finished road surface to the pipe inlet. Activities required for dewatering the jobsite shall be incidental to the culvert installation. The contact/CO/COR will specify the size, length, and location of pipe.

Government Furnished Culvert—This activity consists of installing pipe of determined size by the CO/COR. An 18”, 24”, 36”, 48”,60”, and 72” diameter culvert provided by the Government. Installation will be consistent with the same process minus the cost of the culvert. Government will provide pipe to the site unless discussed and approved by the CO prior to the replacement install.

Lay the bottom of the pipe so that it is in contact with the bedding throughout its length. Place outside laps facing upstream. Ensure that the final installed alignment allows no reverse grades. The COR shall inspect and approve the bedding and pipe alignment prior to backfill.

After bedding is prepared and the pipe is placed, compact the backfill using a mechanical hand tamper (or other suitable vibratory equipment designed for this purpose) under the haunches and alongside the pipe. Use backfilling material that is free of frozen or solid clumps larger than 3 in diameter. On each side of the pipe, place an area of compacted material at least as wide as the diameter of the pipe. Compact the backfill without damaging or displacing the pipe. Place a minimum of 12 inches of compacted material on top of the pipe.

LOAD, HAUL, AND PLACE RIP-RAP

Specification(s):

RIPRAP

Description

This work consists of furnishing and placing ripraps for bank protection, slope protection, drainage structures, and erosion control. Riprap acceptance methods are designated according to Table xxx. If no acceptance method is designated, use Method A.

Riprap classes 1,2 and 3. Use accordingly.

Geotextile filters.

Material Geotextile Riprap

Construction Requirements Dress the slope to produce a smooth surface. If geotextile filter is required, place accordingly.

Placed Riprap.

Placed riprap is rock placed on a prepared surface to form a well-graded mass. Place riprap to its full thickness in one operation to avoid displacing the underlying material. Do not place riprap material by methods that cause segregation or damage to the prepared surface. Place or rearrange individual rocks by mechanical or hand methods to obtain a dense uniform blanket with a reasonably smooth surface.

Measurement

When measuring riprap by the cubic yard (CY), measure in place.

Payment The accepted quantities will be paid at the contract price per unit of measurement for the pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section.

Additional Requirements

Rip-rap used for LOAD, HAUL, AND PLACE RIP-RAP will be VA DOT Class I riprap (12”-24”, mean 18” diameter quarried stone). Use of any other sized or sourced riprap for pay item LOAD, HAUL, AND PLACE RIP-RAP must be approved by COR in writing prior to purchase form the source of supply. Contractor assumes the costs of material purchased, delivered and placed that is not accepted the Government due the Contractor failing to obtain prior approval.

Measurement under this Section will be made by the total number of units for each item listed in the SCHEDULE OF ITEMS completed and accepted. As stated above, rip-rap measurement is in cubic yard (CY). However, the agreed conversion factor will be 1 CY is exactly equal to 1.5 tons (i.e. 20 tons equals 13.33 CY). Material that is priced, measured and invoiced by the Contractor in tonnage shall be verified by certified weight tickets using this designated conversion factor.

Measurement

Measurement under this Section will be made by the total number of units for each item listed in the SCHEDULE OF ITEMS completed and accepted.

Pay Item 841 LOAD, HAUL, AND PLACE RIP-RAP

Acceptable Quality Levels

6.0 Travel

FS Road Name/Number Diameter GPS Coordinates

FS Road Name/Number Pipe Diameter GPS Coordinates Sweet Springs Turnpike FS 176 18” 37.577123 N 80.111127 W 18” 37.577613 N 80.112454 W 18” 37.578705 N 80.114212 W 18” 37.579578 N 80.115253 W 18” 37.582092 N 80.115491 W 18” 37.582406 N 80.116039 W 18” 37.583652 N 80.116181 W 18” 37.584260 N 80.118554 W 24” 37.584313 N 80.119637 W 18” 37.583696 N 80.121914 W 18” 37.583672 N 80.124656 W 18” 37.583063 N 80.125798 W 18” 37.583908 N 80.125299 W 18” 37.585043 N 80.124091 W 18” 37.585786 N 80.123337 W 18” 37.585724 N 80.132749 W

18” 37,585784 N 80.133327 W 18” 37.586863 N 80.134661 W 18” 37.586704 N 80.136204 W 18” 37.586432 N 80.137705 W 18” 37.586905 N 80.139423 W 5 18” 37.587049 N 80.140045 W 18” 37.586894 N 80.140529 W 18” 37.585962 N 80.141523 W 24” 37.586142 N 80.142518 W 18” 37.585589 N 80.144434 W 18” 37.585385 N 80.146222 W 18” 37.585116 N 80.147412 W 18” 37.584841 N 80.148428 W 18” 37.584592 N 80.149296 W 18” 37.584398 N 80.150265 W 18” 37.585306 N 80.152735 W 18” 37.586097 N 80.152778 W 18” 37.586649 N 80.152679 W 18” 37.587330 N 80.152565 W 18” 37.587952 N 80.152532 W 18” 37.589805 N 80.151889 W 18” 37.590877 N 80.151689 W 18” 37.591171 N 80.151518 W 18” 37.591839 N 80.151252 W 18” 37.592848 N 80.151199 W 24” 37.593539 N 80.151403 W 18” 37.594118 N 80.151492 W 18” 37.597123 N 80.153466 W 18” 37.601141 N 80.154831 W 18” 37.601643 N 80.154393 W 18” 37.601332 N 80.155629 W 18” 37.601199 N 80.156125 W 18” 37.600924 N 80.157314 W 18” 37.600488 N 80.158403 W 18” 37.600530 N 80.159706 W Unknown 37.600488 N 80.160925 W 18” 37.600421 N 80.162112 W 18” 37.599850 N 80.163206 W 18” 37.599737 N 80.164113 W 18” 37.599466 N 80.164971 W 18” 37.599220 N 80.166301 W 18” 37.599016 N 80.167099 W 18” 37.598624 N 80.169056 W 18” 37.599253 N 80.168046 W 18” 37.600403 N 80.166166 W 18” 37.600895 N 80.165518 W 18” 37.601841 N 80.164125 W 18” 37.602455 N 80.163270 W 24” 37.602857 N 80.161708 W 18” 37.603666 N 80.160448 W

Cove Branch Rd. FS 275 18” 37.584307 N 80.149364 W 18” 37.583566 N 80.152881 W 18” 37.585044 N 80.158754 W 18” 37.583326 N 80.160760 W

Peaceful Valley Rd. FS604.1 18” 37.574626 N 80.124993 W 18” 37.562488 N 80.139985 W 18” 37.559464 N 80.142657 W 18” 37.557974 N 80.145851 W 18” 37.558288 N 80.149492 W 18” 37.559332 N 80.151768 W 18” 37.560067 N 80.152720 W 24” 37.557796 N 80.159215 W 18” 37.555720 N 80.161345 W 18” 37.555494 N 80.165215 W 18” 37.555165 N 80.165616 W 36” 37.555549 N 80.169374 W 18” 37.552924 N 80.173421 W 18” 37.552951 N 80.174715 W 18” 37.552578 N 80.176870 W 18” 37.550640 N 80.177315 W 18” 37.548895 N 80.180540 W 18” 37.547147 N 80.183922 W 18” 37.545077 N 80.185282 W 18” 37.544649 N 80.185699 W 18” 37.539336 N 80.193768 W 18” 37.534053 N 80.200266 W 18” 37.533189 N 80.200527 W 18” 37.532375 N 80.200959 W 18” 37.528306 N 80.207415 W 18” 37.527741 N 80.210651 W 18” 37.526812 N 80.209459 W

Peaceful Valley Rd. FS 604.2 18” 37.522604 N 80.214140 W 18” 37.523509 N 80.218703 W 18” 37.520946 N 80.220719 W 18” 37.519891 N 80.220212 W 18” 37.517536 N 80.222206 W 18” 37.515563 N 80.227396 W 18” 37.515448 N 80.229617 W 18” 37.515095 N 80.234611 W 18” 37.513933 N 80.238477 W 18” 37.513735 N 80.239755 W Unknown 37.512631 N 80.243324 W 18” 37.509702 N 80.244232 W 18” 37.505087 N 80.243595 W 18” 37.501705 N 80.256177 W 18” 37.500252 N 80.259209 W 18” 37.498404 N 80.262560 W

18” 37.496705 N 80.264967 W

Tub Run Rd. FS 257 18” 37.503196 N 80.179158 W 18” 37.502358 N 80.180347 W 18” 37.498927 N 80.184993 W 18” 37.496486 N 80.190381 W 18” 37.494269 N 80.194519 W 18” 37.494487 N 80.197369 W 18” 37.493335 N 80.199890 W 18” 37.491086 N 80.203090 W 18” 37.488896 N 80.208993 W 18” 37.488121 N 80.212672 W 18” 37.487395 N 80.216031 W 18” 37.487207 N 80.216972 W 18” 37.487169 N 80.217464 W 18” 37.486409 N 80.220340 W 18” 37.485836 N 80.222144 W 24” 37.485153 N 80.223713 W 18” 37.483301 N 80.228634 W 18” 37.476561 N 80.248952 W 24” 37.476072 N 80.248895 W 18” 37.477081 N 80.255224 W 18” 37.476515 N 80.255660 W 18” 37.474034 N 80.255321 W 18” 37.468595 N 80.270483 W 18” 37.467894 N 80.273075 W 18” 37.465556 N 80.274155 W 18” 37.465016 N 80.275710 W 24” 37.463753 N 80.277549 W 18” 37.466151 N 80.280289 W 18” 37.468866 N 80.283606 W 18” 37.458354 N 80.288271 W 18” 37.458241 N 80.291575 W 24” 37.451905 N 80.296187 W Unknown 37.452048 N 80.297889 W 18” 37.449946 N 80.303403 W 18” 37.451936 N 80.305361 W 24” 37.450677 N 80.306719 W 18” 37.450114 N 80.308575 W 18” 37.450503 N 80.310237 W 18” 37.449695 N 80.311726 W 18” 37.450033 N 80.312969 W 18” 37.447925 N 80.318229 W 18” 37.448450 N 80.319535 W 18” 37.448757 N 80.320089 W 18” 37.448795 N 80.321209 W 18” 37.450935 N 80.324362 W

Wildlife Rd. FS 224 Unknown 37.405154 N 80.152488 W 18” 37.405446 N 80.150781 W 18” 37.402511 N 80.147982 W 18” 37.401938 N 80.147754 W 18” 37.401030 N 80.147735 W 18” 37.400167 N 80.147103 W 18” 37.403743 N 80.138141 W 18” 37.404920 N 80.135926 W 18” 37.405025 N 80.132472 W 18” 37.405442 N 80.131923 W 18” 37.406719 N 80.130946 W 18” 37.407839 N 80.129330 W 18” 37.408190 N 80.128722 W 24” 37.408444 N 80.127475 W 24” 37.408508 N 80.127141 W 24” 37.408892 N 80.124480 W 24” 37.410513 N 80.124413 W 18” 37.411471 N 80.124565 W 18” 37.412637 N 80.122373 W 18” 37.413591 N 80.122379 W 18” 37.414103 N 80.121348 W 18” 37.413159 N 80.117599 W 18” 37.414349 N 80.114290 W 18” 37.417502 N 80.113212 W 18” 37.422550 N 80.109873 W 18” 37.427528 N 80.108883 W 18” 37.427424 N 80.107675 W 48” 37.427164 N 80. 103083 W 18” 37.427936 N 80.102489 W 18” 37.429408 N 80.099539 W 18” 37.430895 N 80.096650 W 18” 37.431906 N 80.095223 W 18” 37.436936 N 80.090047 W 18” 37.441396 N 80.086754 W 18” 37.440323 N 80.084018 W 18” 37.440503 N 80.082929 W 18” 37.439919 N 80.079412 W 36” 37.439463 N 80.078673 W 18” 37.439083 N 80.078124 W 18” 37.442427 N 80.077451 W 18” 37.443325 N 80.076861 W

Broad Run rd. FS 183 24” 37.477456 N 80.045055 W 24” 37.477939 N 80.044460 W 24” 37.478724 N 80.043876 W 24” 37.479134 N 80.043705 W 18” 37.481806 N 80.041908 W 24” 37.497493 N 80.022236 W 18” 37.503113 N 80.017671 W

24” 37.503401 N 80.016242 W 36” 37.503383 N 80.015210 W 24” 37.501138 N 80.009587 W 24” 37.499904 N 80.008812 W 24” 37.495515 N 80.001856 W

Hall Rd. FS 209 18” 37.421555 N 80.254366 W 18” 37.420117 N 80.254030 W 18” 37.420830 N 80.251197 W 18” 37.419591 N 80.251882 W 18” 37.419044 N 80.251959 W 24” 37.417919 N 80.251718 W 18” 37.417216 N 80.252230 W 18” 37.415448 N 80.253349 W 18” 37.414557 N 80.254506 W 18” 37.413379 N 80.255660 W 18” 37.412650 N 80.256359 W 18” 37.411818 N 80.256701 W 18” 37.408636 N 80.258896 W 18” 37.407117 N 80.259787 W 18” 37.408228 N 80.257453 W 18” 37.408822 N 80.256187 W 36” 37.411261 N 80.245141 W 9 18” 37.411966 N 80.243166 W 18” 37.410221 N 80.237604 W 18” 37.409699 N 80.238172 W 18” 37.409203 N 80.238048 W 18” 37.409818 N 80.236391 W 18” 37.409477 N 80.236253 W 18” 37.409004 N 80.236469 W 18” 37.407713 N 80.236648 W 18” 37.407990 N 80.236252 W 18” 37.408880 N 80.235396 W 24” 37.409877 N 80.233877 W 18” 37.409243 N 80.233886 W 18” 37.409104 N 80.231384 W 18” 37.410391 N 80.229752 W 18” 37.410738 N 80.229594 W 18” 37.408657 N 80.228697 W 18” 37.407409 N 80.228512 W 18” 37.406382 N 80.228258 W 18” 37.405387 N 80.227566 W 18” 37.404701 N 80.226872 W 18” 37.403934 N 80.226392 W Unknown 37.403495 N 80.226211 W

Brush Mnt. Rd FS 11060 18” 37.336575 N 80.252549 W 18” 37.340200 N 80.252904 W 18” 37.342186 N 80.251256 W 18” 37.342918 N 80.250696 W

18” 37.343875 N 80.251217 W 18” 37.344983 N 80.252366 W 18” 37.345405 N 80.251811 W Unknown 37.345461 N 80.251792 W 18” 37.345966 N 80.251672 W 18” 37.346179 N 80.251121 W 18” 37.345765 N 80.250361 W 18” 37.346259 N 80.250511 W 18” 37.347120 N 80.250862 W 18” 37.346825 N 80.251711 W 18” 37.346899 N 80.252636 W 18” 37.346835 N 80.252996 W 18” 37.346248 N 80.253320 W 18” 37.346117 N 80.254362 W 18” 37.345499 N 80.254437 W 18” 37.344748 N 80.254459 W 18” 37.344405 N 80.255528 W 18” 37.344652 N 80.256438 W 18” 37.349316 N 80.252675 W 18” 37.350365 N 80.251856 W 18” 37.351283 N 80.250531 W 18” 37.352151 N 80.248207 W 18” 37.353004 N 80.246408 W 18” 37.354739 N 80.244327 W

Larkin Line Rd. FS 5048 18” 37.403602 N 80.382853 W 18” 37.405260 N 80.380215 W 10 18” 37.407874 N 80.376630 W 18” 37.407930 N 80.374939 W

Johns Creek Mnt. Rd. FS 10730 18” 37.386426 N 80.393597 W 18” 37.386405 N 80.394083 W 18” 37.386289 N 80.394900 W 18” 37.386151 N 80.396019 W 18” 37.385958 N 80.396942 W 18” 37.385244 N 80.398692 W

Porterfield Rd. FS 10631 18” 37.448512 N 80.404234 W 18” 37.447984 N 80.404533 W 18” 37.447647 N 80.406376 W 18” 37.447006 N 80.410128 W 18” 37.444260 N 80.418603 W 18” 37.443354 N 80.419552 W 18” 37.442840 N 80.420262 W

Mud Lick Rd. FS 279 18” 37.447956 N 80.399042 W 18” 37.449045 N 80.397843 W 18” 37.449602 N 80.396546 W

18” 37.452832 N 80.390341 W 18” 37.452159 N 80.386687 W 18” 37.453933 N 80.382952 W 18” 37.460143 N 80.366753 W 18” 37.460494 N 80.366594 W 18” 37.464167 N 80.364723 W 18” 37.465784 N 80.362091 W 18” 37.466495 N 80.358275 W 18” 37.469398 N 80.355445 W 18” 37.470169 N 80.354890 W Unknown 37.468759 N 80.352510 W 18” 37.468232 N 80.346261 W 18” 37.467401 N 80.344510 W

7.0 Contractor’s Key Personnel

*Experienced Equipment Operator/s including proper PPE and traffic control/signage.

*Site Manager during daily operations.

8.0 Security Requirements

None

9.0 Data Rights

NA

10.0 Section 508 – Electronic and Information Technology Standards

NA