Attachment_4_Road_Maintenance_Specifications.pdf

ATTACHMENT 4 ROAD MAINTENANCE SPECIFICATIONS

USDA Forest Service

National Forests in Alabama

ROAD MAINTENANCE

DIVISION 100 - GENERAL SPECIFICATIONS

110 - Scope of Contract

Provide all equipment, labor, materials, tools and other incidentals and execute all work necessary to perform the required road maintenance on the designated National Forest roads in accordance with these specifications and exhibits. The work consists of routine maintenance activities normally associated with gravel and native-surfaced single and double-lane roads.

120 – Location and Description of Work

All work to be accomplished is located within the boundaries of the National Forests in Alabama, comprised of the Oakmulgee, Shoal Creek and Talladega Ranger Districts of the Talladega

National Forest, the Bankhead National Forest, the Conecuh National Forest, and the Tuskegee

National Forest. A detailed map showing the specific locations of all roads may be viewed by prospective bidders at each district office.

Oakmulgee Ranger District Bankhead Ranger District

9901 Hwy 5 1070 Hwy 33

Brent, AL 35034 Double Springs, AL 35553

Shoal Creek Ranger District Talladega Ranger District

45 Hwy 281 1001 North Street

Heflin, AL 36264 Talladega, AL 35160

Conecuh Ranger District Tuskegee Ranger District

24481 Hwy 55 125 National Forest Road 949

Andalusia, AL 36420 Tuskegee, AL 36083

130 - Schedule of Work Delivery orders may be placed throughout the fiscal year; however, primary orders for services will be placed during the periods of November 15 through January 15 and March 15 through

September 30. Refer to Schedule of Items for ordering procedures and restrictions. Delivery orders issued by the government will detail the roads to be serviced, the services to be provided, and the order in which performance is required, if applicable. Actual mileage of services ordered will depend on existing conditions at the time of Government inspection.

140 - Equipment Requirements and Transportation

All equipment proposed to be used for performance of the work shall be of the size, type, and in such condition to properly pursue the requirements of this contract. The Contractor's proposed equipment shall be made available to the Contracting Officer's Representative (COR) for inspection prior to award of the contract. If at any time during the course of this contract any equipment is deemed unsatisfactory, the Contracting Officer may order removal and may require a satisfactory replacement, at the contractor's expense. Any movement or transportation of equipment to or from the work area(s) required to pursue the work, or for Contractor's convenience shall be at the Contractor's expense. The contractor’s equipment shall be washed before transporting to or between any districts of the National Forests in

Alabama to perform work under this contract. The equipment shall be made available for inspection by the Government to ensure no dirt, grass or weeds are present before work commences.

150 - Public Safety and Traffic Control

The Contractor shall exercise caution and care while pursuing the work to prevent unnecessary conflict with, or potential hazards to, road users. The contractor shall post flags on each end of the section of road being worked. Signs shall be of the size, quantity, and colors as required in the current edition of the "Manual on Uniform Traffic

Control Devices", (MUTCD). A copy of MUTCD is located in the District Ranger's

Office and may be available to the Contractor for in-office reference on request. These signs shall be moved as needed to properly delineate and identify the section of road being maintained. At no time shall these signs be more than one mile from operating equipment and shall be in place only when road equipment or men are actually performing operations. If for any reason traffic hazards are left in or adjacent to the road after normal work period, they shall be properly signed as hazards and visibly illuminated at night. Segments of unfinished work which may present a hazard to road users, such as rolls of surface material, berms on the shoulder, etc. may not be left in roadway over night, weekends or holidays.

160 - Accomplishment Records and Reports

The contractor shall maintain records of accomplishment using the form shown in Exhibit

B. These records shall be delivered to the Contracting officers Representative weekly.

No payment shall be made prior to receipt of the records and acceptance of the work performed.

DIVISION 200 – TECHNICAL SPECIFICATIONS

210 – Definition of Road Structure

Graphic definitions of road structural terms are shown in Exhibit A.

220 - Maintenance Activities

ALL maintenance work under this contract shall be performed in accordance with the requirements of the Maintenance Activities herein specified.

Only those operations indicated by activity coded in the bid schedule and the activities schedule pertain to this contract.

230 - Soil Moisture Conditions

Suitable moisture conditions for surface blading shall be from five (5) to fifteen (15) percent by weight. Unless authorized by the Contracting Officer's Representative, no finish operations (surface blading, roller compacting) shall be performed while moisture content is outside this range.

ROAD MAINTENANCE ACTIVITIES

Activity Code 130(01)

Activity: Blading Roads. Blading operations shall be conducted as required to remove by cutting out ruts, potholes, corrugations, and berms. Total roadbed width, including turnouts, turnarounds, road intersections, and parking lots shall be bladed as existing unless otherwise directed. A minimum of four passes with a motor grader blade shall be required on every road. All suitable material which has been worked onto road shoulder by traffic or maintenance activities shall be reclaimed onto the traveled way.

A definite continuous and smooth line between traveled way and road shoulder shall be obtained. Usual amounts of grass, leaf litter or pine straw shall be smoothly spread within the riding surface after movement sufficient to sift out surface aggregate. Where grass, leaf liter or pine straw is excessive, as determined by the Contracting Officer's Representative, this material will be piled in spots or small broken windrows along the road shoulder and left to decay. Care shall be taken that this material does not interfere with surface drainage or safe use of the road. Any such material shall be reclaimed in subsequent bladings and smoothly spread within the riding surface. Loose rocks protruding three (3) inches or more above the graded surface shall be removed from the traveled way. It is permissible to waste oversize rocks over the road shoulder edge away from drainage ditches. Down trees, logs, stumps, etc. in ditches or roadway shall be removed as a part of the blading operation. Contractors will not be required to remove slash and other debris left by logging operations. Blading operations shall be conducted as required to remove surface material and accumulated debris from bridge decks. Transitions between the road surface and structures shall be smooth and uniform. Any handwork required to meet these requirements is considered a part of this activity. Traveled way widths shall be perpetuated as existing. Dips and swales within the traveled way designed to control surface drainage shall be maintained. All suitable road material shall be smoothly redistributed over the entire traveled way to produce proper cross slope or crown (1/4" to 1/2" per foot).

Method of Measurement: Measurement shall be made to the nearest tenth (0.1) of a mile using an odometer calibrated over a measured mile. Payment shall be made for all work in this activity after inspection and acceptance under each pay unit.

Activity Code 131(01)

Activity: Blading and Ditching Roads. Road Drainage Ditches - All suitable material (having the same character as the road surface) excavated through this activity shall be reclaimed and used within the traveled way. Unsuitable material shall be spread along road shoulder, or fill slopes to assure road surface drainage and preventing unsuitable material being pulled or washed onto road surfaces. Following this work the traveled way shall be bladed in accordance with the road blading requirements, as listed under Activity Code 130. Ditches shall be maintained in their original location to the shape and grade required to insure drainage of the roadway. Drainage structures, ditch checks, and road appurtenances shall not be damaged during this operation.

Handwork required to properly connect ditch flow lines to drainage structure inlets is considered a part of this activity. Only spot ditching shall be done, unless otherwise directed. Sections of road ditches which are free from brush, drain properly and meet the original design depth

(usually 1 foot deep) shall not be graded. Wing and lead off ditches shall be kept open to provide drainage away from the road as directed by the Contracting Officer’s Representative.

Method of Measurement: Measurement shall be made to the nearest tenth (0.1) of a mile using an

Activity Code: 204

Activity: Wing, lead-off and pipe tail ditch Heavy Maintenance. Designated wing and lead-off ditches shall be open (1.5:1) to provide drainage away from the roads to the length specified by the COR.

Designated pipe tail ditches shall be opened and cleaned in such a way that shall allow water to drain away and sloped to prevent accumulation of silt as required by the COR. Equipment shall be of size and type capable of performing the specified work. Downed trees, logs, stumps, etc. in ditches shall be removed as a part of the ditching operation. Material removed shall be deposited down slope of ditch and spread no higher than 6” unless permitted by COR, or hauled off National Forest land and disposed of legally.

Method of Measurement: Measurement shall be made by the each. Payment shall be made after

Activity Code: 251

Activity: Place rip-rap. This work consists of furnishing, hauling, and placing of Class I rip-rap for bank protection, slope protection, drainage structure, erosion control, and other locations as specified in the task order. The cost of excavation, embankment and haul required for placement of rip-rap is incidental to pay item 251. When required by COR, stone from the project site may be utilized.

Method of Measurement: Measurement shall be made by the ton in the hauling vehicle. Payment shall be made after inspection and acceptance by the ton using weight tickets certified and signed by a State approved Weight Master.

Activity Code: 301A

Activity: Aggregate Surfacing. Designated quantities of 825B aggregate shall be placed, mixed, and spread by road mixing with a motor grader, supplemented if necessary by other approved mixing equipment that will produce satisfactory results. Aggregate shall be dumped directly on the roadway in a uniform layer with no segregation of size and to a loose depth that will provide the required compacted thickness specified. Adjust the moisture content to obtain a uniform mixture with moisture content within

2 percent of the optimum moisture content. The dumping operation shall be limited to the amount of material which can be mixed by the end of the day. This material shall be shaped and compacted no later than the day after mixing. In no instance shall the shaping and compacting be later than the second day after the dumping operation. No deviation from the above will be allowed with out written permission of the COR. Aggregate shall be mixed without disturbing more than 1 inch of the underlying layer.

Compact the aggregate by operating spreading and hauling equipment to produce a smooth, even surface over the entire width and length of each layer. Surfacing operations will occur together with Activity

Code 130 or 131.

Method of Measurement: Measurement shall be made by the ton in the hauling vehicle. Payment shall be made after inspection and acceptance by the ton using weight tickets certified and signed by a State

Activity Code: 301B

Activity: Aggregate Surfacing (tailgate spread). Designated quantities of 825B aggregate shall be placed and spread by dumping directly on the roadway in a uniform layer with no segregation of size and to a loose depth that will provide the required compacted thickness specified.

Method of Measurement: Measurement shall be made by the ton in the hauling vehicle. Payment shall be made after inspection and acceptance by the ton using weight tickets certified and signed by a State

Activity Code: 301C

Activity: Aggregate Surfacing. Designated quantities of #4 aggregate shall be placed, mixed, and spread by road mixing with a motor grader, supplemented if necessary by other approved mixing equipment that will produce satisfactory results. Aggregate shall be dumped directly on the roadway in a uniform layer with no segregation of size and to a loose depth that will provide the required compacted thickness specified. Adjust the moisture content to obtain a uniform mixture with moisture content within 2 percent of the optimum moisture content. The dumping operation shall be limited to the amount of material which can be mixed by the end of the day. This material shall be shaped and compacted no later than the day after mixing. In no instance shall the shaping and compacting be later than the second day after the dumping operation. No deviation from the above will be allowed without written permission of the COR.

Aggregate shall be mixed without disturbing more than 1 inch of the underlying layer. Compact the aggregate by operating spreading and hauling equipment to produce a smooth, even surface over the entire width and length of each layer. Surfacing operations will occur together with Activity Code 130 or

131.

Method of Measurement: Measurement shall be made by the ton in the hauling vehicle. Payment shall be made after inspection and acceptance by the ton using weight tickets certified and signed by a State

Activity Code: 301D

Activity: Aggregate Surfacing (tailgate spread). Designated quantities of #4 aggregate shall be placed and spread by dumping directly on the roadway in a uniform layer with no segregation of size and to a loose depth that will provide the required compacted thickness specified.

Method of Measurement: Measurement shall be made by the ton in the hauling vehicle. Payment shall be made after inspection and acceptance by the ton using weight tickets certified and signed by a State

Activity Code: 301E

Activity: Road Compacting and Finishing.

During the blading operation, operate steel roller or pneumatic tires compaction equipment over the entire travel width and shoulders as appropriate. Compact each layer full width. Roll from the sides to the center, parallel to the centerline of the road. Supply water at the necessary amount for moisture control of aggregates and road bed. Moisten or dry the aggregate to uniform moisture content between 5 and 7 percent based on total dry weight of the mixture. The maximum compacted thickness of any layer of aggregate base or shoulder is 6 inches. The maximum compacted thickness of any layer may be increased to 8 inches when using vibrating compaction equipment or other compaction equipment if approved by the COR. Provide equipment weighing greater than 10 tons, when ballasted. Compact the road surface with three passes of compaction equipment, until visual deflection ceases, or to a minimum uniform density of 95% of the standard density. Compact the aggregate shoulders until no further consolidation is gained by additional blading and rolling. Do not over compact to cause separation of top layer of material.

The COR will visually verify compaction of the roadway. When necessary, lightly rip area before rolling to obtain compaction. Blade the surface of each layer during the compaction operations to remove irregularities and produce a smooth, even surface. Compacting and finishing operation will occur together with Activity Code 130 or 131.

Method of Measurement: Measurement shall be made to the nearest tenth (0.1) of a mile using an

Activity Code: 303

Activity: Roadway Reconditioning. Remove all slide material, sediment, vegetation, and other debris from the existing ditches and culvert inlets and outlets. Clean culverts and reshape ditches and culvert inlets and outlets to achieve positive drainage and a uniform ditch width, depth, and grade. Repair soft and unstable areas. Remove all slide material, vegetation, and other debris from existing shoulders including shoulders of parking areas, turnouts, and other widened areas. Remove all organic, deleterious material larger than 6 inches from the top 6 inches of sub-grade. Scarify and shape the traveled way and shoulders at locations where needed and to a depth of 6 inches for the full width of the road including shoulders. Remove surface irregularities and shape to provide a uniform surface. Dispose of rock larger than 4 inches brought to the surface during scarification outside of road prism. For portions of roads not requiring scarification, the roadbed may contain rocks larger than 4 inches provided they do not extend above the finished roadbed surface. Reduce in place or remove rock extending above the finished roadbed surface. Compact by operating equipment over the full width. Repair soft and unstable areas to the full depth of the aggregate surface. Scarify to the depth of the aggregate surface or to a depth of 8 inches, whichever is less, and remove surface irregularities. Reshape, finish, and compact the entire aggregate surface. Maintain, or re-establish the existing cross slope or crown unless otherwise shown on the plans. Establish a blading pattern that will retain the surfacing on the roadbed and provide a thorough mixing of the materials within the completed surface width.

Blade and shape the subgrade for both surfaced and unsurfaced roads when moisture content is suitable for compaction. Dispose of unsuitable material as directed by CO.

Method of Measurement: Measurement shall be made to the nearest tenth (0.1) of a mile using an odometer calibrated over a measured roadway mile. Payment shall be made after inspection and acceptance under roadway mile (both sides) pay unit. The minimum quantity for which a task order will be issued for this pay item is 0.5 miles in any one location.

Activity Code: 602A

Activity: Install new pipe or replace existing pipe; 18” Corrugated Steel Pipe, Aluminized Type 2, 16 gauge. Provide all labor and materials necessary to install culvert pipe with wall thickness, coating, and diameter shown above and length shown on Task Order. If replacing existing pipe, removing and hauling existing pipe and any unsuitable material as a result of the pipe removal is considered incidental to this activity code. Culvert installation shall have a minimum of 12” of cover, 1% camber, 6” of bedding material and skewed as directed by COR. Bedding material shall be native material or stone screenings roughly shaped to fit bottom of pipe. The length of bedding shall not exceed the length of the pipe.

Ensure that the final installed alignment of entire pipe allows no reverse grades, and does not permit horizontal and vertical alignments to vary from a straight line drawn from center of inlet to center of outlet by more than 2 percent of pipe center length or 1.0 feet, whichever is less. Join pipe sections together with coupling bands according to AASHTO M 36 or M 196. Limit the use of bell and spigot joints to slopes of 10% or less. Limit the use of bands with projections (dimpled) to slopes of 15% or less.

Method of Measurement: Measurement shall be made by the linear foot. Payment shall be made after inspection and acceptance under linear foot pay unit.

Activity Code: 602B

Activity: Install new pipe or replace existing pipe; 18” Corrugated Steel Pipe, Aluminized Type 2, 14 gauge. Provide all labor and materials necessary to install culvert pipe with wall thickness, coating, and diameter shown above and length shown on Task Order. If replacing existing pipe, removing and hauling existing pipe and any unsuitable material as a result of the pipe removal is considered incidental to this activity code. Culvert installation shall have a minimum of 12” of cover, 1% camber, 6” of bedding material and skewed as directed by COR. Bedding material shall be native material or stone screenings roughly shaped to fit bottom of pipe. The length of bedding shall not exceed the length of the pipe.

Ensure that the final installed alignment of entire pipe allows no reverse grades, and does not permit horizontal and vertical alignments to vary from a straight line drawn from center of inlet to center of outlet by more than 2 percent of pipe center length or 1.0 feet, whichever is less. Join pipe sections together with coupling bands according to AASHTO M 36 or M 196. Limit the use of bell and spigot joints to slopes of 10% or less. Limit the use of bands with projections (dimpled) to slopes of 15% or less.

Activity Code: 602C

Activity: Install new pipe or replace existing pipe; 24” Corrugated Steel Pipe, Aluminized Type 2, 16 gauge. Provide all labor and materials necessary to install culvert pipe with wall thickness, coating, and diameter shown above and length shown on Task Order. If replacing existing pipe, removing and hauling existing pipe and any unsuitable material as a result of the pipe removal is considered incidental to this activity code. Culvert installation shall have a minimum of 12” of cover, 1% camber, 6” of bedding material and skewed as directed by COR. Bedding material shall be native material or stone screenings roughly shaped to fit bottom of pipe. The length of bedding shall not exceed the length of the pipe.

Ensure that the final installed alignment of entire pipe allows no reverse grades, and does not permit horizontal and vertical alignments to vary from a straight line drawn from center of inlet to center of outlet by more than 2 percent of pipe center length or 1.0 feet, whichever is less. Join pipe sections together with coupling bands according to AASHTO M 36 or M 196. Limit the use of bell and spigot joints to slopes of 10% or less. Limit the use of bands with projections (dimpled) to slopes of 15% or less.

Activity Code: 602D

Activity: Install new pipe or replace existing pipe; 24” Corrugated Steel Pipe, Aluminized Type 2, 14 gauge. Provide all labor and materials necessary to install culvert pipe with wall thickness, coating, and diameter shown above and length shown on Task Order. If replacing existing pipe, removing and hauling existing pipe and any unsuitable material as a result of the pipe removal is considered incidental to this activity code. Culvert installation shall have a minimum of 12” of cover, 1% camber, 6” of bedding material and skewed as directed by COR. Bedding material shall be native material or stone screenings roughly shaped to fit bottom of pipe. The length of bedding shall not exceed the length of the pipe.

Ensure that the final installed alignment of entire pipe allows no reverse grades, and does not permit horizontal and vertical alignments to vary from a straight line drawn from center of inlet to center of outlet by more than 2 percent of pipe center length or 1.0 feet, whichever is less. Join pipe sections together with coupling bands according to AASHTO M 36 or M 196. Limit the use of bell and spigot joints to slopes of 10% or less. Limit the use of bands with projections (dimpled) to slopes of 15% or less.

Activity Code: 602E

Activity: Install new pipe or replace existing pipe; 36” Corrugated Steel Pipe, Aluminized Type 2, 16 gauge. Provide all labor and materials necessary to install culvert pipe with wall thickness, coating, and diameter shown above and length shown on Task Order. If replacing existing pipe, removing and hauling existing pipe and any unsuitable material as a result of the pipe removal is considered incidental to this activity code. Culvert installation shall have a minimum of 12” of cover, 1% camber, 6” of bedding material and skewed as directed by COR. Bedding material shall be native material or stone screenings roughly shaped to fit bottom of pipe. The length of bedding shall not exceed the length of the pipe.

Ensure that the final installed alignment of entire pipe allows no reverse grades, and does not permit horizontal and vertical alignments to vary from a straight line drawn from center of inlet to center of outlet by more than 2 percent of pipe center length or 1.0 feet, whichever is less. Join pipe sections together with coupling bands according to AASHTO M 36 or M 196. Limit the use of bell and spigot joints to slopes of 10% or less. Limit the use of bands with projections (dimpled) to slopes of 15% or less.

Activity Code: 602F

Activity: Install new pipe or replace existing pipe; 36” Corrugated Steel Pipe, Aluminized Type 2, 14 gauge. Provide all labor and materials necessary to install culvert pipe with wall thickness, coating, and diameter shown above and length shown on Task Order. If replacing existing pipe, removing and hauling existing pipe and any unsuitable material as a result of the pipe removal is considered incidental to this activity code. Culvert installation shall have a minimum of 12” of cover, 1% camber, 6” of bedding material and skewed as directed by COR. Bedding material shall be native material or stone screenings roughly shaped to fit bottom of pipe. The length of bedding shall not exceed the length of the pipe.

Ensure that the final installed alignment of entire pipe allows no reverse grades, and does not permit horizontal and vertical alignments to vary from a straight line drawn from center of inlet to center of outlet by more than 2 percent of pipe center length or 1.0 feet, whichever is less. Join pipe sections together with coupling bands according to AASHTO M 36 or M 196. Limit the use of bell and spigot joints to slopes of 10% or less. Limit the use of bands with projections (dimpled) to slopes of 15% or less.

Activity Code: 604

Activity: Construct Cast-in-Place Concrete Inlet Basin. Provide all labor and materials necessary to construct cast-in-place concrete pipe inlet. Concrete composition shall be 3000psi minimum compressive strength at 28 days, with fiber reinforcement. Cement content shall be 611 pounds per cubic yard minimum, water/cement ratio 0.49 maximum, air content 4% minimum. Coarse aggregate size shall conform to AASHTO M 43 with 100% passing 1 ½” sieve. Inlet shall conform to typical drawing and shall be constructed to conform to existing ditch configuration. This pay item shall include removal of existing concrete inlet if necessary.

Method of Measurement: Measurement shall be made per the each. Payment shall be made after

Activity Code: 607

Activity: Culvert cleaning in-place. Provide all labor and materials necessary to clean culverts in-place as shown on Task Order. The cleaning of culverts shall consist of the removal of all rubbish, detritus, and soil deposits accumulated at the inlet and outlet ends of culverts. It also includes the cleaning and shaping of the outlet ditches to the right-of-way limits. The Contractor shall dispose of all the removed material, at his expense, at the locations within the project designated on the plans or by the COR, or at locations outside the project limits selected and obtained by him which comply with all applicable legal and regulatory requirements.

Culverts designated to be cleaned in-place will be identified by road number and mile post (M.P.) on the task order and marked (i.e. flagging) on the field by COR.

Method of Measurement: Measurement shall be made by the each. Payment shall be made after