ATCCH_1C__-_Larry-Helen-Woodrun_SOW-Trail_Log.docx

Attachment: Task Order for NFsNC Trail Maintenance and Construction Contract

Contract number:

Task Order #3 Task Order Name: Wood Run Trail Extension – Trail #396, Helens Loop Trail Maintenance – Trail #712, Larrys Link Trail Maintenance – Trail #711

Location:

All trails are located on the Uwharrie District of the Uwharrie National Forest in Montgomery County, North Carolina. Wood Run Trail is accessed from FSR-517 (off of NC-24/27).

Helen’s Loop and Larry’s Link Trails are accessed from FSR-544 and SR-1154.

The following trail log is divided into two sections: the first section describes the work required for the Wood Run Trail Extension and the second section describes the work for Helen’s Loop and Larry’s Link Trail Maintenance

Wood Run Trail Extension – Trail #396

Work to be performed:

The work shall consist primarily of new trail construction and trail maintenance.

The construction and maintenance work shall consist of, but not be limited to, the following: Clearing, Grubbing, Maintenance and Restoration of Existing Trail (including grading, crowning, etc.), Drainage Maintenance (including ditching), Brush Cutting, Logging Out, Danger Tree Removal, New trail construction, Turnpike construction, Aggregate surfacing of trail tread, Rock crib wall construction, Bridge construction (optional), and Erosion Control.

A detailed trail assessment log follows.

Trail #396 Inspection Date: December 2016 Inspector Name: Erik Crews, Karl Buchholz, Terry Savery Length: 0.89 miles Design Class: Trail Class 3 Design Use: Bike (also managed for hiking) Design Surface: Native

General: The proposed Wood Run Trail Extension shall begin at Forest Service Road 517 (FSR-517). The proposed trail extension shall end at an intersection with the existing Wood Run Trail. Station distances were measured with a surveyor’s wheel. Yellow pin flags were put in every 500 ft. (this changes to orange and pink ribbon at Sta. 20+43).

The Contractor shall visit the project site and view all of the work on the ground prior to submitting a bid.

Design Criteria:

The proposed trail extension shall be a two-way trail with a native surface designed as a Trail Class 3 bike trail and also managed for hiking. This work is intended to accomplish construction of a trail extension and maintenance to an existing section of the trail using design parameters for this current classification.

Design Tread Width – 2 ft. tread typical. 3 ft. wide at turnpike.

Design Cross Slope – 3% to 8% Design Grade – 3% to 10% (short pitch maximum grade – 15% not to exceed 500 LF) Brush Cutting Height - 8 ft.

Brush Cutting Width - 6 ft.

Trail Maintenance:

Perform trail maintenance and new trail construction for the entire trail length as specified in the Trail Log and Schedule of Items. Work shall include existing trail restoration (915), brush cutting (981), drainage maintenance (991), aggregate surfacing, logging out, and danger tree removal (983). All work outlined in the trail-log for which there is no separate pay item shall be incidental to Trail Maintenance & Construction.

The existing trail (old road bed) shall be re-graded to establish a crowned section with ditches. Entrenched areas and mud-holes shall be drained & filled with suitable material, compacted, and graded to drain. Fill material must be well-compacted and stable with positive drainage established such that the fill material will not be washed away. Suitable soils may have migrated from the old roadbed and are often found within the disturbed corridor (e.g., in drainage ways, lead-off ditches, trail-side berms, silt traps, etc.). Drainage ways shall be cleared and these suitable soils shall be ‘pulled in’ and used in trail tread grading operations. Unsuitable material from ditches or silt traps shall be spread along trail shoulders, in depressions, or on fill slopes in a manner which will not affect watercourses and drainage from the traveled way or shoulders.

Frequent, large rolling grade dips with lead-off ditches are required. A minimum of 50 grade dips per mile is required. Install or restore grade dips (where needed and where they will be effective) at approximately 100 ft. spacing. There will be sections of trail where grade dips may need to be spaced closer together.

Suitable Material – Reclaim, conserve and use all suitable on-site material from maintenance and construction operations for specified work. Suitable on-site material shall include soil free of duff with a recognizable granular structure, having the same character as the trail surface and rock that can be accommodated in the trail structure.

Imported Suitable Material –Furnish a suitable, well-graded, compactable material which is not easily erodible and stable without confinement. Provide a sample to the COR for approval prior to delivery to site.

Obtain COR’s approval on all imported materials.

Armoring – There are three types of armoring called for on the project. All armoring will be 3 ft. wide.

1. Stone Layer – Station 9+19 to Station 13+21: Install 3 ft. wide by 3 inch thick stone layer using NC-DOT standard #78M stone.

2. Crowned Turnpike / No Excavation – Station 13+21 to Station 21+52: Crowned Turnpike with no ditches and no edging shall be constructed by removing organic materials, installing geo-filter fabric (per manufacturer’s instructions), layering and compacting suitable imported soil (3 inches deep), and topping with NC-DOT standard #78M stone, compacted (3 inches deep). Excavation is not permitted in this section due to archeological concerns.

3. Crowned Turnpike – Station 41+60 to Station 44+23 (15 ft. from bridge site. If Option is awarded, an additional 30 LF of turnpike will be included; 15 ft. on either side of proposed bridge). Crowned Turnpike with no ditches and no edging shall be constructed by removing organic materials, clearing, grubbing and excavating into mineral soil as required, installing geo-filter fabric (per manufacturer’s instructions), layering and compacting suitable imported soil (3 inches deep), and topping with NC-DOT standard #78M stone, compacted (3 inches deep).

Danger Tree Removal - The Contractor shall remove trees and snags that are broken off or that are in a leaning, unstable position over the trail-way. Standing dead and danger trees within the clearing area and within 15 ft. of either side of the trail centerline shall be removed (i.e., a 30 ft. wide corridor centered on the trail centerline).

Bridge – See attached drawings and specifications for bridge and bridge approach design.

Order of Precedence:

Any inconsistency in this solicitation or contract shall be resolved by giving precedence in the following order:

1 – The Schedule (excluding the specifications) 2 – Representations and Other Instructions 3 – Contract Clauses 4 – Other Documents, Exhibits, and Attachments 5 – The Specifications 6 – Drawings

Trail Log References:

The terms “left” and “right” are referenced proceeding up-station (i.e., beginning at Station 0+00 and proceeding to end of work)

This trail log is for reference purposes and illustrates some of the items of work to be accomplished. The intent of the log is to give a general description of the trail. The trail log does not describe the full scope of the work nor identify every work item. For example, some items of work, such as grade dip locations, hazard tree locations, etc., are specifically called out in the trail log, however not all locations where such items are required have been called out. There will be other locations where such work items will be required. Refer to the IDIQ contract instructions and specifications.

Station

TR#396

Maintenance Need Reference Points Notes / Photos

This section of existing trail shall be maintained at 8 ft. wide with a crowned tread and ditches on both sides. Use on-site soil.

Begin constructing ditches on both sides and pulling suitable material in to build up crowned trail tread section 8 ft. wide.

Compact tread thoroughly.

2+45

Reference: Gate

Begin in-slope to left, construct ditch to grade dip at Sta. 2+08

Continue crowned tread with ditches on both sides. 8 ft. wide trail along existing roadbed.

9+19

End 8 ft. wide crowned section (919 LF)

Trail turns left. DO NOT EXCAVATE into mineral soil from Sta. 9+19 to Sta. 21+52 for archeological protection.

Armor Type 1 – Stone Layer. From Sta. 9+19 to Sta. 13+21, install stone layer: remove organic layer and install 3 inch deep by 3 ft. wide stone (402 LF).

Continue other maintenance items on “no excavation” section (e.g., brushing out, clearing, danger tree removal, etc.)

Begin excavation / construction of 2 ft. wide (minimum) out-sloped, side hill, full-bench trail.

Contractor to identify parallel routes for COR approval. After COR approval, construct dual trails in best location on either side of flagging within 100 ft. corridor (NEPA clearance).

Continue trail construction.

Continue new trail construction.

Continue new trail construction.

End 2 ft. wide side-hill trail construction. (This section trail construction = 2,252 LF).

Armor Type 3 - Crowned Turnpike. Begin 3 ft. wide, crowned turnpike (no ditches, no edging). Remove organic layer, clear and grub prior to turnpike installation. Excavation is permitted on this section.

Option Item: Begin proposed bridge construction - See attached Bridge Drawings and Specifications.

Bridge construction shall include 15 ft. turnpike approach on both sides of bridge (total 30 LF turnpike).

The turnpike at bridge approaches may vary in depth as required to be flush with bridge decking.

(this section of side hill trail construction = 300 LF)

Helen’s Loop (Trail #712) and Larry’s Link (Trail #711) Trail Maintenance

Work to be performed: The work shall consist of trail maintenance, which includes, but is not be limited to, the following: brush cutting, hazard/danger tree removal, logging out, slough & berm removal, road to trail conversion, restoration of existing trail, tread & drainage maintenance, installation or maintenance of rolling grade dips, tread armoring, and erosion control.

A detailed trail assessment log follows:

Larry’s Link Trail (TR711) Inspection Date: July 10-11, 2017 Inspector Name(s): Terry Savery and Kathryn Moore Length: 3,291 linear feet (0.62 mile) Design Class: Trail Class 3 Design Use: Horse / Bike / Hike Design Surface: Native Soil Begin Work: Forest Service Road 544 (FSR544, McLeans Creek Road) End Work: Three-Way Intersection with Trail 712 and Trail 713

Helen’s Loop Trail, west side - Section “A” (TR712-A) Inspection Date: July 10, 2017 Inspector Name(s): Terry Savery and Kathryn Moore Length: 4,384 linear feet (0.83 mile) Design Class: Trail Class 3 Design Use: Horse / Bike / Hike Design Surface: Native Soil Begin Work: Intersection with Trail 711 End Work: State Route 1154 (SR1154, Mullinix Road)

Helen’s Loop Trail, east side - Section “B” (TR712-B) Inspection Date: July 10-11, 2017 Inspector Name(s): Terry Savery and Kathryn Moore Length: 1,907 linear feet (0.36 mile) Design Class: Trail Class 3 Design Use: Horse / Bike / Hike Design Surface: Native Soil Begin Work: On Trail 712 where road section ends. Approximately 3/4 mile south of intersection of Trail 712 and SR 1154 End Work: Three-Way Intersection with Trail 711 and Trail 713

General: Station distances were measured with a surveyor’s wheel. Red and yellow pin-flags with station numbers were set at the beginning and ending points of work sections and at other various locations along the trail. Note that variations in station distances may occur depending on the measuring device used or actual track taken with surveyor’s wheel.

Design Criteria: This is a native surface trail. The design use is for a Trail Class 3 pack & saddle trail. Hiking and biking uses are also allowed.

Typically, travel way widths shall be perpetuated as existing (i.e., no need to narrow down the existing trail to design width) unless otherwise noted, such as when road-to-trail conversion is specified. The specified cross slope must be maintained over the entire trail width such that positive drainage exists from all sections of trail tread, regardless of width.

Design Tread Width: 4 ft.

Design Cross Slope: 5% Maximum Obstacle Height: 6 inches Design Clearing Height: 10 ft.

Design Clearing Width: 8 ft.

Existing Trail Restoration

Grading operations shall be conducted as required to remove ruts, potholes, and corrugations, remove berm, and ou-tslope or crown trail tread to drain, as the terrain dictates. All suitable dislodged material shall be smoothly redistributed over the entire traveled way and firmly packed. The trail shall be graded to establish cross-slope or crown and provide positive drainage. Mud-holes shall be drained & filled with suitable material, compacted, and graded to drain. Suitable soils have migrated from the original trail and are often found within the disturbed trail corridor (e.g., in drainage ways & trail-side berms). The trail shall be de-bermed, drainage ways shall be cleared and these suitable soils shall be ‘pulled in’ and used in trail tread grading, out-sloping or crowning, and for the construction of rolling grade dip ramps. A line item is included in the contract for imported suitable soils to supplement on-site soils as needed to restore trail tread.

Suitable Material – Reclaim, conserve and use all suitable on-site material from maintenance operations for specified work. Suitable on-site material shall include soil free of duff with a recognizable granular structure, having the same character as the trail surface and rock that can be accommodated in the trail structure.

Imported Suitable Material –Furnish a suitable, well-graded, compactable material which is not easily erodible and stable without confinement. Provide a sample to the COR for approval prior to delivery to site.

Obtain COR’s approval on all imported materials.

Acceptable results of grading operations shall be a trail bed that is firm, smooth, finished to width and provides positive drainage from trail tread, without berms or undercutting at shoulders. No roots or rocks (exceeding maximum height as specified in Task Order) are protruding from the graded surface.

Restrict ground disturbing work activities to the current trail-way. Soil can be moved and utilized within this corridor, but not outside.

Road to Trail Conversion

For one 240 LF segment of trail, the work shall consist of road to trail conversion. Road to trail conversion requires removal of organic soils from berm and moving mineral soils from berm to the inner edge along the toe of the cut bank, narrowing the overall width of road bed. The trail tread should then be reestablished at the outer edge of the road bed, out-sloped, and compacted to create a stable, well-drained tread for the entire width of the trail. Duff, organic soils and plants from the berm should be used to establish vegetative cover on inner edge of trail.

Large rolling grade dips with lead-off ditches shall be constructed frequently. There shall be a minimum of 50 grade dips per mile required, however more than this may be required in wet and steep sections of trail. Required grade dip locations are not specifically called out in the trail log. To achieve positive drainage on some sections of trail, where complete berm removal is not possible, punch through the berm and construct new lead-off ditches.

Compaction

Compaction of trail bed and associated earthwork within the trail, (e.g., rolling dips and grade dips) shall be performed with the material moisture content suitable for optimum compaction. The entire width of the trail shall be uniformly and thoroughly compacted. Complete compaction is obtained when no noticeable displacement of material is observed.

When properly compacted, the entire trail width shall be smooth and dressed to produce a uniform cross-slope with a surface free of hollows, depressions, and projections. The entire trail tread width shall hold together under normal use.

Armoring

Two different types of tread armoring are called for in this task order.

1- Articulated Concrete Block (ACB) with geotextile fabric

2- Turnpike – 4 ft. wide Turnpike with no ditches and no edging shall be constructed by removing organic materials, clearing, grubbing and excavating into mineral soil as required, installing geotextile fabric (per manufacturer’s instructions), layering and compacting suitable soil (4 inches deep), and topping with NC-DOT standard #57 stone, compacted (4 inches deep). Turnpike shall be out-sloped or crowned to drain as terrain dictates.

Danger Tree Removal

The Contractor shall remove trees and snags that are broken off or that are in a leaning, unstable position over the trail-way. Standing dead and danger trees within the clearing area and within 15 ft. of either side of the trail centerline shall be removed (i.e., a 30 ft. wide corridor centered on the trail centerline).

Erosion Control

As an erosion control measure, the work site shall be naturalized at the end of every work day. Stockpiled duff, leaf litter, brush and other vegetative materials shall be scattered on disturbed, bare soils on and adjacent to the trail.

Access

Access may be an issue for certain types of equipment. It is the Bidder’s responsibility to view the project trail to assess the full range of construction needs, analyze access points, constraints and the logistics of transporting imported materials.

User-created Trails

There are numerous user created and/or private trails in the area. Not all of these have been identified in the trail log. These trails are to be left as is unless specifically called out for work such as blocking or obliteration in the trail log. There are also numerous sections of split or dual paths along the section of trail to be maintained. Maintain one side and block the non-maintained side using available brush, logs, etc.

The District staff plans to add blazing and signage in selected locations for the sections of trail to be maintained.

Order of Precedence:

Any inconsistency in this solicitation or contract shall be resolved by giving precedence in the following order:

1 – The Schedule (excluding the specifications) 2 – Representations and Other Instructions 3 – Contract Clauses 4 – Other Documents, Exhibits, and Attachments 5 – The Specifications 6 – Drawings

Trail Log References:

The terms “left” and “right” are referenced proceeding up-station (i.e., beginning at Station 0+00 and proceeding to end of work) This trail log is for reference purposes and illustrates some of the items of work to be accomplished. The intent of the log is to give a general description of the trail. The trail log does not describe the full scope of the work nor identify every work item. For example, some items of work, such as grade dip locations, hazard tree locations, etc., are specifically called out in the trail log, however not all locations where such items are required have been called out. There will be other locations where such work items will be required. Refer to the IDIQ contract instructions and specifications. The Contractor shall visit the project site and view all of the work on the ground prior to submitting a bid.

Station Maintenance Need Reference / Notes Photos

TR711

0+00 Begin work- Larrys Link Trail 711.

The work section of Larry’s Link Trail, TR711, begins on the northeast side of FSR-544 (McLeans Creek Rd).

All earthwork shall take place within the existing trail corridor.

Consult with COR regarding limits of “existing trail corridor” if it is not clear.

Typical: Restore trail tread by pulling suitable soils to center, creating an out-sloped tread. Supplement on-site soils with imported suitable soils as necessary. Construct and/or restore grade dips.

Restore trail tread as terrain dictates. In some sections, a crowned tread with side ditches, in lieu of an out-sloped tread, will be a more practical solution.

TR711

2+00 Grub out large roots. Restore trail tread.

TR711

9+22 Muddy section. Remove organic materials. Regrade tread to build up left side and out-slope to the right. Add grade dips.

Install 30 LF x 4 ft. wide Turnpike.

Total - 120 SF

Continue trail maintenance, tread restoration work, addition of grade dips, etc.

TR711

14+46 Grub large roots. Continue to restore entrenched sections of trail.

Continue trail maintenance, tread restoration work, addition of grade dips, etc.

Continue trail maintenance, tread work restoration, addition of grade dips, etc.

TR711

20+76 Stream Crossing.

Armor approaches on each side of stream above high water level by installing ACB System over geotextile fabric. Use Class 4010, set flush to grade and backfilled with native mineral soil. Armoring should be 4 ft. wide x 15 ft. long on near side, and 4 ft. wide x 10 ft. long on far side of stream (within entrenched section seen in photo).

Lay back slopes of entrenchment ‘walls’ (on far side of stream) to 2H:1V. Strict adherence to sedimentation control is critical in this location; next to stream.

No materials are to be placed in stream channel.

Install GDs above stream armoring on each side of crossing to prevent soil movement into stream.

Armoring: 100 SF ACB hardening

Note: There are some braided trails to the left of the area pictured. Leave as is; these are assumed to be user-created trail. Trail 711 continues on the other side of the stream.

TR711

21+25 After crossing stream, continue maintenance on TR711 straight ahead. Note: Intersection of TR711 and TR712A. Trail 712A, Station 0+00, is to the left at this intersection. See maintenance for the TR712A section in this trail log following this TR711 section.

Note: some trail maps show this trail intersection on the wrong side of the stream.

TR711

24+46 to 24+86 Continue tread restoration and trail maintenance

Muddy section. Remove organic materials. Deberm and regrade tread to outslope. Add grade dip.

Install 40 LF x 4 ft. wide Turnpike.

Total - 160 SF

Install 10 LF x 4 ft. wide Turnpike.

Total - 40 SF

TR711

31+33 to 31+57 Muddy section. Maintain trail left. Brush in braided trail on right.

Restore tread by pulling in berm building up trail and outsloping or constructing a crowned tread with side ditches, as terrain dictates.

Trail then meanders right.

Restore tread, continue trail maintenance.

Restore tread, continue trail maintenance.

TR711

32+91 End of Larrys Link Trail 711. Intersection with Trail 712B (end of work at Sta. 19+07) and Trail 713 (no work).

Yellow pin flag right.

TR712A

0+00 Begin work-Helens Loop Trail 712A, section A.

The work section for Helen’s Loop Trail, TR712A, begins at the intersection with TR711, Station 21+25, near the stream (see above). Red pin flag to right of trail at Sta. 0+00

Typical: Restore trail tread by pulling suitable soils to center, creating an outsloped tread. Supplement on-site soils with imported suitable soils as necessary. Construct and/or restore grade dips.

Restore trail tread as terrain dictates. In some sections, a crowned tread with side ditches, in lieu of an outsloped tread, will be a more practical solution.

All earthwork shall take place within the existing trail corridor.

Note: the first half of this trail section runs along the stream; best management practices for erosion prevention and sedimentation control to be used for all trail work.

Install 170 LF x 4 ft. wide Turnpike.

Total - 680 SF

Install 50 LF x 4 ft. wide Turnpike.

Total - 200 SF

TR712A

10+30 Ref: red pin flag right side.

Continue tread restoration, trail maintenance.

Dispose of native log by scattering below the trailway and outside clearing limits. Do not place debris in water courses, or locations where it could impede the flow to, through, or from the drainage structures. Dispose of metal, treated timber, and other manufactured products by removing from Government-administered lands and placing in approved waste disposal sites.

TR712A

29+70 to 30+00 Muddy section. Remove organic materials Pull in berm and regrade tread to drain. Add grade dip.

Install 30 LF x 4 ft. wide Turnpike.

Total - 120 SF

TR712A

31+83 to 32+88 Entrenched section. Pull in material within existing trail corridor. Regrade tread to drain. Add grade dips.

Restore tread by pulling in berm building up trail and outsloping or crowning tread.

TR712B

Option Item 0+00 If Option is awarded: Begin work-Helens Loop Trail 712B, section B.

The work section for Helen’s Loop Trail, TR712B, is located on the eastern side of the loop. Work begins about ¾ mile south of SR1154. The trail here runs along a roadbed. Work begins where the roadbed intersects a logging skid road to the left. The trail work proceeds to the right. Red pin flag set to right of trail at Sta. 0+00.

Typical: Restore trail tread by grading tread, outsloping, installing GDs (rolling grade dips) and compacting for positive drainage. This section of trail also includes road to trail conversion work.

All earthwork shall take place within the existing trail corridor.

TR712B

13+50 to 15+90 Road to Trail Conversion – 4 ft. wide final tread width. Steep in sections. Build in curves.

Ref. Yellow pin flag set at Sta. 15+93

Construct 240 LF ‘road to trail conversion’, see detail. Road to trail conversion requires removal of organic soils from berm and moving mineral soils from berm to the inner edge along the toe of the cut bank, narrowing the overall width of road bed to form a 4 ft. wide trail. The trail tread should be reestablished at the outer edge of the road bed, out-sloped, and compacted to create stable, positively drained tread for the entire width of the trail. Duff, organic soils and plants from the berm should be used to establish vegetative cover on inner edge of the road bed/trail.

Incorporate frequent, broad-based rolling grade dips for positive drainage off tread. Meander trail per detail.

Photo is taken looking back at Trail 712B from 3-way intersection. Note carsonite post.

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