Exhibit 1 - Design Parameters.doc
DOC document 691 KB Posted
- Solicitation number
- AG-4419-S-10-0360
About this file
Exhibit 1 - Design Parameters
View the file
Other files
| File | Type | Posted |
|---|---|---|
| Section B - Revised Schedule of Items.doc | DOC document | |
| SF30 Amendment 2.pdf | ||
| Exhibit 9 - Trail Logs Combined.pdf | ||
| Attachment 1 - Rev Specifiactions.doc | DOC document | |
| Exhibit 5 - Map _ Looking Glass.pdf | ||
| Section M - Rev Evaluation Criteria.doc | DOC document | |
| SF30 Amendment 1.pdf | ||
| Section B - Schedule of Items.doc | DOC document | |
| Section A - SF1449.pdf | ||
| Exhibit 7 - Drawing Grade DIP.pdf | ||
| Exhibit 8 - Drawing Rolling Dip.pdf | ||
| Sections C thru M - Solicitation.doc | DOC document | |
| Attachment 1 - Specifications.doc | DOC document | |
| Exhibit 4 - Trail Log-Deer Lake.pdf | ||
| Exhibit 6 - Map _ Hardtimes-Deer Lake.pdf | ||
| Exhibit 5 - Map _ Looking Glass.pdf | ||
| Exhibit 2 - Trail Log Looking Glass.pdf | ||
| Exhibit 3 - Trail Log-Hardtimes.pdf |
Show all 18
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
Design Parameters Design Parameters are technical guidelines for the survey, design, construction, maintenance, and assessment of National Forest System trails, based on their Designed Use and Trail Class and consistent with their management intent1. Local deviations from any Design Parameter may be established based on trail-specific conditions, topography, or other factors, provided that the deviations are consistent with the general intent of the applicable Trail Class.
Designed Use
HIKER/PEDESTRIAN
| Trail Class 1 |
| Trail Class 2 |
| Trail Class 3 2 |
| Trail Class 4 2 |
| Trail Class 5 2 |
| Design Tread Width |
| Wilderness |
(Single Lane)
| 0” – 12” |
| 6” – 18” |
| 12” – 24” |
Exception: may be
36” – 48” at steep side slopes 18” – 24” Exception: may be 36” – 48” at steep side slopes Not applicable
Non-Wilderness
(Single Lane)
| 0” – 12” |
| 6” – 18” |
| 18” – 36” |
24” – 60”
36” – 72”
Non-Wilderness
(Double Lane)
| 36” |
| 36” |
| 36” – 60” |
| 48” – 72” |
| 72” – 120” |
Structures
(Minimum Width)
| 18” |
| 18” |
| 18” |
| 36” |
| 36” |
| Design Surface3 |
| Type |
| Native, ungraded |
May be continuously rough
Native, limited grading May be continuously rough
Native with some onsite borrow or imported material where needed for stabilization, occasional grading Intermittently rough Native with improved sections of borrow or imported material, routine grading Minor roughness
Likely imported material, routine grading Uniform, firm, and stable
| Protrusions |
| ≤ 24” |
Likely common and continuous ≤ 6” May be common and continuous ≤ 3” May be common, not continuous ≤ 3 ” Uncommon, not continuous No protrusions
Obstacles
(Maximum Height) 24”
14”
10”
8”
No obstacles
| Design Grade 3 |
| Target Grade |
| 5% – 25% |
| 5% – 18% |
| 3% – 12% |
| 2% – 10% |
| 2% – 5% |
Short Pitch Maximum
| 40% |
| 35% |
| 25% |
| 15% |
| 5% |
FSTAG: 5% – 12%2
| Maximum Pitch Density |
| 20% – 40% of trail |
20% – 30% of trail
10% – 20% of trail
5% – 20% of trail
0% – 5% of trail
10/16/2008 Designed Use
HIKER/PEDESTRIAN
| Trail Class 1 |
| Trail Class 2 |
| Trail Class 3 2 |
| Trail Class 4 2 |
| Trail Class 5 2 |
| Design Cross Slope |
| Target Cross Slope |
| Natural side slope |
| 5% – 20% |
| 5% – 10% |
| 3% – 7% |
| 2% – 3% |
(or crowned)
| Maximum Cross Slope |
| Natural side slope |
| 25% |
| 15% |
| 10% |
| 3% |
| Design Clearing |
| Height |
| 6’ |
| 6’ – 7’ |
| 7’ – 8’ |
| 8’ – 10’ |
| 8’ – 10’ |
| Width |
| ≥ 24” |
Some vegetation may encroach into clearing area 24” – 48” Some light vegetation may encroach into clearing area 36” – 60”
48” – 72”
60” – 72”
| Shoulder Clearance |
| 3” – 6” |
| 6” – 12” |
| 12” – 18” |
| 12” – 18” |
| 12” – 24” |
| Design Turn |
| Radius |
| No minimum |
| 2’ – 3’ |
| 3’ – 6’ |
| 4’ – 8’ |
| 6’ – 8’ |
For definitions of Design Parameter attributes (e.g., Design Tread Width and Short Pitch Maximum) see FSH 2309.18, section 05.
2 Trail Classes 3, 4, and 5, in particular, have the potential to provide accessible passage. If assessing or designing trails for accessibility, refer to the Forest Service Trail Accessibility Guidelines (FSTAG) for more specific technical provisions and tolerances (FSM 2350).
3 The determination of trail-specific design grades, design surface, and other Design Parameters should be based upon soils, hydrological conditions, use levels, erosion potential, and other factors contributing to surface stability and overall sustainability of the trail.
Design Parameters are technical guidelines for the survey, design, construction, maintenance, and assessment of National Forest System trails, based on their Designed Use and Trail Class and consistent with their management intent1. Local deviations from any Design Parameter may be established based on trail-specific conditions, topography, or other factors, provided that the deviations are consistent with the general intent of the applicable Trail Class.
Designed Use
PACK AND SADDLE
| Trail Class 1 |
| Trail Class 2 |
| Trail Class 3 |
| Trail Class 4 |
| Trail Class 5 |
| Design Tread Width |
| Wilderness |
(Single Lane)
| Typically not designed or actively managed for equestrians, although use may be accepted |
| 12” – 18” |
May be up to 48” along steep side slopes 48” – 60” or greater along precipices 18” – 24”
May be up to 48” along steep side slopes
48” – 60” or greater along precipices 24”
May be up to 48” along steep side slopes
48” – 60” or greater along precipices Typically not designed or actively managed for equestrians, although use may be accepted
Non-Wilderness
(Single Lane)
12” – 24”
May be up to 48” along steep side slopes
48” – 60” or greater along precipices 18” – 48”
48” – 60” or greater along precipices 24” – 96”
48” – 60” or greater along precipices
Non-Wilderness
(Double Lane)
| 60” |
| 60” – 84” |
| 84” – 120” |
Structures
Other than -bridges: 36”
Bridges without handrails: 60”
Bridges with handrails: 84” clear width Other than bridges: 36”
Bridges without handrails: 60”
Bridges with handrails: 84” clear width Other than bridges: 36”
Bridges without handrails: 60”
Bridges with handrails: 84” clear width
| Design Surface2 |
| Type |
Native, limited grading May be frequently rough Native with some onsite borrow or imported material where needed for stabilization, occasional grading Intermittently rough Native, with improved sections of borrow or imported material, routine grading Minor roughness
Protrusions
≤ 6”
May be common and continuous ≤ 3”
May be common, not continuous ≤ 3”
Obstacles
12”
| 6” |
| 3” |
Designed Use
PACK AND SADDLE
| Trail Class 1 |
| Trail Class 2 |
| Trail Class 3 |
| Trail Class 4 |
| Trail Class 5 |
| Design Grade 2 |
| Target Grade |
5% – 20%
| 3% – 12% |
| 2% – 10% |
Short Pitch Maximum
| 30% |
| 20% |
| 15% |
Maximum Pitch Density
15% – 20% of trail
| 5% – 15% of trail |
| 5% – 10% of trail |
| Design Cross Slope |
| Target Cross Slope |
5% – 10%
| 3% – 5% |
| 0% – 5% |
Maximum Cross Slope
10%
| 8% |
| 5% |
| Design Clearing |
| Height |
8’ – 10’
10’
10’ – 12’
Width
72”
72” – 96”
96”
Shoulder Clearance
6” – 12”
Pack clearance: 36” x 36” 12” – 18”
Pack clearance: 36” x 36” 12” – 18”
Pack clearance: 36” x 36”
| Design Turn |
| Radius |
4’ – 5’
| 5’ – 8’ |
| 6’ – 10’ |
For definitions of Design Parameter attributes (e.g., Design Tread Width and Short Pitch Maximum) see FSH 2309.18, section 05.
The determination of trail-specific design grades, design surface, and other Design Parameters should be based upon soils, hydrological conditions, use levels, erosion potential, and other factors contributing to surface stability and overall sustainability of the trail.
Design Parameters are technical guidelines for the survey, design, construction, maintenance, and assessment of National Forest System trails, based on their Designed Use and Trail Class and consistent with their management intent1. Local deviations from any Design Parameter may be established based on trail-specific conditions, topography, or other factors, provided that the deviations are consistent with the general intent of the applicable Trail Class.
Designed Use
BICYCLE
| Trail Class 1 |
| Trail Class 2 |
| Trail Class 3 |
| Trail Class 4 |
| Trail Class 5 |
| Design Tread Width |
| Single Lane |
| 6” – 12” |
| 12” – 24” |
| 18” – 36” |
| 24” – 48” |
| 36” – 60” |
| Double Lane |
| 36” – 48” |
| 36” – 48” |
| 36” – 48” |
| 48” – 84” |
| 72” – 120” |
Structures
| 18” |
| 18” |
| 36” |
| 48” |
| 60” |
| Design Surface2 |
| Type |
| Native, un-graded |
May be continuously rough Sections of soft or unstable tread on grades < 5% may be common and continuous
Native, limited grading May be continuously rough Sections of soft or unstable tread on grades < 5% may be common
Native with some onsite borrow or imported material where needed for stabilization, occasional grading Intermittently rough Sections of soft or unstable tread on grades < 5% may be present, but not common Native, routine grading with improved sections of borrow or imported materials Stable with minor roughness
Likely imported material, routine grading
Uniform, firm, and stable
| Protrusions |
| ≤ 24” |
Likely common and continuous ≤ 6”
May be common and continuous ≤ 3”
May be common, not continuous ≤ 3”
No protrusions
Obstacles
24”
| 12” |
| 10” |
| 8” |
| No obstacles |
| Design Grade 2 |
| Target Grade |
| 5% – 20% |
| 5% – 12% |
| 3% – 10% |
| 2% – 8% |
| 2% – 5% |
Short Pitch Maximum
30%
50% on downhill-only segments 25%
35% on downhill-only segments
| 15% |
| 10% |
| 8% |
| Maximum Pitch Density |
| 20% – 30% of trail |
| 10% – 30% of trail |
| 10% – 20% of trail |
| 5% – 10% of trail |
| 0% – 5% of trail |
Designed Use
BICYCLE
| Trail Class 1 |
| Trail Class 2 |
| Trail Class 3 |
| Trail Class 4 |
| Trail Class 5 |
| Design Cross Slope |
| Target Cross Slope |
| 5% – 10% |
| 5% – 8% |
| 3% – 8% |
| 3% – 5% |
| 2% – 3% |
| Maximum Cross Slope |
| 10% |
| 10% |
| 8% |
| 5% |
| 5% |
| Design Clearing |
| Height |
| 6’ |
| 6’ – 8’ |
| 8’ |
| 8’ - 9’ |
| 8’ - 9’ |
| Width |
| 24” – 36” |
Some vegetation may encroach into clearing area 36” – 48”
60” – 72”
72” – 96”
72” – 96”
| Shoulder Clearance |
| 0’ – 12” |
| 6” – 12” |
| 6” – 12” |
| 6” – 18” |
| 12” – 18” |
| Design Turn |
| Radius |
| 2’ – 3’ |
3’ – 6’
4’ – 8’
| 8’ – 10’ |
| 8’ - 12’ |
For definitions of Design Parameter attributes (e.g., Design Tread Width and Short Pitch Maximum) see FSH 2309.18, section 05.
The determination of trail-specific design grades, design surface, and other Design Parameters should be based upon soils, hydrological conditions, use levels, erosion potential, and other factors contributing to surface stability and overall sustainability of the trail.
� EMBED MSPhotoEd.3 ���
PAGE
_1211721207.bin
File details come from the government source that posted it. Updated .