Boggs Mountain Demonstration State Forest Draft ... - Cal Fire
Boggs Mountain Demonstration State Forest Draft ... - Cal Fire
Boggs Mountain Demonstration State Forest Draft ... - Cal Fire
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<strong>Boggs</strong> <strong>Mountain</strong> <strong>Demonstration</strong> <strong>State</strong> <strong>Forest</strong> <strong>Draft</strong> Management Plan, June 2008<br />
This section of road is insloped with an outside berm and inboard ditch. The inboard ditch in this<br />
section of road is heavily eroded due to excessive flow, insloped road and widely-spaced ditch<br />
relief culverts. Exposed rock at .3, .45-.5, .7, and .8 miles. Inboard ditch filled in at .45, nonexistent<br />
at .8-.9 miles.<br />
Remedial treatments include:<br />
1. Outslope road<br />
2. Apply a 3 inch layer of ¾ inch crushed rock to the running surface.<br />
3. Install rolling dips<br />
4. Excavate outside berm and smooth over roadway<br />
5. Armor outfalls<br />
Site 3: Mile 0.9 to Jct. Rd. 400 (1.25) (2640 ft.)<br />
Priority: High<br />
(section runs next to campground)<br />
Roadway was constructed on a flat hill-slope and cannot be outsloped. The berm on the outside<br />
road edge channels surface runoff back onto the roadbed. The inboard is heavily eroded due to<br />
excessive flow. There are no ditch relief culverts in this section and existing waterbars have failed<br />
or drain only surface runoff. The waterbars in this section need to extend into the inboard ditch.<br />
Some erosion by campground, exposed rock.<br />
Remedial treatments include:<br />
1. Crown or slope road surface<br />
2. Install rocked rolling dips and /or sharp-angled waterbars<br />
3. Extend waterbars to inboard ditch<br />
4. Armor inside ditch with rock<br />
5. Excavate outside berm and smooth over roadway<br />
6. Spot rock the running surface with 2 inch-minus crushed rock.<br />
Site 4: Mile 0.25 (Jct. Rd. 400) to 0.65 (Jct. Rd. 600) (2112 ft.)<br />
This section of road is insloped with an outside berm and inboard ditch. The inboard ditch has<br />
failed in several locations due to sediment deposition and dense vegetation within the ditch. This<br />
has directed runoff onto the roadway and has led to surface erosion.<br />
Remedial treatments include:<br />
1. Outslope road<br />
2. Spot rock the running surface with ¾ inch crushed rock.<br />
3. Install rolling dips<br />
4. Excavate outside berm and smooth over roadway<br />
5. Armor outfalls<br />
Site 5: Mile 0.65 (Jct. Rd. 600) to 1.7 (Jct. Rd. 540) (5544 ft.)<br />
This section of road is insloped with an outside berm and inboard ditch. Rills and numerous<br />
potholes exist in this section of road. Exposed rock at 2.7 miles.<br />
Remedial treatments include:<br />
1. Outslope road<br />
2. Spot rock the running surface with ¾ inch crushed rock.<br />
3. Install rolling dips<br />
4. Excavate outside berm and smooth over roadway<br />
5. Armor outfalls<br />
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