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 />
1. Outslope or Crown road<br />
2. Install rolling dips<br />
3. Excavate outside berm and smooth over roadway<br />
4. Armor outfalls<br />
5. Rock surface<br />
Site 10: Mile 0.55 to 0.7 (792 ft.)<br />
Priority: High<br />
This section of road is insloped with an outside berm and inboard ditch. Drainage structures<br />
(waterbars) have failed in this section and rills and gullies have formed in the roadway. Extensive<br />
gullies characterize this site. The soil type (Hugo) in this section of road appears to be Serpentine<br />
(Blue Goo). Winter use has exasperated the problem. Sediment is delivered to watercourses,<br />
which flow into Spikenard Creek. Exposed roots at .6 miles.<br />
Remedial treatments include:<br />
1. Outslope or Crown road<br />
2. Retain and improve inboard ditch (mile 0.6-0.7)<br />
3. Install rolling dips and waterbars<br />
4. Excavate outside berm and smooth over roadway<br />
5. Armor outfalls<br />
6. Rock surface<br />
Site 11: Mile 0.7 to 1.1 (End- Jct. Rd. 100) (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. Exposed roots and bedrock<br />
at Junction of Road 600.<br />
Remedial treatments include:<br />
1. Outslope road<br />
2. Install rolling dips<br />
3. Excavate outside berm and smooth over roadway<br />
4. Armor outfalls<br />
5. Rock surface<br />
ROAD 400<br />
Mileage begins at the junction of Road 500 and proceeds north to junction of Road 300.<br />
Site 1: Mile 0.0 to 0.1 (528 ft.)<br />
Priority: Medium<br />
Roadway was constructed on a flat hill-slope and cannot be outsloped. Drainage structures<br />
(waterbars) have failed in this section and rills have formed in the roadway. The grade of this road<br />
is approx. 6-7%, which would make rolling dip installation difficult. Some exposed rock.<br />
Remedial treatments include:<br />
1. Slope or Crown roadbed<br />
2. Install rolling waterbars<br />
3. Install inboard ditch if necessary<br />
4. Excavate outside berm and smooth over roadway as much as possible<br />
5. Armor outfalls<br />
6. Rock surface<br />
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