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 />
ROAD 520<br />
Mileage begins at the junction of Road 500 and proceeds north to junction of Road 200.<br />
Site 1: Mile 0.0 to 0.1 (528 ft.)<br />
Priority: High<br />
This section of road is insloped with an outside berm and inboard ditch. There has been<br />
significant erosion to the roadway in this section of road. The inboard ditch has failed in several<br />
locations due to sediment deposition and dense vegetation within the ditch. This has directed<br />
runoff onto the roadway and has led to surface erosion. Runoff accumulates and flows down the<br />
roadway unimpeded. Drainage structures (waterbars) have failed and rills and gullies have<br />
formed in the roadway. Exposed large rocks and boulders are prevalent throughout this section of<br />
road. Waterbars have been improved, but need to be maintained.<br />
Remedial treatments include:<br />
1. Outslope road surface<br />
2. Replace existing waterbars with rolling dips<br />
3. Excavate outside berm and smooth over roadway<br />
4. Armor drainage outlets<br />
5. Import fill to build up roadbed<br />
6. Rock surface<br />
Site 2: Mile 0.1 to 0.2 (Jct. Rd. 200) (528 ft.)<br />
Priority: High<br />
This section of road is insloped with an outside berm and no inboard ditch. The outside berm<br />
contains an excessive amount of material that could be re-incorporated back into the road<br />
running surface. Drainage structures are mainly waterbars, which are degraded and only partially<br />
functional. Exposed rock, and rilling on the road surface. Waterbars need to be regularly<br />
maintained.<br />
Remedial treatments include:<br />
1. Outslope road<br />
2. Install rolling dips and/or improve waterbars<br />
3. Excavate outside berm and smooth over roadway.<br />
4. Armor outfalls<br />
5. Rock surface<br />
ROAD 530<br />
Mileage begins at the junction of Road 500 and proceeds south to property boundary.<br />
Site 1: Mile 0.0 to 0.3 (1584 ft.)<br />
Priority: Low<br />
Roadway was constructed on a flat hill-slope and cannot be outsloped. Drainage structures<br />
(waterbars) are inadequate and runoff is allowed to pool on the roadbed.<br />
Remedial treatments include:<br />
1. Crown or slope road surface<br />
2. Install rolling dips or improve existing waterbars<br />
3. Excavate outside berm and smooth over roadway as much as possible<br />
75
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