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Home My WebLink About120712-ADL 108047 PD final atm C road construction requirmentsATTACHMENT "C" 1:11] 19111 11IFA ROAD CONSTRUCTION AND MAINTENANCE REQUIREMENTS 1. Road and Landing Construction.. The GRANTEE shall take all measures which the STATE determines necessary to protect stream banks and stream courses during road and landing construction and to prevent erosion of exposed soil and fill material including but not limited to the following: A. Road Specifications. The following road segments, must be built to the specifications described below, and in the location marked on the ground with orange centerline ribbon (also shown on timber sale layout map). (1) Mainline Road B. Ballast. Ballast shall be obtained from an approved borrow pit. The above roads shall be rocked and shaped according to the specifications as shown in Appendix "B". C. Road Fill. Unless otherwise approved in writing and staked on the ground by the STATE, road fill placed by the GRANTEE shall not cover, encroach on, or alter permanent or intermittent water channels. D. Culverts. Culverts will be as specified on the timber sale layout map, see Exhibit F. The drainage structures identified are for obvious surface waters. GRANTEE should be prepared to: (1) Increase structure size as required if conditions warrant, i.e. debris problems or drainage modification due to logging or road construction and (2) Install relief culverts every 1000 feet, or less to relieve ditch -line catchment. 2. Bridae Construction. A. One end of each new bridge must be firmly anchored; B. An earth embankment constructed for use as a bridge approach must be protected from erosion by using planted or seeded ground cover, ADL 108047 Attachment "C" Page 1 of b 3-12-12 bulkheads, rock riprap, retaining walls, or other equally effective means; C. A bridge must be installed in such a way as to minimize disturbance to the bed and banks of a stream. No part of the finished bridge structure will be below the high water marks of the stream or obstructing the stream's flow between ordinary high water; D. Bridge footers and back walls will be built by the GRANTEE to the specifications as detailed on the attached Drawing Sheet S28. The modular bridges, pressure treated lumber and the fasteners specified in the drawings will be provided by the State. The pressure treated timber will have been treated in accordance with AWPA C1 & C2 for ground contact with ACQ, with a 0.6 retention. The GRANTEE will be responsible for the mobilization of all materials to the site from staging area(s) within the City of Wrangell in a safe and efficient manner. The modular bridges provided are Hamilton style two-piece modular bridges. The GRANTEE will also be responsible for all labor, equipment, permits and precautions necessary to transport, handle, fabricate, modify and install the completed bridge structures. E. Bridge footers will be placed on competent material such as bedrock or compacted shot rock adequately protected as specified in B. F. The bridge will be placed as designed and staked in the field at each crossing by the STATE's representative. 3. Road Maintenance. A. On- oin Maintenance. Once initial operations involving road use under this contract commence by the GRANTEE, maintenance shall be an on -going function throughout the duration of the contract. The GRANTEE may cease maintenance operations during prolonged shut -down periods providing all roads are stabilized according to the standards specified in (E) below with prior written approval by the STATE. ADL 108047 Attachment "C" Page 2 of 6 3-12-12 B. Existing Road Cross Sections. The GRANTEE shall maintain existing road cross sections by blading and shaping the surface and shoulders or replacing surfacing as required by the STATE. C. Avoid Fouling Surface. While performing ordinary road maintenance work the GRANTEE shall avoid permanently fouling gravel or rock surfaces through covering them with earth or debris from side ditches, slides or other sources. The GRANTEE shall avoid blading surface material off the road surface. D. Minimize Damap-e. The GRANTEE shall minimize damage to ditches, drainage structures, slopes and road surfaces. Where damage does occur, the GRANTEE shall restore the road and structures to their prior condition within a two -week period, unless the STATE requires a shorter or longer period of time under the circumstances. E. Preventative Maintenance. The GRANTEE shall perform preventative maintenance at the end of each operating season to minimize weather damage during the non -hauling period. This may include cross -ditching, post -haul blading to remove berms, ruts or other surface irregularities that would interfere with normal runoff of water and cleaning ditches and culverts. F. Seasonal Work. The GRANTEE shall perform all seasonal weather clean- up, removal of bank slough, minor slides and fallen timber, brush road, replace material eroded from slopes, and clean out drainage ditches and culverts at the beginning of each operating season. In removing material from slides or other sources, the GRANTEE shall deposit the material in a location where it will not erode into streams, lakes or reservoirs. Cut slopes, slumps, or other areas of exposed soil that are at risk for producing sedimentation of surface waters will be grass seeded or otherwise stabilized to reduce sediment transport. G. Work Upon Termination. Upon termination of use, all roads shall be either put to bed, in compliance with the Alaska Forest Practices Act and Regulations or at the option of the STATE, they may be maintained as specified in (E) and (F) above. ADL 14$047 Attachment "C" Page 3 of 6 3-12-12 5. Road Maintenance Agreements. If the GRANTEE jointly uses the Roads and Related Transportation Facilities with other authorized parties under this, or a subsequent contract, each party shall be required to enter into a joint use road maintenance agreement prior to hauling logs on the jointly used roads, see Agreement Paragraph 10. 6. Road Standards. A. General Conditions. 1. Road Width. Roads shall be 20 feet, including ditch (see typical roadbed section) and 35 feet where designated turnouts are built. A double width roadway will be constructed for the last 50 feet of a road location or a "T" style turnaround to facilitate safe and efficient vehicle turnaround. 2. Surfacing Width. 14-16 feet. 3. Surfacing. The minimum necessary to allow log trucking without surface deformation. 4. Turnouts. Will be inter -visible, with a surfaced length of 50 feet at full width. 5. Grade. The maximum grade on the "mainline" segments listed in (A) above, is 12%. The maximum grade on all spurs is 16% unless otherwise approved in writing by the STATE representative. 6. Degree of Curvature. The absolute maximum permitted is 100 degrees. The ordinary designed maximum shall be 90 degrees. B. Road Signage. 1. Sig_ns. A "stop sign" and "trucks entering roadway" signs (2 each) will be erected at the junction of the enter location here. C. Clearing and Grubbing 1. The clearing boundary limits outside of the sale area will be 75' on either side of the centerline. Within the sale area, the GRANTEE may determine the clearing limits. ADL 108047 Attachment "C" Page 4 of 6 3-12-12 2. Snags and trees leaning heavily over the roadway that are outside the clearing limits shall be felled. Snags will be felled in conjunction with cutting the regular right-of-way. 3. All stumps, any portions of which fall within the cut slopes, shall be removed. 4. Debris will not be piled or pushed against existing trees. D. Gradiniz. 1. All fills 6 feet deep and over shall be widened 2 feet for each 6 feet of centerline depth to a maximum width of 36 feet. Embankment slopes shall not be steeper than 1 114:1 for common and 1:1 for rock. Fills shall be compacted in 2-foot layers. 2. Cut slopes will generally be 314:1 below 70%, 112:1 above 70%, and vertical in rock. ADL 108047 Attachment "C" Page S of 6 3-12-12 M Curves 1.5.1 Typical Roadbed Section Single Lane - With Turnouts. Cut Slopes Extra Widening 1:1 common 112:1 soft rock 114:1 solid rock 1112:1 fill slopes Fills under 6' add 1' Fills over 6' add 2' 2" Crown Inside of 101, - 1 foot 300 - 2 feet 500 - 3 feet 600 - 4 feet The grade and alignment can be changed only with permission of STATE representative when conditions encountered during construction make this advisable. ADL 108047 Attachment "C" Page 6 of 6 3-12-12