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Section 780.18 (b) Continued <br />~~ hours required/acre 4840 cu./acre - 600 cu. yd./hr = 8 hours <br />657: 5119.49/hr x 2 scrapers x 8 hours = 51,912/acre <br />Revegeta tion <br />Based on EFC costs: <br />Seed .......:..............................5 60/acre <br />Discing, harrowing. planting (equip 8 Labor) 95/acre <br />Contour Furrowing ......................... 23/acre <br />- TOTAL 5 178/acre <br />Railroad Track Extension Bond <br />The bond estimate for the extension presented below covers the <br />following: <br />1) removal of railroad bed and embankment <br />2) backfilling and grading <br />3) topsoiling <br />4) revegeta tion <br />Production Estimates: <br />Assumptions <br />1) D9L-U used for backfilling <br />2) 657 scraper used for topsoiling <br />3) 16-G Motor Grader used for grading <br />Production Calculations <br />Reference - Caterpillar Performance Handbook <br />D9L-U Unadjusted production for 150' average push-1250 LCY/hr. <br /> <br />780-141 Revised 02/20/87 <br />