The Cost of Rehabilitating Our Nation's Dams. A Methodology ...

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adding all the costs in the total cost column. Copies of the complete logic diagrams are containedin Attachment 1.In 2003, a review and update of the existing methodology resulted in the following revisions:25% cost escalation factor to deferred maintenance and remedial actions to dams withoutmaintenance25% cost escalation factor plus a one‐time 15% premium for rehabilitation of dams withdeferred maintenance Adjusted Phase 2 engineering costs by 67%Cost of remedial action will include design, construction, permitting, EAP, constructionmanagement and any land acquisition costsAll federally‐owned dams were excluded from cost numbersAll non‐federal dams were included (states with existing funding programs were includedin final totals)Assignment of NID condition assessments to algorithm outputs (satisfactory, fair, poor,unsatisfactory)ResultsUsing this formula, it was estimated that it would cost approximately $51.46 billion to rehabilitateall non‐federally owned dams in the U.S. identified as needing rehabilitation in 2009. Additionalfunding would be required for state and federal administrative costs.14
SummarySize‐Based Category Percent of Dams in Cost Estimate Per Total CostNeed of RehabRehabProjectCategory #1
Page 1: THE COST OFREHABILITATINGOUR NATION
Page 5 and 6: EXECUTIVE SUMMARY• There are appr
Page 7 and 8: In many cases, owners of dams that
Page 10 and 11: Some states have established innova
Page 12 and 13: The 2009 UpdateIn the spring of 200
Page 14 and 15: Hazard potential reclassificationPh
Page 18 and 19: IMPROVING ASSISTANCE AT THE STATE L
Page 20 and 21: DredgingEnhancements to hydropower
Page 22 and 23: Allowable project costs: Defines th
Page 24 and 25: NEED FOR A FEDERAL ASSISTANCE PROGR
Page 26 and 27: ATTACHMENT 1 ‐ FORMULASDams By Ca
Page 28 and 29: equire remedial action (B)(H)(M)(X)
Page 30 and 31: Earth Dams Equal to 15 Feet and Les
Page 32 and 33: Earth Dams Greater than 50 Feet in
Page 34 and 35: (2) by redesignating paragraphs (1)
Page 36 and 37: `(2) 2/3 divided among applying Sta
Page 38 and 39: ATTACHMENT 3 - STATE DAM LOAN/GRANT
Page 40 and 41: on the anticipated annual national
Page 42 and 43: dam owners. To be eligible for thes
Page 44 and 45: ATTACHMENT 4 - MODEL LAW FOR STATE
Page 46 and 47: Chapter 3. General ProvisionsArticl
Page 48 and 49: Chapter 4. Administrative Provision
Page 50 and 51: that the ranking is relative rather
Page 52: Association of State Dam Safety Off

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