Undergrounding Utilities in Residential Areas. April 18, 2012 Presented to City Council

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1 Undergrounding Utilities in Residential Areas April 18, 2012 Presented to City Council

2 Undergrounding Utilities in Columbia Completed Streetscaping Projects Gervais Street Harden Street / Five Points Lady Street Main Street Two Notch Road (SCDOT Project with City Participation) North Main Street Phase 1A Phase 1B

3 Undergrounding Utilities in Columbia Incomplete Streetscaping Projects Main Street Between Hampton and Elmwood Harden Street Between Gervais and Calhoun North Main Street Phase 2 and 3 (TIGER Grant Application Submitted, Awaiting Response) North Main Phase 4 and 5 Assembly Street Between Elmwood and Rosewood: SIB Grant Submission Pending USC Project Approaching Construction (between Blossom and Pendleton)

4 Challenges Above Ground Utilities Involved SCE&G and Mid Carolina Electric Primary Lines Transmission and Distribution Three Phase and Single Phase Service Lines Telecommunications (Above and Below) Cable Television (Above and Below) Fiber Optic (Above and Below)

5 Challenges (continued) Other Infrastructure Underground Water Wastewater (Sewer) Storm Drainage Gas Communication (if Underground) Trees (Roots) Construction Inconveniences

6 Cost Estimate for City Sample Area A Hagood Ave and Gladden St from Kershaw St to Canterbury Ave 73 Properties Impacted Estimate: $2,568,328 Cost Estimate for City Sample Area B Heyward St and Enoree St from Saluda Ave to Pickens St 44 Properties Impacted Estimate: $1,562,917

7 Sample Area A: Hagood and Gladden from Kershaw to Canterbury Sample Area A: 73 Properties Impacted Cost of $2,568,328

8 Sample Area B: Heyward St to Enoree St from Saluda Ave to Pickens Sample Area B: 44 Properties Impacted Cost of $1,562,917

9 Residential Power Transformer (~3 x 3 x 3 ) Located Every Three to Five Houses

10 Residential Power Switchgear

11 Residential Power Switchgear (~6 x 6 x 4.5 ) Enables Conversion of Three Phase to Single Phase Located Approximately Every One to Two Blocks

12 Funding Considerations Non-Standard Service Fund (in franchise agreement) Funding has Been Used on Major Corridors in the Past Funds are Expended for the Next Ten Years City Resources Tight Budgets, Tough Economic Times Public / Private Partnerships Models from Other Areas of the State

13 Public / Private Partnerships in Other Areas Charleston Program 50 / 35 / 15 Percent Split Between SCE&G (Non-Standard Service funds), City and Citizens Respectfully Process: Citizens Initiate Petition to Designate Area as Underground Service District District Designation Approved by City Council Detailed Design Documents are Produced for Construction Purposes Citizens Obtain Signatures Acknowledging Financial and Other Related Obligations Associated with Approval to Move Forward (per Month Amount to be Charged on Monthly Power Bill for a Period Not to Exceed Ten Years and Amount Not to Exceed 7% of Monthly Bill) Requires Signature Representing 2/3 of properties and 2/3 of the Appraised Property Value in Designated Area Requires Service Lines and Street Lighting Costs to be Covered by Property Owners Completed 3 Projects (2 Semi-Suburban with Large Lots and One Causeway) 2 Projects at Various Stages of Design (One is One Block, One is Combined Use Historic District) 3 on Waiting List -Only Two Projects Worked on at One Time

14 Public / Private Partnerships in Other Areas Greenville Program Funding from Portion of Franchise Fee, Portion Identified for Undergrounding is Split 80/20 Between Commercial and Residential Areas Program Buries Service Lines Only (not Distribution Lines) 50 / 50 Split Between Duke and City up to $1500 and the Citizen Pays the Remaining Balance, if any. (City Pays $300 Meter Change Out if Applicable.) 2000 Petitions to Date, Looking at Revamping Program to Incorporate Group of Homes in Lieu of Individual Requests Many Folks Have Chosen Not to Take Advantage of Program Due to Concerns Regarding Impact to Trees and Other Utilities that are Not Participating in Program (Telecommunications and Cable) Limited Funding per Year, Have to Prioritize Based on # (%) Petitions per Area Program Initiated as Direct Result of Ice Storm and Extended Power Outages Due to Downed Tree Limbs

15 Charleston Model for City Sample Area A HagoodAve and Gladden St from Kershaw St to Canterbury Ave 50 / 35 / 15 percent split Number of Properties Served: 44 Cost of Project: $1,562,917 SCE&G Portion: $781, (Non-Standard Service Fund) City Portion: $547, Citizen Portion: $234, Citizen Estimated Amount for Ten Year Period: $26.76 per Month (Likely Exceeds Allowed Amount of 7% of Bill)

16 Charleston Model for City Sample Area B Heyward St and EnoreeSt from Saluda Ave to Pickens St 50 / 35 / 15 Percent Split Number of Properties Served: 73 Cost of Project: $2,568, SCE&G Portion: $1,284, (Non-Standard Service Fund) City Portion: $898, Citizen Portion: $385, Citizen Estimated Amount for Ten Year Period: $43.97 per Month (Likely Exceeds Allowed Amount of 7% of Bill)

17 Questions / Comments