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HomeMy WebLinkAbout5.B.4. Approve Fuller Street LED Lighting from T.H. 169 to 10th Avenue• ~'~ CITY OF SHAKOPEE Memorandum TO: Mayor & City Council ~ ~ ~ ~ A ~ Mark McNeill, City Administrator FROM: Bruce Loney, Public Works Director SUBJECT: Approval of Fuller Street LED Lighting, from T.H.169 to 10th Avenue DATE: October 5, 2010 INTRODUCTION: Attached to this memorandum are cost estimates from Shakopee Public Utilities Commission (SPUC) on installing LED. street lights along Fuller Street, from T.H. 169 to 10th Avenue. The purpose of this agenda item is to have Council review the additional costs of LED lights and approve the additional cost for installing high efficiency lighting. BACKGROUND: On May 4, 2010, City Council approved a motion to install ten additional lights along Fuller Street, from T.H. 169 to 10th Avenue. These initial lights were to be 250-watt high pressure sodium lights on wood poles. During this time period, the City and SPUC have been discussing high efficiency lighting for the future, particularly along C.R. 101 and other areas of the City. SPUC's staff has investigated retrofitting existing cobra head high pressure sodium lights with high efficiency LED lights. Proposals have been received from companies that can retrofit these lights and attached to this memo are cost estimates for the LED lighting. It is being proposed by SPUC that they would be willing to split the cost for the LED lights in order to do an experimental project in this area. This would also include retrofitting existing lights along Fuller Street. The additional cost for LED lighting is estimated to be $6,550.00 and the proposal is for the City to pick up 50% of the cost and SPUC the other 50%. The total additional costs for the City would be $3,275.00 and the previous estimate for these ten lights was estimated to be $21,934.75. In addition, in order to meet safety requirements with the Mn/DOT project of installing pedestrian bridge and trail, three of the new lights will need to be break away fiber glass poles versus standard wood poles in this area. The additional cost for these break away poles is estimated to be $700.00 per pole, thus an additional $2,100.00 for these poles. Staff is requesting Council authorization to participate in the LED project, as well as to install break away poles, in which the total additional costs would be $5,375.00 and the funding source would be from the Capital Improvement Fund. ALTERNATIVES: 1. Approve a motion authorizing staff to install thirteen (13) LED street lights, from T.H. 169 to 10~' Avenue and with three (3) street lights to be break away poles, with funding from the Capital Improvement Fund. 2. Do not approve a motion authorizing staff to install thirteen (13) LED street lights, from T.H. 169 to 10~' Avenue and with three (3) street lights to be break away poles, with funding from the Capital Improvement Fund. 3. Table for additional information. RECOMMENDATION: Staff would recommend Alternative No. 1, to participate in the LED lighting project on Fuller Street and to install break away poles on Fuller Street to meet the safety requirements for the new trail along Fuller Street, from T.H. 169 to Vierling Drive. By partnering with SPUC on a new energy efficient lighting system, valuable information will be obtained on future lighting systems. ACTION REQUESTED: Ap~rove a motion authorizing staff to install thirteen (13) LED street lights, from T.H. 169 to 10 Avenue and with three (3) street lights to be break away poles, with funding from the Capital Improvement Fund. Bruce Loney, P Public Works Director BL/pmp ENGR/2009-PROJECTS/FULLER-STREET-TRAILSTREET-LEDLIGHTING SHAKOPEE PUBLIC' UTILITIES MEMORANDUM TO: John Crooks, Utilities Manager r ~ .,. FROIVI: Joseph D. Adams, Planning & En sneering Director ,? ~, ' ~.- ~~ ' ~°-•--m°~`" f` SUBJECT: Fuller Street Lighting Project DATE: September 30, 20'10 ISSUES. The street lighting installation was suspended earlier this year to investigate the potential use on this project of advanced lighting technologies, i.e.: LEI? light fixtures to demonstrate their potential for energy and maintenance savings. A second issue that came up on this project was. a conflict with the proposed street light pole material and clear zone requirements. on the south end of the project. BACKGROUND This project was approved by both the Utilities Commission and the City Council earlier this year with. the understanding that the .adopted standard streetlight for a collector street north of Highway 169 would be used,'i.e. a 250 watt HPS cobra head fixture mounted on a ten foot arm on a 40 foot wood.. pole. After the project was approved, the design was completed and installation of the woad poles commenced. During this time, Public Works Director Bruce Loney and staff began an exploratory discussion into whether or not this project could employ advanced lighting. technology as a demonstration project in the city. Also, it was discovered that the design location of the wood poles south of Vierling Drive did not meet the clear zone requirements for that section. due to a higher posted speed limit in that area. Alternative pole locations and materials were considered. We are now ready to present to the Commission and Council our findings on the added cost and benefits. to employ LED fixtures as a demonstration project and the solution to the clear zone issue. DISCUSSION We estimate the additional cost for LED fixtures at $400 each for the seven new lights that will have wood poles, using an LED retrofit kit in our standard cobra head fixture. That totals $2,800 for those seven lights. There are three existing 250 watt HPS lights on wood poles within the project area north of Vierling Drive. We estimate the additional cost for LED fixtures at $450 each for these three existing lights, using the same LED retroft kits. That totals $1,350 far those three lights. We estimate the additional cost for LED fixtures at $800 each for the three new lights on the proposed breakaway fiberglass poles south of Vierling Drive, using a substitute LED fixture compatible with the fiberglass poles. That totals $2,400 for those three lights. Thus, the total additional cost for all thirteen lights within the project area having LED fixtures is $6,550. We propose a 50/50 split of the added cost with the city, which would be $3,275 for both parties. The mutual benefit of having a demonstration project for advanced lighting technologies justifies the added cost in staff's opinion. This project will provide valuable real life experience with LED fixtures that could serve as replacement fixtures for many of the existing street lights in Shakopee. The reduced energy usage is approximately 50% compared to the standard HPS fxture. Both the city and the utility would be able to gather feedback from residents on the light levels (whiter and brighter) provided by these alternative lights in comparison to standard lighting in the city. Reliability of the LED technology would be ascertained over multiple years to gauge the long term maintenance, or lack thereof, claims by the manufacturers. To meet the clear zone requirements without moving the poles back beyond the trail, we propose to substitute the standard wood pole for a breakaway fiberglass pole. These poles are designed for higher speed roads and we have previously installed some at County Road intersections for that reason. We estimate the additional cost of breakaway fiberglass poles vs. standard wood poles at $700 each, for a total of $2,100 for the three poles south of the intersection. This extra cost would be picked up by the city. The original cost estimate for this project was $21,935 for ten new 250 watt HPS lights, with the cost being paid 100% by the city. Using a 50/50 split of the cost for the LED fixtures, the combined additional cost to the city for the LED fixtures and the breakaway poles would be $5,375. And the cost to the Utilities Commission for the LED fixtures would be $3,275. RECOMMENDATION Staff recommends the Commission approve the use of LED fixtures and the proposed 50150 cost split to do so with the city. Staff recommends the Commission approve the use of breakaway fiberglass poles in the area south of Vierling Drive to meet the clear zone requirements. REQUESTED ACTION Staff requests the Commission approve the use of LED fixtures and the proposed 50/50 cost split to do so with the city. Staff requests the Commission approve the use of breakaway fiberglass poles in the area south of Vierling Drive to meet the clear zone requirements.