Updated Copy February 13, 2018.pdf
PDF 1 MB Posted
- Solicitation number
- RFQ 171 190000000673 3
- Issued by
- Alcona County, Michigan
About this file
This is a Tower Stair and Electrical Systems Assessment Study prepared for the State of Michigan Department of Technology, Management and Budget in conjunction with the Department of Natural Resources Parks and Recreation Division for the Sturgeon Point Lighthouse located in Harrisville, Michigan. The assessment was conducted by WTA Architects and completed on February 13, 2018 (File No. 751/16464.SMD, Index No. 51023, WTA Project No. 2016078). The study evaluates three primary systems: tower brick spalling, structural integrity, and electrical systems. The assessment identifies existing electrical infrastructure including separate metering for the lighthouse and keeper's quarters, a 60-amp service for the lighthouse with multiple circuit panels, a 1kW transformer powering the Fresnel lens lamp, and original cloth-jacketed wiring throughout the structures.
The assessment provides detailed recommendations for electrical upgrades and safety improvements. Critical recommendations include replacing the Push-O-Matic panel and original fuse box in the keeper's quarters, which would require opening walls to eliminate cloth-jacketed wiring and install modern grounded receptacles. Additional recommendations address re-supporting existing Romex and metal clad wiring to meet code, installing proper fittings in the upper tower panel, placing the 40-amp outbuilding feed within conduit, and installing a new exterior receptacle to eliminate extension cord usage. For lighting, the study recommends retaining existing time-appropriate fixtures while upgrading to LED technology, including LED screw-in lamps and new LED track lighting for historical artifact displays. The Opinion of Probable Cost section spans pages 26-28 of the document.
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Other files
| File | Type | Posted |
|---|---|---|
| AD-1 Final PDF.pdf | ||
| Specifications 16464.pdf | ||
| Scan Sep0419sturgeon.pdf | ||
| 16464-Addendum1.pdf | ||
| Plans 16464.pdf | ||
| Advertisment 16464.pdf |
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Text version
Phase 100 – Tower Stair and Electrical Systems Assessment Study
For
State of Michigan
Department of Technology, Management and Budget/ Department of Natural Resources
Parks and Recreation Division
To
Sturgeon Point Lighthouse
Harrisville, Michigan
File No. 751/16464.SMD
Index No. 51023 WTA Project No. 2016078
February 13, 2018
Prepared By:
WTA Architects 100 S. Jefferson Avenue; Suite 601
Saginaw, Michigan 48607
TOWER STAIR AND ELECTRICAL SYSTEMS ASSESSMENT STUDY
STURGEON POINT LIGHTHOUSE
Table of Contents
Tower Brick Spalling ...............................................................................Page 2 to 11
Structural ..................................................................................................Page 12 to 16
Electrical ..................................................................................................Page 17 to 25
Opinion of Probable Cost.........................................................................Page 26 to 28
Electrical
Observations:
Power:
The existing lighthouse and keeper’s quarters are metered separately. See photos 19 and 20. The lighthouse has a 60 amp., 120/240-volt service. The service is routed outside along the exterior wall and into the back of the main panel. This main panel is in the entry of the lighthouse between the keeper’s quarters and the lighthouse tower. See photo 21. Located at the base of the lighthouse tower is another (6) circuit panel that feeds the tower lights and a second upper (2) circuit panel. Located here at the tower base is also a 1kw, 95-
130-volt input to 120-volt output transformer that is believed to power the Fresnel lens lamp. See photo 22.
The (2) circuit panel in the upper tower is operational and currently powers the 120-volt receptacle and the existing NOAA power supply, which powers their weather equipment. See photo 30.
The keeper’s quarters are equipped with an old-style Push-O-Matic panel. See photo 23. This panel feeder is routed from the meter within the crawl space and then up through the floor to the panel. See photo 24. This panel feeds the entire keeper’s quarters. It backfeeds an existing fuse box with (4) fuses. See photo 31. These
(4) fuses then power most of the circuits in the keeper’s quarters. The Push-O-Matic also powers the museum outbuilding located to the west of the keeper’s quarters with a 40 amp, 120/240-volt breaker. There is an exterior pole mounted light that is also powered from the keeper’s quarters. See photo 25.
The existing wiring appears to be a variation of original cloth jacketed type “NM” which is believed to still be located in all walls. There is also some newer PVC jacketed Romex wiring, which was probably installed around the same time the Push-O-Matic panel was installed. See photos 26 and 27. This wiring is present in the crawl space and attic space where there is accessibility. There is also “MC” flexible metal clad wiring located in the attic, which is then spliced to the existing wiring to the second-floor lights and to wiring that is in the walls of the second floor. In general, any space that was accessible appears to have had newer wiring installed at some point in time, but the existing wiring that is still located within the lathe and plaster walls is probably cloth jacketed Romex-type wiring.
Lighting:
The existing lighting is very minimal throughout both the lighthouse and the keeper’s quarters. Most of the lights are time appropriate, but some new track lighting has been installed where historical artifacts are on display.
Recommendations:
Power:
Although all the panels in both the lighthouse and keeper’s quarters show signs of aging, the most critical ones to replace would be the Push-O-Matic and the original fuse box, which are in the keeper’s quarters. The Push-
O-Matic panel should be a simple replacement, but that is not the case for the fuse box. The fuse box is recessed in the existing lathe and plaster wall, and all four circuits coming from this box are located within the walls. To eliminate the cloth jacketed wiring, the walls would need to be opened up. The fuse box could then be eliminated or saved and abandoned in place, if deemed a historical value. All circuits would then have to be extended over to the new panel that will replace the Push-O-Matic. The wiring from the receptacles, switches, and lights located in the keeper’s quarters would also need to be replaced, meaning walls and ceilings would have to be channeled and patched once new wiring is installed.
It is important to note that once new wiring is installed, new grounded receptacles could be installed to replace the existing non-grounded receptacles.
Other less obtrusive recommendations are as follows:
• Re-support/secure all existing Romex or “MC” wiring to meet code. See photo 27.
• Install proper fitting in upper tower panel for the branch wiring. See photo 28.
• The outbuilding 40-amp feed should be installed within conduit. See photo 29.
• Install a completely new exterior receptacle to avoid using extension cords during events.
Lighting:
The existing time appropriate light fixtures should remain, but newer screw-in LED lamps could be installed.
The existing track lighting could be replaced with newer LED type track lighting. LED is a great source of light to display items and the smaller fixture sizes are visually less noticeable.
Photo 19
Photo 20
Photo 21
Photo 22
Photo 23
Photo 24
Photo 25
Photo 26
Photo 27
Photo 28
Photo 29
Photo 30
Photo 31
| Cover Page 2.13.18.pdf |
| Revisions 2-18-18.pdf |
File details come from the government source that posted it. Updated .