HARBOR SYSTEM MASTER PLAN - City and Borough of Sitka

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ones utilize 100 watt lamps. The lighting system is controlled by Photoelectric cells mounted at each main distribution panel where the lighting circuits originate. Communications: With the original facility, a two inch conduit was installed from a shore-side telephone pedestal to the approach dock, and down the gangway to the gangway float. The conduits are now occupied with telephone cables. Television and telephone cables are also strapped to the sides of the conduits. No provisions were made with the original floats for communications cables. Cables have subsequently been installed along the float walers to designated vessel slips. All services utilize individual cables. Findings The electrical systems have supported Sealing Cove Harbor for approximately 28 years. Given their age, the systems are in good condition overall. Power Distribution: Utility Transformers: Pole type transformers are not intended or constructed to sit on pads. Although the transformers were not viewed at the time of inspection, similar situations indicate that the bases of the transformer tanks are corroded. They have a remaining life expectancy of less than five years. Services: The current National Electrical Code requires main disconnects and circuit protection for the service feeder on shore. There are none with this facility. The NFPA 303 also requires an “Electrical Datum Plane” benchmark installed on shore, preferably near the service equipment. There is none at this facility. The feeder to the main distribution panel P2 from the utility transformer is undersized. See the comments regarding loads later. The cables and conduits are in good condition. The conduits beneath the Approach Dock are in good condition, while those on the gangways are in fair condition, requiring some maintenance. The junction boxes beneath the approach docks are in poor condition. Main Distribution Panels: The panels are appropriately rated for the conditions. However, they are constructed of plain steel with paint, thus susceptible to corrosion. The circuit breakers are currently still manufactured and they are thus replaceable. The panels are currently in fair to good condition with five years of service life remaining. Most, if not all of the shore-tie pedestal feeder circuit breakers are under rated. See the comments regarding loads later. 136 Sitka Harbor System Master Plan Condition Inventory
The main distribution panel support structures are in good condition with more than five years of service life remaining. Wireways beneath the panels are non-metallic with steel end plates. The end plates are corroded and need to be replaced. Shore-tie Pedestal Feeders: All of the Type W cables are in good condition with 15 to 20 years of service life remaining. However, some of the feeders are not adequately sized in accordance to the current National Electrical Code. See the comments regarding loads later. Shore-tie Pedestals: Most of the pedestal enclosures are in fair to good condition. Many of those installed on the B, C, & D Head Walks are bent at the base, or mostly pulled from their deck mounting. This is due to vessels hitting the bullrails and forcing the pedestal posts from their mounts. Although the internal components (circuit breakers and receptacles) are predominantly in good condition, they have reached their service life. Loads: The feeders and distribution equipment for this harbor were sized in accordance to state standards in force when the harbor was designed. The National Electrical Code now requires the equipment and feeders to be sized according to the shore-tie pedestal receptacle ratings as stipulated by the code, which is much greater than the past state standards. As a result, some of the feeder cables and the main distribution panel P2 are now undersized. The following table illustrates the current disparity (The current capacity only illustrates the capacity of the cables. In most circuits the circuit breakers are smaller, further reducing capacity): Feeder (KVA) Current Capacity (KVA) Required Capacity Head Walk A Pedestals No Head Walk B – Feeder 1 34.8 51.2 Head Walk B – Feeder 2 34.8 54.8 Head Walks C & D – Feeder 1 25.6 32.9 Head Walks C & D – Feeder 2 25.6 29.2 Head Walks C & D – Feeder 3 25.6 29.2 Head Walks C & D – Feeder 4 25.6 29.2 Head Walk E – Feeder 1 25.6 25.1 Head Walk E – Feeder 2 25.6 20.9 Head Walk E – Feeder 3 25.6 25.1 137 Sitka Harbor System Master Plan Condition Inventory
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CITY AND BOROUGH OF SITKA, ALASKA H
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PART I SITKA HARBOR SYSTEM CONDITIO
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TABLE OF CONTENTS
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SECTION 1—EXECUTIVE SUMMARY
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consistent maintenance procedures,
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CITY AND BOROUGH OF SITKA HARBOR SY
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SECTION 2—HARBOR FACILITIES CONDI
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hinge connection assemblies are ext
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Timber Mainwalk Float Rotten Timber
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7 C Y T I D E C E N A D M E B TIDAL
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Sitka Harbor System Master Plan Con
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THOMSEN HARBOR Thomsen Harbor was o
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17 Sitka Harbor System Master Plan
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2 THOMSEN HARBOR IN-KIND REPLACEMEN
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SEALING COVE HARBOR Sealing Cove Ha
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SEALING COVE HARBOR PHOTOGRAPH LOG
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3 SEALING COVE HARBOR IN KIND REPLA
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ELIASON HARBOR Eliason Harbor, once
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ELIASON HARBOR PHOTOGRAPH LOG Vehic
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4 ELIASON HARBOR IN KIND REPLACEMEN
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ANB HARBOR ANB Harbor was designed
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ANB HARBOR PHOTOGRAPH LOG Timber Ap
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5 ANB HARBOR IN KIND REPLACEMENT BU
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THOMSEN HARBOR BREAKWATER FLOAT The
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C Y T I D E C E TIDAL DATA EHW EHT
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O’CONNELL BRIDGE LIGHTERING FLOAT
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C Y T I D E C E TIDAL DATA EHW EHT
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CRESCENT HARBOR LIGHTERING FLOAT Th
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C Y T I D E C E RUBBLE MOUND BREAKW
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FISHERMAN’S WORK FLOAT The Fisher
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FISHERMAN’S WORK FLOAT PHOTOGRAPH
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9 FISHERMAN'S WORK FLOAT IN KIND RE
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FISH CLEANING FLOAT PHOTOGRAPH LOG
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10 FISH CLEANING FLOAT IN KIND REPL
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CRESCENT HARBOR BOAT LAUNCH RAMP PH
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11 CRESCENT HARBOR BOAT LAUNCH RAMP
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. SEALING COVE HARBOR BOAT LAUNCH R
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12 SEALING COVE HARBOR BOAT LAUNCH
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CRESCENT HARBOR HIGH LOAD DOCK & NE
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C Y T I D E C E CRESCENT HARBOR MOO
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BOAT GRID The Sitka Boat Grid was o
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Grid Timbers Rotted Pile Top Access
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14 BOAT GRID IN KIND REPLACEMENT BU
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MARINE SERVICE CENTER PHOTOGRAPH LO
Page 95 and 96: 15 MARINE SERVICE CENTER BULKHEAD I
Page 97 and 98: SEAPLANE FLOAT PHOTOGRAPH LOG Seapl
Page 99 and 100: 16 SEAPLANE FLOAT IN KIND REPLACEME
Page 101 and 102: Sitka Harbor System Master Plan Upl
Page 103 and 104: Purpose and Scope This report prese
Page 105 and 106: Sealing Cove Harbor Restrooms #1 Lo
Page 107 and 108: O’Connell Bridge Lightering Float
Page 109 and 110: ANB Harbor Restroom #3 Location: AN
Page 111 and 112: Thomsen Harbor Harbor Department Of
Page 113 and 114: Sitka Harbor System Master Plan Con
Page 115 and 116: Figure 18. Site conditions. Figure
Page 117 and 118: Figure 22. Site conditions. Figure
Page 119 and 120: SECTION 4—ELECTRICAL CONDITION IN
Page 125 and 126: Eliason Harbor Existing Systems The
Page 127 and 128: The “generic” shore-tie pedesta
Page 129 and 130: Findings As noted above, the electr
Page 131 and 132: The terminal box is mounted to a ga
Page 135 and 136: 7. The shore-tie pedestals in this
Page 137 and 138: ANB Harbor Sitka Harbor System Mast
Page 139 and 140: The finger floats include shore-tie
Page 141 and 142: Boat Grid Katlian Street Existing S
Page 143 and 144: Seaplane Float Katlian Street Sitka
Page 145: The shore-tie pedestals were manufa
Page 149 and 150: Renovate all of the shore-tie pedes
Page 151 and 152: The panel board is a 200 ampere, si
Page 153 and 154: Recommendations The following items
Page 155: PART II MOORAGE RATE RECOMMENDATION
Page 158 and 159: 1.1 Sitka Harbor Facilities .......
Page 160: The City and Borough of Sitka (CBS)
Page 163 and 164: Sitka’s harbors have 1,126 perman
Page 165 and 166: Operating revenues Fiscal Year 2007
Page 167 and 168: Yacht Reserved Moorage Revenue ($1,
Page 169 and 170: This section presents our moorage r
Page 171 and 172: It is our understanding that the ha
Page 173 and 174: Required Permanent Annual Moorage R
Page 175 and 176: Working Fund Balance (Millions of $
Page 177 and 178: Inflation Rate (%) Annual Rate Incr
Page 179 and 180: Figure 6 shows a history of raw fis
Page 181 and 182: CBS collects a fish box tax from ch
Page 183 and 184: Harbors Permanent Annual Transient
Page 185 and 186: fewer through the provision of tech
Page 187 and 188: Alaska Department of Fish & Game (A
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HARBOR SYSTEM MASTER PLAN - City and Borough of Sitka

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