HARBOR SYSTEM MASTER PLAN - City and Borough of Sitka

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SEAPLANE FLOAT The seaplane float was originally designed by the State of Alaska, Department of Transportation in 1962. Access to the seaplane float is provided by a 6-ft x 150-ft long timber approach trestle that intersects with Katlian Street. The approach trestle supports a 6-ft x 50-ft long steel gangway that lands on a 10-ft wide x 110-ft long main float. The main float provides transient moorage for approximately three seaplanes. Perpendicular to the main float is a 10-ft wide x 200-ft long float that provides moorage landings for up to eight seaplanes. Observations Approach Dock: The timber approach dock is weathered and at 50 years old and has exceeded its life expectancy. Gangway: The gangway is of lightweight construction and its length is short, however its components are in fair condition. The primary concern regarding the gangway is its length. 50-ft gangways are no longer permitted in new construction due to the steep gradient that is created during low tides. 80-ft minimum length gangways are required to meet current American Disabilities Act (ADA) standards. Floats: In general the timber floats are weathered and shows signs of age. There is no remaining preservative treatment visible on the timbers. The float freeboard is approximately 8-in. The galvanized coatings of the steel pipe piles above the tidal level are beginning to disappear and surface rust on the piles was observed. Conclusions Sitka Harbor System Master Plan Condition Inventory In general, the current overall condition of the seaplane float is fair to poor. The facility shows signs of age and is nearing the end of its useful design life. The seaplane float has an estimated remaining safe and usable service life of approximately 5 years. 88
SEAPLANE FLOAT PHOTOGRAPH LOG Seaplane Float Landing Landing Seaplane Float 89 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
Page 45 and 46: ANB HARBOR ANB Harbor was designed
Page 47 and 48: ANB HARBOR PHOTOGRAPH LOG Timber Ap
Page 49 and 50: 41 Sitka Harbor System Master Plan
Page 51 and 52: 5 ANB HARBOR IN KIND REPLACEMENT BU
Page 53 and 54: THOMSEN HARBOR BREAKWATER FLOAT The
Page 55 and 56: C Y T I D E C E TIDAL DATA EHW EHT
Page 57 and 58: O’CONNELL BRIDGE LIGHTERING FLOAT
Page 59 and 60: C Y T I D E C E TIDAL DATA EHW EHT
Page 61 and 62: CRESCENT HARBOR LIGHTERING FLOAT Th
Page 63 and 64: C Y T I D E C E RUBBLE MOUND BREAKW
Page 65 and 66: FISHERMAN’S WORK FLOAT The Fisher
Page 67 and 68: FISHERMAN’S WORK FLOAT PHOTOGRAPH
Page 69 and 70: 9 FISHERMAN'S WORK FLOAT IN KIND RE
Page 71 and 72: FISH CLEANING FLOAT PHOTOGRAPH LOG
Page 73 and 74: 10 FISH CLEANING FLOAT IN KIND REPL
Page 75 and 76: CRESCENT HARBOR BOAT LAUNCH RAMP PH
Page 77 and 78: 11 CRESCENT HARBOR BOAT LAUNCH RAMP
Page 79 and 80: . SEALING COVE HARBOR BOAT LAUNCH R
Page 81 and 82: 12 SEALING COVE HARBOR BOAT LAUNCH
Page 83 and 84: CRESCENT HARBOR HIGH LOAD DOCK & NE
Page 85 and 86: C Y T I D E C E CRESCENT HARBOR MOO
Page 87 and 88: BOAT GRID The Sitka Boat Grid was o
Page 89 and 90: Grid Timbers Rotted Pile Top Access
Page 91 and 92: 14 BOAT GRID IN KIND REPLACEMENT BU
Page 93 and 94: MARINE SERVICE CENTER PHOTOGRAPH LO
Page 95: 15 MARINE SERVICE CENTER BULKHEAD I
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 and 146: The shore-tie pedestals were manufa
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The main distribution panel support
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Renovate all of the shore-tie pedes
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The panel board is a 200 ampere, si
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Recommendations The following items
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PART II MOORAGE RATE RECOMMENDATION
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1.1 Sitka Harbor Facilities .......
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The City and Borough of Sitka (CBS)
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Sitka’s harbors have 1,126 perman
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Operating revenues Fiscal Year 2007
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Yacht Reserved Moorage Revenue ($1,
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This section presents our moorage r
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It is our understanding that the ha
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Required Permanent Annual Moorage R
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Working Fund Balance (Millions of $
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Inflation Rate (%) Annual Rate Incr
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Figure 6 shows a history of raw fis
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CBS collects a fish box tax from ch
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Harbors Permanent Annual Transient
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fewer through the provision of tech
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Alaska Department of Fish & Game (A
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HARBOR SYSTEM MASTER PLAN - City and Borough of Sitka

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