Great Lakes Waterways Conference · Consideration of future maintenance/potential repair...
Transcript of Great Lakes Waterways Conference · Consideration of future maintenance/potential repair...
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US Army Corps of EngineersBUILDING STRONG®
Great Lakes Waterways Conference
February 9, 2016
David WrightU.S. Army Corps of EngineersChief of Operations – Detroit District
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BUILDING STRONG®
Agenda
FY16/FY17 PBUD Maintenance Work
Recent Soo Lock Component Condition Issues
Soo Locks Asset Renewal Status
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FY16 PBUD Dredging Projects
Duluth-Superior Ontonagon Presque Isle Green Bay Manitowoc St. Joseph Holland Grand Haven
Muskegon Ludington Manistee Saginaw River Rouge River
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FY16 PBUD Structure Repairs
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Preventative Maintenance by Gov’t Plant:Duluth-Superior Harbor (Superior Entry North
Pier) Two Harbors Milwaukee St. Marys River Rock Cut
Contract Repairs:Muskegon Harbor (north breakwater head)
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FY17 PBUD Dredging
Duluth-SuperiorChannels Lake St. ClairDetroit RiverGreen BaySt. JosephHollandGrand Haven Saginaw River
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BUILDING STRONG®
Agenda
FY16 Maintenance Dredging
Recent Soo Lock Component Condition Issues
Soo Locks Asset Renewal Status
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2015 MacArthur Lock Outage Problems with mitering of upstream operating gates
resulted in need to replace gate anchorages
Lock taken out of service from July 29th to August 17th
139 Vessels Delayed With estimated 260 delay hours (all vessels had to transit the Poe Lock)
$865,000 Estimated Cost to Navigation Industry
Failure to address issue could have resulted in catastrophic failure
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Dewatered MacArthur Lock Chamber
Required to facilitate repairs
Required placement of upstream dewatering bulkheads
Typically don’t dewater until winter shut down to avoid impact to navigation
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Divers Chinking Bulkheads to Reduce Seepage into Dewatered Chamber
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Jacking the Gate to Remove Load from the Anchorage
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Removing Old Gate Anchorage Pins
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Removing Old Gate Anchorage Links
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Boring Embedded Gate Anchorage & Installing New Bushings
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Installing New Anchorage Link
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Installing New Gate Anchorage Pin
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Finished Gate Anchorage Assembly
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Restressing the Gate & Reattaching Grease & Electric Lines
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Rewatering the Lock
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SOO LOCKS Poe Lock Miter Gates
Embedded Anchorages
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Typical Poe Lock Embedded Anchorages
Typical Primary Poe Lock Embedded Anchorage
Typical Secondary Poe Lock Embedded Anchorage
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SOO LOCKS Miter Gate Embedded Anchorage
Risk Summary The miter gate embedded anchorages were studied as part of
ongoing Soo Locks major rehabilitation analyses The study has led to more detailed modelling that revealed that
there is near-term risk to the Anchorages Strain Gauging was performed that showed actual loading to be
higher than design and modeled loads The Life Cycle Analysis using actual loads show that the
anchorages have exceeded their design life Poe embedded anchorages are fracture critical with no
redundancy MacArthur Lock embedded anchorages currently being evaluated
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Interim Risk Reduction Measures
Intended to reduce risk of a failure while permanent repair is pursued
Exposure of all embedded anchorage heads (completed)
Visual & Non-destructive testing of welds and materials (initial completed)
Routine visual and NDT monitoring (ongoing)
Installation of stiffener plates (ongoing)
Heating of pin plate (ongoing)
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Gate 3S Exposed Embedded Anchorages
Looking West
Looking NorthLooking East
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Gate 3S Weld Concerns: Visual Inspection, and ND Testing identified a 1.5” crack in the weld of the Gate 3S primary anchor.
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Crack In WeldSurface Pitting
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Stiffener Plate Installation
Soo welder installing stiffener plate
Template of stiffener plate
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Long Term/Permanent Repair
Design Ongoing by Corps’ Inland Navigation Design Center of Expertise
Meets current design criteria (loading, fatigue, materials) Minimize impact to navigation during installation Consideration of future maintenance/potential repair requirements
Identified as Part of District’s List of Critical Funding Needs for Consideration for Potential FY16 Funding Pots
Prepared for Summer 2016 Advertisement Should Funding be Received
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New Poe Anchorage
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Shear key provides shear resistance
Anchors provide overturning resistance
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Agenda
FY16 Maintenance Dredging
Recent Soo Lock Component Condition Issues
Soo Locks Asset Renewal Status
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Soo Locks Asset Renewal Long-Term Plan
Asset Renewal Plan will maximize reliability and reduce risk through 2035
$55.3M funded to date through FY15 New hydraulics, stop logs, utilities Compressed Air System Gate Anchor Bar Replacement Mac Lock Controls Replacement
Remaining key priorities Poe Miter and Quoin Block Replacement Poe Electrical Rehabilitation Poe Lock Gate 1 Replacement Pier rehabilitation
0
5
10
15
20
25
30
FY08 FY10 FY12 FY14 FY16 FY18Fu
ndin
g, $
M
Funded
Requirements
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Soo Locks Asset Renewal - Ongoing
MacArthur Lock Controls Replacement
Davis Dewatering Well Repairs
Soo Locks Complex Waterline Replacement
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MacArthur Lock Controls Replacement
Existing controls from original construction
No longer reliable, spare parts no longer available
Eliminate safety hazard by replacing 480v controls
Facilitate installation of valve to gate interlocks
> Contract ongoing & scheduled to be substantiallyComplete Spring 2016
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Lock Dewatering Well Repairs
Existing sluice gate valves 100 years old and experiencing severe leakage
Safety concern for workers accessing the wells to perform maintenance
Impacting ability to fully dewater a lock in a timely manner (critical in winter)
Bulkheads for Davis/Sabin Tunnels Installed Contract awarded for fabricating new sluice gates In-house install planned
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Soo Locks Complex Water Line ReplacementExisting highly corroded steel water line (1943) deteriorated and experiencing leakage
Waterline co-located with high power electric feeder cables within deep service tunnel
Water line located above high voltage electrical feeder lines and natural gas lines with spot corrosion
> Contract awarded to replace water line w/ work to beginSpring 2016
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Soo Locks Asset Renewal - FY16
MacArthur Lock valve bulkheads
Poe miter gate lifting pendants
West Center Pier repairs
Poe Lock electric system rehab
Poe Lock Gates 1&3 embedded anchorage replacement
E&D for Poe Lock miter/quoin block replacement
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FY16 PBUD Soo Locks Asset RenewalWest Center Pier Repairs
Moon Island
Project Location
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Soo Locks – West Center Pier Repairs
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Soo Locks – West Center Pier Repairs
Existing Condition Proposed Repair
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Soo Locks Asset Renewal - FY17 PBUD
West Center Pier repairs
Poe Lock miter/quoin block replacement
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BUILDING STRONG®39
GL Navigation Business Line ManagerMike O’Bryan – (313) 226-6444Marie Strum – (313) 226-6794
Shamel Abou-El-Seoud - Chicago Operations Chief(312) 846-5470
Josh Feldmann - Buffalo District Operations Chief(716) 879-4206
Dave Wright - Detroit Operations Chief(313) 226-3573
www.lre.usace.army.mil/greatlakes/navigation
Key Great Lakes Contacts
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Backup Slides
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FY16 Dredging Projects
Duluth-Superior Ontonagon Presque Isle Green Bay x Manitowoc St. Joseph Holland Grand Haven
Muskegon Ludington Manistee Saginaw River x Rouge River Manistique Monroe Alpena
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FY16 PBUD Structure Repairs
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Preventative Maintenance by Gov’t Plant: Duluth-Superior (Superior Entry North Pier) Two Harbors Milwaukee St. Marys River Rock Cut
Contract Repairs: Muskegon Harbor (north breakwater head) Grand Haven (south pier) Ludington (south breakwater head)
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Long Term/Permanent Repair
Design Ongoing by Corps’ Inland Navigation Design Center of Expertise
Meets current design criteria (loading, fatigue, materials) Minimize impact to navigation during installation Consideration of future maintenance/potential repair requirements
Funding to implement repairs included in FY16 funding pots
Advertise for contract repairs in Summer 2016, schedule currently calls for installation complete by March 2017
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Soo Locks Asset Renewal Long-Term Plan
Asset Renewal Plan will maximize reliability and reduce risk through 2035
$70.5M funded to date through FY16 New hydraulics, stop logs, utilities Compressed Air System Gate Anchorage Replacement Mac and Poe Electrical System Replacement
Remaining key priorities Poe Miter and Quoin Block Replacement Poe Lock Gate 1 Replacement Pier rehabilitation
0
5
10
15
20
25
30
FY08 FY10 FY12 FY14 FY16 FY18Fu
ndin
g, $
M
Funded
Requirements
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Strain Gauging was performed by Bridge Diagnostic Inc (BDI) to validate modeled loads. The results of the strain gauging showed actual loading to be higher than design and
INDC modeled loads
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Gate 3S Primary Anchor Weld Grinding and NDTWeld repair procedure prepared by INDC & implemented by Soo crew. Grinding of the existing
weld resulted in the development of shallow cracks in the weld and base metal. These were sanded out and eliminated. Crack repair preparation procedures are being altered to limit
shallow crack development during grinding.
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After initial grinding, visual inspection and NDT identified crack in base metal extended further than expected
Area ground for weld repair Magnetic Particle Testing