Bonneville FGE Gatewell Improvement
The project included concrete demolition via hydro-demolition, and installation of a new concrete corbel in the Gatewells of Powerhouse 2 intake bays.
VIEW PROJECTColumbia River Intake Screen Upgrade
This project occurred during the 2020-2021 Columbia River in-water work window.
VIEW PROJECTIce Harbor Headcover Oil Water Separator
Ice Harbor Dam Headcover and Oil Water Separator Project consisted of installation of a stainless steel header pipe that will carry oil-in-water from each power unit to the sump room where three Gravity Oil Water Separators
VIEW PROJECTSmith Intake Gate and Hoist Refurbishment
This project for Eugene Water and Electric Board (EWEB) included the complete removal, refurbishment and select replacement of the mechanical and electrical equipment.
VIEW PROJECTStillguamish Permanent Fishway - Design / Build
VIEW PROJECTHoward Hanson Dam Spillway Gates Retrofits
Howard Hanson Dam project consists of retrofitting 2 spillway gates.
VIEW PROJECTBonnveille Dam Powerhouse Oil / Water Separator
The work consisted of the installation of two new oil water separators in the existing ice and trash chute at Bonneville Dam Powerhouse II
VIEW PROJECTMcNary Headcover Oil Water Separator
The scope of this contract consisted of installing Adaptek Disc Pumps with vertical base mount and VFD drive.
VIEW PROJECTLower Granite PIT Tag
This $7 million project consisted of designing and installing 11 new PIT Tag monitoring antennas into the existing spillway ogee.
VIEW PROJECTMcNary Precipitron Replacement
VIEW PROJECTDetroit Dam Tainter Gate Rehabilitation
The work consists of the rehabilitation of 6 spillway gates.
VIEW PROJECTWilsonville WWTP Outfall
This $1.25 million project included removing the existing damaged outfall and installing a new 42” diameter concrete coated welded steel pipe outfall with 5 port diffusers.
VIEW PROJECTLittle Goose Dam - Pump Replacement
The work consisted of replacing the drainage and unwatering pump systems with associated piping and motor control centers in the drainage gallery of all the power generating units.
VIEW PROJECTNorthport Bridge Repair
This project involved the repair of existing bridge anchorages at two piers, removal of an expansion joint gutter system and installation of a new rain water diverter system.
VIEW PROJECTLucky Peak Maintenance Hoist
This Design-Build project required design, fabricate and installing dual hoist (15-TN each) wheeled trolley crane that runs on the existing emergency gate hoist rails.
VIEW PROJECTFoster Dam Crane Demolition
This project required the demolition of a concrete gantry crane atop Foster Dam in Sweet Home, Oregon.
VIEW PROJECTLittle Goose Dam – Fish Ladder
VIEW PROJECTCle Elum Lake Fish Passage
VIEW PROJECTLittle Goose Dam - Booms and Barriers
NCM performed work at Little Goose Lock and Dam that included the installation of a boat barrier system and trash shear boom above the dam.
VIEW PROJECTHood Canal Bridge Rehab
Hood Canal connects the Olympic and Kitsap Peninsulas. At 7,869 feet (2,398.5 m) long, (floating portion 6,521 feet (1,987.6 m)) it is the longest floating bridge in the world located in a saltwater tidal basin, and the third longest floating bridge overall.
VIEW PROJECTLower Monumental Navigational Lock Tainter Valve 4
The scope of this contractor was isolated to the Lower Monumental Dam’s Navigational Lock Tainter Valve No. 4.
VIEW PROJECTThe Dalles US Gate Replacement
The Dalles Navigational Lock Upstream Gate Replacement, Controls Upgrade, and Downstream Gate Gudgeon Replacement was awarded to Northbank on a best value basis.
VIEW PROJECTBonneville Lock and Dam Lamprey Passage
VIEW PROJECTPort of Vancouver Terminal 1 - Emergency Dock Repair
Replace deteriorated pile caps and stringers at Terminal 1.
VIEW PROJECTFall Creek Fish Facility
This purpose of this project is to upgrade the existing water piping that supplies the Fall Creek Adult Fish Collection Facility.
VIEW PROJECTSwiftcurrent Creek
The short, 6-week long first season removed the 75-foot long, five span concrete deck bridge built in the 1930’s, and replaced it with a single span precast hollow core slab design.
VIEW PROJECTOak Street Fish Ladder
This project consisted of demolition and removal of an existing reinforced concrete fish ladder and portion of an existing reinforced concrete diversion dam, spillway and headworks.
VIEW PROJECTLookout Point Tainter Gate Rehabilitation
Lookout Point, located on the Middle Fork Willamette River, has five spill bays controlled by Tainter gates.
VIEW PROJECTMcNary Fish Pump #2 Repair
VIEW PROJECTLower Monumental JFF Barge Dock Coffer Cell Repair
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