Portfolio: STRUCTURES

Yakima County Overlays

Owner: WSDOT
Location: Yakima County Wa
Project Size: $1,500,000
Project Category: Bridge Rehabilitation, Overlays
Description:

Conway Construction completed the concrete bridge overlays of two bridges in Yakima County within the 50 working day construction schedule by performing work 6 days a week, often employing two shifts a day.

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I-84 Traffic Barrier Upgrades

Owner: ODOT
Location: Hood River, Wasco, Sherman and Gilliam Counties
Project Size: $2,560,000
Project Category: Bridge Rehabilitation, Civil
Description:

Conway Construction rehabilitated 5 bridges by removing the existing concrete railing, installing a CFRP deck strengthening system to the overhangs, installing Concrete F Rail Retrofit and installing bridge fencing. In addition, Conway performed guardrail modifications at 101 sites stretched across 86 miles.

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2014 BRRP 15th Ave West Interchange Project

Owner: City of Seattle
Location: Seattle, Wa
Project Size: $1,500,000
Project Category: Microsilica Overlay, Bridge Rehabilitation
Description:

15th Ave is a vital link to the Ballard District. Minimization of traffic impacts was a top priority for the City. CCC addressed this priority limiting closures and accelerating the work CCC safely removed the existing girder and set the new girder in one weekend with 2 night closures. CCC accelerated the work, finishing the project 20 working days faster.

Clink the link below to watch a 2 minute Video of the project produced by the Seattle Department of Transportation:

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US 101: Pistol River Bridge Rehabilitation

Owner: ODOT
Location: Pistol River, OR
Project Size: $5,000,000
Project Category: Cathodic Protection, Bridge Rehabilitation
Description:

Fifty years of exposure to the salt laden air of the rugged Pacific Ocean had taken its toll on the Pistol River Bridge rendering it seriously deficient. Conway Construction Company undertook this major bridge renovation and Cathodic Protection project in order the extend the service life of this vital link to the Southern Oregon Coast. Cathodic Repairs included removal and replacement of 1,100 sy of damaged concrete, repair of over 700 damaged reinforcing bars, elimination of discontinuous

reinforcing bars, removal of near surface metals, zinc annode installation, DC power distribution and remote monitor system wiring. In additional, CCC replaced the bridge bearings, replaced 1100 feet of concrete bridge rail, installed seismic restraints and installed a silica fume overlay. CCC redesigned the Agency's traffic control plan, setting a model for future projects and saving Oregon Tax Payers over $300,000. The project was significant as it was one of the first non-historic bridges in Oregon to receive Cathodic Protection and repairs in lieu of replacement.

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Goodpasture Covered Bridge Rehabilitation

Owner: Lane County
Location: Vida, OR
Project Size: $1,200,000
Project Category: Bridge Rehabilitation
Description:

The iconic Good Pasture Covered Bridge is the most photographed of its kind in Oregon. Conway Construction Company took on this challenging rehabilitation project which required temporary support of the structure via two 140' tubular steel trusses installed inside the bridge. CCC installed new truss splice plates, tuned and post-tensioned the trusses, replaced the timber deck and stringers, replaced the portal siding and replaced the bridge rail. CCC's sub-contractors painted the bridge and installed LED lighting to the exterior. With the exception of four single night closures, all of the work was done while under live traffic. The project was a success ensuring that the Good Pasture Bridge will remain an inspiration to photographers for years to come.

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I-5: Homestead to Gold Hill Bundle 313

Owner: ODOT/OBDP
Location: Gold Hill, OR
Project Size: $2,600,000
Project Category: Bridge Rehabilitation, Seimic Upgrades, Roadwork
Description:

Conway Construction Company performed repairs to five bridges, installed a 20' tall soil nail/cast in place concrete retaining wall with custom imprints, cast in place concrete barrier, drainage and roadwork. Bridge improvements included installing reinforced shear walls against the existing box girder stems from inside the box girder, seismic blocks, and FRP. CCC self performed installation and post tensioning of a reinforced concrete girder bridgefor this project. CCC completed the project in less than 6 months, 4 months ahead of schedule.

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N. Going St Bridge Rehabilitation

Owner: ODOT/City of Portland
Location: Portland, OR
Project Size: $2,300,000
Project Category: Bridge Rehabilitation, Seimic Upgrades
Description:

The North Going Street Bridge has been identified by the City of Portland as a vital economic link for the area. Through ODOT, the City contracted with Conway Construction Company to perform seismic upgrades and repairs to the bridge to ensure access to the Swan Island industrial area after a seismic event. CCC performed traffic control, removed the impact panels for drilled shaft placement, replaced the panels, installed resin bonded dowels for a new rebar deck mat, overlayed the entire bridge with microsilica concrete, installed two tube steel rail and pedestrian rail, removed the existing sidewalk from atop precast box girders and replaced the sidewalk with a 8' multi use lane.

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Cougar Creek Bridge Replacement

Owner: Clark County
Location: Washougal, WA
Project Size: $800,000
Project Category: Bridge Replacement, Road Construction
Description:

The Cougar Creek Bridge was a 26' timber span sitting on mortared rock abutments built in 1926 that had outrun its service life. Conway Construction replaced the existing bridge with a new 60' span that allowed for a wider roadway. In addition, the creek channel wasreturned to a natural state not possible with the narrow existing structure. In order to do this, CCC had to divert the Cougar Creek through a bypass during an in water work period. CCC also replaced the roadway approaches and installed drainage which included over 300 yards of rock excavation.

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OR 230/OR138: North Umpqua - Upper Rogue Bundle 560

Owner: ODOT
Location: Multiple Locations, Southern Oregon
Project Size: $2,600,000
Project Category: Bridge Rehabilitation, Road Construction
Description:

Conway Construction Company rehabilitated four bridges along the scenic Rogue River and Umpqua highways. Work included historic concrete bridge rail and cantelever removal and replacement, steel bridge rail installation, bridge jacking and bearing replacement, seismic strengthening, timber cap removal and replacement, crack injection, Silica Fume Overlay, drainage improvements and roadway improvements. CCC completed this challenging project on time by meeting challenging problems with creative solutions. For example, CCC found a way to place the second stage of the Silica Fume overlay in November at 4,000 feet elevation with nighttime freezing temperatures while meeting ODOT's stringent cold weather curing requirements.

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Usk Bridge: Major Maintenance

Owner: WSDOT/Pend Orielle County
Location: Usk, WA
Project Size: $1,100,000
Project Category: Bridge Rehabilitation, Bridge Overlay
Description:

At 2,281 feet long the Usk Bridge spans the Pend Orielle River one hour North of Spokane, WA. The length of the bridge coupled with the requirement to maintain one lane of traffic during construction posed significant logistical challenges. Conway Construction completed the work of hydrodemolition of the bridge deck, silica fume overlay, bridge joint replacement, damaged concrete repairs, wood pile splice and wood pile FRP wraps within the time allotted for completion. CCC performed the many silica fume placements at night to satisfy traffic restraints and environmental conditions. CCC performed the hydrodemolition next to live traffic, protecting the traveling public for flying debris. CCC processed over one million gallons of contaminated water resulting from the hydrodemolition of the bridge deck.

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Bridge #118, F-NE Road CRP 06-06

Owner: Grant County
Location: Soap Lake, WA
Project Size: $600,000
Project Category: Bridge Replacement
Description:

Conway Construction Company replaced a segmental Bailey Bridge over a canal in Central Washington with a 150' bulb tee girder for Grant County Public Works. The girders weighed close to 200,000 lbs each and required a detailed a technical picking plan which was successfully performed by CCC and its sub-contractor Axis Crane. CCC completed the contract within a 50 calender time frame beginning after the canal was drained in the fall.

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FY09 D6 Bridge Deck Repairs

Owner: Idaho Transportation Department
Location: Rigby, ID
Project Size: $1,330,000
Project Category: Bridge Rehabilitation, Bridge Overlay
Description:

With five bridge deck overlays in two stages each and 70 calendars days to complete the project, its no wonder we didn't have time to take pictures. CCC self performed the hydro-demolition, silica fume overlay and incidental bridge repair on this project.

Contact

CONWAY CONSTRUCTION COMPANY
6620 NW Whitney Rd, Suite 100
Vancouver, Washington, 98665 USA