March 24, 2015
January 14, 2015
Sundt won the Build America Award in the Highway and Transportation Renovation category for its work on the West 7th Street Bridge in Fort Worth, Texas.
An innovative water treatment facility and an iconic bridge had something in common last week when they both won prestigious Alliant Build America Awards from the Associated General Contractors of America (AGC) at the AGC’s 96th Annual Convention in San Juan, Puerto Rico. Sundt won the Environmental Enhancement category for its work on the Ocotillo Brine Reduction Facility renovation construction project in Chandler, Arizona, and the Highway and Transportation Renovation category for the West 7th Street Bridge in Fort Worth, Texas.
Ryan Abbott, business development manager for Sundt’s projects in the Southwest, holds the award for the Ocotillo Brine Reduction Facility. To the right of Ryan is Tom Case, Sundt’s senior vice president for civil construction.
The $75 million Ocotillo Brine Reduction Facility project was completed in April of 2014. A global semiconductor manufacturer selected Sundt and Carollo Engineers, Inc. as the design-build team to reconstruct the water treatment plant, which supports the City of Chandler’s Reverse Osmosis Facility (CHRO) as it treats additional waste streams brought on by the manufacturer’s recently built Ocotillo Campus fabrication facility. The water treatment construction project included modifications to the existing CHRO influent pump station, a modified finished water pump station, a repurposed brine concentrator, sludge storage, a sludge dewatering facility with belt filter presses, repurposed brine evaporation ponds, chemical feed systems, electrical buildings and instrumentation, and supervisory control and data acquisition programming and upgrades.
Cade Reddig, Sundt project superintendent, holds the Build America Award for the West 7th Street Bridge. Standing to the right is John Carlson, Sundt’s Texas district manager. To the left of Cade is Chris Leintz, Sundt project engineer.
The West 7th Street Bridge connects downtown Fort Worth with the city’s thriving cultural district, and is the first structure of its kind in Texas. Its 12 precast, post-tensioned arches were built offsite and moved into place on either side of the existing bridge before it was demolished and reconstructed – in just 150 calendar days. The bridge construction project was completed a month ahead of schedule.
Build America Awards honor the builders of the nation’s most impressive construction projects. They recognize excellence in state-of-the-art advancement, project management, innovation, sustainability, client services, community contributions, safety and meeting the challenges of a difficult job.
November 5, 2014
Delivery of the steel arches is being accomplished using barges and tugboats via the Columbia and Willamette rivers over 20 nautical miles.
Photo courtesy of the Oregon Department of Transportation
What’s that floating toward the Sellwood Bridge project in Portland, Oregon? Barges transporting the giant steel arches that will support the new bridge being constructed by Sundt and joint venture partner Slayden Construction for Multnomah County.
Designed as an open steel deck arch structure, the new Sellwood Bridge will complement its surroundings while providing ample space for all modes of travel. There will be two vehicle lanes in each direction on the west end, which narrow to one lane in each direction on the east end. In addition, it will have two, six-foot-wide bike lanes and two, 12-foot-wide sidewalks.
The team is using a “shoofly” (detour) approach to complete this project. They lifted the old bridge deck and truss with hydraulic jacks and moved it to one side, then placed it on a set of temporary piers and connected it to temporary approach spans so traffic can continue to use it while the new bridge is constructed.
September 24, 2014
Slayen/Sundt poured 1,420 cubic yards of concrete at pier 5 – a key milestone in the 47-month project.
The Sellwood Bridge project in Portland, Oregon achieved two important milestones last month when Sundt and joint venture partner Slayden Construction placed nearly 3,000 cubic yards of concrete at the foundations of piers 4 and 5, located in the Willamette River. The concrete pours represent significant achievements in the 47-month, $216 million project to replace the aging bridge with a new structure that is wider, safer and seismically sound.
Discharge water cascades from the cooling system the team developed to control the temperature of the concrete as it cured.
The concrete milestones also represent impressive accomplishments in value engineering and ingenuity. Piers 4 and 5 are massive concrete structures comprised of reinforcing steel and 6000 psi concrete. Slayden/Sundt’s own workforce used specialized concrete placement techniques to control the excessive – and potentially damaging – heat that was created during the curing process.
An up-close look at the cooling system’s water tubes, manifold and valves
“As fresh concrete hardens, or ‘cures,’ heat is generated as a byproduct of the chemical reaction,” explains Sundt Project Engineer Matt Fisher. “Due to the very large mass of concrete at piers 4 and 5, this ‘heat of hydration’ is generated faster than it can naturally dissipate, which could result in excessive internal temperatures and possible damage to the concrete.”
As a solution to this problem, the team designed an internal water-cooling system to remove the excess heat from the concrete. Water pumps, manifolds, intake screens, valves, flow meters and thousands of feet of flexible plastic water tubing were carefully placed throughout the concrete formwork. After the concrete was placed at the piers, cool water was continuously pumped through the plastic tubes, which in turn carried away the excess heat from the concrete. Remote temperature sensors were also placed throughout the fresh concrete to collect temperature data. As the concrete cured, and the internal temperatures climbed, this data was constantly monitored to confirm the performance of the cooling system and to ensure a quality product.
Artist’s rendering of Sellwood Bridge as it will look when it’s complete in 2016
July 14, 2014
Crews closed Interstate 10 in San Antonio for just five hours while installing 164-foot-long girders at Ralph Fair Road.
In San Antonio last Saturday, Interstate 10 (I-10) was closed for just five hours while Sundt installed the longest precast, pre-stressed concrete bridge girders in the history of the Texas Department of Transportation – and then traffic was flowing smoothly again. The operation was part of Sundt’s $6.1 million transportation construction project on I-10 at Ralph Fair Road, in which our team of expert builders is planning and constructing a new overpass to expand the existing FM 3351 bridge to accommodate growing traffic volumes.
The nine 164-foot-long girders were transported approximately 40 miles to the site from the precast concrete plant and then installed with two hydraulic cranes in less than two hours. The girders form part of the backbone of the new overpass, which is expected to be complete and open to traffic next spring. Another 17 girders will be installed in the coming months.
“Everyone from Sundt, from supervision to craft employees, helped get this challenging task accomplished safely, and with minimal effects on motorists,” said Sundt Senior Project Manager Gustavo J. Anguiano. “Our team held many meetings with the owner, subcontractors and beam supplier to plan and walk through every aspect of the activities beforehand so that things went smoothly.”
The 110-foot-long steel pedestrian bridge was installed over one of Las Cruces’s busiest roadways in less than 24 hours.
How does a 110-foot-long steel pedestrian bridge appear over a roadway in 24 hours? Assemble it ahead of time in pieces and then carefully lift and fit the segments into place with specialized equipment. That’s what a team from Sundt and joint venture partner Wooten Construction did on Friday at Las Cruces High School in Las Cruces, New Mexico. Their innovative approach to bridge construction took months of planning, but as a result, one of the busiest roadways in Las Cruces was closed for less than 24 hours while the new structure was installed.Check out news coverage of the event here.
The operation was part of Wooten|Sundt’s $36 million education construction project at Las Cruces High School. It includes construction of several new parking lots and athletic fields, as well as 156,000 square feet of structural additions anchored by a two-story classroom building, administration areas, a media center, and a performing arts laboratory.
Wooten|Sundt plans to have the first phase of construction completed by August 2015. The new campus additions will help improve student flow between classes and provide a safer environment for one of the state’s most populated high schools.