July 14, 2014
January 15, 2014
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.
December 18, 2013
Sundt will demolish this bridge at FM 3351 (a small, local roadway) over Interstate 10 and replace it with a new, 164-foot-long, single-span bridge.
Where others may only see a bridge, Sundt sees an opportunity to improve infrastructure while saving money. Near Fair Oaks, Texas (just north of San Antonio), Sundt is replacing this bridge at FM 3351 (a small, local roadway) over Interstate 10 with a new, 164-foot-long, single-span bridge. Sundt’s project team developed a value engineering proposal to replace the original structural steel girder design with precast concrete girders. The idea was approved by the Texas Department of Transportation and will provide significant cost savings.
Sundt’s scope consists of demolishing the existing bridge, widening the I-10 frontage roads, and widening FM 3351. Additional duties include earthwork, drainage, structures, walls, asphalt paving, signage, and striping. The project will be completed in March.
October 10, 2013
Sundt constructed the bridge’s 12, precast concrete arches with its own crews.
Texans traveling across the newly reconstructed West 7th Street Bridge in Fort Worth have more to marvel at than the 12, illuminated concrete arches that form the backbone of the structure’s one-of-a-kind design. The fact that Sundt completed the $24.1 million bridge construction project a month ahead of schedule – reopening it to travelers well in advance of the busy holiday season – is also drawing attention and praise. The 980-foot-long bridge spans the Trinity River and connects downtown Fort Worth to the city’s busy cultural district. It opened to traffic on October 9.
Sundt employed a number of innovative approaches to minimize traffic closures during the 23-month project. Chief among them was the decision to construct the 12 precast, post-tensioned concrete arches offsite (with Sundt’s own concrete construction crews) and then place them in pairs along either side of the old structure primarily at night. This approach allowed the bridge to remain open to traffic for the four months that it took to make and cure each 163-foot long, 300-ton arch. Once all of the arches were in place, the project team closed and demolished the old bridge and constructed the new one in its footprint.
The bridge’s grand opening celebration drew a large, festive crowd.
The bridge replaced an old, outdated structure. In addition to its attention-grabbing design, it features four vehicle travel lanes and two, 10-foot-wide pedestrian lanes to ease traffic flow, improve safety and support Fort Worth’s increasing interest in bicycling and walking.
September 25, 2013
A transportation official takes a ceremonial ride across the new West 7th Street Bridge.
Yesterday afternoon, crews from Sundt took down the barricades to the West 7th Street Bridge in Fort Worth, Texas, opening the thoroughfare to traffic for the first time in nearly four months. The bridge, which links downtown Fort Worth with the city’s cultural district, was supposed to be closed into November, however Sundt’s bridge construction experts adopted an aggressive schedule and innovative construction techniques in order to open lanes for traffic a month early.
“Our team did a fantastic job with this project,” Sundt Senior Vice President and Texas District Manager John Carlson said. “We promised the people of Fort Worth, and our client the Texas Department of Transportation, that we would deliver this project safely and efficiently, and our team exceeded everyone’s expectations.”
The West 7th Street Bridge was built with precast, post-tensioned concrete arches – making it the first of its kind in Texas. Each of the 12 arches measures 163 feet long and weighs more than 300 tons. Sundt built the arches offsite over a period of several months and moved them into place one by one before the old bridge was demolished and the new one was constructed in its place. Click here to read more about the arch placement and see a short video.
The rebar cage that Slayden/Sundt will use to set the shaft before placing concrete around it. The cage is 220 feet long and weighs approximately 175,000 pounds.
The summer and early fall have been busy for Slayden/Sundt as the joint venture reconstructs the 2,000-foot-long Sellwood Bridge in Portland, Ore. The team has been focused on constructing the in-water piers that will support the three new spans over the Willamette River. Each pier consists of four drilled shafts that are 10 feet in diameter and up to 176 feet below the river bottom (the river is approximately 30 feet deep).
Environmental permitting constraints have left the team with a tight window to complete the drilled shafts and construct/install the perched boxes around the concrete columns. The perched box caissons will allow crews to complete the construction of the piers over the next nine months. They will be installed with cranes and pile drivers above water, and by divers below the water. Building Information Modeling (BIM) is being used to pre-plan the work thoroughly for maximum efficiency and safety.
BIM is being used to plan the construction of the perched box caissons.
The $207 million, heavy civil construction project involves replacing the aging Sellwood Bridge with an open steel deck arch structure. The project team is using an innovative “shoofly” (detour) approach to complete this complex project, which is explained here. This short video shows the successful bridge slide that took place last January.