The new bridge carries relocated US 34 over the Missouri River north of Plattsmouth, Nebraska. The $61M bridge has 18 spans resulting in a total bridge length of 3,280 feet. The main span over the navigation channel is 515 feet in length, and the roadway width is 86 feet to accommodate two lanes of traffic in both the EB and WB directions. The bridge has four units, with the river span unit being comprised of 3 spans of haunched steel plate girders. The steel unit utilizes five main load carrying girders with a sub stringer system. The remaining three units for the Nebraska and Iowa approaches are comprised of 150 pre-stressed concrete girders. The steel unit is supported on 4 large hammerhead piers. The river piers are supported on 48 inch diameter pipe piles and the remaining substructure elements are supported on steel-H piles. HDR performed the design of the new bridge as well as conducted a corridor study and the Environmental Impact Statement for the new bridge. The geotechnical design services were provided by Kleinfelder, a member of HDR's Design Team, and the Jensen Team, for the US-69 Design Build project. Kleinfelder's services included geotechnical exploration and design recommendations for the bridge foundations utilizing H-piles and pipe piles
Contract: $92.9 Million
1.7 Mile Bridge crosses Lake Dallas, Texas
Contract: $37.6 Million
Jensen's 14th crossing of the Missouri River
2,478' bridge with a span of 425'
State Route 13 over the Cumberland River
Bridge Width: 77 ft. 11 in.
Bridge Length: 1,686 ft 2 in.
Project Cost: $49.99M
1,400 ft bridge over Hillebrandt Bayou
Concrete Beam Bridge over Lake Texoma
A connecting bridge over the Raccoon River
Used a Value Engineering Proposal to change bridge design
Jensen's 13th time crossing the Missouri River
The bridge is 2,670 feet long and is a 15 span structure with a maximum span of 450 feet over the navigation channel.
The $24M project was opened in the fall of 2008 ahead of schedule. The 1500 foot long bridge is a 6 span structure with a maximum span of 280 feet.
310' tied arch bridge
Steel girder bridge replacement in Omaha, NE
Building a culvert for 2nd Ave
7-year project included 18 bridges
Crossing the Mississippi River
Twin bridges spanning 1,630'
Two extraordinary, large and complex cofferdams were built
Deepest drill shafts in Louisiana at time of project
Pedestrian Bridge connecting 15 miles of recreational trails
Long bridge spans, falsework towers and multi-crane lifts
Completed: December 2009