Orthotropic Bridges
One of world’s most spectacular new bridges, France’s Millau Viaduct has the world’s largest orthotropic deck area, and involved the largest and most complex steel superstructure launching to date. Orthotropic steel decks in North America are very rare, about 51 out of 650,000 inventoried bridges. California has 4% of all US bridges, but more than 25% of the Orthotropic bridges.

Maine’s Penobscot Cable-Stayed Bridge
The original Waldo-Hancock Bridge stood watch over the town of Bucksport, Maine for 74 years. In the summer of 2003, the main suspension cables were unwrapped to prepare for a visual inspection. Deterioration of the main cable on the south side of the bridge was much more advanced than expected, leading the Maine Department of Transportation to simultaneously undertake a strengthening project on the existing bridge and the design of a new bridge on a parallel alignment.

Chief Four Bears
The Four Bears Bridge, currently under construction, is the only crossing of Lake Sakakawea, a Missouri River reservoir that was formed by the Garrison Dam. The story of this replacement structure, set on the prairies of the Fort Berthold Reservation, is rich with cultural issues, as well as design and construction challenges.

NCSEA News
News from the National Council of Structural Engineers Associations
Structural Moments:
• 13th Annual Conference
– Kansas City
- Strategic Planning
- Member Organization Goals
• 3rd Annual SEAOI Midwest Bridge Symposium
• ICC Seeks Structural Engineer Members for Code Committees

Structural Columns
The newsletter of the Structural Engineering Institute of ASCE
• Strength Design in Aluminum
• Nominations Sought For SEI and ASCE Awards
• 2006 Structures Congress
• September Journal of Structural Engineering
• FHWA Accelerated Bridge Construction Conference

CASE In Point
The newsletter of the Council of American Structural Engineers
• You Might Be a Successful Businessman if You…
• Hurricane Victims Still Need Your Help
• Check Out the Supplier Directory
• Do you want to be an Expert Witness?
• Answers to Flood Questions

2005 Photo Contest

Noteworthy

Book Case

Spotlight

Great Achievements

CASE Business Practices

From Experience

The Paseo Bridge is a four lane self anchored suspension bridge carrying I-35/29 over the Missouri River in Kansas City. Constructed in 1953, the bridge consists of a 616 foot main span and two suspended side spans of 308 feet each. Two 2-span continuous riveted plate girder approach spans complete the main river crossing.
This bridge underwent a major rehabilitation this year. The scope of the rehabilitation included full containment sandblasting and repainting of the bridge superstructure, deck and substructure concrete repairs, deck resurfacing, installation of a new bridge rail, new bridge light poles, wrapping of main cables with EPDM membrane for water-proofing, installation of fixed and sliding pot bearings at the towers, floorbeam and lateral system gusset plate replacements, repairs to anchor links, installation of failsafe redundancy devices at the anchor links and replacement of all expansion and relief joints. Kansas City provided aesthetic enhancements at the ends of the bridge, included as part of this project.
Owner of the structure is the Missouri Department of Transportation, prime contractor for the rehabilitation is Clarkson Construction Co. of Kansas City, rehabilitation design engineering and on-site technical assistance during construction was provided by Parsons.

MoDOT Resident Engineer:
Matt Killion, P.E.
Clarkson Project Manager:
Matt Tollefson, P.E.
Parsons Project Manager:
Peter Whitlock, P.E.