Post on 19-Jan-2015
description
JANUARY 30, 2010IOWA BICYCLE SUMMIT
Brian P. Keierleber P.E.ECONOMICAL BRIDGE CONSTRUCTION
Bridges in Iowa• Iowa is 5th in Bridges and 30th in population• Bowstring Arch 1872 moved 1891
Buchanan County Iowa
• 257 Bridges over 20’• 9 Pinn-connected
Trusses constructed 1870-1914
• 3 Riveted Trusses• Henry Ford started
mass production of the Model T in 1913
New Construction Costs
• Receives about $283,000/Yr. for BRS/BROS
• 30x100 slab x $105/sf. or $315,000
Our Old Bridges
• We must Have An Economical Alternative or We will Have 250 year old bridges.
RECYCLING CAN BE AN OPTION
We have constructed 15 Bridges from Railroad Flatcars
What Do They Look Like?
Types of Cars
• Pulp Cars
• Military
• 89’ Flatcars, Cost $16,250 Delivered
• 89’ Flatcar cut to 68’, Cost $12,000 Delivered
• Total Costs range between $62,000 and $75,000
Flatcars Not Boxcars
Pulp Cars
Sheet Piling Placed With a Vibratory Plate
Expansion Joint
Stub Abutment With Sheet Piling
Tying The Cars Together
• 1) Bolted Directly
• 2) Bolted With Concrete and # 11 Bars
• 3) Welded
Concrete Beam and Bolts
Bolted Directly
Welded
Types of Decks
• Asphalt Millings
• Rock
• Asphalt Slurry
Asphalt Millings
Rock
Asphalt
Tie Down Holes
Patch Holes in The Decks
• 1) Non-Woven Geotextile Fabric
• 2) Asphalt Treated Geotextile (petrotac)
• 3) Rubber Conveyor Belting
Why Do They Retire the Railcars
• Newer lighter More efficient Cars Exist
• Tax Purposes
• Derailments
• Age Limit-Not to Exceed 40 Years
Hazleton Subdivision on Kentucky Ave
89 Ft. FlatcarAround the Mountain Bridge
68 Ft Railcar270 st Franck’s Bridge
Bovenmeyer’s Bridge
Eddy’s Bridge
DELIVERING THE CARS
Placement of Novak’s West Bridge
Equipment Requirements depend on the site
Financing
Other Solutions - Research
Look For Better Methods Jakway Park Bridge Federal Research
2008
Otterville Wapsi Bridge moving to Fredericksburg
Historical Bridges are NO Problem
KING PINN POST constructed 1898 now on trail
WAGON TRUSS BRIDGE constructed 1870 now on trail
There are still 12 Truss Bridges in use in Buchanan County
In the Future they will be for sale
others may be available in a county near YOU
arrangements can be made to move them
THROUGH TRUSS over Lime Creek in Jefferson Twp
sec13
Bonefas BridgeWestburg 21
150 st. & Indiana
Adapt to NEW Concepts
We CAN Adapt This
We CAN Do this also
Pavements from BIO-OILS
ROAD BASE STABILIZATION FROM USED SHINGLES
D-22 CompletedFuture Dreams are to pave the
Shoulders
Enhancement Funds Can Be Used For Trails
Fontana Bicycle TrailUnique Paver
Excellent in Remote Areas
Finished Product
And Sometimes Completely Unexpected
Maybe the need is Just MoreHORSE POWER
Questions and Issues???http://www.operationsresearch.dot.state.ia.us/reports/ihrb_by_number/tr400plus.html