Interstate 35W Bridge




Shortly after 6 in the evening on August 1, 2007, bridge 9340 collapsed
in Minneapolis, Minnesota killing 13 and injuring 145.  Construction of the
8 span, 1,907 foot long,113 foot wide bridge began in 1964 and was
opened to traffic in 1967.  The total cost of the project was $5.3 million.
The 4 span replacement bridge is 1,223 feet long and 189 feet wide to
support 10 lanes of traffic with accommodations for a future light rail
transit line.

If you look at the raw numbers, in 339 days a total of 48,700 cubic yards
of concrete was poured around 8,500 tons of reinforcing steel to build
the 330 foot, 504 foot, 242 foot and 147 foot spans.  Throughout the
entire project 11,085,000 pounds of reinforcing steel were used and
along with 1000 miles of tensioning cables, they will hold the whole
structure together for a minimum of 100 years.

But the new 9340 not only has muscle, it also has brains and beauty.
323 sensors embedded in the structure will measure and document the
health of the bridge 24 hours a day.  They track the lateral movement,
stress points and any unusual bending in the bridge with the data being
transmitted and viewed real-time by MNDoT and the University of
Minnesota.  When the bridge forsees icy road conditions, the anti-icing
system will spray a solution through a series of application disks to
eliminate ice buildup on the bridge deck and keep the traffic lanes open 
and safe.  While at night, an aesthetic lighting system made up of 300
light emitting diodes are able to project every color in the spectrum onto
the bridge’s briliant "snowbound white" surface.

The team of Flatiron Constructors Incorporated, an independent
subsidiary of HOCHTIEF Americas division, and Manson Construction
Company were selected to build the $233.8 million replacement bridge.
Carl Bolander and Sons was awarded the $15 million demolition and debris
removal contract.  The projects scheduled completion date was to be
December 24, 2008.  They finished on September 14, 2008...98 days
ahead of schedule.

It was an amazing 47 weeks to witness.  To everyone involved it can not
be said enough, congratulations on a job well done.  A job very well done.  

 Equipment


 American Hoist: 999.
 Antigo Breakers: T8600.
 Bidwell: 3424 work bridge, 4800 bridge deck concrete paver.
 Bobcat: T190 with auger, T250, T250 Turbo, 430.
 Broce Broom: RCT350.
 Broderson: IC200.
 Bros: Proof roller.
 Canycom: SC75.
 Case: 430, 1845C, 850K, 1102.
 Caterpillar: AP655C, 12G, 143H, 245D with bucket and demolition
   grapple, 330Cl with bucket and impact hammer, 330Dl, 345Bl, 345Cl
   with Genesis CXP990R shear, 350l with bucket, demolition grapple,
   impact hammer and shear, 430D, 446D with plate compactor, 236,
   236B, 246B, 257B, 257B2, 277, 938F, 950G, 962H with bucket and
   forks, 966F with bucket, 4 in 1 bucket and forks, 966G, 988B, 988F,
   953, 953B, 963C, D5Glgp, D5Mlgp, D6Nlgp, D6Rlgp with GPS, D6Rxw,
   CS563, CS563C, D350D, D400E.
 CMI: TR225B, Curing machine, Texture machine.
 Dust Boss: DB60.
 DYWIDAG Systems International (DSI): Multistrand jack.
 Dynapac: CA150, CA252, CA262.
 Euclid: TS14 water tanker.
 FMC|Link-Belt: LS418A.
 Genie: S80, S125, TZ34/20, Z60/34, Z80/60, Z135/70.
 Goldhofer: THP/H4.
 Gomaco: GT6300 Commander 3.
 Grove: RT500C, RT600E, RT680E, RT700E, RT875E, RT880E,
   TMS870, GMK5120B, GMK7550.
 Guntert and Zimmerman: S850 Quadra.
 Hamm: HD12.
 Hitachi: 330lc Zaxis, EX450lc.
 Hyundai: 450lc-7.
 IMT International: AF300.
 Ingersoll Rand: SD100D.
 JLG Lift: 33RTS, 80HX, T500J, 400S, 450A, 600A, 600S, 600SC,
   800S, 860SJ, 1350SJP.
 JLG|Lull: 1044C-54 S2, 1044C-54 S3.
 John Deere: 310SG, 350Dlc, 850Clgp, 790D.
 Kenworth: Unknown prime mover.
 Koehring: 1066.
 Kobelco: 135SRlc, ED150, SK35SR3 with impact hammer, SK260
   with bucket and impact hammer.
 Komatsu: PC35MR, PC308USlc, PC160lc, PC200lc, PC220lc, PC400lc,
   CK30, SK1020, WA480, D51PX.
 Kubota: KX080-3, Kubota KX080-3 with Atlas Copco PB420 impact
   hammer, KX161-3.
 Liebherr: 281HC.
 Link-Belt|LBX: 240lx, 460lx.
 Lippmann: Portable primary crusher.
 Manitowoc: 777, 999, 3900, 4000W, 4600 S3 barge mounted ring
   crane, 4600 S4 ring crane.
 Michigan: L120.
 Miller Formless: M1000.
 National Crane: Series 700B on Kenworth.
 Nelson Manufacturing: Tri-Axel Boom Dolly.
 New Holland: B110.
 Putzmeister: 36Z.
 RexCon: Town and Country placer/spreader, Town and Country slip
   form paver.
 Schwing: KVM39X, S39SX, S61SX.
 Shuttlelift: SL300C.
 Skyjack: SJ8841, SJ9250.
 Skytrak: 10054.
 Snorkel: PRO66, TB126J.
 Soilmec: R930.
 Takeuchi: TL130, TL140.
 Terex: RT160, RT175, SS1048C.
 Terex|American: HC110.
 Tymco: 600.
 United Form Corporation: 16-9ATX.
 Volvo: EC290Blc, L120E.

 September 2010


 
 
 
 
 
 
 
 
 
 
 
 
 
 
 January 2009


 
 
 
 
 
 October 2008


 
 
 
 
 
 
 September 2008


 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 August 2008


 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 August 1, 2008: The 1 year anniversary of the collapse.


The image on the left is the first image I took after arriving at the collapse
of the Interstate 35W Bridge.  The comparison image on the right was
taken exactly 365 days later, to the minute.

 
 July 2008


 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 June 2008


 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 May 2008


 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 April 2008


 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 March 2008


 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 January 2008


 
 
 
 
 December 2007