Iowa Bridges
Page 1 of 2 12 LastLast
Results 1 to 15 of 20

Thread: Iowa Bridges

  1. #1
    Legend Achievements:
    SocialRecommendation Second ClassVeteran50000 Experience Points
    DaddyMac's Avatar
    Join Date
    Oct 2006
    Posts
    14,375
    Thumbs Up
    Received: 1
    Given: 0

    Iowa Bridges

    Found this writeup of US bridges interesting

    The article that references it is a piece on the amount of tardy bridge inspections in the wake of last years tragedy in Minneapolis/St Paul.

    Found it surprising that Iowa has the 5th most bridges of any state in the US. Don't know why, just never would've guessed that....

    And even more disappointing that we have the 3rd most overall that are classified as "structurally deficient" (not percentage), 4th in number that are "structurally deficient or obsolete".



  2. #2
    Pro
    Points: 25,382, Level: 48
    Level completed: 84%, Points required for next Level: 168
    Overall activity: 0%
    Achievements:
    Veteran25000 Experience Points
    redrocker's Avatar
    Join Date
    Sep 2006
    Location
    Ames - West-CY'd
    Posts
    2,246
    Points
    25,382
    Level
    48
    Thumbs Up
    Received: 12
    Given: 31

    Re: Iowa Bridges

    I am not driving over any more bridges!



    32 years later and I am still riding on the back.

    I don't sweat the petty things,... I pet the sweaty things

  3. #3
    Addict
    Points: 91,556, Level: 94
    Level completed: 17%, Points required for next Level: 1,594
    Overall activity: 1.0%
    Achievements:
    Veteran50000 Experience Points
    CYdTracked's Avatar
    Join Date
    Mar 2006
    Location
    Des Moines, IA
    Posts
    8,700
    Points
    91,556
    Level
    94
    Thumbs Up
    Received: 9
    Given: 8

    Re: Iowa Bridges

    There is still an old wood bridge across the creek near my parents but I think they are finally going to get around to replacing it with a modern bridge here soon. Apparently a contractor looking to bid on it was recently asking neighbors for fill dirt.

    Most of these older bridges though have visable weight limit signs posted. There are some bridges that even have warning signs that only 1 truck at a time may pass over it. There are probably a lot that need replaced but it all boils down to budgets really. There are only so many projects they can take on at once with the funds they have.


    Go Cubs Go!

  4. #4
    Pro
    Points: 56,493, Level: 73
    Level completed: 63%, Points required for next Level: 557
    Overall activity: 6.0%
    Achievements:
    Veteran50000 Experience Points
    jtdoyle1's Avatar
    Join Date
    Apr 2006
    Location
    Ankeny, IA
    Posts
    2,232
    Points
    56,493
    Level
    73
    Thumbs Up
    Received: 158
    Given: 17

    Re: Iowa Bridges

    Do these bridges include all of the old bridges on rarely used gravel roads?



  5. #5
    Legend Achievements:
    SocialRecommendation Second ClassVeteran50000 Experience Points
    DaddyMac's Avatar
    Join Date
    Oct 2006
    Posts
    14,375
    Thumbs Up
    Received: 1
    Given: 0

    Re: Iowa Bridges

    Quote Originally Posted by jtdoyle1 View Post
    Do these bridges include all of the old bridges on rarely used gravel roads?
    Given the sheer numbers - I'd say so. Over 20000 bridges in Iowa?



  6. #6
    All-Star
    Points: 39,691, Level: 61
    Level completed: 50%, Points required for next Level: 659
    Overall activity: 14.0%
    Achievements:
    Veteran25000 Experience Points
    Bewilderme's Avatar
    Join Date
    Apr 2006
    Location
    Minneapolis
    Posts
    1,654
    Points
    39,691
    Level
    61
    Thumbs Up
    Received: 203
    Given: 153

    Re: Iowa Bridges

    I say we tear down all those damn fancy bridges and replace them with a stable, flat, boring piece of concrete. Screw the bridges of Madison County.


    'Any fool can make things bigger, more complex, and more violent. It takes a touch of genius-and a lot of courage-to move in the opposite direction.'
    -Einstein

  7. #7
    Speechless
    Points: 495,846, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 30.0%
    Achievements:
    SocialVeteran50000 Experience Points
    jdoggivjc's Avatar
    Join Date
    Sep 2006
    Location
    Sterling Heights, MI
    Posts
    33,402
    Points
    495,846
    Level
    100
    Thumbs Up
    Received: 1,335
    Given: 935

    Re: Iowa Bridges

    I drive across one of those bridges on a daily basis - the I-74 bridge connecting Bettendorf and Moline (IL). The original span was built in the 1930s as a two-lane bridge, the second "twin" span was built in the 1950s. Neither was built to the specs for Interstate travel (which didn't come into being until 10/30 years later) but yet it's an Interstate bridge anyway. 75,000+ cars travel the spans everyday for a setup that was designed I think for 35,000 cars. Engineers say the bridge is structurally safe (although the fact that the bridge is covered with rust doesn't give anyone warm, fuzzy feelings), but it is certainly structurally obsolete. The bridges have no shoulders whatsoever, so there's no possible way to escape a sticky situation. So when the bridge is absolutely packed during rush hour, if one car brakes unexpectedly it will cause at least a 5 car pileup and back up traffic for hours.

    Most of us can't wait for them to start building the 8-lane bridge sometime within the next 5 years.


    The I-74 bridge - it's a very beautiful bridge, it just can't serve in the capacity the area needs


    What the bridge looks like at rush hour, during construction, or when there's an accident


    What the replacement bridge will look like


    Chuck Lidell: I paint my toenails with pink and black polish. Problem is, I get more paint on my toes and on the carpet than on my nails. Any advice?
    Maria Sharapova: Don't you beat up other guys for a living? I don't know how to answer this.


  8. #8
    Addict
    Points: 74,291, Level: 84
    Level completed: 68%, Points required for next Level: 559
    Overall activity: 0%
    Achievements:
    SocialVeteran50000 Experience Points
    cycopath25's Avatar
    Join Date
    Sep 2006
    Location
    (307)
    Posts
    5,115
    Points
    74,291
    Level
    84
    Thumbs Up
    Received: 29
    Given: 4

    Re: Iowa Bridges

    I suffer from gephyrophobia



  9. #9
    Starter
    Points: 16,672, Level: 39
    Level completed: 28%, Points required for next Level: 578
    Overall activity: 0%
    Achievements:
    Veteran10000 Experience Points
    l2alphmacchio's Avatar
    Join Date
    Jul 2006
    Location
    West Des Moines
    Posts
    810
    Points
    16,672
    Level
    39
    Thumbs Up
    Received: 7
    Given: 54

    Re: Iowa Bridges

    Quote Originally Posted by jdoggivjc View Post
    Most of us can't wait for them to start building the 8-lane bridge sometime within the next 5 years.
    My company actually proposed on this bridge, but unfortunely did not win the work. It actually hasn't even been awarded yet. Design for this bridge will take at least three years. And even by then, they may not approve it for construction. Construction will probably take up to two years. So as cool of a project this is, I doubt you will be getting this bridge in five years.



  10. #10
    Speechless
    Points: 495,846, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 30.0%
    Achievements:
    SocialVeteran50000 Experience Points
    jdoggivjc's Avatar
    Join Date
    Sep 2006
    Location
    Sterling Heights, MI
    Posts
    33,402
    Points
    495,846
    Level
    100
    Thumbs Up
    Received: 1,335
    Given: 935

    Re: Iowa Bridges

    Quote Originally Posted by l2alphmacchio View Post
    My company actually proposed on this bridge, but unfortunely did not win the work. It actually hasn't even been awarded yet. Design for this bridge will take at least three years. And even by then, they may not approve it for construction. Construction will probably take up to two years. So as cool of a project this is, I doubt you will be getting this bridge in five years.
    Yeah, we're not getting it in five years, I meant to say construction is supposed to start five years from now. Apparently the majority of the funding is in place and they're working on "Right of Way". There was a barge out in the middle of the Mississippi surveying the riverbed in the general location of the bridge. Word around here is the bridge is a done deal, they just need to work out the fine details (such as designing the actual bridge).


    Chuck Lidell: I paint my toenails with pink and black polish. Problem is, I get more paint on my toes and on the carpet than on my nails. Any advice?
    Maria Sharapova: Don't you beat up other guys for a living? I don't know how to answer this.


  11. #11
    Starter
    Points: 10,049, Level: 30
    Level completed: 17%, Points required for next Level: 501
    Overall activity: 0%
    Achievements:
    Veteran10000 Experience Points
    throwittoblythe's Avatar
    Join Date
    Aug 2006
    Location
    Omaha, NE
    Posts
    687
    Points
    10,049
    Level
    30
    Thumbs Up
    Received: 0
    Given: 0

    Re: Iowa Bridges

    Civil Engineer here. I want to point out a few things. I'm not saying any of you are wrong, but sometimes the public is sometimes mislead by the media.

    A "structurally defficient" bridge does not really mean anything other than the bridge needs to be replaced within the next 10 or so years. So, a lot of people hear "structurally defficient" and think that the bridge is on the verge of collapse, this is not true.

    Also, engineers deal with two aspects of design "stability" and "servicability." Stability refers to the engineers view of the design: Is is stable? Will it withstand the loading it is intended to? etc. Servicability refers to the publics view of the design: Does is APPEAR safe to the public. One person mentioned the I-74 bridge being covered in rust. That's not necessarily a stability issue, rather its a servicability issue because the public does not percieve it as safe. Another example would be cracks in the plaster of a house. One might think the thing is about to fall down upon first glance, but further inspection may reveal that its structurally sound.

    Obviously, engineering/design/construction is driven by money. So, there are a lot of bridges in Iowa that need to be replaced, but someone has to foot the bill to replace those. That isn't the engineers place, that's for the talking heads up on capitol hill.

    And yes, the bridge count number does include the rural bridges of Iowa. That's why we have so many because almost every rural road in Iowa has at least one bridge on it.

    Just my two cents worth


    TRUE & VALIANT

  12. #12
    Speechless
    Points: 495,846, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 30.0%
    Achievements:
    SocialVeteran50000 Experience Points
    jdoggivjc's Avatar
    Join Date
    Sep 2006
    Location
    Sterling Heights, MI
    Posts
    33,402
    Points
    495,846
    Level
    100
    Thumbs Up
    Received: 1,335
    Given: 935

    Re: Iowa Bridges

    Quote Originally Posted by throwittoblythe View Post
    A "structurally defficient" bridge does not really mean anything other than the bridge needs to be replaced within the next 10 or so years. So, a lot of people hear "structurally defficient" and think that the bridge is on the verge of collapse, this is not true.

    . . .

    One person mentioned the I-74 bridge being covered in rust. That's not necessarily a stability issue, rather its a servicability issue because the public does not percieve it as safe. Another example would be cracks in the plaster of a house. One might think the thing is about to fall down upon first glance, but further inspection may reveal that its structurally sound.
    I understand what you're saying and I understand that the rust on the I-74 bridge isn't necessarily a structural issue (right now anyway). It's just when you're driving across the bridge at 50 mph and you see that much rust on a bridge it doesn't always give you a pleasant feeling inside.

    I also understand the difference between "structurally deficient" and "structurally obsolete" - that's why I called the I-74 bridge "structurally obsolete" in the first place


    Chuck Lidell: I paint my toenails with pink and black polish. Problem is, I get more paint on my toes and on the carpet than on my nails. Any advice?
    Maria Sharapova: Don't you beat up other guys for a living? I don't know how to answer this.


  13. #13
    Recruit
    Points: 8,668, Level: 27
    Level completed: 87%, Points required for next Level: 82
    Overall activity: 0%
    Achievements:
    Veteran5000 Experience Points

    Join Date
    Apr 2006
    Posts
    81
    Points
    8,668
    Level
    27
    Thumbs Up
    Received: 0
    Given: 0

    Re: Iowa Bridges

    I work in the bridge construction field and the sad part is it all come down to funding.

    The state of Iowa will have over 200 Million in short fall for funding of projects this year alone and it does get better after that. There just isn't enough money to replace and fix everything that is in the plan moving forward.

    The Iowa DOT is actually pretty well organized when it comes to planning and identifying what needs replaced next.



  14. #14
    Starter
    Points: 10,049, Level: 30
    Level completed: 17%, Points required for next Level: 501
    Overall activity: 0%
    Achievements:
    Veteran10000 Experience Points
    throwittoblythe's Avatar
    Join Date
    Aug 2006
    Location
    Omaha, NE
    Posts
    687
    Points
    10,049
    Level
    30
    Thumbs Up
    Received: 0
    Given: 0

    Re: Iowa Bridges

    Quote Originally Posted by jdoggivjc View Post
    I understand what you're saying and I understand that the rust on the I-74 bridge isn't necessarily a structural issue (right now anyway). It's just when you're driving across the bridge at 50 mph and you see that much rust on a bridge it doesn't always give you a pleasant feeling inside.

    I also understand the difference between "structurally deficient" and "structurally obsolete" - that's why I called the I-74 bridge "structurally obsolete" in the first place
    Oh yeah, I'm sure you do understand. I was just referring to the public in general. Your comment about the rust on the bridge is right on...its a servicability thing. It's structurally sound, otherwise people wouldn't be allowed to drive over it, but obviously the public views it as unsafe.


    TRUE & VALIANT

  15. #15
    Pro
    Points: 28,749, Level: 52
    Level completed: 9%, Points required for next Level: 1,001
    Overall activity: 1.0%
    Achievements:
    Veteran25000 Experience Points

    Join Date
    Apr 2006
    Posts
    2,766
    Points
    28,749
    Level
    52
    Thumbs Up
    Received: 29
    Given: 4

    Re: Iowa Bridges

    Talking about the most bridges there's also some sort of statistic about having the most miles of roads per person. That decision to put a road every mile(even if it is gravel) leads to a lot of bridges in turn



Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
  • TV: Cyclones.tv
  • HOOPS: Iowa State vs. Mississippi Valley State
  • December 31, 2014
  • 06:00 PM