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Posted April 20, 2018, by John Marvig (marvigj27 [at] gmail [dot] com)

Curious bridge here. Looking at picture 11, it appears that the bridge may be a steel deck girder, later encased in concrete. Thoughts?

Posted April 19, 2018, by Anonymous
Posted April 18, 2018, by Dylan VanAntwerp (dylan_vanantwerp [at] live [dot] com)

Actually, it's Dylan and I am not the one who took the construction photos, but thanks for your response!

Posted April 17, 2018, by Nathan Holth (webmaster [at] historicbridges [dot] org)


You were lucky because you actually got to see the pre-stressed box beams before they were installed... you can see in your photos how they are hollow inside (hence the "box" designation). You can also see in your photos that before they are erected, they are individual beams, although if they are lined up on the bridge right beside each other (called Adjacent Box Beams) they have the appearance of a slab after being erected. This type of bridge is often called a Pre-Stressed Concrete Adjacent Box Beam (or girder) bridge. In dealing with historic bridges as those seen on this website, "concrete slab" typically refers to a traditional reinforced concrete structure with rebar inside, which is a poured concrete slab, rather than precast beams arranged to form a slab-like structure.

Posted April 17, 2018, by Dylan VanAntwerp (dylan_vanantwerp [at] live [dot] com)

What is the correct terminology for the precast concrete structure that replaced the west approach trestle on this bridge? I have seen these referred to as concrete box girders. Is this the correct designation? What is the difference between these and a concrete slab bridge or a concrete stringer?

Posted April 15, 2018, by Nick Schmiedeler (nick [at] nickschmiedeler [dot] com)

love it !! very nice

Posted April 14, 2018, by Richard Doody (rpdoody3 [at] gmail [dot] com)


This achievement in RR covered bridge building was later surpassed by this one at Marcus, WA.

The Washington & Great Northern crossed the Columbia on an eight span Howe truss bridge constructed by Porter Brothers Construction Company of Portland. The timber bridge was only the third to cross the American portion of the river and the first to be constructed in a single season. It opened in May 1902. Its construction was the last project that John F. Stevens would oversee before leaving Hill to become chief engineer of the Panama Canal. Its trusses were encased in vertical siding in 1914 making it, at 1200 feet in length, the longest covered bridge ever constructed west of the Mississippi. The railroad planked the deck in 1926 and opened the bridge as a toll crossing for automobiles.It was torn down in 1941 after Grand Coulee Dam closed.

I've only see one picture of it a museum in Colville, WA and scouring the internet has failed to yield any result.

Posted April 14, 2018, by Art S. (asuckewer [at] knite [dot] com)

Trussed floor beams!

Posted April 13, 2018, by Richard Doody (rpdoody3 [at] gmail [dot] com)

Nice set of photos. Looks like Union County has the potential to cash in on the tourism potential of old iron bridges like a certain neighboring county has with covered bridges. Somebody needs to suggest that the local authorities invest in some paint and repairs.These spans may never be able to support a truckload of hogs or soybeans but they definitely could serve as bike or pedestrian spans. Rusty gold as the Hawkeyes say on cable tv.

Posted April 13, 2018, by Julie Bowers (jbowerz1 [at] gmail [dot] com)
Posted April 13, 2018, by Don Morrison

Bridge #354 made the news. It is not good news. Again.

Closed due to advanced deterioration.

Posted April 11, 2018, by Luke

Most likely expanding the Hoover Nature Trail. Sad, but understandable that they're not re-using the substructure.

Posted April 11, 2018, by Anonymous

Bridge abutments and piers demolished early April 2018. Possibly being replaced by hike/bike trail bridge?

Posted March 27, 2018, by Luke

If you trace the ROW westward from this spot using the GIS link below or, you'll see that the trestle is indeed on the CD&W's ROW. as you'll see it crossing the Rock Island's Stockton-West Davenport line on the CD&M's overpass at what is now West Lake Park.

The trestle became an industrial spur on the DRI-Line at some point after the CD&M folded.

Posted March 27, 2018, by Miles W. Rich (mileswrich [at] gmail [dot] com)

This bridge, if it was used by the DRI line, is not from the Interurban Clinton, Davenport and Muscatine Railway. It is from the Burlington, Cedar Rapids, and Northern line from Stockton to West Davenport that also followed Blackhawk Creek toward Westlake Park, also known as railroad Lake. This line was abandoned by The Rock Island lines in about 1928 as being unnecessary as there was little or no local traffic generated in Blue Grass, and the main line already ran from Stockton into Davenport.

Posted March 19, 2018, by richard stimmel (richardstimmel [at] yahoo [dot] com)

did this bridge carry us 61 in the 30rds

Posted March 15, 2018, by Dylan VanAntwerp (dylan_vanantwerp [at] live [dot] com)

I had to edit the bridge's info. The Wabash builder's plan is slightly misleading. It lists the bridge as 8 panels/118ft, but whoever drafted it neglected to add in the half panels at either end of the bridge into the total length. The main span is actually right around 150ft long.

Posted March 11, 2018, by Jeff DeYong (edna [dot] iowa [at] yahoo,com)

This bridge was a road bridge on the original hiway 75 or KT trail from Rock Rapids to Doon. However it was never a railroad bridge for the Bonnie Doon railroad as speculated in the article, Old plat maps clearly show the railroad and roadway running parallel until several hundred yards South of this bridge. The road continues North over this bridge and past the historic Lakewood farm. The railroad however splits and continues along the South/East side of the river to the town of Lakewood which was 2 miles East of the famous farm. The farm had it's own small redwood style watertower which resembled a tower for a steam locomotive which probably confuses things. But the train clearly didn't cross this bridge and went to the now long gone town instead. 1930's aerial pics also show this. Carefully read the article about riding the Bonnie Doon and it too agrees with the train going to Lakewood and then crossing the river a mile North of the town - 3 or 4 miles from this bridge site.

Posted March 2, 2018, by Luke
Posted February 26, 2018, by Dylan VanAntwerp (dylan_vanantwerp [at] live [dot] com)

Thanks Luke!

Posted February 26, 2018, by Luke

Good to see you back, Dylan.

Posted February 25, 2018, by Todd (thbergs [at] mepotelco [dot] net)

The photo that is attached to this description, is the bridge on 70th Avenue. The reason for the fence is to prevent deer from escaping out of Timber Ghost hunting preserve. The bridge that is marked on Sperry Road, is a steel I beam type, with a concrete deck.

Posted February 13, 2018, by Marc McClure (MARC [dot] MCCLURE [at] OUTLOOK [dot] COM)

The railroad is the Milwaukee Road. The Chicago and North Western crosses Highway 30 at LeGrand Iowa.

Posted February 8, 2018, by John Marvig (marvigj27 [at] gmail [dot] com)

This one is in an absolutely horrible condition. I'm shocked it hasn't been replaced.

Posted January 28, 2018, by Dave King (DKinghawkfan [at] hotmail [dot] com)

I drove past once but didn't stop. Looks like you can just park along the shoulder and get out.

Posted January 28, 2018, by John Marvig (marvigj27 [at] gmail [dot] com)


is one able to park along the new highway? It certainly would seem to make getting this bridge easier.

Posted January 28, 2018, by Dave King (DKinghawkfan [at] hotmail [dot] com)

This bridge is now much more accessible with the completion of Highway 100/Collins Road.

Posted January 22, 2018, by Luke

Line was abandoned from DeWitt to Eldridge in 1931 based on the book I just added to the sources section. Based on the lightweight construction, it was relocated here. Something that, based on the many relocations John Marvig's uncovered, comes as no shock.

Posted January 22, 2018, by Luke

It is, as the only other railroad bridge in the general vicinity was the Rock Island/BCRN bridge at McCausland, but that line was heading northeasterly towards Clinton.

Also it (And all other bridges on that line.) were gone by 1937, as they don't appear in aerial views from that year.

Posted January 22, 2018, by Anonymous

This may be the bridge Henry was commenting on.

There also appears to be a girder bridge a bit north on what is still somewhat visible as the old ROW.

Or is it a privately built bridge?

41.767713, -90.575397

Posted January 21, 2018, by henry pacha (lp1234 [at] aol [dot] com)

I.m looking for information on the railroad over the Wapsi river north of Long Grove Ia. to DeWitt Ia. DATES : PICTURES THE FOUNDATION IS THERE WITH A DATE 1910 ON IT it was removed in the 1945 or about and if it built between SCOTT and CLINTON county line thanks Henry Pacha Long Grove PH # 563-320-6738

Posted January 21, 2018, by Anonymous

It won't.

Posted January 21, 2018, by John Marvig (marvigj27 [at] gmail [dot] com)

Since I have last visited this location in 2012, Iowa DOT and ILDOT have moved US-61 from Brady Street to I-280, hopefully rerouting oversized vehicles from hitting this bridge.

Posted January 17, 2018, by Luke
Posted January 10, 2018, by Luke

It's been on the chopping block for the better part of a decade.

Posted January 10, 2018, by Kenny Fairhurst (dwf0403 [at] gmail [dot] com)

The bridge is unfortunately slated for demolition.

Posted December 26, 2017, by Dave King (DKinghawkfan [at] hotmail [dot] com)

Looks like this bridge has been lost

Posted December 23, 2017, by Dylan VanAntwerp (dylan_vanantwerp [at] live [dot] com)

There is a distinct possibility that the shorter of the two truss spans in this bridge is actually the former main span from the Rock Island's original crossing site of the Chariton River, located a few miles to the north. A rough estimate of the old main span's length using the Google Earth ruler tool is approximately 120ft, nearly identical to the estimated length of the short truss on this bridge. This would help to explain the unusual design of the new bridge, with mismatched DPG and Warren through truss spans of varying lengths and designs. The design of the truss span in question is also similar to other simple warren through trusses the Rock Island erected in great numbers in the late 1800s/early 1900s.

Posted December 15, 2017, by Ron Waite (rkwaite [at] yahoo [dot] com)

Shaw Road bridge has been demolished 12/15/2017.

Posted December 10, 2017, by Ryan Hanson (hansonlandscape [at] gmail [dot] com)

This bridge was demolished and replaced this past summer.

Posted December 7, 2017, by Luke

After finding out about the loss of this bridge, I sought out any info on any other bridges that may have built by this shipbuilder-turned-bridge-builder, and turned up the following:

"Decorah - The contract for constructing 10 I-beam bridges with reinforced concrete abutments was awarded to the Dubuque Boat & Boiler Works, Dubuque, at $14,269"

Sadly the NBI shows no steel stringers built in 1916, so it seems these disappeared as well.

Posted December 7, 2017, by Luke

"Repairing the bridge could cost somewhere between $80,000 and $190,000 depending on the scale of repairs. Moon said if everything goes perfectly, the repair work could begin in about six months. If not, it could take a year or so.

Replacing the bridge could cost $1.5 million or more. In the best case scenario, it would be 18 months before construction starts on a new bridge, Moon said."

"To Sanders, the county has four options: repair the bridge; start the process of replacing it; acquire the land the bridge is on, which is slightly more expensive than replacing the bridge; or find a way to work with the city of Ames to turn its private road near the water plant back into a public road the county would maintain.

“I don’t particularly like any of those options, but that’s the only four options that I see,” he said"


Posted December 7, 2017, by Matt Lohry


Very well put; I couldn’t agree more. People from every political affiliation are contributors to this site, but despite those differences, we all have the same thing in common—we love and treasure our historic bridges, and that will never change. Political comments create division, no matter what side you’re on. As I’ve said before, whining about political stuff is what Facebook is for (which I ignore completely, so it doesn’t affect me!); Bridgehunter is not the place for it.

Posted December 6, 2017, by Mike Daffron (daffmikron [at] gmail [dot] com)


Posted December 6, 2017, by Robert Elder (robertelder1 [at] gmail [dot] com)

Hey folks. I hate to be critical of edits and contributions on here, but I really think we should keep politicians names out of status updates unless a politician is directly involved with the bridge.

I know there are people on here who don't like president Trump. Likewise, I know there are people on here who are proud supporters of President Trump. That aside, unless president Trump has a bridge named after him, swings a wrecking ball at a bridge, or makes a bridge great again, I really think we should not make comments about him in status updates.

Posted December 6, 2017, by Jason Smith (flensburg [dot] bridgehunter [dot] av [at] googlemail [dot] com)

Au contraire: This bridge is scheduled to be replaced with another faux pax arch bridge similar to the Grand Avenue Bridge. The old structure will be demolished in 2018 and completion of new bridge is scheduled for 2020. More here:

Posted December 6, 2017, by Daniel Barnes

Bridge has been reopened to limited traffic

Posted December 5, 2017, by Luke
Posted December 5, 2017, by Robert Elder (robertelder1 [at] gmail [dot] com)

This bridge is/was a very rare example of a Pratt-Warren Hybrid. There were a few of them in Kansas, but to the best of my knowledge all Kansas examples have been demolished except for this one which was saved by a landowner:

These bridges are an unusual example of innovation during the latter part of the truss era. By 1915, trusses were largely standardized, but these hybrids attest to late attempts at modification.

Posted December 5, 2017, by Luke
Posted December 4, 2017, by John Marvig (marvigj27 [at] gmail [dot] com)

The city of Clive is considering replacing this bridge:

This bridge is one of the oldest known railroad through girders in the country.

Posted December 1, 2017, by Clark Vance (cvance [at] dogmail [dot] com)

Does this seem like a relocated older bridge?

Posted November 30, 2017, by Anonymous

David, your picture is actually of the bridge at Moingona:

Posted November 28, 2017, by Rich Kaduce (rkaduce [at] outlook [dot] com)

The bridge is on 1908 USGS map. (Milo Quad) So it was probably in place by 1905. The Iowa State Aerial Photos show the bridge in place into the 1960s. It appears to have removed as part the Red Rock Dam project.

Posted November 25, 2017, by Luke

City to seek donations to save the bridge:

Posted November 24, 2017, by Clark Vance (cvance [at] dogmail [dot] com)

As of 24 Nov 17 the water is low and it's still there with the road.

Posted November 21, 2017, by Robert Elder (robertelder1 [at] gmail [dot] com)

Here is a classic example of a great truss bridge being put in danger by a failing substructure. This happens all too often across the country, and there are multiple reasons why it can happen.

Posted November 20, 2017, by Clark Vance (cvance [at] dogmail [dot] com)

Although this is a mundane artifact, it is a faint remnant of infrastructure gone almost without a trace for over half a century. We need these small reminders of our past scattered around the countryside.

Posted November 20, 2017, by Nathan Holth (webmaster [at] historicbridges [dot] org)

Its going to be replaced but sounds like the trusses go in storage for reuse:

Posted November 17, 2017, by John Marvig

I live a few blocks from here and checked out the new MOB the other day. Not a pretty sight. While the old bridge was not that significant, it sure was nicer than the current structure.

Posted November 17, 2017, by Don Morrison (bacchus [at] mchsi [dot] com)

This bridge actually was somewhat damaged in 1990 or 1993. I helped sandbag South Duff during those floods.

At least I remember it as being a bit misaligned in the mid 1990s, but still crossable.

I remember picking wild hops on the trail between South 4th and the bridge. I did use them in a homebrew, but don't remember if it was an IPA. 🤣

The railroad was removed in the early 1980s.

The tracks crossed L-way and passed along the east edge of the DOT property. South Grand Avenue didn't exist then. Grand Avenue ended at L-way.

Posted November 16, 2017, by Luke
Posted November 15, 2017, by John Marvig

Not shocking. IAIS has plans in place to replace a lot of bridges, including all the old trusses. Shameful loss of history.

Posted November 15, 2017, by Daniel Barnes

Drove by last night and discovered the bridge has been replaced by a concrete bridge.

Posted November 12, 2017, by Daniel Barnes

I went on Sunday figuring it would be quieter in town. I have observed many times that there can be a late afternoon lull in RR traffic on Sundays & Fridays. (as I also photograph trains) I counted on that lull. I started in Montour at 2:09, I followed the weather & counted on the sun being out by the time I was at the bridge which worked out. I arrived back in town just at sunset. A train came at 2:43 when I was half way there & then at 4:58 as I arrived back. I planned very carefully for this one.

Posted November 12, 2017, by John Marvig (marvigj27 [at] gmail [dot] com)

Pretty daring adventure. What day of week and time did you do it? How many trains came by? I go to school in Ames and I know that it is a very busy mainline.

Posted November 12, 2017, by Daniel Barnes

Basically I hiked all the way to it & the other bridges along that track, then back to Montour. I picked a time when I knew RR traffic would be lighter to make it much safer. I had tried to get to it 2 other times.

Posted November 12, 2017, by John Marvig (marvigj27 [at] gmail [dot] com)


You beat me to this one! How did you get back to it?

Looks like the portal was redone at some point?

Posted September 30, 2017, by Luke

County still retains ownership, but control and preservation is now in the hands of the Jones County Historical Society, who is fundraising for preservation:

Posted September 30, 2017, by Luke

Rumoured to be doomed, but that has been met with public backlash:

Posted September 23, 2017, by John Marvig

Bridge appears to have been replaced

Posted September 20, 2017, by David Backlin (us71 [at] cox [dot] net)

I visited this bridge August 2017 and it is closed to all traffic.

Posted September 16, 2017, by John Marvig (marvigj27 [at] gmail [dot] com)

Judging by the aerial imagery, that extra set of piers under the bridge has probably been there for a while. It appears to have been there in 2014 and even as far back as 2012. Not sure why those extra piers would be built, except for additional support. Weird.

Posted September 14, 2017, by Dylan VanAntwerp (dylan_vanantwerp [at] live [dot] com)

Good work John, very unique bridge.

Posted September 11, 2017, by John Marvig (marvigj27 [at] gmail [dot] com)

I suspect this bridge was made of recycled parts, especially when considering the numerous different builders.

Posted September 6, 2017, by Billy (jkendic1938 [at] gmail [dot] com)

As of September 2017 , this bridge has been closed over a year. The town said it was being repaired , but it was torn up pretty bad and has sat that way since at least last fall . The concrete railing is falling off and looks in danger of collapse. Trains still go under the bridge daily .

Posted September 5, 2017, by Art S (asuckewer [at] knite [dot] com)

Nice trussed floor beams!

Posted August 31, 2017, by Julie Bowers (jbowerz1 [at] gmail [dot] com)

Nope. I did notice it has been removed them last few times I drove by.

Posted August 31, 2017, by Tony Dillon (spansaver [at] hotmail [dot] com)

Juls... Did you buy this one finally?

Posted August 30, 2017, by Dave King (DKinghawkfan [at] hotmail [dot] com)

Looks like this bridge has been removed from this location.

Posted August 30, 2017, by John Marvig (marvigj27 [at] gmail [dot] com)

I parked at the main highway to the north to get back here. Hope that helps!

Posted August 30, 2017, by meggan wagner (wagner [dot] meggan808 [at] yahoo [dot] com)

is there anywhere to park to get to these

Posted August 9, 2017, by Luke

Daniel added this based off of info posted by James Holzmeier, so he listed it as the old Wabash bridge, which was a truss.

But this isn't the Wabash line, and I agree with the assessment that it was a DPG.

Posted July 30, 2017, by Walter Ohrnell (wohrnell [at] kc [dot] rr [dot] com)

The Wabash ran on the other side of the river.

Posted July 27, 2017, by Ron Waite (rkwaite [at] yahoo [dot] com)

The weight limit is now 3 Tons. Both signs have been changed.

Posted July 17, 2017, by Clark Vance (cvance [at] dogmail [dot] com)

Bridge was officially rededicated on 17 Jul 2017 in accordance with this resolution:

Posted July 16, 2017, by Luke
Posted July 16, 2017, by Tony Dillon (spansaver [at] hotmail [dot] com)

Very neat old pony! I wonder if this obscure firm might have been the predecessors to the Clinton Bridge & Iron Works.

Posted July 16, 2017, by Robert Elder (robertelder1 [at] gmail [dot] com)

This is an exceptionally interesting bridge. I will have to put it on the bucket list.

Posted July 14, 2017, by Don Morrison

I added this bridge today. If the community feels it isn't appropriate for this site because it may be modern, or whatever, feel free to remove it.

I do not know the build date or much other information about it, but I found it to be interesting.

I assume no loaded grain trucks will be driving over it anytime soon. If you're in the Upper Iowa river region, check it out!

Welcome to Iowa.

Posted July 14, 2017, by Jason Smith (flensburg [dot] bridgehunter [dot] av [at] googlemail [dot] com)

In my personal opinion, the city council is corrupt, overwrought and unable to meet the demands of the people, esp. as the bridge itself is the key route right now. A referendum is definitely needed now in order for the structure to have any chance.

Posted July 14, 2017, by Jason Smith (flensburg [dot] bridgehunter [dot] av [at] googlemail [dot] com)

Not to worry, Tony. I'm compiling an article for my column slamming the decision. They seem to be way off the mark in terms of logic. Why don't they just simply leave the bridge alone and get it fixed?

Posted July 13, 2017, by Tony Dillon (spansaver [at] hotmail [dot] com)

A modern truss bridge is "Historically relevant"?... What an IDIOT!!!

Posted July 12, 2017, by Jason Smith (flensburg [dot] bridgehunter [dot] av [at] googlemail [dot] com)

This bridge is under the radar for replacement after the city council rejected funding for repairing the bridge. More details here:

Posted July 9, 2017, by Andy Swanson (andy [at] midiowa [dot] net)

I think perhaps this was the old Milwaukee railroad not the CNW.

Posted July 6, 2017, by Andrew

There was a restaurant for many years called the Toll Bridge Inn at the site of the former toll booths. I lived in Dubuque for short time and moved in 2002. Sometime a few years later, the restaurant was torn down and the entire leading up to it was removed from the side of the bluff. It must have been considered highly unstable, because it seemed like such a strange thing to do.

Posted July 6, 2017, by Andrew

My understanding is the Fort Dodge, Des Moines and Southern was taken over by the Chicago and Northwestern Railroad in the 1960's and this line was used for a time in regular freight service after the end of the interuban. The CNW eventually abandoned it before the Boone and Scenic Valley acquired it's stretch of track in the 1980's. So, the CNW could be added to the railroads.

Posted July 2, 2017, by Roger Deschner (rogerdeschner [at] gmail [dot] com)

Article about city approval of new replacement bridge, which is now under construction.

Posted June 29, 2017, by David Swift (d [dot] swift [at] mchsi [dot] com)

I believe the coordinates for this bridge are incorrect. The correct ones being as follows >

42.4685092, -90.6768341

Posted June 25, 2017, by James Baughn (webmaster [at] bridgehunter [dot] com)

Field visit today: the pieces are in a big pile on the east side.