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Posted February 1, 2018, by Jason Howard (jhoward0000 [at] gmail [dot] com)

This bridge (commonly referred to as 3 Mile Bridge) is in operation while its replacement is being built alongside, scheduled to open in 2021. Current bridge will be demolished in 2019 after one leg of new bridge opens.

Posted January 24, 2018, by Kenny Fairhurst (dwf0403 [at] gmail [dot] com)

This is a quite unique bridge.

Posted December 1, 2017, by Henry Spiller (Hlspiller [at] aol [dot] com)

What us the latest update on when the bridge will reopen. It was scheduled to reopen today. Dec 1 2017

Posted October 19, 2017, by Nathan Delaplaine (ndelaplaine [at] gmail [dot] com)

If this bridge no longer operates, then I think it’s time to replace this bridge with a non movable span.

Posted September 26, 2017, by Nathan Delaplaine (ndelaplaine [at] gmail [dot] com)

The bridge being used as a footbridge will no longer be operating as a swinging drawbridge.

Posted September 26, 2017, by Nathan Delaplaine (ndelaplaine [at] gmail [dot] com)

This bridge no longer operates.

Posted September 26, 2017, by Nathan Delaplaine (ndelaplaine [at] gmail [dot] com )

Not anymore. This bridge is gone.

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

Looks like this could have been an older road use bridge, relocated here in 1999?

Posted September 10, 2017, by Luke

Updated artcle says "Islamorada Fire Chief has said the bridge is “driveable.”"

Posted September 10, 2017, by James Baughn (webmaster [at] bridgehunter [dot] com)

This bridge has reportedly been damaged by Hurricane Irma.

Posted August 23, 2017, by Nathan Delaplaine (ndelaplaine [at] gmail [dot] com)

This bridge no longer operates, but the bascule span is gone.

Posted July 24, 2017, by Anonymous

Photos should be updated because there is now a pedestrian walkway and bicycle trail under Span 1 next to Bent 2.

Posted July 11, 2017, by gilbert j menendez (menendezgilbert [at] gmail [dot] com)

seaboard airline when it was around never used that bridge.

Atlantic coast line built it to gain access to port of Tampa, that's it.

Posted June 23, 2017, by Matt Lohry

This one is hand-operated as well.

Posted April 17, 2017, by Anonymous

1,206.21 smoot

Posted April 7, 2017, by John (rentonthurston_e7 [at] yahoo [dot] com)

Whats the deal with this bridge? When did it get taken out of service and how come it just sits there, couldn't there be a good use for a walking path or something?

Posted April 5, 2017, by Anonymous

I highly doubt Douglas paid to use the stock image from 123RF, judging by the fact it's both watermarked AND a low-quality cellphone pic.

Posted March 29, 2017, by Douglas Butler

Have this old bridge on the right moved to the park yet?

Posted March 9, 2017, by Bryan (Biblettfr15 [at] yahoo [dot] com)

What times does this open or contact information for a call

Posted February 28, 2017, by Douglas Butler

This is my drawing of a skewed bascule bridge in Boca Raton FL

Posted February 20, 2017, by Geraldine McNatt (Szuch) (jszuchj09 [at] gmail [dot] com)

This may have been the bridge where my father was a bridge tender for three years ending in 1948 when he was killed. We lived in a little house by the railroad track. Does anyone know my father, Charlie N McNatt? He was married to Christine Williams from Okeechobee, Florida.

Posted February 13, 2017, by Douglas Butler

I know this bridge had a two paralleled bascule bridge at one time when was the bridge actually built before it was replaced?

Posted February 13, 2017, by Douglas Butler

Is this bridge still functional or not?

Posted November 21, 2016, by John (johntherogger [at] yahoo [dot] com)

This bridge is undergoing rehabilitation. Looks like they're putting up a new tower and new signals.

Posted October 28, 2016, by gilbert j menendez (menendezgilbert [at] gmail [dot] com)

There's a lot of photos there, but no photos of the bridge in the up position. Was that bridge still operable up to the day it was dismantle?

Posted August 23, 2016, by Jerry Sinclair (jrrysinclair [at] aol [dot] com)

The bascule bridge has been replaced with a high level fixed span in August 2016. This leaves only two movable bridges in Duval county automobile highways. The Main Street [lift] bridge and the ageless Ortega River Bridge.

Posted August 23, 2016, by James Broxson (james [dot] broxson [at] yahoo [dot] com)

As a kid many, many years ago my buddies and I dove off that trestle and climbed the steel girders. In the days before we were old enough to drive. All of us grew up in Milligan. Crazy, actually stupid stunts in those days!

Posted August 20, 2016, by David Brown (redphish2 [at] gmail [dot] com)

I figured y'all would like to see a rendering of what the new bridge will look like.

Posted August 20, 2016, by David Brown (redphish2 [at] gmail [dot] com)

You'll want to update the status of the bridge as the draw portion of the bridge is now gone. The bridge is in the process of being demolished to make way for the high-rise replacement.

Posted July 29, 2016, by Nathan M. (anlage99 [at] yahoo [dot] com)

Here's a short video of the swing bridge removal.

Posted July 18, 2016, by MKM (mkmcclure63 [at] gmail [dot] com)

Currently only the north end is accessible and only for a short portion. The north end of the Seven Mile Bridge is in the midst of a re-hab.

Posted June 24, 2016, by Jay (farmerjjj78 [at] gmail [dot] com)

Does this bridge open for boat traffic? If so who do I contact or what are the times. Thanks

Posted April 7, 2016, by Tony Dillon (spansaver [at] hotmail [dot] com)

Good to see it given a second life Nathan... Thank you for being a part of that!

Posted April 7, 2016, by Nathan M. (anlage99 [at] yahoo [dot] com)

The original Tamiami bridge was removed from service on the 1st of April 2016. I am the engineer that designed the removal of the bridge. We jacked the bridge up to a height of 8ft, slid it onto the road, jacked it an additional 3ft, placed it on a self propelled trailer, and then drove it across town to a local park. The bridge will be re-purposed as a foot bridge joining two city parks.

Posted January 29, 2016, by Bob Rich (rich1256 [at] bellsouth [dot] net)

Functionally obsolete? It is used every day.

Posted November 20, 2015, by Clarence Nelson (nelsond [at] ameritech [dot] net)

Wikipedia has the following history about this bridge. It appears that it had some work done since it's original conception:

"In the late 1910s, with the deteriorating wooden Collins Bridge (now, the Venetian Causeway) as the only direct land route between mainland Miami and the barrier islands of Miami Beach, construction on the roadway began in 1917. The roadway, dedicated as the County Causeway, was completed in 1920. Watson Island was reclaimed surrounding the western end of the roadway, completed in 1926.

Having undergone several lane and structural expansions following opening of the original two-lane road, the State Road Board and Dade County Commission voted to rename the causeway in honor of World War II General Douglas MacArthur in 1942.[2] The causeway was accessible from mainland Miami via Biscayne Boulevard and intersecting side streets through the 1990s, when replacement of the western- and easternmost spans and construction of direct highway access to I-395 began. The eastbound lanes of the bridges were completed in 1995, and westbound lanes finished in 1997."

This explains the "modern look" and so many lanes.

Posted November 19, 2015, by Anonymous

It looks far to new to have been built in 1920. They also wouldn't have built an 8 lane one with shoulders.

cox bridge (Florida)
Posted November 17, 2015, by katy dugan (katyedugan [at] yahoo [dot] com)

am attempting to find the origin of the name for this bridge, "cox bridge" any information much appreciated.

Posted October 11, 2015, by Anonymous

all that needs to happen is for James to make one of C. Hanchey's imagery the default instead of the sketch.

Posted October 11, 2015, by Robert Thompson

Actual photos, instead of pen-and-ink scribbles! Thank you.

Posted September 30, 2015, by Bob O (rowen11 [at] bcowen [dot] com)

Your overview states that this is on FL 44, 44 is the south causeway. This is North and Flagler Ave.

Posted September 2, 2015, by harry diaz (hdiaz [at] vt [dot] edu)

Bridge is a bascule bridge Built by Kiewit infrastructure South Designed by Hardesty and Hanover

Drew Bridge (Florida)
Posted August 16, 2015, by ArtS (asuckewer [at] knite [dot] com)
Posted July 23, 2015, by Douglas

A crazy naked man was on top of the raised drawbridge May/ 26/15 this time.

Posted June 19, 2015, by Luke

Considering that the logging company abandoned nearly all railroad operations in 1944 (, probably not.

Posted June 19, 2015, by Douglas Butler

Do anybody knows if this hinged drawbridge is still in service or not ?

Posted June 3, 2015, by Conchscooter (conchscooter [at] gmail [dot] com)

The Boot Key bridge has been permanently closed after the state declared it unsafe and decided it wasn't worth millions to render it safe.

Like so many open spaces in the Keys Boot Key was originally slated for development, thus the apparent "platting" of streets. However to take a walk on the island (which I haven't done since the bridge closed) you find mangrove scrub land and dumped garbage along the road.

There is/was a radio station on the island 1600 am, as I recall and they had to commute by boat. Whether or not they've moved the radio station I haven't heard but the bridge is very much closed.

this picture from my blog Key West Diary

Posted May 22, 2015, by Douglas Butler

You can move them thanks.

Posted May 22, 2015, by Douglas Butler

This swing bridge was converted into a lift bridge.

Drew Bridge (Florida)
Posted May 12, 2015, by Nathan Holth (webmaster [at] historicbridges [dot] org)


As a followup to my evaluation of this bridge's significance, I have submitted request to Florida State Historic Preservation Office to list the bridge on the National Register of Historic Places. The process moves REALLY slow, but supposedly Florida SHPO is doing its own research on the bridge as well. My hope is that a listing would increase awareness of the bridge.

Drew Bridge (Florida)
Posted May 12, 2015, by Blake K. Reaves (blakekarleen2012 [at] yahoo [dot] com)

I am absolutely amazed at what I read about the Drew Bridge. I can honestly say that I know very little about bridges. I just knew that I had been fascinated by this old swing bridge since I was a small child and thought that it deserved some recognition, as few people in our town knew it existed. I never thought it could be one of the oldest railroad bridges in the country. The two counties really don't know what they've got sitting there in the river and I wish more could be done to preserve it.

Posted April 9, 2015, by Anonymous

Funny, I distinctly remember the website coming to an agreement that CSX was preferred, and you telling James to delete all of your content because you didn't get your way...

Posted April 9, 2015, by Harvey Henkelmann (ferroequus [at] live [dot] com)

It's regrettable that people are allowed to use technology to bully their edits on this website, one of the reasons why I no longer contribute to

Posted April 4, 2015, by Daniel Timothy Dey (ddey65 [at] yahoo [dot] com)

This was built by the Luten Bridge Company in York, Pennsylvania.

Posted March 13, 2015, by Jerry Sinclair (jrrysinclair [at] aol [dot] com)

This bridge will not be easily removed as it is listed as a historical monument. It is occasionally closed for repairs and maintenance. The locals love this bridge and would not want it changed or widened. The Coast Guard is happy with the draw span horizontal clearance as no barges or wide vessels enter the Ortega River (unlike the Bridge of Lions in St. Augustine which had to be completely overhauled to accommodate frequent commercial traffic).

Posted March 10, 2015, by colingildea (colingildea125 [at] gmail [dot] com)

Bridge is not abandoned is used everyday for trains into portmiami

Posted March 2, 2015, by Nathan Holth (webmaster [at] historicbridges [dot] org)

I can confirm its in operation for both trains and boats.

Posted February 28, 2015, by Jackie Gudgel (jgudgel2 [at] hotmail [dot] com)

I was on the erection crew that built this bridge.

This was one of the fondest memories of my youth,

There were 6 erectors, 1 crane operator & the supervisor,,, his name was Curly. What a great time to be alive, the world was a different place back then.

Posted February 27, 2015, by Roger Deschner (rogerdeschner [at] gmail [dot] com)

Holy cow! They suspended a two-story Bailey pony truss bridge from scaffolding to make a temporary lift bridge. Not exactly a work of art, but still a unique, remarkable bridge.

Posted January 10, 2015, by James McCray (jamesinslocomb [at] yahoo [dot] com)

My prayers go out to the family of Phoebe Jonchuck, the little girl who was murdered by being thrown off this bridge Thursday.

Posted November 26, 2014, by Dave Oram (DAOCedar [at] gmail [dot] com)

The precast concrete segmental railroad bridge was put in service at the end of May 1988 with the dedication ceremory occurring on June 4, 1988. I believe it remains the only precast segmental bridge carrying freight railroad loadings in the US. The bridge is 11,648 feet long and consists of 110 simply supported 100 ft long spans, a three span continuous section over the navigation channel (100ft-170ft-100ft) and 13 each 24 ft long trestle spans on the Milton, FL end. Near the east end, several of the spans are cast as curved spans. Construction of the project began in June of 1985. A precast yard was established on the west side of the bridge and construction progressed from west to east. After the bridge was placed in service, the former bridge was removed. The bridge tenders house is now located at the RR museum in Milton, FL. The former through truss swing span became scrap metal. The timber trestle was removed and timber piling pulled.

Posted November 24, 2014, by Nathan Holth (webmaster [at] historicbridges [dot] org)

I would further comment that the Florida Historic Bridge Inventory says this of the other cable stayed bridge:

"Napoleon Bonaparte Broward Bridge at Dames Point was the only bridge in the United States to feature the harp (parallel) stay arrangement on two vertical planes, a design that rivals suspension bridges for strength and beauty."

Having visited the St. Johns Bridge in Oregon this year, and living in the state that is home to the Mackinac Bridge, take offense at that statement. I think Florida is just jealous they don't have a Steinman.

Posted November 24, 2014, by Nathan Holth (webmaster [at] historicbridges [dot] org)

Hey, don't shoot the messenger. I don't work for either FDOT or Florida SHPO, and had absolutely no input into their findings, which can be referenced here:

I mostly just added this observation as an amusement (two cable stayed bridges in FL listed as eligible!!!), and it will also come in handy when arguing with PennDOT about why a 500 foot pin-connected Pennsylvania thru truss should be NRHP eligible. The statement of "exceptional significance" is a technical language of the National Register of Historic Places that allows for listing of structures less than the traditional 50 year threshold. It is NOT my wording for either cable stayed bridge. My description of these bridges would not be family appropriate.

Posted November 24, 2014, by CANALLER

Of all people, Nathan is the one that works on this page to point out this bridge is "exceptionally significant"? What could have happened inside his head to bring that edit out?

The only significant thing this bridge did was usher in an era of hideous segmental concrete viaducts and imitation suspension bridges. Great news for the folks at Figg, but as bland as can be in most cases.

Drew Bridge (Florida)
Posted November 20, 2014, by ArtS (asuckewer [at] knite [dot] com)

Good luck with your research Nathan.


Art S.

Drew Bridge (Florida)
Posted November 20, 2014, by Nathan Holth (webmaster [at] historicbridges [dot] org)


Yes, the Clays Ferry Bridge is a bridge from the same era I believe this bridge to be from. As far as builder, it is an interesting possibility, the similarities of the portal bracing are somewhat striking. The castings and connection details are quite a bit different. It does offer a potential direction for research however.

Drew Bridge (Florida)
Posted November 20, 2014, by ArtS (asuckewer [at] knite [dot] com)


Based on the design cues could it be of the same period and maker as this one:


Art S.

Posted November 19, 2014, by Nathan Holth (webmaster [at] historicbridges [dot] org)

This bridge is currently being repaired as seen last week. One of the operating struts was disconnected and held above by a crane. They seemed to be working on the pinions and things in the associated machinery house.

Posted November 19, 2014, by Nathan Holth (webmaster [at] historicbridges [dot] org)

This bridge is currently undergoing rehabilitation. It is closed to vehicular traffic, but one of the sidewalks remains open to pedestrians.

Drew Bridge (Florida)
Posted November 19, 2014, by Nathan Holth (webmaster [at] historicbridges [dot] org)

I visited this bridge and discovered it has cast iron struts and other fascinating details. Its unusual details and use of cast iron make it potentially one of the oldest surviving swing bridges in the USA. My analysis, findings, and photos are here:

Posted October 24, 2014, by Darren (dannytoro1 [at] gmail [dot] com)

The old St.John's River Toll bridge was built by Missouri Valley Bridge & Iron Co.; and designed by J. L. Harrington of Kansas City, Mo. Also quite a bit of the steelwork was prefabbed by Bethlehem Steel. This according to:

Also, if memory serves correctly, the structure itself stayed remarkably solid for a brackish water major bridge. However the main pilings had been badly undercut by the heavy current in this bend in the St.Johns.

Posted August 22, 2014, by Frank (ironworks7 [at] yahoo [dot] com)


I am the the bridge maintenance engineer and certified bridge inspector for the past 26 years.

The bridge is fully operational. The bridges NBI ratings, as of 2013, are as follows:

Deck = 6 Satisfactory

Superstructure = 6 Satisfactory

Substructure = 6 Satisfactory

Channel = 6 Satisfactory

Posted July 25, 2014, by Luke

They're likely going by road-only, hence why the railroad spans aren't factored in.

Posted July 25, 2014, by ArtS (asuckewer [at] knite [dot] com)


I'm not sure of Wikipedia Commons definition of oldest steel truss bridge, but I would think that the abandoned railroad bridges in Suwannee and Hillsborough counties should be considered older.


Thanks for trying to make this a friendly, encouraging and inclusive site.

(not sure why my name didn't post)

Posted July 25, 2014, by Anonymous


I'm not sure of Wikipedia Commons definition of oldest steel truss bridge, but I would think that the abandoned railroad bridges in Suwannee and Hillsborough counties should be considered older.


Thanks for trying to make this a friendly, encouraging and inclusive site.

Posted July 25, 2014, by Ralph Demars (rdemars1 [at] yahoo [dot] com)

"thee"? Who wrote that, a kid?

No offense whatsoever to the person who wrote that. Unless He/She's a kid. XD

Posted July 25, 2014, by Daisy (DaisyPinkerton [at] yahoo [dot] com)

Wikipedia commons has updated the file.

The Beaty bridge is no longer the second oldest steel truss bridge still standing in Florida. It is 'thee' oldest.

Posted July 19, 2014, by Clark Vance (cvance [at] dogmail [dot] com)
Posted July 15, 2014, by Luke Harden

I'd assume so?

Posted July 10, 2014, by Will (wilmercolon [at] yahoo [dot] com)

Although the bridge connects Pinellas county to Manatee county, the main bridge is actually located in Hillsborough County.

Posted July 9, 2014, by Anonymous

Old temporary Bridge

Posted July 6, 2014, by Douglas Butler

Need help with this one

Posted July 6, 2014, by Douglas Butler

I viewed it and it's the correct bridge and the bridge is in place and in sevice also the street view will be be changed thanks Don.

Posted July 4, 2014, by Don Morrison

Since Lansing Island is farther north than the mapped location, it's more likely that Lansing Island Bascule is actually on Lansing Island Drive at 28.164786, -80.607675

The waterway is probably a marina canal, possibly called Grand Canal.

I took the liberty of changing the coordinates. If you feel that this is in error, feel free to change them back. The streetview also may need to be changed/deleted, since it is located at the previous coordinates.

Posted July 2, 2014, by Anonymous

Is the crossing of the Bananna River correct?

Posted June 30, 2014, by James McCray (jamesinslocomb [at] yahoo [dot] com)

As through truss bridges in Florida are a rarity, finding one is significant. Anyone have any other info on this bridge?

Posted June 21, 2014, by Edward Tyson (edwardtyson1978 [at] yahoo [dot] com)

Actually this was a Bascule bridge according to these two photos found on the Florida Memory website. There's also some vintage pictures, videos and all sorts of stuff about the State of Florida. The website is

Posted May 21, 2014, by Chris Knight

It appears that one of the Truss Spans is in the Gulf Intact according to a Side Image Sonar Scan shown here: possibly used as an Artificial Reef.

Posted May 2, 2014, by Nels Raynor (bachsteel [at] me [dot] com)

What a perfect setting and a bridge that we at BACH specialize in

So if you want it to look untouched please allow us to help in restoring her we wouldn't let you down and the bridge would capture all it's formal glory without a bunch of welded plate and A325 bolts ....rivets and care

Posted May 1, 2014, by ArtS (asuckewer [at] knite [dot] com)

News of the weird:

This is a Chinese American news organization, I'm not sure if the audience is here or China.

Posted March 1, 2014, by NE2 (neroute2 [at] gmail [dot] com)


Posted February 25, 2014, by Nathan Holth (form3 [at] historicbridges [dot] org)

I found some plans online that states that "The existing Bridge bascule span over the New River (Bridge No. SX1013.8) is to be salvaged by careful disassembly of the bascule span into transportable components (by barge and/or truck) for the purpose of assembly at a new location in Park owned by the City of Fort Lauderdale." If this transpires, this would be an amazing and almost unheard of situation where a railroad bridge being replaced was preserved by relocation!

Posted February 20, 2014, by K. A. Erickson

From what I been able to uncover is that the State of Florida found the bridge to be deficient during an inspection back in 2007. The City of Marathon which owned the bridge immediately closed it.

The city figured it would be easier and cheaper to buy out any property owners that where upset by the cutoff of access than to actually make repairs to the bridge. Most took the money offered but one decided to file a lawsuit. That owner had a radio antenna on the south west, a notable square section.

After two years there was a settlement.

The bascule span that was previously locked in the upright position was soon removed. The now inaccessible properties on Boot Key bought out by the city are being transferred to a type of nature conservatory group.

Posted February 20, 2014, by Victor (vlbrunton [at] juno [dot] com)

Does anybody read these comments?

Very mysterious, both the bridge and Vaca Key. Here, and in Google Earth, there are "street views" of traffic crossing this bridge. But all aerial views suggest the draw span is missing. But that is not all.

It also appears that 931 is the only vehicular access to Vaca Key. And all aerial views show no traffic at all on the island.

Yet the island appears to have been platted with streets and utilities. But there are no buildings or cars on any of those streets.

What happened?

Posted February 10, 2014, by Steve T. (soflo360 [at] gmail [dot] com)

I posted a photo of the Royal Park Bridge on my photoblog - SoFlo360. Here is the link:

Posted January 28, 2014, by George Schonholtz (gschonholz [at] aol [dot] com)

Built when I was 9 years old. I am now 83! I live on Camino Real, very near bridge. Outmoded, very retro, funky. We love it. A keeper.

Posted January 18, 2014, by Bill curry (Wwcurry [at] yahoo [dot] com)

Unofficially called the KMI Memorial bridge

Posted January 1, 2014, by victor (vlbrunton [at] juno [dot] com)

A couple more pictures of the old Dupont (East Bay) Bridge.

I like these because they relate to the postcard and artist's rendition of the completed bridge.

The previous pictures I posted showed the ruins of the bridge from south to north; these pictures are of the bridge from north to south.


Posted December 29, 2013, by victor (vlbrunton [at] juno [dot] com)

Pictures and comment from 11 Dec 2013 are mine. Do not know why they are posted as "anonymous."

Also, the old bridge was known as the Dupont Bridge, a name also given to the new bridge.

I was a resident of Bay County circa 1973-1976, at which time the remains of the old Dupont Bridge were used as a fishing bridge.

Posted December 29, 2013, by victor (vlbrunton [at] juno [dot] com)

Also known as the Mathers Bridge. See Wikipedia.