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Posted September 21, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

Awesome. Thanks so much for the update! Glad to see a picture, as well! The through-trusses are dwindling in our state, so its good to see one extant and somewhat used.

Posted September 19, 2017, by Tony Dillon (spansaver [at] hotmail [dot] com)

Cliff, I just gave a shout out to the Tensas River NWR and talked to a gentleman named Brent. The bridge is indeed still extant and is used mainly for ATV traffic in the park. He said he's only been there for a couple years but some of the other employees have like 30 or more years tenure. He said he would talk to them and let me know any other info he can find.

Posted September 19, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

Historic Aerials confirms this was on the Jefferson Highway, as you can clearly make out the old alignment that continued through Sparrow Lane's intersection with Kateland Road on the 1955 imagery.

Historic Aerials may be my favorite web page :)

Posted September 19, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

I gotta say, I'm not sure this bridge is extant, much less open to traffic. Maybe a local will chime in, as this is a few hours north of me in Cenla.

Posted September 15, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

Now I am even more intrigued by the abandoned bridge northwest of here on the old alignment of highway 1. Carnahan Creek is about as big as Bayou Jean de Jean and is a low area. The bridge is visible on Google Earth. Makes me wonder if it is also a deck truss.

Posted September 11, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

Historic Aerials has a great image of this bridge in its prime in 1971.

Tioga Bridge (Louisiana)
Posted September 11, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

Someone better versed in the Jefferson Highway please chime in. This bridge was built in 1931 on US 71 / SR 1, which was designated on the Jefferson Highway. Therefore, is this considered a part of the Jefferson Highway, or since it was built after the route was numbered, it is NOT part of the Jefferson Highway?

Posted August 4, 2017, by Amy Squitieri (AMY [dot] SQUITIERI [at] MEADHUNT [dot] COM)

This bridge has been determined eligible for the National Register and is categorized in the state's Programmatic Agreement as a Preservation Candidate. More information is available here http://wwwsp.dotd.la.gov/Inside_LaDOTD/Divisions/Engineering...

Posted August 2, 2017, by kenneth (supernova_2010us [at] hotmail [dot] com)

i agree it is one of two swing bridges. i saw them both open when they moved the riverboat casinos here

Posted July 30, 2017, by Anonymous

very narrow bridge for todays vehicles

Posted July 10, 2017, by kenneth (supernova_2010us [at] hotmail [dot] com)

its definatly abandoned. ive lived there my whole life and never seen a train crossing it nor running on that same line through downtown

Posted June 20, 2017, by daniel purpera (danielpurper10 [at] gmail [dot] com)

the dude who asked how far the water is from the deck is not bright because the water level changes

Posted June 16, 2017, by Alan Walker (awalker1829 [at] yahoo [dot] com)

This bridge is the old New Orleans and North Eastern Railroad bridge. When it was originally constructed, it was unfilled. The bridge (as is) has had most of it's length filled. Originally, the total length of the bridge was approximately 21 miles in length (including approaches). Filling was completed in 1896, leaving the bridge as it is today.

Posted June 5, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

Interesting if the date is accurate. State Route 14 was designated in the 20s, which was the predecessor to US 165. Which would mean this bridge predates the state highway, but likely carried the highway once it was designated. Would like to hear from locals on this one (as y'all are aware I'm fascinated with US 165 / SR 14)

US 90 Overpass (Louisiana)
Posted May 21, 2017, by G Falcon (geofffalcon [at] yahoo [dot] com)

Here's a link to a photo of the old bridge:

http://louisdl.louislibraries.org/cdm/ref/collection/LHP/id/...

Posted May 10, 2017, by Clark Vance (cvance [at] dogmail [dot] com)

Any reason you visit here on May 10th?

Posted May 10, 2017, by Jennifer Brindle (jbrindle57 [at] me [dot] com)

I beg your pardon sir. Carl Allen, my grandfather's brother, was living in Elton, Louisiana at the time and to my knowledge never made a trip to the site. If he oversaw construction, he did so from a few hundred miles away.

My grandfather, his wife, my brother and I were living in Golden Meadow during construction, relocated there by HL Allen and Sons. My grandmother brought me often to the site where Edgar, called "the boss" by the crew, worked every day. I still have a small block of concrete cut from that bridge.

While a beautiful curved bridge, the Leeville Bridge was a b**** to cross!

Posted May 10, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

Bridge is closed and being removed. I made a trip this way and this bridge was supposed to be the grand finale. I do have pics of two other of the remaining thru trusses up this way, though. I'll upload them shortly. When I get on my computer I'll update this bridge's status if nobody beats me to it

Posted May 5, 2017, by Tony billiot (Y97not [at] hotmail [dot] com)

Will the bridge be open today for marine traffic

Posted April 29, 2017, by Douglas Butler

Just to let you know this is my work of mine!!!!!

Posted April 25, 2017, by Jason Hoffman (504roadtrips [at] gmail [dot] com)

I drove by the Valentine Bridge on April 15, 2017 and it was in the "open to marine traffic" position with the approach barricaded. Seems that it's closed indefinitely.

http://www.lafourchegov.org/Home/Components/News/News/2957/3...

Posted April 17, 2017, by Jared M.

It's VHF channel 13

Posted April 17, 2017, by Jared M.

Good timing on getting those photos. I guess the wood pilings gave out. It looked like the steel was still good.

Posted April 10, 2017, by Anonymous

Moveable up; removable down. Or vice-versa.

Posted April 10, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

How is one span "removable"? Curious how this works.

Posted April 6, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

Based on historic aerials, I'm thinking this bridge was bypassed in 1955, but remained open for a time later. However I'm hesitant to change the information until a local chimes in.

Posted April 4, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

There is at least one and likely two more similar, bypassed bridges a few miles north of this, but both are now blocked by private property or posted signs, at the least. Historic aerials confirms this, and current GE imagery shows that at least one is extant.

Posted March 31, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

From reviewing historic aerials, I stand corrected RE: my previous comment. The abandoned bridge here served the Jefferson Highway, and the bridge was built BEFORE highway 71 was straightened in the late 1960s. Historic aerials shows both bridges extant in 1955.

Aloha Bridge (Louisiana)
Posted March 31, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

From surveying historical aerials, I believe this bridge predates US 71 and was in fact part of the Jefferson Highway. The 1955 aerial shows the current bridge with a one lane road using this bridge. This would confirm a build date of the mid to late 1910s or very early 1920s.

Posted March 31, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

Looking at historic aerials, this bridge was still in use in 1955, but by 1971 US 71 had clearly been rerouted and the old alignment abandoned. If the "new" bridge was built in 1969 I think it is safe to assume this bridge was bypassed and closed around this same time. The road bed had already been torn up in the 1971 aerial.

Posted March 30, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

The flooding last year appears to have destroyed the western approach. I'll add photos when I have the chance later today.

Posted March 30, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

Also, I think the coordinates are inaccurate for this former bridge. If you look at Google Earth, the old rail bed and the old piers are significantly north of where the marker is placed.

Posted March 11, 2017, by george oakley (georgeoakley49 [at] yahoo [dot] com)

I noticed the sign.Drinking water protection area?The sign would make it obvious for a drunk who had to pee,wouldn't it?Just a little humor.

Posted March 10, 2017, by Jason Hoffman (504roadtrips [at] gmail [dot] com)

This bridge is no longer open. The best picture I have is a still from my dashcam, and unfortunately, I don't have any better detail, as I completely missed the existence of this bridge when I drove by it, and it wasn't until I was going through the dashcam footage that I saw a bridge on the map that I didn't immediately see in the video.

The "approach" to the bridge has been removed and grass now grows there, and there's a chain link fence barring access to the bridge.

Streetview imagery along LA-182 hasn't been updated in nearly 6 years.

Posted March 7, 2017, by george oakley (georgeoakley49 [at] yahoo [dot] com)

Thanks Luke for the information.Settles that question.

Posted March 6, 2017, by Luke

Based on further research, there was a railroad swing bridge here belonging to the Texas & Pacific.

What threw me off is the use of multiple circular piers. Normally, only one is used on the swing span.

Sadly, the blogspot page this images comes from/the ones that show any info are invite-only.

Posted March 6, 2017, by george oakley (georgeoakley49 [at] yahoo [dot] com)

Cliff,i think you are right.Just looked and saw 3 circular piers and 1 square pier in the Sugar Mill Chute.Good eye.Not dolphins that's for sure

Posted March 5, 2017, by Anonymous

Obank C.S. actually means Overbank Control Structure.

Was confused - had to research this.

Posted March 4, 2017, by Luke

I think those may be dolphins https://en.wikipedia.org/wiki/Dolphin_(structure), not piers.

Posted March 4, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

Quick pic

Posted March 4, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

Quickie

Posted March 4, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

Quick shots

Posted March 4, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

Sorry for no more pictures. Got caught by rain. Apparently an older bridge crossed here once upon a time. Check out the old piers.

Posted March 1, 2017, by Don Morrison

This article:

http://www.nola.com/politics/index.ssf/2010/06/bayou_liberty...

...states that a wooden, hand cranked swing bridge was built at this location in 1941, and replaced by a pontoon bridge in the early 80s, which was in turn replaced with the current bridge around 2009.

Posted February 28, 2017, by Douglas Butler

Is this hand cranked operating bridge is the right location?

Posted February 19, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

Couple more pics.

Posted February 19, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

As is the case west at little river, the piers still exist in the river.

Posted February 19, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

The piers still exist. Several bridges and small tressles exist along the grade all the way to feriday.

Rita Bridge (Louisiana)
Posted February 2, 2017, by Adam (741996 [at] gmail [dot] com)

This was the bridge used in the final scene of the 2013 movie Homefront. The fence on the east side was added by the film crew.

Posted January 12, 2017, by Clark Vance (cvance [at] dogmail [dot] com)

Prior to the designation of Route 71 this may have been a part of the Jefferson Highway that preceded 71. A detailed map of the Jefferson Highway might show this. 492 was definitely a part of the Jefferson Highway.

Posted January 11, 2017, by Anonymous

What route did this bridge carry, then? I don't have good copies of the old state route maps. I just guessed US 71 based on the age.

Posted January 9, 2017, by Clark Vance (cvance [at] dogmail [dot] com)

The 1932 Boyce quad shows US 71 using the alignment of 492 to the NE. That alignment may have been created in 1926 when US 71 was established.

Both the topo and google agree that this is called Bayou Rigolette. I don't know where the NBI got Marteau.

Posted January 8, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

Neat old bridge

Posted January 8, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

Sorry for no more closer shots. Was running out of daylight far from home ;)

New ugly bridge is well on its way, though this old bridge is a bit scary with the lack of modern guardrails or curbs.

Posted January 8, 2017, by Cliff Darby (clif30 [at] hotmail [dot] com)

Likely another fine example of the original route of US 71.

Posted December 31, 2016, by stewart hawley (sdhawley1 [at] gmail [dot] com)

What VHF channel or phone # do you use to open the bridge

Posted December 23, 2016, by Keli Rylance (kelerin [at] gmail [dot] com)

& another from the same Employee's Bulletin. Bridge described as reinforced concrete connector of the Old Spanish Trail highway.

Posted December 23, 2016, by Keli Rylance (kelerin [at] gmail [dot] com)

There is a very good description and photographic reproduction of the bridge's bascule section in the January 1917 issue of the Employees' Bulletin of Robert W. Hunt & Company, Engineers. [public domain].

Posted November 24, 2016, by Cliff Darby (clif30 [at] hotmail [dot] com)

Very neat. Been riding this area a lot lately but didn't know this existed. Curious as to the history of this bridge. Was this an old alignment of US71 or LA8?

Posted November 24, 2016, by Cliff Darby (clif30 [at] hotmail [dot] com)

Bridge no longer exists. Not sure if the major flooding back in April took it out or what, but the only remains are the supports. The entire deck is gone, but the pilots still are full height. Which makes me think the bridge was a victim of the record floods. I have a photo but my silly motorcycle is in the way ;)

Posted October 25, 2016, by Brian J. Patterson (pattersonbj [at] earthlink [dot] net)

"Chef Menteur," which is part of the place-name for several geographic features in the Orleans Parish area including this bridge, is a French phrase that translates to "Lying Chief." This is commonly understood to derive from the Choctaw phrase of the same meaning, "oulabe mingo." This was NOT a nice phrase with the Choctaw, who were famed for hating liars. Depending on your historical source, this appellation was given to former French Colonial Governor Louis Belcourt, Chevalier de Kerlerec after violating a treaty with them; the Mississippi River, whose path through the Delta Region was notoriously untrustworthy before the levees were built; or a deposed Choctaw Chief whose other names are lost to history. This possibly mythical "Chef Menteur" was exiled by the Choctaw to what is now known as the Point aux Herbes" area of the shore of Lake Pontchartrain.

Posted October 17, 2016, by Nathan Holth (webmaster [at] historicbridges [dot] org)

I grew up in Port Huron Michigan and the boats used to just blast their horn to get the bridgetender's attention! As long as it was on the half hour or hour the tender would lift the bridge.

If you have concerns that the operation of the bridge is not being conducted correctly, I suspect you would want to contact the Coast Guard as they should have enforcement jurisdiction in this matter.

Posted October 16, 2016, by Cody guillory (Codyguillory19 [at] gmail [dot] com)

To whom it may concern,

We come through here pretty often an it never fails we have to call for 20 min. On top of getting other bridges to call their phone an still get no answer. They need to work on answering their radio more an quicker

Posted August 16, 2016, by gfalcon (geofffalcon [at] yahoo [dot] com)

Actually it was replaced in 1995. In 1975, a parallel prestressed stringer bridge was built for westbound traffic, creating two lanes for each direction.

Posted August 15, 2016, by Vince Punaro (punarov [at] aol [dot] com)

possibly this bridge was designed by Ben L. Goepfert, P.E. for Shell Oil Company, based on information provided by another Shell engineer. Mr. Goepfert, my father-in-law, enjoyed a lengthy career with Shell, from the early 1950's to 1980's.

thanks for the posting and any additional information.

V. Punaro

Posted August 13, 2016, by Clark Vance (cvance [at] dogmail [dot] com)

Big Choctaw Bayou is in Tensas Parish but I don't find any ID for the rails in the area.

Posted August 12, 2016, by Douglas Butler

I'm trying to figure out where this lift bridge at if it's removed or still in operation here is the actual pictures from bridge engineering book from JAL Waddell

Posted August 10, 2016, by Darrell Berry (darrell [dot] berry [at] meadhunt [dot] com)

Bridge length is actually 370 feet. The 20' long concrete approach slabs at each end of the bridge are not contributing elements to the bridge length.

Posted July 14, 2016, by Brad Smith (gaberdine [at] hotmail [dot] com)
Posted July 2, 2016, by Helen Boudreaux (helenboudreaux [at] juno [dot] com)

1) Are there any pictures from the time when the pontoon bridge was built and first put into service?

2) What was being used for the locals to cross the canal prior to the pontoon bridge being built?

3) Were there any dwellings close by the bridge? Did people live close by?

3) I have heard say that traffic would cross on a barge.

I can see the bridge from my porch and am very interested in its history and the area prior my living here. I have lived here since 1976. Thank you. Helen Boudreaux

337-280-1988

Posted July 2, 2016, by Helen Boudreaux (helenboudreaux [at] juno [dot] com)

1) Are there any pictures from the time when the pontoon bridge was built and first put into service?

2) What was being used for the locals to cross the canal prior to the pontoon bridge being built?

3) Were there any dwellings close by the bridge? Did people live close by?

3) I have heard say that traffic would cross on a barge.

I can see the bridge from my porch and am very interested in its history and the area prior my living here. I have lived here since 1976. Thank you. Helen Boudreaux

337-280-1988

Posted June 25, 2016, by Gary Campos (gary [dot] campos [at] verizon [dot] net)

The bridge opened on April 12, 1977.

Posted June 23, 2016, by Kelly McClanahan

All I have ever seen of this bridge is in pictures. However, in one of my [KCS] Railroad books, this is the "ruling grade" (steepest) for that sub-division. In other words, the steepest grade in the state of LA for the Kansas City Southern, is a bridge.

Posted June 23, 2016, by Roger Deschner (rogerdeschner [at] gmail [dot] com)

There's plenty of good photos of the top side of this bridge (especially thanks to Royce and Bobette Hailey!) but few underneath. So I hope to have done that on a recent visit.

It's a fascinating, gigantic bridge, on which Baton Rouge hopes to route more traffic after the current rehabilitation is complete, due to severe congestion on the I-10 bridge. Compared to I-10, the US 190 HPL bridge is relatively under-utilized. Route LA-1, which connects the west ends of both this bridge and the I-10 bridge, has been widened to 4 lanes. Airline Highway and LA-1 now form a complete loop around the north side of metro Baton Rouge, across this bridge, bypassing the congestion on I-10.

So this latest chapter in the history of the Baton Rouge HPL bridge parallels (again) the history of the New Orleans HPL bridge, which was recently rehabilitated to relieve traffic congestion on the other, newer, Mississippi River bridges.

Posted May 23, 2016, by Tim Westcott (tim [at] westcott [dot] net)

My grandfather built this bridge as a member of the CCC in 1933-34. Attached is a picture

Posted May 19, 2016, by Luke

Wikimedia marks the image as the Seabrook railroad bridge.

https://commons.wikimedia.org/wiki/Category:Seabrook_Railroa...

This image is from the same collection and referred to by a commenter as the St. Claude Avenue bridge, though: https://www.flickr.com/photos/teamneworleans/4327948977/in/a...

Posted May 19, 2016, by Luke

The caption on Wikipedia states that the bridge is near the Halfway House, which according to http://www.old-new-orleans.com/NO_Halfway_House.html was on City Park Avenue

Posted May 19, 2016, by Douglas Butler

This picture you posted is the Claude Avenue bridge

Posted May 19, 2016, by Douglas Butler

Hey Luke that is not the City Park Avenue bridge them pictures are the wrong pictures those pictures goes to the Tennison bridge page.

Posted May 13, 2016, by Anonymous

Bridge was constructed in the 1920's, however, it was moved to its current location in the 1960s.

Posted May 9, 2016, by gfalcon (geofffalcon [at] yahoo [dot] com)

Louisiana sure did like to use steel "truss boxes" to support their bridges in lieu of concrete pilings during the 1950's.

Posted May 9, 2016, by gfalcon (geofffalcon [at] yahoo [dot] com)

This bridge has a weird aspect to it.... all of the eastern approaches, on-ramps, and elevated roadways were of a steel stringer construction. But on the west side of the bridge, all of those approaches and on-ramps utilized the newer prestressed concrete girder technology. Makes me wonder if the western portion of the bridge (Port Allen side) was the last part of the bridge to be built.

Posted April 9, 2016, by Pm (christiandrumr80 [at] aol [dot] com)

That is amazing history to know. Thanks for Sharing! Even though I worked out at Stennis for a period of time, I never knew about the NOVA rocket, nor the original purpose of the NOVA rocket being the driving specs for the i-10 bridge being built so tall, with a steel grate. This bridge still intrigues me to this day. I would love to see more history / pictures / schematics of it; if such a thing is around. My interest in it started (One day when I was 8/9ish) when we were in a traffic jam going from Louisiana to MS (late 80's). We were going along at a snail's pace (stop and go) because of an accident. Spending a few minutes stopped on that grate, it was the time I realized just how far up we were and why they heck put a draw bridge grate up this high - while looking down to the Pearl river below. In my mind (as a child) it wasn't like the hwy 90 Bay St. Louis, MS draw bridge and made no cognitive sense why there would be a draw bridge. No gates, no control house and no obvious way to open it made it more of a mystery and more of a reason I wanted to know more about it and bridges in general.

Posted April 7, 2016, by J B Evans (brynffyl [at] centurylink [dot] net)

Picture taken in 1965.

Posted January 3, 2016, by Anonymous (jobear1123 [at] aol [dot] com)

The bridge you are refering to crossed Choctaw Bayou in West Baton Rouge Parish, not Poydras Bayou which is also in West Baton Rouge Parish.

Posted December 1, 2015, by Jack Green (green8636 [at] bellsouth [dot] net)

Spans Big Creek

Posted November 19, 2015, by Donnie LeBoeuf (Zork70037 [at] yahoo [dot] com)

I've heard stories that a train plunged into the river off the old swing span and the the train engine was never found or retrieved due to it sinking in the mud on the bottom of the Atchafalya River. Is there any truth to this story??? I've never found anything on it...

Posted November 11, 2015, by Douglas Butler

try to figure out where is the previous pedestrian drawbridge.

US 80 Bridge (Louisiana)
Posted November 6, 2015, by David Backlin (us71 [at] cox [dot] net)

New bridge under construction just to the north of current bridge will remove the double curve

Posted November 4, 2015, by Jay Schmitt (jaybird70460 [at] yahoo [dot] com)

This bridge was upgraded I believe in the early to mid 80's to meet Interstate standards for a route that never happened. Was going to be I-410 and a beltway, but ended up as the I-510 spur we have today.

Posted November 4, 2015, by Jay Schmitt (jaybird70460 [at] yahoo [dot] com)

This bridge was upgraded I believe in the early to mid 80's to meet Interstate standards for a route that never happened. Was going to be I-410 and a beltway, but ended up as the I-510 spur we have today.

Posted November 4, 2015, by Jay Schmitt (Jaybird70460 [at] yahoo [dot] com)

I used to love going over this bridge as a kid. You'd get a bit of a rush over the hump.

Posted October 20, 2015, by Nathan Holth (webmaster [at] historicbridges [dot] org)

Historic Bridge Inventory lists this as a trunnion bascule, but the builder is listed as unknown...

Posted September 23, 2015, by bill steinkampf (bsteinkampf [at] gmail [dot] com)

Correction: The late Carl Allen, Edgar's brother, led construction of this bridge.

Posted September 16, 2015, by Nathan Holth (webmaster [at] historicbridges [dot] org)

Louisiana is right there with the state of Maine for a completely non-existant preservation track record, and a complete unwillingness to discuss preservation, all fueled by misinformation about feasibility and poor assessments of historic significance. Both states are essentially a "lost cause" when it comes to preservation and unless major change occurs, both states will eventually have no historic bridges of any kind.

Posted September 16, 2015, by Matt Lohry

How stupid. All of the reasons that they cited for demolishing this bridge are unacceptable. All of the reasons are related to functional obsolescence, not structural deficiency. This would have made a perfect bicycle & pedestrian bridge with minimal effort, but obviously the powers that be thought otherwise...

Posted September 16, 2015, by Robby Fisher (daisyfisf [at] Gmail [dot] com)

the Ok Allen bridge will be demolished on Saturday September 19 2015

Posted September 7, 2015, by Cody Guillory (Codyguillory19 [at] gmail [dot] com)

To whom it may concern, y'all either need new radios or post a phone number so we can call to get a opening. We call on the radio for 15 min. With no answer.

Thanks in advance

Posted July 24, 2015, by clay manly (cmanly [at] bellsouth [dot] net)

New photo

Posted May 24, 2015, by Lee A. Gautreaux (railgoat [at] bellsouth [dot] net)

For further clarification, the westernmost through span which had previously served as the swing span prior to the installation of the center vertical lift span no longer functions as a draw span. The rails have been permanently welded together and the swing mechanism has been permanently disabled. All marine traffic that cannot travel under the bridge must use the center lift span.