Sunday, August 26, 2012

Providence River Bridge -- at night!

Providence River Bridge
I'm back!

My car tires were about to dissolve into the road unless I got them replaced, so until I could save up enough money for a new set, I haven't been going much of anywhere for the last month or so. But a dear friend was flying from Texas to Rhode Island for a conference, and I wasn't going to get to Providence on a bicycle.

After dinner, I was able to coerce him to come with me bridge hunting. I've taken pictures of the Providence River Bridge before, but... never at night.

Lit up, the bridge sparkles like a jewel on Providence's waterfront. It's so bright that local astronomers insisted it be turned off at 11PM so that the stars could be seen.


The Providence River Bridge, the widest network lattice arch bridge in the world, was built at a warehouse about fifteen miles down Narragansett Bay and transported up-river to its current spot. This move was the subject of the History Channel documentary, "Mega Movers: Really Big Bridges". Since I last wrote of this bridge in July, I've had a chance to watch this documentary. It's pretty incredible.

To move the bridge, they first had to construct four giant winches to lift the bridge onto specially constructed trucks with over a hundred wheels between them, that, incredibly slowly, inched the bridge onto two barges that were connected by steel bracing. These barges were then pushed by tugboats up the bay to Providence. Any misalignment would send the bridge into the bay.

Total professionals they were; the bridge made it without incident.

Thursday, August 2, 2012

Thompson Covered Bridge, West Swanzey, NH

West Swanzey / Thompson Covered Bridge
Sorry about the reflections. I wasn't using a lens hood and this is what happens.

The West Swanzey Covered Bridge, AKA the Thompson Bridge, was built in 1832 by Zadoc Taft for the princely sum of $523.27. Zadoc isn't a name you see every day. He's not even the most famous Zadoc Taft -- that honor goes to renowned sculptor Lorado Zadoc Taft.

Our Zadoc Taft, though, was a local boy, born, raised and died in the area. The Register of Historical Places entry for this bridge lists Taft as a master workman, but by the 1850 census, he called himself a blacksmith. Further information about Z. Taft isn't easily found; there was a Revolutionary War soldier by that name who lived in southern Massachusetts near where I grew up, apparently unrelated, and another around the same time who ran a mill in Bennington, Vermont, where my sister went to college. That could conceivably be the same person, as Richmond and Bennington were probably within a few hours travel by train, but it seems unlikely.


The Thompson Covered Bridge crosses the Ashuelot River, connecting the town of Swanzey with the village of West Swanzey. It's a two span, 155 foot long, single web Town lattice bridge. The sides are open and use the beautiful Town lattice as a decorative element. There is a sidewalk on the south side of the bridge; there apparently was another on the north side when the bridge was built. It's not known to me what happened to it.

By the early 1970s, increasing traffic was taking a toll on the wooden bridge. Although there is now another bridge nearby to carry trucks, buses and other heavy traffic, in the 70s the weight limit was six tons. School buses would drop their kids off on one side of the bridge, drive to the other, and weight for the kids to cross the bridge, board the bus, and continue on its way. Currently, the bridge is signed for only three tons of traffic -- one car at a time on the bridge's single lane.


The Thompson Covered Bridge is #5 in the southern New Hampshire covered bridge registry. Of all the covered bridges I've seen here in New England, this is the most beautiful and best preserved. It looked substantially similar to this in 1832, 180 years ago. Zadoc Taft should be proud.

Saturday, July 28, 2012

Ashton Viaduct, Cumberland-Lincoln, RI

The Ashton Viaduct crossing the Blackstone River
Usually a bridge like this has a lot of history behind it, but I can't even get a definite idea of its name. Some places call it the Ashton Bridge, some the Ashton Viaduct. I imagine it was associated with the nearby (like, if I turn to my right 90 degrees, it's right there) Ashton Village, which was once a thriving mill, so it must be at least a hundred years old, but... no information on how old it is.

I was biking on the Blackstone Valley Bikeway which stretches from Worcester, Massachusetts through to Cumberland, Rhode Island. I was just wanting to see how far I could get, maybe to where I grew up near Uxbridge, Mass., before we moved to New Hampshire. The Blackstone Valley was home.

Yeah, I knew the viaduct would be along the way, but still. I didn't come just for the bridge. Honestly.

The Ashton Mill
Told ya the mill was close.

Viaduct & bike bridge
The Ashton Viaduct is a five span open spandrel arch bridge crossing the Blackstone River, a river once called the most polluted river in the country with respect to toxic sediments, being used as it was as the industrial toilet for mills and factories from Worcester to Woonsocket. It is today still filled with pollutants. In that it shares a fate with the Housatonic River here in Connecticut -- enjoy at your own risk.

Neither river is likely to ever fully recover.

Not the Albion Bridge
Further along the bikeway, I found a pony truss bridge crossing the river. It looked in great condition, better than I'd ever seen one from the age of iron bridges. It didn't look to be one of the Berlin Iron Bridge Company's bridges -- most of theirs are lenticular.

Boston Bridge Works Builders
These bridges were built by the Boston Bridge Works... at least originally.

Turns out that Rhode Island  replaced the bridge, then bolted on parts of the old bridge so it would keep some of its old character. According to the contractor, Gordon R. Archibald Inc Civil Engineering,
To maintain the historic value of this river crossing, Gordon R. Archibald, Inc. developed the innovative concept of 'aesthetic rehabilitation.' Under this concept, the trusses were refurbished and placed astride a new, two-dimensional steel grid superstructure. The steel grid carries all of the new superstructure and vehicular loadings, leaving the trusses to carry only the weight of and loadings on the sidewalks. In this way, the reconstructed bridge can carry contemporary traffic loadings, while its 19th-century visual quality is preserved for future generations.
So I'm not sure how I feel about that. I guess it's good that they didn't just replace it with a slab of steel and concrete. They replaced it with a slab of steel and concrete and then put it in a dress.



Sunday, July 22, 2012

Contoocook Railroad Bridge, Contoocook, NH

Contoocook Covered Bridge
The Contoocook Covered Bridge, crossing the Contoocook River in the Contoocook village part of Hopkinton, New Hampshire, bills itself as the "oldest surviving covered railroad bridge in the world". That's a lot of qualifications, but it's still an impressive piece of covered bridge history.

Constructed in 1889 on the piers of an earlier bridge, it was built at a time when New England was turning to iron bridges, such as those built by the famous Berlin Iron Bridge Company. Its relative newness could be responsible for its longevity, maybe.

This bridge was probably designed by the Boston & Maine Railroad engineer Jonathan Parker Snow and built by carpenter David Hazelton. The B&M railroad used wooden bridges long after most other railroads had moved to iron.

Tradition. It's New England!

Double Town lattice
The Contoocook covered railroad bridge sports a rather unique double Town lattice construction, with a second lattice bolted to the outside of the first. This probably helped take the weight of trains as they came through to the nearby depot. I have not seen that in any other covered bridge, but Wikipedia claims it wasn't uncommon in northern New England and a few other examples survive to this day.

This bridge was used as a working railroad bridge to 1962, weathering a number of disasters, including the 1938 hurricane that nearly wiped out Providence, Rhode Island. Between 1962 and 1990 it was used as a warehouse. In 2006, the National Society for the Preservation of Covered Bridges paid for some necessary upgrades, and in 2010 the NH Department of Transportation modernized the lighting and fire suppression system -- you can see the red fire alarm button midway down the bridge wall in the picture above.

Portal to Contoocook Covered Bridge
I used to live twenty miles from this bridge when I was a kid, but I didn't know it even existed until a couple weeks ago. Used to ride to Hopkinton on my bike a lot after they built this really nice bike path that follows Interstate 89 north. But it would have been being used as a warehouse back then, anyway. The pictures on the Library of Congress website (which is down at the moment, so no links) show it filled with junk. Now it stands as the centerpiece and symbol of Contoocook village.


The bridge isn't hard to get to; if you're anywhere in the Concord, NH area, get to I-89, go north to route 127 and follow the road into Contoocook. There is parking available both at the adjoining depot and a restaurant on the other end of the bridge.


Friday, July 20, 2012

Now starring in The Dark Knight Rises: The Queensboro Bridge

Chrysler Building & Queensboro/59th Street Bridge
I hadn't been to the top of the Empire State Building since I was a kid, and my daughter had never been, so Wednesday we made the trip. Even though the the air was hazy with humidity, it was a great view and I got some wonderful pictures of the lower Manhattan bridges before the thunderstorms hit.

Closest to us was the Ed Koch Queensboro/59th Street Bridge, looking from this height like a kid's popsicle stick bridge.

This morning I went to see the new Batman movie, the Dark Knight Rises, in which many of the bridges of Manhattan play a pivotal role -- and the Queensboro Bridge, most of all. I'm not going to spoil the movie, but if you've been a fan of Manhattan's bridges, you'll probably enjoy the focus on them in the movie.

Except -- one tiny, tiny thing. They moved the bridge. They moved the bridge. In actual real Manhattan, the bridge is midtown, connecting the island with Queens. In the movie's climactic scene, the bridge has apparently replaced the Verrazano Narrows Bridge, Staten Island has disappeared entirely, and the Marine Parkway Bridge now connects to Manhattan. Or something. And is now reddish instead of gray.

When I got home I checked a NYC map just to be sure I wasn't crazy, but I was right. They moved the bridge.

Didn't they think anyone would notice?

Found a story with some good additional links about the filming on the Queensboro Bridge last autumn.

Thursday, July 19, 2012

Railroad bridges, Hooksett, NH

Baltimore truss railroad bridge
I wasn't going to write this picture up. There's nothing particularly historical about this bridge. I didn't even know this bridge existed.

I'm on vacation, and I'd made a promise to visit my parents graves in Concord, New Hampshire, at some point during my week off. My dad would never, ever pay a toll if he could avoid it, and particularly on I-93 between Manchester and Concord. He'd always take the back road, Route 3A, through Hooksett and Bow and into Concord, where we lived.

That's how we kids were brought up. So I was toodling along on 3A, which follows the Merrimack River, just casually looking over now and again because it's a beautiful river and it was my river growing up. Through the trees, I saw an old iron railroad bridge and figured I'd better stop by.

I didn't recognize the truss design; I looked it up when I got home and saw it was a "Baltimore truss". The railroad bridges here in Connecticut all seem to be Pratt truss, so that was new.


This closed-off railroad bridge crosses the Merrimack nearly parallel to the Baltimore truss bridge. This one appears to be a three span Pratt truss bridge with extra bracing. Or it could be a Warren truss. I don't know. The cool thing is that these bridges, right next to each other, were made using entirely different designs.

Lots of people seem to have photographed these bridges (add me to that list) and/or jumped from them, but I'm not able to find any information about them online.

Just... back roads New Hampshire, I guess.

Sunday, July 15, 2012

Mid-Hudson Bridge, Poughkeepsie-Highland, NY

Franklin D. Roosevelt Mid-Hudson Bridge from Walkway Over the Hudson
I'm listening to Joseph Bertolozzi explain to me the various sounds the Mid-Hudson Bridge makes when you hit various parts of it with various kinds of hammers and mallets. This is the "album only" track from his 2009 album "Bridge Music", percussion music composed and played solely with sounds produced by the Mid-Hudson Bridge.

Bridge Music

You can hear this music on the bridge itself at the various listening stations, or on the radio.


Mid-Hudson Bridge and Walkway Over the Hudson
Because there were no fixed bridges across the Hudson south of Albany at the time, the Mid-Hudson Bridge   between Poughkeepsie and Highland was proposed in 1923 and opened in 1930 to fill a desperate need for road access. Then-governor Franklin D. Roosevelt, who grew up in nearby Hyde Park, was on hand for the opening of the bridge which would, in 1994, be renamed after him.

Detail of the underside of the bridge
The bridge is 3,000 feet long and rises 135 feet above the Hudson. It carries state routes 55 and 44 over the river, and the toll is $1.50 heading east. I didn't have to pay because I took my bike this time.

The pedestrian walkway on the north side is part of a loop trail that connects with the linear park on the old Poughkeepsie Railroad Bridge, now known as the Walkway Over the Hudson, and the topic of another post. Plans are to eventually connect this loop trail -- about three miles -- with the Dutchess County Rail Trail system.

The cable stays on the west end of the bridge
Parking is available at both ends of the Walkway Over the Hudson, with easy access to both the bridges. The pictures from ground level, below the bridges, were at the end of Mile Hill Road, which leads to a small isolated riverfront community.

If you're on a bicycle, you really have to respect roads called Long Hill Road, Mile Hill Road and so on, because... they aren't lying. Mile Hill Road would have been a fun descent if I were any sort of fan of screaming down strange curvy roads at 50 mph, but I have to admit I was clenching the brakes the whole way down. And I walked the bike the whole way back up, too. I'm not proud.

There were a couple more bridges I wanted to get this trip, but I'd been in the sun long enough for one day. The Rip Van Winkle Bridge is just going to have to wait.