1925,1986+2009 MO-240 Bridges over Missouri River at Glasgow, MO

Highway: (Archived Bridge Hunter; Historic Bridges; Satellite)

The adjacent bridge is the C&A Bridge.

Missouri's Historic Highways posted two photos with the comment: "Glasgow Bridge."

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[Note the powerline towers. HistoricBridges explains: "One additional overlooked detail to note about this bridge is it had unusual riveted towers on top of the truss which held electrical wires. This was an unusual feature, and since the towers appeared to be riveted and original, they were a significant and unique historic detail."]

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wikiwand
"The Glasgow Bridge was five-span through truss bridge over the Missouri River on Route 240...It was built in 1925 and rehabilitated in 1986. Its main span was 343.7 feet [104.8m] and its total length was 2,243.5 feet [683.8m]. It had a deck width of 20.3 feet [6.2m] and vertical clearance of 14.8 feet [4.5m]. It was narrowed to a single lane in its final few years (with stoplights on either side) before being closed and replaced in 2008-09. The new bridge reopened in September 2009 and the project was completed in autumn of that year."

krcgtv
"Thu, 24 Sep 2009 11:27:16 GMT — The Missouri Department of Transportation has re-opened the Missouri River Bridge at Glasgow. The bridge has been closed since August of last year [over a year] for structural repairs. That forced commuters either to take a ferry across the river, or drive hundreds of miles out of their way to get to the other side."

MoDOT did an economic impact of the closure. The traffic volume was 1,198 vehicles per day. [MoDOT]

Missouri State Archives Flickr, public domain
Pouring the concrete floor on the Missouri River bridge at Glasgow.

rasmussengroup
Only the superstructure was replaced. The original piers were reused. Reusing the piers would explain why this $14m project closed the bridge for over a year.
"The main river span is a three-span continuous parallel flange steel plate three girder superstructure system. The approach spans were also steel plate girders."

WillettHofmann
[I wonder how long it took to clear the navigation channel.]
The girders were 9'2" (2.8m) tall.

MoDOT did document the bridge before they blew it up.

HistoricBridgeFoundation, p1

A good view of a high-voltage power line tower. Note that a lower voltage power line was cantilevered from the side. The railroad bridge on the right is still standing.

HistoricBridgeFoundation, 100, rotated

2022 2.2km (1.4 mile) Tseung Kwan O – Lam Tin Tunnel in Hong Kong

West portal: (Satellite, it was still under construction when I accessed it.)

East portal: (Satellite)

I've seen spaghetti interchanges before, but this is the first time I've seen an interchange deep in a hole. This interchange is the connection of the west portal of this Tseung Kwan O – Lam Tin Tunnel (tko-ltt) on the right with the east portal of the Cha Kwo Ling(CKL) Tunnel, which is still being built, on the left. The ramps coming up from that tunnel-to-tunnel connection provide access to the Eastern Harbour Crossing Tunnel and the local roads. This hole also contains ventilation and administration buildings.

td.gov.ky

tko-ltt_overview

The east portal is easy to understand. It simply connects to the west end of the Tseung Kwan O Cross Bay Bridge.

tko-ltt_photos, Dec 2022

Another view of the west portal. Effectively, they are building a new expressway in a tunnel along the bay. But here they daylight that new tunnel to build an interchange with the local roads and the existing Eastern Harbour Crossing Tunnel. By daylighting, I mean they dug a hole in the hill down to the grade level of the new tunnels.

tko-ltt_photos, Dec 2022

The satellite map caught them still digging the hole.

Satellite

I zoomed into the lower-left part of the above to show the temporary bridge for a haul road. Look at the queue of trucks waiting to backup and dump dirt directly into a barge.

Satellite

They plan to add a lot of landscaping. Evidently the greenery helps suppress the road noise.

roadtraffic-technology
"The tunnel is being constructed using either the mechanical method or the conventional drill and blast method, depending on geological conditions and site constraints."

I think the whole tunnel was done with the drill and blast method. I saw no evidence that a tunnel-boring-machine was built for these bores. I did see evidence that blasting was done.

aurecongroup
"Aurecon utilized the GIS platform to map out the location of the buildings that might get affected by the drill and blast work."

aurecongroup
"Aurecon's Steven Haslemore proposed a spatial solution that replaced the manual drill and blast calculations being conducted by the team."

Another vision of the landscaping. When I saw that an interchange on the east side of the tunnel was built over water, it occurred to me that blowing away the side of a mountain is one way to get the needed land in a very dense urban area.

LeightonAsia

Unlike some of the very impressive infrastructure work that China is doing in the western part of the country, the rush hour traffic on the bridge that connects to this tunnel shows that there is heavy traffic in this area.

Highway Engineering Discoveries posted via Dennis DeBruler

2022 1.8km (1.1 mile) Tseung Kwan O Cross Bay Bridge over Junk Bay in Hong Kong

(Satellite, 2,126 photos)

This page has several photos of the bridge.

Highway Engineering Discoveries posted
Hong Kong
Dennis DeBruler: It opened to traffic Dec 11, 2022.
https://www.google.com/maps/@22.2962038,114.2572203,2050m/data=!3m1!1e3?entry=ttu

"The Tseung Kwan O Cross Bay Bridge in Hong Kong, a main part of the Cross Bay Link, opened to traffic on Dec 11[, 2022]....With a total length of about 1.8 kilometers, the 35.8-meter-wide bridge has a 200-meter-span external-floating butterfly-shaped steel main arch....It's worth noting that the arches of the bridge were built with S690 steel, the first time the ultra-high-duty steel was widely used in bridge construction in the world. In addition, it was the first time the float-over method was used in bridge erection in China." [sasac]

cgtn, Xinhua
"The bridge is the first marine viaduct in Hong Kong with a carriageway, a footpath, a cycle track and viewing platforms at the same time."
"The steel bridge components were prefabricated in the mainland, and the about 200-meter-long bridge was delivered to Hong Kong from Nantong, eastern Jiangsu Province."

neccontract
"The NEC-procured crossing forms part of a new 5.6 km highway between Kwun Tong and the Tseung Kwan O development area, which includes a 2.2 km tunnel east of Lam Tin."
"The centrepiece of the crossing is a 200 m span steel bridge with two inclined tied arches. This 10,000 t structure and its two 100 m steel side spans were manufactured over 1,600 km away in Nantong and erected by float-over technology onto their respective piled piers. Off-site manufacture was also used for most of the remaining 600 m of reinforced concrete viaducts. All pile-cap shells, V-shaped and vertical piers, and 50−75 m long box-girder deck spans were cast in Guangdong and installed span by span with up to 5,000 t capacity floating cranes. "

GlobalPhotos, this is one of many photos taken during this stage of construction.
"The Cross Bay Link is a 1.8km bridge across Junk Bay. Construction began in 2018 and is expected to finish by 2022. It is only a section of a much longer highway all the way to Yau Ma Tei, with the bridge connecting to the Tseung Kwan O - Lam Tin Tunnel also under construction to Kowloon. Another branch heads into Tiu Keng Ling."

cblsbtko
A significant fraction of the deck is allocated to landscaping and non-vehicle traffic.

 

aecom
"The 656-foot (200-meter) double-arch steel bridge, which weighs about 9,843 long tons (10,000 tonnes) and is over 131.23 feet (40 meters) high, was prefabricated in Nantong, China."

TheStandard
The arch was delivered in Hong Kong on Feb 16, 2021.

This is the largest double-arch bridge in the world ever erected using the float-in method. They had to worry about the tides as well as the ballasting in the barge. [hewson-consulting]

The Chinese don't always build the fanciest design.

archello

cblsbtko
The project includes a non-vehicle bridge, Southern Bridge,  to provide a complete pedestrian walk around Junk Bay.

This Sourthern Bridges was installed using a crane rather than the float-in method.

hewson-consulting

2019 13km Nansha (南沙大桥) Bridge over Pearl River in Guangdong Province

(Satellite) (Chinese:南沙大桥)  The previous name was Humen Second Bridge.

The crossing consists of two suspension briges and helical ramps to provide access to the Hai'ou Island.

newsgd, Photos: Humen Second Bridge Branch Office of Guangdong Provincial Highway Construction Co., Ltd
"On April 2nd, 2019, the [13km] Nansha Bridge, formerly known as the Humen Second Bridge, was officially opened."
"The Nansha Bridge comprises two cross-river mega-span suspension bridges. For the first time globally, the project involves two cross-river suspension bridges with their respective main spans exceeding 1,000 meters [3/4 mile]. The Dasha Waterway Bridge is a twin-tower single-span suspension bridge with a main span of 1,200 meters. The Nizhou Waterway Bridge is a twin-tower double-span suspension bridge with a main span of 1,688 meters [1 mile], making it the largest steel box girder suspension bridge in China."

I do not understand what they mean by "double-span" above. I can find only one span for the longer bridge. I noticed that the waterway is indeed busy.

Satellite

It "cost more than 11 billion yuan ($1.64 billion)." [ChinaDaily]

newsgd, Photos: Humen Second Bridge Branch Office of Guangdong Provincial Highway Construction Co., Ltd
Construction started in 2014.

mageba-group
The bridge not only has the world's longest steel box girder span (1,688m or 1 mile), it's the widest steel box girder suspension bridge at 40.5m (133').

The entrance and exit for the island use helical roads to change between street and bridge level. I see very few cars on those 2-lane ramps. Although America would also have two lanes, but one of them would be a shoulder. 

Taly posted
Nansha Bridge Guangzhou China
Anas Hanif Bhatti posted
Nansha Bridge Guangzhou, China
Treon Jooce Jackson: This can't be China though. Cars go the opposite way on the road. They travel forward on the left not the right.
Berkeley Littlejohn: Treon Jooce Jackson Hong Kong/Macau drive on the left, Mainland China drives on the right.
Highway Engineering discoveries posted
Nansha Bridge Guangzhou, China

I looked closely at this photo to check the occupancy of the ramps. Then I realized that the photo above is a cropped version of this photo. I also found this photo on Twitter.

黃思凱, Apr 2023

The helical ramps get a "Spaghetti" award.

Satellite

newsgd, Photos: Humen Second Bridge Branch Office of Guangdong Provincial Highway Construction Co., Ltd
The project set several records for continuous pours for both surface and volume jobs.

Structurae has some construction photos.

1966 East Canyon Reservoir Dam on East Canyon Creek ndar Morgan, UT

(Satellite)

usbr
"The new dam, with a height of 260 feet, a top thickness of 7 feet, crest length of 436 feet, and a volume of 35,716 cubic yards, replaces an old concrete arch dam and increases the reservoir capacity from 29,000 to 51,200 acre-feet, covering a surface area of 684 acres. The uncontrolled spillway is on the left end of the dam and has a 6,200-cubic-foot-per-second capacity; the outlet through the dam has a capacity of 710 cubic feet per second."

Jun 2023:

KUTV 2News posted
SPILL OVER: 🌊 East Canyon Reservoir appears to be FULL! Look at all that water.. look at all that green!!! 🟢
📸: Chad Hawkes, via kutv.com/chimein

It looks like the white part has been covered up and the brown part has turned green.

Satellite

It is good to see the years-long drought in the West is having some relief.

KUTV 2News posted in Jul 31, 2021
UTAH WATER: East Canyon Reservoir water level has dropped close to 50%, exposing the deeper Dam #2 just under the surface. State Park officials say Dam #3 is not yet visible.
Courtesy East Canyon State Park

I couldn't find a date for this photo when it was even dryer.

mapio_1

 

mapio_2

2017 was another wet year.

DesertNews
Before this, it spilled in 2011. The article implies that this flow is just 110cfs. The safe channel capacity is 250cfs, and in 2011 it hit 300cfs. 1:11 video of water spilling

1898+1941 Niagara Falls Rainbow/Honeymoon Bridges

(Bridge Hunter broke Mar 22, 2023; Historic Bridges; Satellite, 16,882 photos)

The Honeymoon Bridge was also known as the Falls View Bridge. It was the fourth bridge at this site, the previous three bridges were suspension bridges. [insauga]

The Rainbow Bridge began construction in 1940 to replace the Honeymoon Bridge that collapsed in 1938 because of an ice jam. It opened in 1941. It is a steel arch bridge. [CliftonHill_history]

NiagaraFallsLive, cropped
"Construction of the Rainbow Bridge started in May of 1940 and opened November 1st 1941. The deck of this bridge is 202 feet (61.5m) above the water and 950 feet (289.5m) in length. The water current under this bridge averages 26-30 miles per hour. The water depth is in excess of 175 feet (53m). In one minute it is estimated that six billion (6,000,000,000) pounds of water cross under the Rainbow Bridge. The bridges abutments are 50 feet (15m) above the water to avoid damage from ice in the river which incidentally destroyed the previous Honeymoon Bridge in January of 1938."
The toll for pedestrians is $1 in both US and Canadian funds.

 

Niagara Falls Adventures posted

When construction began on the Rainbow Bridge in 1940, the decision was made to adjust its location about 550ft [168m] north of the Honeymoon Bridge. 

The project was a massive undertaking, as workers had to hang in the middle of the 200ft [30.5m] tall, 1,000ft [305m] wide Niagara Gorge! To keep workers safe, a safety net was put below the bridge, and no fatalities occurred during the construction. 

Several precautions were taken to prevent a repeat of the Honeymoon Bridge collapse.  The Rainbow Bridge was built to a span of 950ft [290m], with each of the main arch abutments resting 50ft [15.2m] from the river's edge and 50ft above the surface of the water. The abutments and the approach spans rest on solid rock on the sides of the gorge, high enough to prevent ice from damaging the critical structures.

The two ribs of the bridge are made up of 3,500 tons of steel, while another 2,000 tons of steel were used to build superstructure and decking. 

The bridge was finally completed on November 1st of 1941, and is still used today by millions of vehicles and pedestrians annually.

Niagara Falls Adventures shared

Peter Jedicke: Ought to use metric units.

Don MacDonell: Peter Jedicke Anyone in construction in Canada does not use metric. Only bureaucrats and educators who are forced to, use metric. When students graduate and work in the real world they go back to feet and inches.

Don Penteluke: Don MacDonell I worked in the industry, including one year as a construction estimator. I would say 90% of the site drawings, architectural plans were done with feet and inches. When a metric plan came through, we would take the time to convert it back to inches. Most if not all of the workers on site build with feet and inches still.

Karen Limardi shared

ezbordercrossing
Commercial traffic is not allowed on this bridge to provide the best experience for tourists. Because of customs, delays of two hours can be encountered during the busy summer travel time.

Of the bridges that are downstream from the Falls, this bridge is the closest.

IloveNY

An-Gelo Valle posted

 

Paula McLaren posted
Off the site, I love Canada...

Niagara Falls Adventures posted

When the historic Niagara Falls Suspension Bridge had finally reached its life expectancy, the Upper Steel Arch Bridge was designed to replace it.-

Built from 1897-1898, the bridge linked Niagara Falls, USA with Niagara Falls, Canada. At 840 feet in length, the bridge was the longest bridge of its design in the world at the time!-

The bridge had a double track for trolley cars, and space for pedestrians and carriages as well. With Niagara Falls being known as the Honeymoon Capital of the World, the bridge took on its famous nickname: the Honeymoon Bridge!

Tom Collister: When the historic suspension bridge finally reached it's life expectancy, it was dismantled and brought down to Lewiston where it was reassembled and lasted another 63 years. 25 years longer than its replacement. Then, when the new Lewiston/Queenston bridge replaced it, it was disassembled and sent to a south American country. to be used.

Niagara Falls Adventures snared

 

Dougie Jay posted
HONEYMOON BRIDGE, completed in 1898 ... Behind the UNEEDA BISCUIT sign is the burnt First Clifton House & Clifton Hill ... the Lafayette Hotel (built in 1894) & Queen's Hotel (built in 1872) are at centre near the bridge exit ... Bender Street is at far right .. Victoria Ave/Palmer Ave & the Michigan Central rail line run across upper part of photo; 1900 (NFNYPL, courtesy Doug Southon)

 

Dougie Jay commented on his post
(courtesy Dick Hambridge)

Richard Szczepaniec provided two photos after the collapse as comments on the above post. (More on the collapse below.)

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Floating by the old Schoelkopf power stations

Dougie Jay provided four images on the above share.

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Spring of 1898 (NFNYPL) ... Construction of the Schoellkopf Power Station in foreground .. Honeymoon Bridge nearing completion; Second Fallsview Suspension Bridge towers & cables not yet removed .. note the First Clifton House in the distance, it was destroyed by fire in June 1898.

Marnee Faragher posted three photos with the comment: "1938 ice bridge, bridge collapse and hydro station Niagara Falls."

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Over the Falls Tours posted two photos with the comment: "84 years ago today, January 27, 1938 the old Upper Steel Arch  Bridge aka the Fallsview Bridge or the more common Honeymoon Bridge collapsed. Caused by a movement of ice on the Niagara River below pushing the bridge off of its abutment. Construction of a replacement bridge began on May 4, 1940, this time with the abutments much higher off the river. It was named the Rainbow Bridge and opened in November 1941 and is still operating today."

Carl Mottern shared with the comment: "When I was a Training Officer, I’d take new CBP Officers on “The Tour” of the Rainbow  Bridge complex. Last stop was onto the bridge head sidewalk itself. I’d show them the remains of the Honeymoon Bridge piers, down in the gorge. The piers were much lower than the current piers on the Rainbow Bridge. My late Father In-Law traveled from Buffalo to Niagara Falls to witness the collapsed bridge laying on the ice. He would have been 9 years old."

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David Long commented on Carl's share
The “over and under odds” of doing this again ? 😉

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"Model A" style cars on River Road at Clifton Hill lining up to cross the Honeymoon Bridge, Second Clifton Hotel at left; about 1925 (Petrie Collection postcard, NFPL)

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About 1925 (FH Leslie)

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About 1920

Bridges Now and Then posted
Rainbow Bridge Carillon Tower construction, Niagara Falls, April 3, 1942. (Brock University Library)
John Mccomber: My father Alec McComber connected it along w Tom Paul. Wesley Albany and Norman LeFebvre also in the raising gang. Canadian side

 

Bridges Now and Then posted
Rainbow Bridge construction crane, Niagara Falls, 1941. (Brock University Library)

 

Bridges Now and Then posted
"Last steel unit in Rainbow Bridge, Niagara Falls, 20 May 1941" (Brock University)

 

Antonio Medina posted
Rainbow Bridge construction crane, Niagara Falls, 1941. Source-Brock University Library

insauga, also in CliftonHill_collapse
"When the Niagara Falls border bridge was built and opened early 1898, it was at 840 feet (260 metres) the longest bridge in the world."
Just a year after it was built, ice bent some of the steel beams. That Summer they built protective walls around the abutments. That protection was sufficient until an ice jam in 1938.
[Note how close the abutments are to the river.]

insauga
In 1938, the ice was building up so bad that it was obvious the bridge would collapse. A lot of people started watching for the collapse. It occurred four days later. Even motion picture cameras were watching. This 1:42 video was a newsreal of the collapse.

Another video about the collapse:

2:05 video @ 1:43

CliftonHill_history
*The original Homeymoon Bridge after it collapsed*

 

CliftonHill_collapse
"During the fateful week in 1938, the Niagara river bed rose to 9 feet high, thus engulfing the Maid of the Mist docks and everything else around it. Suddenly the abutments of the Honeymoon Bridge were encased with ice. Knowing that the bridge would collapse on any given day, all vehicle traffic was ceased to a halt the day prior to the Niagara Falls Bridge Collapse on January 26th. No fatalities occurred due to this — except for the fate on the bridge! At 4:20 pm on January 27th, 1938 the Honeymoon Bridge fell into the Niagara Gorge."

nfexchange

"The Upper Steel Arch Bridge had a tendency to sway under heavy loads or high winds, and as a result, it was a widely held opinion that the bridge was unstable. One well-documented instance of this instability occurred on June 8th, 1925, when a crowd of people gathered on the bridge to view the fireworks at the inauguration ceremony of the illumination of the Falls, "'he Festival of Lights'. The spectators who filled the bridge soon realized that the bridge was swaying. Terrified, they got off of the bridge as quickly as possible. Had the bridge collapsed while filled with people, the tragedy would have been unimaginable, and therefore, although the structure of the bridge had not been damaged, it was reinforced with lateral bracing to avoid future scares.

"Built 1939-42, the Rainbow Bridge had the distinction of being the greatest hingeless steel arch bridge in the world at time of construction

"Built in 1897-98, the Honeymoon Bridge had the distinction of being the greatest hinged steel arch in the world at the time of construction"

2 of 5 photos posted by Dave-Cindy Collee-Farrington with the comment: "Helping to clean out my in laws basement and found these pics... anyone know the bridge and/or story?"

Jamie Jones: Honeymoon Bridge/Fallsview Bridge/Upper Steel Arch Bridge 1898-1938 - collapsed when prevailing winds over Lake Erie shifted a massive amount of ice through the Niagara River and over the falls, ultimately building up so high it buckled the bridge abutments and took the bridge down onto the packed ice below. It would later be rebuilt to the Rainbow Bridge we know today.

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b

Mike Cushman provided three photos on the above post as comments:

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3, cropped

Another view of the Rainbow Bridge shows that the abutments are a lot further from the river's edge. It is also 500' further downstream from the location of the Honeymoon Bridge.

InfoNiagara

Carl Mottern updated
The Niagara Gorge "Ice Bridge" Feb 10th, 2010. Looking south towards Niagara Falls and the Rainbow Bridge. Taken from The Customs House at The Whirlpool Bridge.
Carl Mottern shared

Nick Angelo posted four images with the comment: "Came across these pics in an old photo album, construction of the Rainbow Bridge. Thought the group might enjoy them."

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This has a nice view of the cliff on which the Schoellkopf Power Station was built.

Alejandro MonteMayor posted
Under Rainbow International Bridge. Niagara Falls, Ontario, Canada 5.
Alejandro MonteMayor shared

Rick Steinman provided seven photos as comments on Alejandro's post:

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remains of the Honeymoon Bridge base torn off from ice

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Alejandro MonteMayor posted
American Falls, Bridal Veil Falls & International Rainbow Bridge seen from the Canadian side. Niagara Falls, Canada.
Alejandro MonteMayor shared with the same comment

This web page has a lot of photos of the Honeymoon bridge both before and after the collapse.