View allAll Photos Tagged fixedbridge
The concrete beams holding up the roadbed of the new fixed bridge over the Saint Johns River at highway 44 just west of Deland, Florida. Shot in digital infrared.
A crane over the new bridge section for the new highway 44 bridge being build over the St. Johns River. Shot in digital infrared.
The old Hwy 44 drawbridge over the Saint Johns River at DeLand, Florida. in the background in the new fixed concrete bridge that will replace the old drawbridge. shot in digital infrared.
Black & White shot of two of the pylons for the new fixed bridge on the east bank of the St. Johns River. hot in black & white.
Clouds and the new fixed bridge over the St. Johns River behind the old drawbridge and the waning sign. Shot in digital infrared.
The old Hwy 44 drawbridge over the St. Johns River with the span of the new fixed bridge behind it. Shot in digital infrared.
The new North Avenue Bridge was completed in late 2007.
Here is an excerpt from an article about the bridge when it was nearing completion.
"Reconstructing Chicago's North Avenue Bridge". Building Design + Construction, 24 September 2007
A hybrid cable-stayed/suspension bridge, the first of its kind in Chicago, is being built over the north branch of the Chicago River at North Avenue. This project replaces the former North Avenue Bridge — a 99-year-old, inoperable bascule bridge which was demolished earlier this year. Designed by HNTB Corp., the new, wider, fixed-span structure will accommodate two lanes of traffic in each direction instead of narrowing to one lane over the river as the old bridge did. The new bridge will also feature sidewalks on both sides.
In a city with a long heritage of innovative bridge design, the new North Avenue Bridge will be a notable addition. "Chicago has this marvelous heritage of innovative bridges, dating back to the turn of the 20th century," says Brian Steele, a spokesman for the Chicago Department of Transportation (CDOT). "The new North Avenue Bridge will be in the top five, perhaps top three architecturally significant bridges in Chicago. In terms of newer era bridges, it will rival the Damen Avenue Bridge (a bascule bridge replaced by an arch bridge in 1999)."
Multiphase Project
James McHugh Construction Co., Chicago, is the general contractor for CDOT's $25-million, multiphase project. Construction began in mid-2006 and is scheduled for completion around Thanksgiving.
"This bridge is one of the most complicated structures we have built," says McHugh Project Manager Carlos del Val Cura, a 20-year construction professional (13 years with McHugh). "It is very challenging."
Featuring a unique hybrid of a self-anchored suspension bridge and a cable-stayed bridge, the North Avenue Bridge will be one of the first such hybrid systems in the country, states Mike Gould, McHugh vice president of infrastructure construction.
A hybrid structural system was selected for the new structure to meet various geometric and clearance constraints, provide for future utilization of the riverbanks adjacent to the structure, and provide for an aesthetic structure, according to CDOT Project Manager Johnny Morcos, P.E.
"Space at North Avenue is limited because a railroad crossing is located just east of the bridge," he explains. "And due to Coast Guard regulations, we have to maintain a certain vertical clearance. The previous North Avenue Bridge was a bascule bridge with very high trusses, and we didn't want to build something like that again due to the cost of steel. Also, an operable or movable bridge was not required in this area because the river traffic here is mostly recreational."
CDOT carefully looked at the options of constructing a pure cable-stayed bridge or building a pure suspension bridge. "However, a massive tower would have been required for the cable-stayed bridge, and the length of the river crossing didn't warrant a pure suspension bridge," says Morcos. "So, we turned to the idea of building a hybrid suspension/cable-stayed bridge."
North Avenue Bridge Components
The new North Avenue Bridge will stretch 420 feet from anchor block to anchor block and will be 78 feet, 6 inches wide. It will consist of three segments — a 252-foot-main span and two 84-foot approach spans. The middle portion of the center span over the river will be supported by suspension cables and hangers, and the remainder of the center section and the east and west approach spans will be supported by cable stays (a total of 24) arranged in a fan or semi-harp configuration.
Both of these systems share two sets of 67-foot-tall support pylons (which rise 50 feet above the deck) constructed of built-up rolled steel plates. The pylons — each weighing approximately 95,000 pounds — are extremely complex, since they are required to support the combined forces of the suspension and cable-stay systems. Each pylon foundation is supported by 10 micropiles extending 90 feet into bedrock.
The cable-stayed and suspension systems will work together to support a post-tensioned bridge deck that also acts as a strut to transfer the horizontal loads of the systems to the massive anchor blocks at either end of the bridge span. The bridge deck is being post-tensioned and constructed with 10-inch high-performance concrete to provide greater durability and strength characteristics. And once all the bridge spans are in place, a 2-inch latex overlay will be placed over the entire deck, according to Morcos.
CDOT says the configuration of the hybrid cable-stayed/suspension bridge allows for an open, airy bridge. It also creates the maximum amount of clearance over the river, as required by the federal government. At a little over 18 feet, the new bridge will have the same clearance as the movable one it replaces.
www.bdcnetwork.com/reconstructing-chicagos-north-avenue-b...
Comfortable #dentalchair and nice view of the outside at #dentalimplants specialist Gordon Dental #KansasCity #missouri
A Vintage Gibson Guitar from 1973 called "The Paul". There's a lot of history with this guitar, and just like wine- the older the guitar gets the better it sounds! This guitar is litterally as old as I am!
#KansasCity #cosmeticdentist Dr. John Gordon explaining #orthodontictreatment options to his patient
A Vintage Gibson Guitar from 1973 called "The Paul". There's a lot of history with this guitar, and just like wine- the older the guitar gets the better it sounds! This guitar is litterally as old as I am!
A Vintage Gibson Guitar from 1973 called "The Paul". There's a lot of history with this guitar, and just like wine- the older the guitar gets the better it sounds! This guitar is litterally as old as I am!
A Vintage Gibson Guitar from 1973 called "The Paul". There's a lot of history with this guitar, and just like wine- the older the guitar gets the better it sounds! This guitar is litterally as old as I am!
A Vintage Gibson Guitar from 1973 called "The Paul". There's a lot of history with this guitar, and just like wine- the older the guitar gets the better it sounds! This guitar is litterally as old as I am!
A Vintage Gibson Guitar from 1973 called "The Paul". There's a lot of history with this guitar, and just like wine- the older the guitar gets the better it sounds! This guitar is litterally as old as I am!
A Vintage Gibson Guitar from 1973 called "The Paul". There's a lot of history with this guitar, and just like wine- the older the guitar gets the better it sounds! This guitar is litterally as old as I am!
A Vintage Gibson Guitar from 1973 called "The Paul". There's a lot of history with this guitar, and just like wine- the older the guitar gets the better it sounds! This guitar is litterally as old as I am!
A Vintage Gibson Guitar from 1973 called "The Paul". There's a lot of history with this guitar, and just like wine- the older the guitar gets the better it sounds! This guitar is litterally as old as I am!
The process used to replace missing teeth is a Dental Bridge which attaches artificial teeth adjacent to your natural teeth. This process fills the gap where teeth are absent.
Off-Island Dental Care
1 Sherington Dr # H, Bluffton, SC 29910
(843) 815-7844
Kononykheen Breed Two. This model is already retired, because every Kononykheen model builds only for a short time. So every Kononykheen guitar is rare - this is highly valued by guitar collectors
#guitar #gitar #guitarphotography #guitarphoto #rareguitar #rareguitars #uniqueguitar #guitarcollection #fineguitar #guitarcollector #guitarra #electricguitar #ashbody #rosewoodfretboard #rosewoodfingerboard #mapleneck #humbucker #humbuckers #fixedbridge #reverseheadstock #reversedheadstock #kononykheen
A gum graft procedure is performed by oral surgeons to treat gum diseases like gingivitis, receding gums, and oral problems like loss of tooth support, bone loss, etc.Oral surgeons will take out the infected teeth and replace them with dental implants which look just like real teeth.
The American Dental Association recommends that you visit your dentist every six months to ensure your teeth stay healthy and your smile stays beautiful.
Off-Island Dental Care
1 Sherington Dr # H, Bluffton, SC 29910
(843) 815-7844
The American Dental Association recommends that you visit your dentist every six months to ensure your teeth stay healthy and your smile stays beautiful.
Off-Island Dental Care
1 Sherington Dr # H, Bluffton, SC 29910
(843) 815-7844
The process used to replace missing teeth is a Dental Bridge which attaches artificial teeth adjacent to your natural teeth. This process fills the gap where teeth are absent.
Off-Island Dental Care
1 Sherington Dr # H, Bluffton, SC 29910
(843) 815-7844
The process used to replace missing teeth is a Dental Bridge which attaches artificial teeth adjacent to your natural teeth. This process fills the gap where teeth are absent.
Off-Island Dental Care
1 Sherington Dr # H, Bluffton, SC 29910
(843) 815-7844