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12 results containing "Pennsylvania--Allegheny County--Oakmont"

Larger image available anywhere (12) | Larger image available only at the Library of Congress | Not Digitized

• 1.
  #gallery pa3714.color.361916c

  Oblique view of cantilever truss over main channel, looking NNE from south abutment. - Bessemer & Lake Erie Railroad, Allegheny River Bridge, Spanning Allegheny River, East of Pennsylvania Turnpike (I-76), Oakmont, Allegheny County, PA
  1999 | 5 x 7 in. | Lowe, Jet
  HAER PA,2-OAK.V,1--10 (CT) | HAER PA,2-OAK.V,1--10 (CT)

• 2.
  #gallery pa3714.color.361917c

  Oblique view of cantilever truss over main channel, looking NNE from south abutment. Pennsylvania Turnpike Bridge at left. - Bessemer & Lake Erie Railroad, Allegheny River Bridge, Spanning Allegheny River, East of Pennsylvania Turnpike (I-76), Oakmont, Allegheny County, PA
  1999 | 5 x 7 in. | Lowe, Jet
  HAER PA,2-OAK.V,1--11 (CT) | HAER PA,2-OAK.V,1--11 (CT)

• 3.
  #gallery pa3714.photos.361907p

  Oblique of bridge, looking west from south bank of Allegheny River at lock and dam no. 3. - Bessemer & Lake Erie Railroad, Allegheny River Bridge, Spanning Allegheny River, East of Pennsylvania Turnpike (I-76), Oakmont, Allegheny County, PA
  1999 | 5 x 7 in. | Lowe, Jet
  HAER PA,2-OAK.V,1--1 | HAER PA,2-OAK.V,1--1

• 4.
  #gallery pa3714.photos.361908p

  3/4 view, looking SW from north bank, showing spans over back channel, with Pennsylvania Turnpike in background. - Bessemer & Lake Erie Railroad, Allegheny River Bridge, Spanning Allegheny River, East of Pennsylvania Turnpike (I-76), Oakmont, Allegheny County, PA
  1999 | 5 x 7 in. | Lowe, Jet
  HAER PA,2-OAK.V,1--2 | HAER PA,2-OAK.V,1--2

• 5.
  #gallery pa3714.photos.361909p

  Perspective view of simple truss span at north end, looking NW. - Bessemer & Lake Erie Railroad, Allegheny River Bridge, Spanning Allegheny River, East of Pennsylvania Turnpike (I-76), Oakmont, Allegheny County, PA
  1999 | 5 x 7 in. | Lowe, Jet
  HAER PA,2-OAK.V,1--3 | HAER PA,2-OAK.V,1--3

• 6.
  #gallery pa3714.photos.361910p

  Perspective view of cantilever truss over back channel, looking SW. - Bessemer & Lake Erie Railroad, Allegheny River Bridge, Spanning Allegheny River, East of Pennsylvania Turnpike (I-76), Oakmont, Allegheny County, PA
  1999 | 5 x 7 in. | Lowe, Jet
  HAER PA,2-OAK.V,1--4 | HAER PA,2-OAK.V,1--4

• 7.
  #gallery pa3714.photos.361911p

  Oblique view of cantilever truss over main channel, looking NNE from south abutment. Pennsylvania Turnpike Bridge at left. - Bessemer & Lake Erie Railroad, Allegheny River Bridge, Spanning Allegheny River, East of Pennsylvania Turnpike (I-76), Oakmont, Allegheny County, PA
  1999 | 5 x 7 in. | Lowe, Jet
  HAER PA,2-OAK.V,1--5 | HAER PA,2-OAK.V,1--5

• 8.
  #gallery pa3714.photos.361912p

  Oblique view of cantilever truss over main channel, looking NNE from south abutment. - Bessemer & Lake Erie Railroad, Allegheny River Bridge, Spanning Allegheny River, East of Pennsylvania Turnpike (I-76), Oakmont, Allegheny County, PA
  1999 | 5 x 7 in. | Lowe, Jet
  HAER PA,2-OAK.V,1--6 | HAER PA,2-OAK.V,1--6

• 9.
  #gallery pa3714.photos.361913p

  Detail view inside cantilever truss over main channel, showing lower chord and lateral bracing. Note webbing between diagonal eye-bars at right. Pennsylvania Turnpike Bridge in background. - Bessemer & Lake Erie Railroad, Allegheny River Bridge, Spanning Allegheny River, East of Pennsylvania Turnpike (I-76), Oakmont, Allegheny County, PA
  1999 | 5 x 7 in. | Lowe, Jet
  HAER PA,2-OAK.V,1--7 | HAER PA,2-OAK.V,1--7

• 10.
  #gallery pa3714.photos.361914p

  Detail view inside cantilever truss over main channel, looking SSW toward south abutment. - Bessemer & Lake Erie Railroad, Allegheny River Bridge, Spanning Allegheny River, East of Pennsylvania Turnpike (I-76), Oakmont, Allegheny County, PA
  1999 | 5 x 7 in. | Lowe, Jet
  HAER PA,2-OAK.V,1--8 | HAER PA,2-OAK.V,1--8

• 11.
  #gallery pa3714.photos.361915p

  Detail view of lower-chord connection near south abutment, with lateral, diagonal, and vertical members. - Bessemer & Lake Erie Railroad, Allegheny River Bridge, Spanning Allegheny River, East of Pennsylvania Turnpike (I-76), Oakmont, Allegheny County, PA
  1999 | 5 x 7 in. | Lowe, Jet
  HAER PA,2-OAK.V,1--9 | HAER PA,2-OAK.V,1--9

• 12.
  #gallery pa3714

  Bessemer & Lake Erie Railroad, Allegheny River Bridge, Spanning Allegheny River, East of Pennsylvania Turnpike (I-76), Oakmont, Allegheny County, PA
  Documentation compiled after 1968 | Photo(s): 9, Color Transparencies: 2, Data Page(s): 5, Photo Caption Page(s): 2 | Historic American Engineering Record
  HAER PA,2-OAK.V,1-