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2. General perspective view of Neawanna Creek Bridge, view looking north, east side of structure - Neawanna Creek Bridge, Spanning Neawanna Creek at Milepoint 19.72 on U.S. 101 (Oregon Coast Highway), Seaside, Clatsop County, ORDigital ID: (None) hhh or0508.photos.200383p http://hdl.loc.gov/loc.pnp/hhh.or0508/photos.200383pReproduction Number: HAER OR-129-2Repository: Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.printhttps://www.loc.gov/pictures/item/or0508.photos.200383p/resource/
BridgeHunter.com: Neawanna Creek Bridge
BridgeHunter.com: Neawanna Creek Bridge
Overview: Concrete deck girder bridge over Neawanna Creek on U.S. 101 in Seaside
Location: Seaside, Clatsop County, Oregon
Status: Open to traffic
History: Built 1930
Builders
Builders
- Conde B. McCullough of Redfield, South Dakota (Bridge Engineer)
- F. L. Odom (Contractor)
Design
Design
The Neawanna Creek Bridge is significant as an intact example of a 1930s continuous concrete, multi-span highway bridge, utilizing Hardy Cross's moment distribution theory, and for its association with C.B. McCullough, Oregon's premier bridge engineer. The configuration of continuous concrete T-Beam construction utilized in the design of the 1930 Neawanna Creek Bridge represents a significant change in structural engineering theory and reinforced concrete technology by applying the moment distribution technique of distributing loads on girder structures. The moment distribution theory for continuous concrete frames was developed in the late 1920s by Hardy Cross, a civil engineer and professor of structural engineering at the University of Illinois. Hardy Cross was regarded by his contemporaries as a leader in a new school of thought in the field of structural analysis, and his theory is regarded by many architects and engineers to be one of the more significant structural theories developed during the 20th century.
Information from HAER Neawanna Creek Bridge Page:
Information from HAER Neawanna Creek Bridge Page:
Dimensions
Dimensions
Length of largest span: 52.5 ft.
Total length: 210.0 ft.
Deck width: 26.9 ft.
Average daily traffic (as of 2016)
Average daily traffic (as of 2016)
16,500
Inventory numbers
Inventory numbers
OR 01305 (Oregon Dept. of Transportation structure number)
BH 37384 (Bridgehunter.com ID)
BridgeHunter.com: Neawanna Creek Bridgehttps://bridgehunter.com/or/clatsop/neawanna-creek
14. Detail view of bridge plaque - Neawanna Creek Bridge, Spanning Neawanna Creek at Milepoint 19.72 on U.S. 101 (Oregon Coast Highway), Seaside, Clatsop County, ORDigital ID: (None) hhh or0508.photos.200395p http://hdl.loc.gov/loc.pnp/hhh.or0508/photos.200395pReproduction Number: HAER OR-129-14Repository: Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.printhttps://www.loc.gov/pictures/item/or0508.photos.200395p/resource/
HISTORIC AMERICAN ENGINEERING RECORD NEAWANNA CREEK BRIDGE (Wahanna Creek Bridge) HAER No. OR-129
HISTORIC AMERICAN ENGINEERING RECORD NEAWANNA CREEK BRIDGE (Wahanna Creek Bridge) HAER No. OR-129
The Neawanna Creek Bridge # l 305 is significant as an intact example of a 1930s continuous concrete, multi-span highway bridge, utilizing Hardy Cross's moment distribution theory, and for its association with C. B. McCollough, Oregon's premier bridge engineer.
The configuration of continuous concrete T-Beam construction utilized in the design of the 1930 Neawanna Creek Bridge represents a significant change in structural engineering theory and reinforced concrete technology by applying the moment distribution technique of distributing loads on girder structures. The moment distribution them)· for continuous concrete frames was developed in the late 1920s by Hardy Cross, a civil engineer and professor of structural engineering at the University of Illinois. Hardy Cross was regarded by his contemporaries as a leader in a new school of thought in the field of structural analysis, and his theory is regarded by many architects and engineers to be one of the more significant structural theories developed during the 20th century.
C. B. McCullough served as State Bridge Engineer, and later as the Assistant State Highway Engineer, of Oregon from 1919 until his death in 1946. He authored a number of books and technical articles on bridge design and construction. McCullough is significant for his use of innovative bridge technology, and for his visually appealing designs. He has attained international recognition for the large-scale structures designed to span the major rivers and estuaries along the Oregon coast for the completion of the Oregon Coast Highway in the 1930s.
http://cdn.loc.gov/master/pnp/habshaer/or/or0500/or0508/data/or0508data.pdf
5. General perspective view of Neawanna Creek Bridge, showing articulated fascia walls - Neawanna Creek Bridge, Spanning Neawanna Creek at Milepoint 19.72 on U.S. 101 (Oregon Coast Highway), Seaside, Clatsop County, ORDigital ID: (None) hhh or0508.photos.200386p http://hdl.loc.gov/loc.pnp/hhh.or0508/photos.200386pReproduction Number: HAER OR-129-5Repository: Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.printhttps://www.loc.gov/pictures/item/or0508.photos.200386p/resource/
11. Detail view of arched balustrade railing - Neawanna Creek Bridge, Spanning Neawanna Creek at Milepoint 19.72 on U.S. 101 (Oregon Coast Highway), Seaside, Clatsop County, ORDigital ID: (None) hhh or0508.photos.200392p http://hdl.loc.gov/loc.pnp/hhh.or0508/photos.200392pReproduction Number: HAER OR-129-11Repository: Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.printhttps://www.loc.gov/pictures/item/or0508.photos.200392p/resource
6. General perspective view of Neawanna Creek Bridge, showing bush-hammered, recessed panels in fascia wall - Neawanna Creek Bridge, Spanning Neawanna Creek at Milepoint 19.72 on U.S. 101 (Oregon Coast Highway), Seaside, Clatsop County, ORDigital ID: (None) hhh or0508.photos.200387p http://hdl.loc.gov/loc.pnp/hhh.or0508/photos.200387pReproduction Number: HAER OR-129-6Repository: Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.printhttps://www.loc.gov/pictures/item/or0508.photos.200387p/resource/
10. Substructure view of Neawanna Creek Bridge, view looking south - Neawanna Creek Bridge, Spanning Neawanna Creek at Milepoint 19.72 on U.S. 101 (Oregon Coast Highway), Seaside, Clatsop County, ORDigital ID: (None) hhh or0508.photos.200391p http://hdl.loc.gov/loc.pnp/hhh.or0508/photos.200391pReproduction Number: HAER OR-129-10Repository: Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.printhttps://www.loc.gov/pictures/item/or0508.photos.200391p/resource
Links
Links
BridgeHunter.com: Neawanna Creek Bridge
BridgeHunter.com: Neawanna Creek Bridge
Library of Congress: Historic American Buildings Survey, Engineering Record, Landscapes Survey
Library of Congress: Historic American Buildings Survey, Engineering Record, Landscapes Survey
Neawanna Creek Bridge, Spanning Neawanna Creek at Milepoint 19.72 on U.S. 101 (Oregon Coast Highway), Seaside, Clatsop County, OR
CLICK HERE to continue exploring the highway
CLICK HERE to continue exploring the highway
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