
Alsea Bay Bridge
Posted by:
TheBeanTeam
N 44° 25.695 W 124° 04.055
10T E 415025 N 4919993
The new Alsea Bay Bridge replaced a 1936 Conde B. McCullough reinforced concrete arch design, which had fallen into disrepair by the early 1980s.
Waymark Code: WM2Q6V
Location: Oregon, United States
Date Posted: 12/05/2007
Views: 72
Alsea Bay Bridge was built in Lincoln County in 1992
The new bridge was designed by Howard Needles Tammen and Bergendoff of Bellevue, Washington with assistance from Walt Hart, the State Bridge Engineer. The bridge was constructed by the General Construction Company of Seattle, Washington for a cost of 42.4 million dollars. Two of the original McCullough pylons, spires, and some railing were incorporated into the new steel and cable arch central to the bridge. The arch is 450-feet long and 90-feet high. The 80-foot wide Alsea Bay Bridge provides a navigational clearance of 70-feet. Steel and concrete piles reach more than 100-feet into the bedrock below. Many of the new bridge components are stainless steel, and concrete and steel features are coated with sealers to prevent salt intrusion.
Source: Oregon Dept. of TransportationPortions of the original bridge were adapted and kept as waysides and bridgeheads. Some of the original 1936 benchmarks are still in place on the preserved portion of the structure. The coordinates lead you to an original stairway from the 1936 bridge just north of the Historic Alsea Bay Bridge Interpretive Center and the location of one of these benchmarks.
Virtual Guide Books has a 360 degree panoramic view of the bridge that gives you an excellent overview of the bridge and bay.