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Michigan

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Sault Ste. Marie

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Spruce Street Bridge, East Spruce Street, 500 Block, spanning Power Cana, Sault Ste. Marie, Chippewa County, MI



B&W Photos


Data Pages


Photo Caption Pages


Item Title


Location
spanning Power Cana, Sault Ste. Marie, MI

Find maps of Sault Ste. Marie, MI


Created/Published
Documentation compiled after 1968.

Notes
Survey number HAER MI-5
Building/structure dates: 1902 initial construction
Significance: The bridge is typical of the eye-bar truss construction used extensively at the beginning of the twentieth century. This design provided a flat deck suspended from the camel-back arch. Both vertical and horizontal structural members were joined through use of the eye-bar pin connection.

Subjects
Civil Engineering
Transportation
Steel Truss Bridges


Related Names
Pittsburg Testing Laboratory, Limited
New Castle Bridge Company
Condron, T. L.
Lawrie, J. A.


Collection
Historic American Engineering Record (Library of Congress)

Contents
Photograph caption(s): 
1. PROFILE VIEW FROM SOUTH
2. PROFILE VIEW FROM NORTH
3. WEST PORTAL OF BRIDGE LOOKING EAST
4. EAST PORTAL OF BRIDGE LOOKING WEST
5. THROUGH WAY VIEW EAST TO WEST
6. NORTH WALKWAY FROM EAST TO WEST
7. SOUTH SIDE WALKWAY FROM WEST END LOOKING EAST
8. NORTH SIDE WALKWAY VIEWED FROM WEST END
9. BRIDGE RAIL BALUSTRADE OF CAST IRON WITH LACED RAILING
10. EYEBAR PIN CONNECTION JOINING VERTICAL SUSPENSION STRINGER WITH LATERAL BRACING MEMBERS
11. BUILDIE'S PLAQUE MOUNTED ABOVE WEST PORTAL
12. NORTH WALKWAY UNDER SIDE VIEW
13. UNDERSIDE OF THROUGHWAY SHOWING MAIN CHORDS, SUSPENSION EYE-BAR PIN CONNECTORS, LOWER CHORD EYEBARS AND LATERAL BRACING MEMBERS
14. BRIDGE ABUTMENT AND ARCH TRUSS MOUNTING PLATE SHOWING EYE-BAR CONNECTION AND EYE-BAR PIN LOCATION
15. BRIDGE ABUTMENT BENEATH THROUGHWAY
16. LOWER CHORD EYE-BAR ASSEMBLY
17. EYE-BAR PIN ASSEMBLY DETAIL GOSSET PLATE AND WALKWAY CANTILEVER MEMBER
18. CLOSE-UP OF EYEBAR PIN ASSIMBLY VIEWED FROM BELOW BRIDGE
19. Photocopy of drawing (source not stated) showing BRIDGE PLAQUE
21. Photocopy of drawing (from Sault Ste. Marie, MI city archives) showing ROADWAY ACROSS SECTION DETAILS


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