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Maquoketa vicinity

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Cottonville Bridge, County Road D-61 at Farmer's Creek, Maquoketa, Jackson County, IA



B&W Photos

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Data Pages


Drawings


Photo Caption Pages


Item Title


Location
County Road D-61 at Farmer's Creek, Maquoketa vicinity, IA

Find maps of Maquoketa, IA


Created/Published
Documentation compiled after 1968.

Notes
Survey number HAER IA-31
Building/structure dates: 1946 initial construction
Building/structure dates: 1991
Significance: The Cottonville Bridge is among Iowa's earliest extant examples of welded bridge construction. It is a simply supported, single-span tied arch structure that combines elements that are both anachronistic and innovative. Its arched configuration resembles an updated version of the venerable bowstring arch-truss built widely on Iowa's roads in the 1870s and 1880s. Its extensive use of welded connections at a time in which welded technology was in its formative stages, however, marks the bridge as a sophisticated design exercise.

Related Names
Bethlehem Steel Corporation


Collection
Historic American Engineering Record (Library of Congress)

Contents
Photograph caption(s): 
1. OVERALL VIEW OF BRIDGE AND STREAM, LOOKING NORTHWEST
2. OVERALL VIEW SHOWING SOUTH SIDE OF BRIDGE, LOOKING NORTHWEST
3. OVERALL VIEW OF BRIDGE AND COUNTY ROAD D-61, LOOKING WEST
4. OVERALL VIEW SHOWING SOUTH SIDE OF BRIDGE, LOOKING NORTH
5. OVERALL VIEW SHOWING SOUTH SIDE OF BRIDGE, LOOKING NORTHEAST
6. OVERALL VIEW SHOWING NORTH SIDE OF BRIDGE, LOOKING SOUTHEAST
7. DETAIL VIEW OF UNDERSIDE OF BRIDGE, SHOWING FLOOR BEAMS, STRINGERS, LOWER CHORDS AND LATERAL BRACING, WITH TIMBER PILE EAST ABUTMENT IN CENTER BACKGROUND, LOOKING EAST
8. DETAILED EXTERIOR VIEW OF WEB, SHOWING ARCH RIB, VERTICAL AND LOWER CHORD, LOOKING SOUTHWEST
9. DETAILED EXTERIOR VIEW OF WEB AT U3L3, SHOWING VERTICAL, ARCH RIB, LOWER CHORD AND WELDED/BOLTED GUSSET PLATE, LOOKING SOUTHWEST
10. DETAILED INTERIOR VIEW OF WEB AT U1L1, SHOWING VERTICAL, ARCH RIB WELDED/BOLTED GUSSET PLATE AND GUARDRAIL, LOOKING SOUTH
11. DETAILED INTERIOR VIEW OF WEB AT U2L2, SHOWING VERTICAL, ARCH RIB WELDED/BOLTED GUSSET PLATE AND GUARDRAIL, LOOKING SOUTH
12. DETAIL VIEW OF WEST ABUTMENT AT Lo, SHOWING BRIDGE SEAT, TIMBER PILES, STEEL SILL AND BACKWALL/WlNGWALL BOARDS, LOOKING NORTH


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