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Trinidad

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Commercial Street Bridge, Spanning Purgatoire River on Commercial Street, Trinidad, Las Animas County, CO



See 13 maps of this location


B&W Photos

HB231023

HB231024

HB231025

HB231026

HB231027

HB231028

HB231029

HB231030

HB231031

HB231032

HB231033

HB231034


Data Pages


Photo Caption Pages


Item Title


Location
Spanning Purgatoire River on Commercial Street, Trinidad, CO

Find maps of Trinidad, CO


Created/Published
Documentation compiled after 1968.

Notes
Survey number HAER CO-53
Building/structure dates: 1905 initial construction
Significance: After the turn of the century, the preferred alternative to the steel truss for short-span vehicular bridges was generally considered to the concrete arch. More solid under traffic and better resistant to flooding, it was also valued as more aesthetically refined than the starkly functional truss. This bridge is a direct representation of that trend in Colorado. It is associated with two pivotal figures in bridge technology, James March and Daniel Luten, and is the only bridge in Colorado known to have been built by Marsh's company. A regionally important crossing of the Purgatoire River, it is one of Colorado's most technologically significant spans.

Subjects
Civil Engineering
Concrete Arch Bridges
Transportation


Related Names
Marsh Bridge Company
Marsh, James
Luten, Daniel


Collection
Historic American Engineering Record (Library of Congress)

Contents
Photograph caption(s): 
1. OVERALL VIEW OF BRIDGE, LOOKING EAST
2. OVERALL VIEW OF BRIDGE, LOOKING WEST (UPSTREAM)
3. OVERALL VIEW OF BRIDGE, LOOKING EAST (DOWNSTREAM)
4. VIEW OF SOUTHEAST PORTAL, LOOKING NORTHWEST
5. VIEW OF NORTHWEST PORTAL, LOOKING SOUTHEAST
6. VIEW OF NORTH ARCH, LOOKING EAST
7. VIEW OF CENTER PIER ON WEST SIDE, LOOKING EAST
8. VIEW OF CENTER PIER ON EAST SIDE, LOOKING SOUTHWEST
9. VIEW OF NORTH ABUTMENT, LOOKING SOUTHEAST
10. VIEW OF ORIGINAL BALUSTERS ON SOUTH END, LOOKING NORTH
11. VIEW OF NAME PLATE ON SOUTHEAST PORTAL, LOOKING WEST
12. VIEW OF NAME PLATE ON NORTHWEST PORTAL, LOOKING EAST


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