Historic Bridges
of the United States
Portland Bridge
Fremont County
,
Colorado
Overview
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Photos
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Overview
Photos taken June 2007 by James Baughn
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Approach
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Deck view
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Railing
Map
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Map links:
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TopoZone
Terraserver USA
Facts
Overview
Deck truss over the Arkansas River on CO 120 at Portland in Penrose
Location
Penrose
,
Fremont County
,
Colorado
Status
Open to traffic
History
Built 1927
Design
Riveted, 8-panel Pratt deck truss
Dimensions
Length of largest span: 150.0 ft.
Total length: 388.0 ft.
Deck width: 20.0 ft.
Recognition
Posted to the National Register of Historic Places on February 4, 1985
Approximate latitude, longitude
+38.38861, -105.01539
(decimal degrees)
38°23'19" N, 105°00'55" W
(degrees°minutes'seconds")
Inventory numbers
CDOT K-16-K
(Colorado Dept. of Transportation structure number)
NRHP 85000210
(National Register of Historic Places reference number)
BH 11882
(Bridgehunter.com ID)
Inspection
(as of 08/2006)
Deck condition rating:
Satisfactory
(6 out of 9)
Superstructure condition rating:
Fair
(5 out of 9)
Substructure condition rating:
Fair
(5 out of 9)
Appraisal:
Functionally obsolete
Sufficiency rating: 50.5
(out of 100)
Average daily traffic
(as of 2005)
300
Categories
Arkansas River
(48)
Built 1927
(344)
Built during 1920s
(4,025)
CO 120
(4)
Colorado
(271)
Deck truss
(533)
Fremont County, Colorado
(25)
Functionally obsolete
(5,063)
NR-listed
(1,469)
Open
(21,591)
Owned by state
(6,524)
Penrose, Colorado
(4)
Pratt truss
(1,400)
Riveted
(355)
Span length 125-175 feet
(1,989)
Total length 250-500 feet
(2,089)
Truss
(15,739)
Update Log
September 27, 2007: Posted new photos
Comments
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