Conant Creek Pegram Truss Railroad Bridge
The Conant Creek Pegram Truss Railroad Bridge, in Fremont County, Idaho near Grainville, Idaho and Ashton, Idaho, was built in 1894. It brought a railroad over the Conant Creek, 1 mile south of the junction of Squirrel Rd. and the old Ashton-Victor railroad spur tracks. It is a Pegram truss bridge, designed by George H. Pegram. It was listed on the National Register of Historic Places in 1997.

It now carries the Ashton-Tetonia Trail, and is known as the Conant Creek Trestle.

It is a long bridge, spanning across four supporting steel towers, built to carry a single railroad track. The towers, fabricated in 1911 by the American Bridge Company. The two center towers are about high, and with of truss above, the total distance from base to railroad bed is . The three central spans are pin-connected Pegram truss deck spans, each long and wide, with a maximum depth of . At each end are steel deck girders long at the north end and at the south end, and then timber approach spans 60 and 45 feet long.

It was built in 1911 with Pegram spans that had been fabricated in 1894 by the Union Bridge Company of New York, and had been used previously at a Snake River crossing at American Falls, Idaho. The trusses were reinforced in 1916 with an additional, similar span along the centerline, manufactured by the American Bridge Company. In 1927 the steel girders were put into place, replacing original 1911 timber Howe trusses; these girders are believed to have been fabricated by Paxton & Verling Iron Works.

The rails were removed when the line was abandoned, several years before the 1997 National Register listing.
Q494508
Fremont County, Idaho
LOC
None
Grainville, Idaho
UNK
Q1517041
Ashton, Idaho
LOC
Q158218
Pegram truss
Concept
Q5540076
George H. Pegram
PER
Q3719
National Register of Historic Places
PER
Q85743319
Ashton-Tetonia Trail
UNK
Q463613
American Bridge Company
ORG
Q158218
Pegram truss
Concept
Q7885440
Union Bridge Company
ORG
Q272074
Snake River
LOC
Q385233
American Falls, Idaho
LOC
Q158218
Howe trusses
Concept
None
Paxton & Verling Iron Works
UNK
Q85753736
Conant Creek Pegram Truss Railroad Bridge
LOC
1894-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1894
DATE
1997-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1997
DATE
1911-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1911
DATE
1911-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1911
DATE
1894-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1894
DATE
1916-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1916
DATE
1927-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1927
DATE
1911-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1911
DATE
1997-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1997
DATE
+1^^http://www.w3.org/2001/XMLSchema#decimal
1
NUMBER
+60^^http://www.w3.org/2001/XMLSchema#decimal
60
NUMBER
+45^^http://www.w3.org/2001/XMLSchema#decimal
45
NUMBER
located in the administrative territorial entity
architect
located in the administrative territorial entity