Rating:
2 votes

ML - Marent Trestle

Photos 

Looking east at main span

photo by Robert Forsstrom

BH Photo #270782

Map 

Street View 

Description 

Bridge is 226 feet high. Information from NPRHA.org Online Collection

Facts 

Overview
Bridge over Marent Gulch on MRL (former Northern Pacific) Railway
Location
Missoula County, Montana
Status
Open to traffic
History
Built 1927 using 1885 towers
Builder
- George S. Morison of New Bedford, Massachusetts (Design of 1885 Structure)
Railroads
- Burlington Northern Railroad (BN)
- Montana Rail Link (MRL)
- Northern Pacific Railroad (NP)
Design
Warren deck truss
Dimensions
Length of largest span: 117.0 ft.
Total length: 796.0 ft.
Approximate latitude, longitude
+47.00320, -114.12362   (decimal degrees)
47°00'12" N, 114°07'25" W   (degrees°minutes'seconds")
Approximate UTM coordinates
11/718659/5209535 (zone/easting/northing)
Quadrangle map:
Evaro
Inventory number
BH 58845 (Bridgehunter.com ID)

Update Log 

  • February 9, 2020: Updated by John Marvig: Added information from NP bridge records
  • August 3, 2018: New photos from John Bernhisel
  • August 2, 2018: New photo from John Bernhisel
  • October 25, 2016: Updated by Nathan Holth: Added designer of 1885 portions.
  • November 22, 2013: New Street View added by Luke Harden
  • November 21, 2013: New Street View added by Luke Harden
  • November 21, 2013: Added by Nathan Morton

Sources 

  • Nathan Morton - morton890 [at] yahoo [dot] com
  • Luke
  • Nathan Holth
  • John Bernhisel - Johnmbernhisel [at] gmail [dot] com
  • John Marvig - marvigj27 [at] gmail [dot] com

Comments 

Marent Trestle
Posted August 3, 2018, by John Bernhisel (Johnmbernhisel [at] gmail [dot] com)
Marent Trestle
Posted October 26, 2016, by John Marvig (marvigj27 [at] gmail [dot] com)

According to the NP Bridge Book, the superstructure (trusses) were built 1927 while the towers/bases were built in 1885

http://research.nprha.org/Tacoma%20Division%20Bridge%20Book/...

Marent Trestle
Posted October 25, 2016, by Nathan Holth (nathan [at] historicbridges [dot] org)

I think the deck truss spans are newer than 1885. Note riveted connections. Also, this postcard showing what I believe are the 1885 George Morison designed spans:

https://www.flickr.com/photos/photolibrarian/15249472751