Rating:
4 votes

Riverside Avenue Bridge

Photos 

General Elevation View

Photo taken by Historic American Engineering Record

View photos at Library of Congress

BH Photo #153647

Map 

Street View 

Facts 

Overview
Whipple through truss bridge over Northeast Corridor (Metro North Railroad) on Riverside Avenue
Location
Greenwich, Fairfield County, Connecticut
Status
Open to traffic
History
Built 1871 as part of a six-span bridge over the Housatonic River; relocated here 1895; reconstructed 1989
Builder
- Francis C. Lowthrop (Design)
Railroads
- Amtrak (AMTK)
- Metro-North Commuter Railroad (MNCW)
- Northeast Corridor (NEC)
Design
Cast- and wrought-iron Whipple through truss, retrofitted with load-bearing steel stringers
Dimensions
Length of largest span: 69.9 ft.
Total length: 170.9 ft.
Deck width: 20.7 ft.
Recognition
Posted to the National Register of Historic Places on August 29, 1977
Approximate latitude, longitude
+41.03146, -73.58808   (decimal degrees)
41°01'53" N, 73°35'17" W   (degrees°minutes'seconds")
Approximate UTM coordinates
18/618690/4543209 (zone/easting/northing)
Quadrangle map:
Stamford
Inventory numbers
NRHP 77001391 (National Register of Historic Places reference number)
CT 5808 (Connecticut bridge number)
BH 43968 (Bridgehunter.com ID)
Inspection (as of 10/2015)
Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Good (7 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 75.0 (out of 100)
Average daily traffic (as of 2015)
7,488

Update Log 

  • January 24, 2016: Updated by Art Suckewer: Removed Keystone Bridge Co. as fabricator based on information found
  • August 26, 2013: New Street View added by James McCray
  • January 30, 2010: Added by James Baughn

Sources 

  • Wikipedia
  • HAER CT-13 - Riverside Avenue Bridge, Riverside Avenue over Northeast Corridor Railroad , Greenwich, Fairfield County, CT
  • HAER CT-11 - Northeast Railroad Corridor, Amtrak Route between New York/Connecticut & Connec, New Haven, New Haven County, CT
  • Historicbridges.org - by Nathan Holth
  • James McCray - jamesinslocomb [at] yahoo [dot] com

Comments 

Riverside Avenue Bridge
Posted January 24, 2016, by ArtS (asuckewer [at] knite [dot] com)

The Riverside Bridge was not made by the Keystone Bridge Co.

This attribution, which seems to stem from HAER, never made sense to me. Both before and after the date of the bridge's manufacture, Keystone and their chief engineer Linville were strong proponents of wrought iron compression members and were using the Linville patents and Keystone columns.

In a letter published on page 23 of the July 9, 1887 edition of Engineering News, Lowthorp states that Keystone had submitted a competing bid for the bridge's manufacture. https://books.google.com/books?id=syhKAQAAMAAJ&pg=PA23&lpg=P...

I theorize that the bridge may have been made by Lowthorp's company but I suspect that fabrication was done by either Peter Cooper's Trenton Iron Works or William Corwin's Lambertville Iron Works. At this time, I have no proof of either.

It is also possible that Keystone erected the bridge at its present location.

Regards,

Art S.