6 votes

"I" Street Bridge


I Street Bridge Sacramento

Driving West into portal, railroad deck is below

Photo taken by Craig Philpott in May 2010


BH Photo #166362


Street Views 


Double deck swing bridge with two railroad tracks on lower deck and auto traffic on upper deck.


Swing bridge over Sacramento River, carries railroad tracks and "I" Street in West Sacramento
Sacramento, Yolo County, California, and Sacramento County, California
Open to traffic
Future prospects
New highway bridge to be constructed. Fate of existing historic bridge not certain at this time. Section 106 should apply to this project.
Built 1911
- American Bridge Co. of New York (Superstructure)
- John D. Isaacs (Design)
- Missouri Valley Bridge & Iron Co. of Leavenworth, Kansas (Substructure)
- Amtrak (AMTK)
- Amtrak California (CDTX)
- Southern Pacific Railroad (SP)
- Union Pacific Railroad (UP)
Length of largest span: 194.9 ft.
Total length: 854.0 ft.
Deck width: 30.0 ft.
Vertical clearance above deck: 14.8 ft.
Posted to the National Register of Historic Places on April 22, 1982
Approximate latitude, longitude
+38.58627, -121.50649   (decimal degrees)
38°35'11" N, 121°30'23" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/630078/4271923 (zone/easting/northing)
38 ft. above sea level
Inventory numbers
CA 22C-153 (California bridge number)
NRHP 82002233 (National Register of Historic Places reference number)
BH 11734 (Bridgehunter.com ID)
Inspection (as of 01/2016)
Deck condition rating: Good (7 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 71.4 (out of 100)
Average daily traffic (as of 2007)

Update Log 

  • June 11, 2016: Updated by Christopher Finigan: Added category "Riveted"
  • January 19, 2016: New Street View added by Douglas Butler
  • December 1, 2015: New Street View added by Douglas Butler
  • January 27, 2014: New Street View added by Luke Harden
  • June 18, 2013: Updated by Nathan Holth: Updated status, NRHP number, and builders.
  • September 21, 2012: New photos from Jann Mayer
  • August 16, 2011: New photo from Brian Smith
  • May 25, 2010: Updated by Craig Philpott: Refined design added photos
  • May 1, 2010: Updated by Craig Philpott: corrected location

Related Bridges 



"I" Street Bridge
Posted April 14, 2017, by Robert Elder (robertelder1 [at] gmail [dot] com)

Also, as this bridge carries a railroad in addition to traffic, the railroad may have archives. If John Marvig chimes in, I would rely on his advice as he is one of our railroad experts on here.


"I" Street Bridge
Posted April 14, 2017, by Robert Elder (robertelder1 [at] gmail [dot] com)

Hi Elizabeth:

There are a few possibilities. The city or county might have copies. If not, the State Historical Society or perhaps CALTRANS might have something in their archives. The other possibility might be the archives of the bridge company if they still exist. I would suggest starting with the city and seeing if they can point you in the right direction. Best wishes in your quest.


"I" Street Bridge Sacramento, CA
Posted April 14, 2017, by Elizabeth Burnside (eabby414 [at] yahoo [dot] com)

I am looking to get some technical designs/drawings re I Street Bridge in Sacramento, CA along with any interesting history about it. Could you direct me to where I can attain these items.