Rating:
2 votes

Morrison Bridge

Multnomah County, Oregon
Share:

Photos 

Morrison Bridge

Photo taken by Michael Goff on July 6, 2008

Enlarge

Map 

Street Views 

View Uglybridges.com report

Facts 

Overview
Bascule bridge over Willamette River on Morrison Street in Portland
Location
Portland, Multnomah County, Oregon
Status
Open to traffic
History
Built 1958
Builders
- American Bridge Co. of New York (Steel Erector)
- Manson Construction (Contractor)
- Moffatt, Nichol and Taylor (Engineers)
- Sverdrup and Parcel (Engineers)
Design
Double leaf Chicago style bascule lift
Dimensions
Length of largest span: 339.9 ft.
Total length: 759.9 ft.
Deck width: 78.1 ft.
Vertical clearance above deck: 16.6 ft.
Recognition
Posted to the National Register of Historic Places on November 14, 2012
Also called
Morrison Street Bridge
Approximate latitude, longitude
+45.51750, -122.66972   (decimal degrees)
45°31'03" N, 122°40'11" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/525795/5040493 (zone/easting/northing)
USGS topographic map
Portland
Inventory numbers
OR 02758 (Oregon Dept. of Transportation structure number)
NRHP 12000933 (National Register of Historic Places reference number)
BH 29882 (Bridgehunter.com ID)
Inspection (as of 03/2011)
Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Sufficiency rating: 66.8 (out of 100)
Average daily traffic (as of 2010)
53,835

Categories 

American Bridge Co. (449)
Bascule (559)
Built 1958 (214)
Built during 1950s (2,383)
Fixed Trunnion Bascule (10)
Have street view (9,906)
Manson Construction (6)
Moffatt, Nichol and Taylor (1)
Movable (1,356)
Multnomah County, Oregon (66)
 NR-listed (2,354)
Open (28,318)
Oregon (689)
Owned by county (16,492)
Portland, Oregon (34)
Span length 250-500 feet (863)
Steel grate deck (382)
Sverdrup and Parcel (15)
Total length 500-1000 feet (1,805)
Willamette River (46)

Update Log 

  • September 8, 2010: New Street View added by Michael Goff
  • April 20, 2009: Posted HAER photos
  • July 10, 2008: New photos from Michael Goff
  • July 8, 2008: Updated by Michael Goff
  • July 7, 2008: Updated by Michael Goff

Related Bridges 

Sources 

  • James Baughn - webmaster [at] bridgehunter [dot] com
  • Mike Goff - michael [dot] goff [at] hotmail [dot] com
  • HAER OR-100 - Morrison Bridge, Spanning Willamette River on Morrison & Alder Stre, Portland, Multnomah County, OR
  • Bridges of Portland - Ray Bottenberg, Arcadia Publishing, 2007
  • The Portland Bridge Book - Sharon Wood Wortman, Oregon Historical Society Press, 2001
  • Wikipedia - Morrison Street Bridge
Post a comment here
Contact webmaster

Comments 

Morrison Street Bridge
Posted October 25, 2007, by Kevin Boyle (keb [at] obec [dot] com)

Your site lists Clackamas County for this bridge when in fact it is entirely in downtown Portland in Multnomah County.