Rating:
No votes cast

Mad River Bridge

Photos 

Mad River Bridge

Detail, looking East

Photo taken by Craig Philpott in July 2010

Enlarge

BH Photo #170788

Map 

Street View 

Facts 

Overview
Lost Warren through truss bridge over Mad River on US 101 in McKinleyville
Location
Humboldt County, California
History
Built 1929; rehabilitated 1959
Design
Subdivided Warren Through truss, riveted connections.
Dimensions
Length of largest span: 149.9 ft.
Total length: 740.2 ft.
Deck width: 24.6 ft.
Vertical clearance above deck: 14.8 ft.
Approximate latitude, longitude
+40.91667, -124.09278   (decimal degrees)
40°55'00" N, 124°05'34" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/407979/4530081 (zone/easting/northing)
Quadrangle map:
Arcata North
Average daily traffic (as of 2010)
2,000
Inventory numbers
CA 4-25R (California bridge number)
CA 04-25R (California bridge number)
BH 10911 (Bridgehunter.com ID)
Inspection report (as of October 2011)
Overall condition: Poor
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Deck condition rating: Poor (4 out of 9)
Sufficiency rating: 51.8 (out of 100)
View more at BridgeReports.com

Update Log 

  • May 12, 2011: Updated by K. A. Erickson: Bridge has been replaced
  • July 26, 2010: New photos from Craig Philpott
  • April 25, 2010: New Street View added by Nathan Holth

Sources