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ARNOLD DRIVE over SONOMA CREEK

Sonoma County, California

Map

Coordinates:
+38.35083, -122.51889
38°21'03" N, 122°31'08" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:ARNOLD DRIVE over SONOMA CREEK
Structure number:20C0213
Location:7.6 MI NORTH OF SR 116
Purpose:Carries highway over waterway
Route classification:Collector (Urban) [17]
Length of largest span:140.1 ft. [42.7 m]
Total length:143.1 ft. [43.6 m]
Roadway width between curbs:24.3 ft. [7.4 m]
Deck width edge-to-edge:33.8 ft. [10.3 m]
Vertical clearance above deck:12.8 ft. [3.9 m]
Owner:County Highway Agency [02]
Year built:1930
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 13.5 / H 15 [2]
Main span material:Steel [3]
Main span design:Truss - Thru [10]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: October 2016

Good/Fair/Poor Condition:Fair
Status:Posted for load [P]
Average daily traffic:13,900 [as of 2010]
Truck traffic:5% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Basically intolerable requiring high priority of replacement [2]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:24.6 tons [22.4 metric tons]
Inventory rating:14.6 tons [13.3 metric tons]
Sufficiency rating:32.9
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$1,707,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
October 201632.9FairFairGoodGoodSD13900
October 201434.4GoodGoodVery GoodVery GoodSD13900
October 201227.8PoorSeriousGoodGoodSD13900
February 201136.1PoorImminent FailureGoodGoodSD5870
October 200836.4PoorImminent FailureGoodGoodSD5870
November 200636.9PoorImminent FailureGoodGoodSD5870
November 200436.9PoorImminent FailureGoodGoodSD5870
October 200239.3PoorPoorGoodGoodSD5870
December 200042.9FairGoodSatisfactoryGoodSD5870
October 199842.9FairGoodSatisfactoryGoodSD5870
October 199642.9FairGoodSatisfactoryGoodSD5870
September 19944.0PoorFairSeriousSatisfactorySD5870
January 19934.0PoorFairSeriousSatisfactorySD5870
August 19904.0PoorFairSeriousSatisfactorySD5870