US 101 over MUD BAY


+47.04490, -122.99069
47°02'42" N, 122°59'26" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:US 101 over MUD BAY
Structure number:0005677B0000000
Location:1.3 S JCT SR 8
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:40.0 ft. [12.2 m]
Total length:290.0 ft. [88.4 m]
Roadway width between curbs:31.2 ft. [9.5 m]
Deck width edge-to-edge:33.5 ft. [10.2 m]
Owner:State Highway Agency [01]
Year built:1958
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:8
Main spans material:Concrete continuous [2]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: April 2016 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:18,909 [as of 2012]
Truck traffic:8% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:55.4 tons [50.4 metric tons]
Inventory rating:33.7 tons [30.6 metric tons]
Sufficiency rating:83.1

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
April 201683.1FairSatisfactorySatisfactorySatisfactory-18909
April 201483.1FairSatisfactorySatisfactorySatisfactory-18909
May 201283.1FairSatisfactorySatisfactorySatisfactory-19356
May 201083.0FairSatisfactorySatisfactorySatisfactory-20153
June 200854.7PoorSatisfactorySatisfactoryPoorSD20153
August 200655.8PoorSatisfactorySatisfactoryPoorSD13582
September 200448.4PoorSatisfactorySatisfactoryPoorSD13582
July 200248.4PoorSatisfactorySatisfactoryPoorSD13582
March 200048.4PoorSatisfactorySatisfactoryPoorSD13448
June 199865.2FairSatisfactorySatisfactoryFairFO13448
April 199666.4FairSatisfactorySatisfactoryFairFO13448
July 199477.7FairSatisfactorySatisfactorySatisfactoryFO13448
July 199278.0FairSatisfactorySatisfactorySatisfactoryFO10400