Share:

BLACK ROCK RD over GREAT SENECA CREEK

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:BLACK ROCK RD over GREAT SENECA CREEK
Structure number:200000M-0047010
Location:0.7 MI N OF JCT SR 28
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:39.0 ft. [11.9 m]
Total length:74.2 ft. [22.6 m]
Roadway width between curbs:14.8 ft. [4.5 m]
Deck width edge-to-edge:15.1 ft. [4.6 m]
Skew angle:31°
Owner:County Highway Agency [02]
Year built:1965
Year reconstructed:1993
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:2
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Corrugated Steel [6]
Wearing surface:Bituminous [6]

Latest Available Inspection: April 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:300 [as of 2011]
Truck traffic:5% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Basically intolerable requiring high priority of corrrective action [3]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Operating rating:93.8 tons [85.3 metric tons]
Inventory rating:56.3 tons [51.2 metric tons]
Sufficiency rating:68.3
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$17,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
April 201568.3FairSatisfactoryFairFairFO300
April 201368.3FairSatisfactorySatisfactoryFairFO300
April 201168.3FairSatisfactorySatisfactoryFairFO300
April 200969.3FairSatisfactoryFairFairFO225
April 200744.1PoorSatisfactoryPoorFairSD225
April 200526.6PoorSatisfactorySeriousFairSD225
April 200326.6PoorSatisfactorySeriousFairSD225
April 200170.2FairSatisfactorySatisfactorySatisfactoryFO225
April 199980.4FairSatisfactorySatisfactorySatisfactoryFO225
April 199779.1FairSatisfactorySatisfactorySatisfactoryFO225
February 199569.6FairSatisfactorySatisfactorySatisfactoryFO225
April 199346.0FairSatisfactorySatisfactorySatisfactoryFO225
June 199133.1FairGoodSatisfactorySatisfactoryFO225