+18.34576, -66.17385
18°20'45" N, 66°10'26" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:PR 830 over UNKNOWN CREEK
Structure number:006671
Purpose:Carries highway over waterway
Route classification:Collector (Urban) [17]
Length of largest span:26.9 ft. [8.2 m]
Total length:26.9 ft. [8.2 m]
Skew angle:33°
Owner:State Highway Agency [01]
Year built:1952
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:Concrete [1]
Main span design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: September 2018

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:25,300 [as of 2002]
Truck traffic:4% of total traffic
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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]
Pier/abutment protection:Navigation protection not required [1]
Culvert condition:Large spalls, heavy scaling, wide cracks, considerable efflorescence or opened construction joint permitting loss of backfill. Considerable settlement or misalignment. Considerable scouring or erosion at curtain walls, wingwalls or pipes. Metal culverts have significant distortion and deflection throughout, extensive corrosion or deep pitting. [4]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:56.1
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$782,000

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
September 2018Poor4 out of 102530056.1
August 2017Good7 out of 102530087.5
August 2016Poor4 out of 10940064.8
July 2015Poor4 out of 10940064.8
July 2014Poor4 out of 10940064.8
July 2013Poor4 out of 10940064.8
August 2012Poor4 out of 101020064.4
August 2011Poor4 out of 101020066.6
August 2010Fair5 out of 101020082.7
January 2009Fair5 out of 101020082.7
January 2007Fair5 out of 10940045.5
September 2005Fair6 out of 10940054.1
March 2003Fair6 out of 10940054.1
January 2002Poor4 out of 10940029.5
July 1999Poor4 out of 10550034.3
April 1998Poor4 out of 101240026.0
April 1997Poor4 out of 10350036.7
April 1995Poor4 out of 10480035.1
February 1993Poor3 out of 10242038.0
March 1991Poor3 out of 10242038.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Reinforced Concrete Culvertlinear ft.82043390
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.52262600
Reinforced Concrete Bridge Raillinear ft.3023700