+18.32167, -67.03833
18°19'18" N, 67°02'18" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:PR 423 over GRANDE CREEK
Structure number:018401
Location:5.34 KM S OF INT PR 111
Purpose:Carries highway over waterway
Route classification:Minor Collector (Rural) [08]
Length of largest span:30.8 ft. [9.4 m]
Total length:30.8 ft. [9.4 m]
Roadway width between curbs:26.2 ft. [8.0 m]
Deck width edge-to-edge:28.9 ft. [8.8 m]
Skew angle:28°
Owner:State Highway Agency [01]
Year built:1986
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Concrete [1]
Main span design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: March 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:600 [as of 2005]
Truck traffic:4% of total traffic
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present minimum criteria [6]
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:Shrinkage cracks, light scaling and insignificant spalling which does not expose reinforcing steel. Insignificant damage caused by drift with no misalignment and not requiring corrective action. Some minor scouring has occured near curtain walls, wingwalls or pipes. Metal culverts have a smooth symmetrical curvature with superficial corrosion and no pitting. [7]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:94.1

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
March 2017Good7 out of 1060094.1
March 2015Good7 out of 1060094.1
February 2013Good7 out of 1060094.1
February 2011Good7 out of 1060094.1
February 2009Good7 out of 1060094.1
June 2007Good7 out of 1050094.2
September 2005Good7 out of 1050094.2
October 2003Fair6 out of 1060094.1
May 2001Fair6 out of 1050094.2
February 2000Fair6 out of 1050094.2
May 1998Good7 out of 1050094.2
February 1996Good7 out of 1030094.3
June 1993Good7 out of 10130085.3
August 1991FairN out of 1070081.0

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Reinforced Concrete Culvertlinear ft.56431300
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.5656000