+18.24333, -66.20333
18°14'36" N, 66°12'12" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:PR 156 over LA PLATA RIVER
Structure number:019591
Location:2.3 KM N E OF COMERIO
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:123.0 ft. [37.5 m]
Total length:269.4 ft. [82.1 m]
Roadway width between curbs:38.4 ft. [11.7 m]
Deck width edge-to-edge:41.3 ft. [12.6 m]
Owner:State Highway Agency [01]
Year built:1991
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:3
Main spans material:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: May 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:9,400 [as of 2005]
Truck traffic:4% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Superior to present desirable criteria [9]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge is scour critical; field review indicates that extensive scour has occurred at bridge foundations. [2]
Sufficiency rating:83.1
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$2,421,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2017FairSatisfactoryGoodGood940083.1
April 2015FairSatisfactoryGoodGood940083.3
March 2013FairSatisfactoryGoodGood940083.1
March 2011FairSatisfactoryGoodSatisfactory940090.8
February 2009FairSatisfactoryGoodGood940090.8
December 2006FairSatisfactoryGoodGood370096.4
February 2004GoodGoodGoodGood370096.4
August 2001GoodGoodGoodGood370096.4
August 1999GoodGoodGoodGood370096.4
May 1997GoodGoodVery GoodGood370092.2
May 1995GoodGoodVery GoodGood370095.7
April 1993GoodVery GoodGoodGood130099.9
August 1991GoodVery GoodGoodGood130099.9

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Prestressed Concrete Girder/Beamlinear ft.1,8411,841000
Reinforced Concrete Decksq. ft.15,20915,1446500
Wearing Surfacessq. ft.14,12214,0903200
Reinforced Concrete Pier Walllinear ft.5249300
Reinforced Concrete Abutmentlinear ft.177170700
Reinforced Concrete Pile Cap/Footinglinear ft.3939000
Reinforced Concrete Pier Caplinear ft.8282000
Compression Jointlinear ft.1541025200
Elastomeric Bearingeach3030000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.735728700