Share:

CONNECTICUT AVENUE over ROCK CREEK & POTOMAC PKW

Map

Coordinates:
+38.92167, -77.05033
38°55'18" N, 77°03'01" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:CONNECTICUT AVENUE over ROCK CREEK & POTOMAC PKW
Structure number:0029
Location:OVER ROCK CREEK, N.W.
Purpose:Carries highway and pedestrian walkway over highway and waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:146.0 ft. [44.5 m]
Total length:756.9 ft. [230.7 m]
Roadway width between curbs:44.9 ft. [13.7 m]
Deck width edge-to-edge:87.9 ft. [26.8 m]
Vertical clearance below bridge:42.7 ft. [13.0 m]
Owner:State Highway Agency [01]
Year built:1907
Year reconstructed:1995
Historic significance:Bridge is on the National Register of Historic Places [1]
Design load:MS 18 / HS 20 [5]
Number of main spans:7
Main spans material:Concrete continuous [2]
Main spans design:Arch - Deck [11]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: January 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:29,100 [as of 2007]
Truck traffic:2% 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:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Superior to present desirable criteria [9]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Meets minimum tolerable limits to be left in place as is [4]
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 foundations (including piles) on dry land well above flood water elevations. [9]
Sufficiency rating:75.4

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
January 2016FairSatisfactorySatisfactorySatisfactory2910075.4
December 2013FairSatisfactorySatisfactorySatisfactory2910075.4
November 2011FairSatisfactorySatisfactorySatisfactory2910075.4
March 2010FairGoodSatisfactorySatisfactory2910073.4
February 2008FairGoodSatisfactoryFair3400060.9
September 2005GoodGoodGoodGood3400072.8
July 2003FairGoodGoodSatisfactory3400072.8
July 2001FairGoodGoodSatisfactory3400072.8
December 1998GoodVery GoodGoodGood3400070.8
December 1996GoodVery GoodGoodGood3400070.8
December 1990PoorPoorPoorPoor3400037.1

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Deck
Reinforced Concrete Decksq. ft.66,61655,61611,00000
Superstructure
Masonry Archlinear ft.1,10578731440
Substructure
Other Material Pier Walllinear ft.2,5732,45611610
Masonry Abutmentlinear ft.112112000
Joints
Pourable Jointlinear ft.802017430
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.4,4944,38410820
Steel Protective Coatingsq. ft.20,16620,04611550
Reinforced Concrete Bridge Raillinear ft.8628521000