Share:

CONNECTICUT AVENUE over ROCK CREEK & POTOMAC PKW

Map

Coordinates:
+38.92123, -77.05013
38°55'16" N, 77°03'00" 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:44.9 ft. [13.7 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]
Operating rating:53.9 tons [49.0 metric tons]
Inventory rating:36.0 tons [32.7 metric tons]
Sufficiency rating:75.4

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
January 201675.4FairSatisfactorySatisfactorySatisfactoryFO29100
December 201375.4FairSatisfactorySatisfactorySatisfactoryFO29100
November 201175.4FairSatisfactorySatisfactorySatisfactoryFO29100
March 201073.4FairGoodSatisfactorySatisfactoryFO29100
February 200860.9FairGoodSatisfactoryFairFO34000
September 200572.8GoodGoodGoodGoodFO34000
July 200372.8FairGoodGoodSatisfactory-34000
July 200172.8FairGoodGoodSatisfactory-34000
December 199870.8GoodVery GoodGoodGood-34000
December 199670.8GoodVery GoodGoodGood-34000
December 199037.1PoorPoorPoorPoorSD34000