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CONNECTICUT AVENUE over ROCK CREEK & POTOMAC PKW

Map 

Coordinates:
+38.92123, -77.05013
38°55'16" N, 77°03'00" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

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: December 2013 

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]
Evaluation:Functionally obsolete [2]
Sufficiency rating:75.4

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
December 201375.4Functionally obsoleteSatisfactorySatisfactorySatisfactory29100
November 201175.4Functionally obsoleteSatisfactorySatisfactorySatisfactory29100
March 201073.4Functionally obsoleteGoodSatisfactorySatisfactory29100
February 200860.9Functionally obsoleteGoodSatisfactoryFair34000
September 200572.8Functionally obsoleteGoodGoodGood34000
July 200372.8Not deficientGoodGoodSatisfactory34000
July 200172.8Not deficientGoodGoodSatisfactory34000
December 199870.8Not deficientVery GoodGoodGood34000
December 199670.8Not deficientVery GoodGoodGood34000
December 199037.1Structurally deficientPoorPoorPoor34000