CONNECTICUT AVENUE over ROCK CREEK & POTOMAC PKW

Map

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

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:	40.0 ft. `[12.2 m]`
Deck width edge-to-edge:	65.3 ft. `[19.9 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]`

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:	Superior to present desirable criteria `[9]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
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:	77.5

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
January 2018	Fair	Satisfactory	Satisfactory	Satisfactory	29100	77.5
January 2016	Fair	Satisfactory	Satisfactory	Satisfactory	29100	75.4
December 2013	Fair	Satisfactory	Satisfactory	Satisfactory	29100	75.4
November 2011	Fair	Satisfactory	Satisfactory	Satisfactory	29100	75.4
March 2010	Fair	Good	Satisfactory	Satisfactory	29100	73.4
February 2008	Fair	Good	Satisfactory	Fair	34000	60.9
September 2005	Good	Good	Good	Good	34000	72.8
July 2003	Fair	Good	Good	Satisfactory	34000	72.8
July 2001	Fair	Good	Good	Satisfactory	34000	72.8
December 1998	Good	Very Good	Good	Good	34000	70.8
December 1996	Good	Very Good	Good	Good	34000	70.8
December 1990	Poor	Poor	Poor	Poor	34000	37.1

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.

Element	Units	Quantity	1-Good	2-Fair	3-Poor	4-Serious
Deck
Reinforced Concrete Deck	sq. ft.	66,616	54,255	12,360	1	0
Superstructure
Masonry Arch	linear ft.	1,105	701	387	17	0
Substructure
Other Material Pier Wall	linear ft.	2,573	2,417	116	40	0
Masonry Abutment	linear ft.	112	112	0	0	0
Joints
Pourable Joint	linear ft.	80	0	37	43	0
Bridge Rail
Steel or Aluminum Bridge Rail	linear ft.	4,494	4,384	108	2	0
Steel Protective Coating	sq. ft.	20,166	20,046	115	5	0
Reinforced Concrete Bridge Rail	linear ft.	862	852	10	0	0