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SOUTHWEST FREEWAY over 4TH STREET, S.W.

Washington, District of Columbia

Map

Coordinates:
+38.88232, -77.01756
38°52'56" N, 77°01'03" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.

Name:	SOUTHWEST FREEWAY over 4TH STREET, S.W.
Structure number:	1100
Location:	SOUTHWEST FRWY & 4TH
Purpose:	Carries highway over highway
Route classification:	Principal Arterial - Interstate (Urban) `[11]`
Length of largest span:	71.9 ft. `[21.9 m]`
Total length:	75.1 ft. `[22.9 m]`
Roadway width between curbs:	150.3 ft. `[45.8 m]`
Deck width edge-to-edge:	155.2 ft. `[47.3 m]`
Vertical clearance below bridge:	14.4 ft. `[4.4 m]`
Owner:	State Highway Agency `[01]`
Year built:	1959
Year reconstructed:	1991
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Design load:	MS 18 / HS 20 `[5]`
Main span material:	Prestressed concrete `[5]`
Main span design:	Box beam or girders - Multiple `[05]`
Deck type:	Concrete Cast-in-Place `[1]`
Wearing surface:	Monolithic Concrete (concurrently placed with structural deck) `[1]`

Latest Available Inspection: November 2015

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	153,700 `[as of 2007]`
Truck traffic:	5% 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:	Equal to present minimum criteria `[6]`
Underclearances appraisal:	Meets minimum tolerable limits to be left in place as is `[4]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Pier/abutment protection:	Navigation protection not required `[1]`
Scour condition:	Bridge not over waterway. `[N]`
Operating rating:	94.8 tons `[86.2 metric tons]`
Inventory rating:	56.9 tons `[51.7 metric tons]`
Sufficiency rating:	83.0
Recommended work:	Other structural work, including hydraulic replacements. `[38]`
Estimated cost of work:	$1,500,000

Previous Inspections

Date	Suff. Rating	Condition	Deck	Superstructure	Substructure	SD/FO	ADT
November 2015	83.0	Fair	Satisfactory	Satisfactory	Satisfactory	-	153700
November 2013	83.0	Fair	Satisfactory	Satisfactory	Satisfactory	-	153700
November 2011	72.0	Fair	Good	Very Good	Fair	-	153700
September 2009	72.0	Fair	Good	Fair	Good	-	153700
October 2007	72.0	Fair	Good	Fair	Good	-	163000
May 2005	83.0	Fair	Good	Satisfactory	Good	-	163000
May 2003	83.0	Fair	Good	Satisfactory	Good	-	163000
January 2001	84.0	Good	Good	Good	Good	-	163000
August 1998	84.0	Fair	Good	Satisfactory	Good	-	163000
October 1996	84.0	Fair	Good	Satisfactory	Good	-	163000
February 1994	71.9	Fair	Satisfactory	Satisfactory	Good	-	163000
December 1991	82.3	Fair	Fair	Satisfactory	Good	-	163000

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.

Element	Units	Quantity	1. Good	2. Fair	3. Poor	4. Serious
Superstructure
Prestressed Concrete Girder/Beam	linear ft.	1,942	1,883	46	13	0
Deck
Reinforced Concrete Deck	sq. ft.	11,632	11,627	2	3	0
Substructure
Reinforced Concrete Abutment	linear ft.	310	276	14	20	0
Joints
Compression Joint	linear ft.	385	150	70	165	0
Bearings
Movable Bearing	each	26	22	3	1	0
Steel Protective Coating	sq. ft.	13	12	0	0	1
Fixed Bearing	each	26	23	3	0	0
Steel Protective Coating	sq. ft.	13	13	0	0	0
Bridge Rail
Reinforced Concrete Bridge Rail	linear ft.	225	213	4	8	0
Concrete Protective Coating	sq. ft.	1,690	0	0	1,140	550

© Copyright 2012-18, James Baughn
Disclaimer: All data is taken from the National Bridge Inventory and has not been verified.
This page's URL is http://bridgereports.com/1076701