Share:

RAMP TO I-66 over POTOMAC PKWY & 27TH

Map

Coordinates:
+38.90196, -77.05699
38°54'07" N, 77°03'25" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:RAMP TO I-66 over POTOMAC PKWY & 27TH
Structure number:1301
Location:WHITEHURST AT ROCK CREEK
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:106.0 ft. [32.3 m]
Total length:852.1 ft. [259.7 m]
Roadway width between curbs:25.9 ft. [7.9 m]
Deck width edge-to-edge:28.9 ft. [8.8 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Owner:State Highway Agency [01]
Year built:1998
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:7
Main spans material:Concrete continuous [2]
Main spans design:Segmental box girder [21]
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:Good
Status:Open, no restriction [A]
Average daily traffic:9,000 [as of 1999]
Truck traffic:3% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Better than present minimum criteria [7]
Channel protection:Bank protection is being eroded. River control devices and/or embankment have major damage. Trees and rush restrict the channel. [5]
Scour condition:Bridge foundations (including piles) on dry land well above flood water elevations. [9]
Operating rating:55.9 tons [50.8 metric tons]
Inventory rating:37.0 tons [33.6 metric tons]
Sufficiency rating:75.8
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$3,000,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
January 201675.8GoodGoodGoodGoodFO9000
January 201475.8GoodGoodGoodGoodFO9000

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Prestressed Concrete Closed Web/Box Girderlinear ft.74549924600
Steel Girder/Beamlinear ft.427427000
Steel Protective Coatingsq. ft.2,5622,562000
Deck
Reinforced Concrete Decksq. ft.3,1953,195000
Prestressed Concrete Top Flangesq. ft.22,41022,410000
Substructure
Reinforced Concrete Columneach97200
Reinforced Concrete Abutmentlinear ft.3603263400
Reinforced Concrete Pier Caplinear ft.7068200
Joints
Strip Seal Jointlinear ft.2902900
Assembly with Sealeach59030290
Bearings
Elastomeric Bearingeach104330
Movable Bearingeach44000
Steel Protective Coatingsq. ft.22000
Fixed Bearingeach44000
Steel Protective Coatingsq. ft.22000
Bridge Rail
Other Material Bridge Raillinear ft.1,7041,704000
Steel Protective Coatingsq. ft.1,5001,4420058
Concrete Protective Coatingsq. ft.10,22401,0223,0686,134