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RAMP TO I-66 over POTOMAC PKWY & 27TH

Map 

Coordinates:
+38.90196, -77.05699
38°54'07" N, 77°03'25" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

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 

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]
Evaluation:Functionally obsolete [2]
Sufficiency rating:75.8
Recommended work:Other structural work, including hydraulic replacements. [38]
Estimated cost of work:$3,000,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
January 201675.8Functionally obsoleteGoodGoodGood9000
January 201475.8Functionally obsoleteGoodGoodGood9000