Structure 300000AAMA17010 · Anne Arundel County, MD

Upper Level Roadwa over Lower Level Roadway

Carries Upper Level Roadwa over Lower Level Roadway, Bwi Airport.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,039 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 7/9

1,039 ft end to end, longest span 44 ft: about 2.9 football fields. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built200224 years old
Length1039.0 ft316.7 m
Daily traffic12,589counted 2024
Last inspectedJune 2024every 12 months

Location

StateMaryland
CountyAnne Arundel
LocationBwi Airport
CarriesUpper Level Roadwa
CrossesLower Level Roadway
Coordinates39.18173, -76.67253

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length1039.0 ft (316.7 m)
Max Span44.0 ft (13.4 m)
Deck Width130.9 ft (39.9 m)
Deck Area12636.3 sq m
Main Spans40
Year Built2002

Traffic

Avg Daily Traffic12,589 (2024)
Truck Traffic5%
Lanes On Bridge5
Lanes Under Bridge5

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 12 months
OwnerOther State Agencies
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number300000AAMA17010

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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