Structure 200000BC1404010 · Baltimore County, MD

Maryland Avenue over I-83 Mta And Amtrak

Carries Maryland Avenue over I-83 Mta And Amtrak, 0.2 Mi S Of North AVE.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT518 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

518 ft end to end, longest span 110 ft: about 7 semi-trucks nose to tail. 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 multi-beam bridge.

Built1959rebuilt 1993
Length518.0 ft157.9 m
Daily traffic22,620counted 2024
Last inspectedOctober 2024every 24 months

Location

StateMaryland
CountyBaltimore
Location0.2 Mi S Of North AVE
CarriesMaryland Avenue
CrossesI-83 Mta And Amtrak
Coordinates39.52502, -77.03861

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length518.0 ft (157.9 m)
Max Span109.9 ft (33.5 m)
Deck Width65.9 ft (20.1 m)
Deck Area3173.8 sq m
Main Spans2
Year Built1959 (reconstructed 1993)

Traffic

Avg Daily Traffic22,620 (2024)
Truck Traffic5%
Lanes On Bridge4
Lanes Under Bridge6

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number200000BC1404010

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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