Structure 200000BC1116011 · Baltimore County, MD

I-83 NB over Gay Street

Carries I-83 NB over Gay Street, 0.2 Mi S Of Orleans ST.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,351 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

1,351 ft end to end, longest span 103 ft: about 3.8 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 multi-beam bridge.

Built197551 years old
Length1351.0 ft411.8 m
Daily traffic85,908counted 2024
Last inspectedMarch 2024every 24 months

Location

StateMaryland
CountyBaltimore
Location0.2 Mi S Of Orleans ST
CarriesI-83 NB
CrossesGay Street
Coordinates39.29472, -76.61072

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1351.0 ft (411.8 m)
Max Span103.0 ft (31.4 m)
Deck Width54.1 ft (16.5 m)
Deck Area6794.7 sq m
Main Spans15
Year Built1975

Traffic

Avg Daily Traffic85,908 (2024)
Truck Traffic8%
Lanes On Bridge3
Lanes Under Bridge4

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number200000BC1116011

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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