US Bridges

I-83 SB over Gay Street

Fair

Baltimore city, Maryland · 0.2 MI S of Orleans ST · Structure no. 200000BC1117012

Built
1975
50 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,454 ft
15 main spans
Daily traffic
80,130
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

I-83 SB over Gay Street is a steel continuous stringer/multi-beam or girder carrying I-83 SB over Gay Street in Baltimore city, Maryland. It was built in 1975, so it is 50 years old, younger than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 80,130 vehicles a day, roughly 8% of them trucks, projected to reach 94,900 by 2034. The structure is 1,454 ft (443.3 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-83 SB
CrossesGay Street
Location0.2 MI S of Orleans ST
RouteInterstate 83
CountyBaltimore city
StateMaryland
Coordinates39.29555, -76.61123
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans15
Design loadHS 20
Structure length1,454 ft (443.3 m)
Longest span103 ft (31.4 m)
Deck width54 ft (16.5 m)
Roadway width51 ft (15.4 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic80,130 (2017)
Projected traffic94,900 by 2034
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$110,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-83 SB over Gay Street built?

It was built in 1975, making it 50 years old in 2025.

What condition is I-83 SB over Gay Street in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does I-83 SB over Gay Street carry?

About 80,130 vehicles per day (2017 count), of which roughly 8% are trucks.

How long is I-83 SB over Gay Street?

The structure is 1,454 ft (443.3 m) long with a longest span of 103 ft (31.4 m) and a deck 54 ft wide.

Who owns I-83 SB over Gay Street?

It is owned by the City or Municipal Highway Agency.