US Bridges

I-83SB Off-Ramp over Mta Light Rail

Good

Baltimore city, Maryland · I-83 at Northern Pkwy · Structure no. 200000BC3121010

Built
1962
63 years old, rebuilt 1988
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
132 ft
4 main spans
Daily traffic
13,870
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

I-83SB Off-Ramp over Mta Light Rail is a steel stringer/multi-beam or girder carrying I-83SB Off-Ramp over Mta Light Rail in Baltimore city, Maryland. It was built in 1962 and reconstructed in 1988, so it is 63 years old, older than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 13,870 vehicles a day, roughly 8% of them trucks, projected to reach 16,760 by 2042. The structure is 132 ft (40.2 m) long and 64 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesI-83SB Off-Ramp
CrossesMta Light Rail
LocationI-83 at Northern Pkwy
RouteInterstate 83
CountyBaltimore city
StateMaryland
Coordinates39.36084, -76.65091
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.5 US tons
Inventory rating56 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length132 ft (40.2 m)
Longest span67 ft (20.4 m)
Deck width64 ft (19.6 m)
Roadway width60 ft (18.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,870 (2022)
Projected traffic16,760 by 2042
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed1.9 mi (3 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$19,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I-83SB Off-Ramp over Mta Light Rail built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1988.

What condition is I-83SB Off-Ramp over Mta Light Rail in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does I-83SB Off-Ramp over Mta Light Rail carry?

About 13,870 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is I-83SB Off-Ramp over Mta Light Rail?

The structure is 132 ft (40.2 m) long with a longest span of 67 ft (20.4 m) and a deck 64 ft wide.

Who owns I-83SB Off-Ramp over Mta Light Rail?

It is owned by the City or Municipal Highway Agency.