US Bridges

North Ave. On-Ramp over I-83 SB

Fair

Baltimore city, Maryland · On Ramp to SB I-83 · Structure no. 200000BC1104010

Built
1959
66 years old, rebuilt 1988
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
179 ft
3 main spans
Daily traffic
6,289
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

North Ave. On-Ramp over I-83 SB is a steel stringer/multi-beam or girder carrying North Ave. On-Ramp over I-83 SB in Baltimore city, Maryland. It was built in 1959 and reconstructed in 1988, so it is 66 years old, older 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 6,289 vehicles a day, roughly 8% of them trucks, projected to reach 7,674 by 2043. The structure is 179 ft (54.6 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesNorth Ave. On-Ramp
CrossesI-83 SB
LocationOn Ramp to SB I-83
RouteInterstate 83
CountyBaltimore city
StateMaryland
Coordinates39.31026, -76.6225
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
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 inspectionNovember 2023
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating75.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length179 ft (54.6 m)
Longest span59 ft (18 m)
Deck width25 ft (7.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,289 (2023)
Projected traffic7,674 by 2043
Trucks8%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkSTRAHNET connector

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$18,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was North Ave. On-Ramp over I-83 SB built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1988.

What condition is North Ave. On-Ramp over I-83 SB 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 November 2023.

How much traffic does North Ave. On-Ramp over I-83 SB carry?

About 6,289 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is North Ave. On-Ramp over I-83 SB?

The structure is 179 ft (54.6 m) long with a longest span of 59 ft (18 m) and a deck 25 ft wide.

Who owns North Ave. On-Ramp over I-83 SB?

It is owned by the City or Municipal Highway Agency.