US Bridges

On-Ramp Northern P over Jones Falls

Fair

Baltimore city, Maryland · Northrn Pkwy Ramp to I-83 · Structure no. 200000BC3124010

Built
1959
66 years old, rebuilt 1987
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
201 ft
4 main spans
Daily traffic
21,460
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

On-Ramp Northern P over Jones Falls is a steel stringer/multi-beam or girder carrying On-Ramp Northern P over Jones Falls in Baltimore city, Maryland. It was built in 1959 and reconstructed in 1987, 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 6 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 21,460 vehicles a day, roughly 8% of them trucks, projected to reach 25,967 by 2042. The structure is 201 ft (61.3 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesOn-Ramp Northern P
CrossesJones Falls
LocationNorthrn Pkwy Ramp to I-83
RouteInterstate 83
Coordinates39.36224, -76.64882
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating69.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length201 ft (61.3 m)
Longest span69 ft (21 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,460 (2022)
Projected traffic25,967 by 2042
Trucks8%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$47,000
NavigationNo navigation control on waterway

Frequently asked questions

When was On-Ramp Northern P over Jones Falls built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1987.

What condition is On-Ramp Northern P over Jones Falls 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 2024.

How much traffic does On-Ramp Northern P over Jones Falls carry?

About 21,460 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is On-Ramp Northern P over Jones Falls?

The structure is 201 ft (61.3 m) long with a longest span of 69 ft (21 m) and a deck 27 ft wide.

Who owns On-Ramp Northern P over Jones Falls?

It is owned by the City or Municipal Highway Agency.