US Bridges

I-895 NB Ramp over Patapsco River

Fair

Howard County, Maryland · 0.1 MI South of I-195 · Structure no. 300000HOY013010

Built
1957
68 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
364 ft
6 main spans
Daily traffic
1,491
2019 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-895 NB Ramp over Patapsco River is a steel stringer/multi-beam or girder carrying I-895 NB Ramp over Patapsco River in Howard County, Maryland. It was built in 1957, so it is 68 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 1,491 vehicles a day, roughly 2% of them trucks, projected to reach 1,897 by 2041. The structure is 364 ft (110.9 m) long and 30 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesI-895 NB Ramp
CrossesPatapsco River
Location0.1 MI South of I-195
RouteInterstate 895
CountyHoward County
StateMaryland
Coordinates39.21764, -76.70636
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckClosed grating
Main spans6
Design loadHS 20
Structure length364 ft (110.9 m)
Longest span107 ft (32.6 m)
Deck width30 ft (9.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,491 (2019)
Projected traffic1,897 by 2041
Trucks2%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed14.9 mi (24 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-895 NB Ramp over Patapsco River built?

It was built in 1957, making it 68 years old in 2025.

What condition is I-895 NB Ramp over Patapsco River 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 September 2023.

How much traffic does I-895 NB Ramp over Patapsco River carry?

About 1,491 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is I-895 NB Ramp over Patapsco River?

The structure is 364 ft (110.9 m) long with a longest span of 107 ft (32.6 m) and a deck 30 ft wide.

Who owns I-895 NB Ramp over Patapsco River?

It is owned by the State Toll Authority.