US Bridges

Is 97 Nbr over Severn Run

Fair

Anne Arundel County, Maryland · 0.81 Mile North of Md 3 · Structure no. 100000020076011

Built
1991
34 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
229 ft
3 main spans
Daily traffic
102,300
2009 count
Owner
State
State Highway Agency

About this bridge

Is 97 Nbr over Severn Run is a steel continuous stringer/multi-beam or girder carrying Is 97 Nbr over Severn Run in Anne Arundel County, Maryland. It was built in 1991, so it is 34 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 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 102,300 vehicles a day, roughly 8% of them trucks, projected to reach 61,916 by 2026. The structure is 229 ft (69.8 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIs 97 Nbr
CrossesSevern Run
Location0.81 Mile North of Md 3
RouteInterstate 97
Coordinates39.08071, -76.62667
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.5 US tons
Inventory rating46 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length229 ft (69.8 m)
Longest span87 ft (26.5 m)
Deck width60 ft (18.3 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic102,300 (2009)
Projected traffic61,916 by 2026
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
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 Is 97 Nbr over Severn Run built?

It was built in 1991, making it 34 years old in 2025.

What condition is Is 97 Nbr over Severn Run 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 August 2023.

How much traffic does Is 97 Nbr over Severn Run carry?

About 102,300 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Is 97 Nbr over Severn Run?

The structure is 229 ft (69.8 m) long with a longest span of 87 ft (26.5 m) and a deck 60 ft wide.

Who owns Is 97 Nbr over Severn Run?

It is owned by the State Highway Agency.