US Bridges

Is 97 Sbr over Crownsville Road

Fair

Anne Arundel County, Maryland · 0.71 Mile North of Md 450 · Structure no. 100000020156012

Built
1987
38 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
86 ft
1 main span
Daily traffic
91,300
2009 count
Owner
State
State Highway Agency

About this bridge

Is 97 Sbr over Crownsville Road is a steel stringer/multi-beam or girder carrying Is 97 Sbr over Crownsville Road in Anne Arundel County, Maryland. It was built in 1987, so it is 38 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 91,300 vehicles a day, roughly 8% of them trucks, projected to reach 53,378 by 2026. The structure is 86 ft (26.2 m) long and 45 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

No coordinates are recorded for this structure.

CarriesIs 97 Sbr
CrossesCrownsville Road
Location0.71 Mile North of Md 450
RouteInterstate 97
Functional classRural 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating73 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length86 ft (26.2 m)
Longest span82 ft (25 m)
Deck width45 ft (13.6 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic91,300 (2009)
Projected traffic53,378 by 2026
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 97 Sbr over Crownsville Road built?

It was built in 1987, making it 38 years old in 2025.

What condition is Is 97 Sbr over Crownsville Road 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 May 2024.

How much traffic does Is 97 Sbr over Crownsville Road carry?

About 91,300 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Is 97 Sbr over Crownsville Road?

The structure is 86 ft (26.2 m) long with a longest span of 82 ft (25 m) and a deck 45 ft wide.

Who owns Is 97 Sbr over Crownsville Road?

It is owned by the State Highway Agency.