US Bridges

Is 595 over Md 450

Fair

Anne Arundel County, Maryland · 0.61 MI W of Md 2 · Structure no. 100000020032010

Built
1991
34 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
152 ft
1 main span
Daily traffic
106,360
2009 count
Owner
State
State Highway Agency

About this bridge

Is 595 over Md 450 is a steel stringer/multi-beam or girder carrying Is 595 over Md 450 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 106,360 vehicles a day, roughly 8% of them trucks, projected to reach 133,940 by 2029. The structure is 152 ft (46.3 m) long and 146 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIs 595
CrossesMd 450
Location0.61 MI W of Md 2
RouteInterstate 595
CountyAnne Arundel County
StateMaryland
Coordinates38.98424, -76.54325
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length152 ft (46.3 m)
Longest span142 ft (43.3 m)
Deck width146 ft (44.5 m)
Roadway width142 ft (43.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic106,360 (2009)
Projected traffic133,940 by 2029
Trucks8%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 595 over Md 450 built?

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

What condition is Is 595 over Md 450 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 2024.

How much traffic does Is 595 over Md 450 carry?

About 106,360 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Is 595 over Md 450?

The structure is 152 ft (46.3 m) long with a longest span of 142 ft (43.3 m) and a deck 146 ft wide.

Who owns Is 595 over Md 450?

It is owned by the State Highway Agency.