US Bridges

Is 595 EB over Folly Branch

Fair

Prince George's County, Maryland · 1.11 Miles West of Md 193 · Structure no. 100000160090013

Built
1955
70 years old, rebuilt 1985
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
85 ft
3 main spans
Daily traffic
113,590
2009 count
Owner
State
State Highway Agency

About this bridge

Is 595 EB over Folly Branch is a steel stringer/multi-beam or girder carrying Is 595 EB over Folly Branch in Prince George's County, Maryland. It was built in 1955 and reconstructed in 1985, so it is 70 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 113,590 vehicles a day, roughly 8% of them trucks, projected to reach 169,210 by 2029. The structure is 85 ft (25.9 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIs 595 EB
CrossesFolly Branch
Location1.11 Miles West of Md 193
RouteInterstate 595
Coordinates38.94667, -76.81885
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating77.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length85 ft (25.9 m)
Longest span27 ft (8.2 m)
Deck width60 ft (18.3 m)
Roadway width57 ft (17.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic113,590 (2009)
Projected traffic169,210 by 2029
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 595 EB over Folly Branch built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1985.

What condition is Is 595 EB over Folly Branch 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 EB over Folly Branch carry?

About 113,590 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Is 595 EB over Folly Branch?

The structure is 85 ft (25.9 m) long with a longest span of 27 ft (8.2 m) and a deck 60 ft wide.

Who owns Is 595 EB over Folly Branch?

It is owned by the State Highway Agency.