US Bridges

Clara Barton Parkw over Clara Barton Parkway (sb

Poor

Montgomery County, Maryland · 0.1 Miles West of Macarth · Structure no. 3300044P0000000

Built
1959
66 years old, rebuilt 1995
Condition
Poor
inspected October 2024
Type
Slab
Concrete
Length
1,409 ft
1 main span
Daily traffic
40,057
2023 count
Owner
Federal
National Park Service

About this bridge

Clara Barton Parkw over Clara Barton Parkway (sb is a concrete slab carrying Clara Barton Parkw over Clara Barton Parkway (sb in Montgomery County, Maryland. It was built in 1959 and reconstructed in 1995, so it is 66 years old, older than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 40,057 vehicles a day, roughly 1% of them trucks, projected to reach 54,990 by 2039. The structure is 1,409 ft (429.5 m) long and 15 ft wide.

Location

Open in Google Maps
CarriesClara Barton Parkw
CrossesClara Barton Parkway (sb
Location0.1 Miles West of Macarth
RouteFederal Lands Road 6
CountyMontgomery County
StateMaryland
Coordinates38.96369, -77.13697
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length1,409 ft (429.5 m)
Longest span1,409 ft (429.5 m)
Deck width15 ft (4.5 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,057 (2023)
Projected traffic54,990 by 2039
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerNational Park Service
Maintained byNational Park Service
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 Clara Barton Parkw over Clara Barton Parkway (sb built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1995.

What condition is Clara Barton Parkw over Clara Barton Parkway (sb in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Clara Barton Parkw over Clara Barton Parkway (sb carry?

About 40,057 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Clara Barton Parkw over Clara Barton Parkway (sb?

The structure is 1,409 ft (429.5 m) long with a longest span of 1,409 ft (429.5 m) and a deck 15 ft wide.

Who owns Clara Barton Parkw over Clara Barton Parkway (sb?

It is owned by the National Park Service.