US Bridges

Md 6 over Zekiah Swamp

Fair

Charles County, Maryland · 0.09 M W of Br No 0800600 · Structure no. 100000080007010

Built
1933
92 years old, rebuilt 2017
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
195 ft
3 main spans
Daily traffic
9,300
2014 count
Owner
State
State Highway Agency

About this bridge

Md 6 over Zekiah Swamp is a steel stringer/multi-beam or girder carrying Md 6 over Zekiah Swamp in Charles County, Maryland. It was built in 1933 and reconstructed in 2017, so it is 92 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 9,300 vehicles a day, roughly 7% of them trucks, projected to reach 16,800 by 2034. The structure is 195 ft (59.4 m) long and 36 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

CarriesMd 6
CrossesZekiah Swamp
Location0.09 M W of Br No 0800600
RouteState Highway 6
Coordinates38.49099, -76.92749
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.8 US tons
Inventory rating47.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length195 ft (59.4 m)
Longest span64 ft (19.5 m)
Deck width36 ft (11.1 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,300 (2014)
Projected traffic16,800 by 2034
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 km)
TollOn a free road
National Highway SystemNo

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 Md 6 over Zekiah Swamp built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 2017.

What condition is Md 6 over Zekiah Swamp 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 July 2024.

How much traffic does Md 6 over Zekiah Swamp carry?

About 9,300 vehicles per day (2014 count), of which roughly 7% are trucks.

How long is Md 6 over Zekiah Swamp?

The structure is 195 ft (59.4 m) long with a longest span of 64 ft (19.5 m) and a deck 36 ft wide.

Who owns Md 6 over Zekiah Swamp?

It is owned by the State Highway Agency.