US Bridges

Md 5 SB over Zekiah Swamp

Fair

Charles County, Maryland · 0.44 Mile South of Md 488 · Structure no. 100000080002012

Built
1932
93 years old, rebuilt 1938
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete
Length
70 ft
2 main spans
Daily traffic
37,490
2009 count
Owner
State
State Highway Agency

About this bridge

Md 5 SB over Zekiah Swamp is a concrete tee beam carrying Md 5 SB over Zekiah Swamp in Charles County, Maryland. It was built in 1932 and reconstructed in 1938, so it is 93 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 37,490 vehicles a day, roughly 8% of them trucks, projected to reach 23,919 by 2026. The structure is 70 ft (21.3 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMd 5 SB
CrossesZekiah Swamp
Location0.44 Mile South of Md 488
RouteState Highway 5
Coordinates38.56069, -76.85458
Functional classRural Principal Arterial - Other

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.5 US tons
Inventory rating43 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length70 ft (21.3 m)
Longest span32 ft (9.8 m)
Deck width35 ft (10.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,490 (2009)
Projected traffic23,919 by 2026
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$164,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 5 SB over Zekiah Swamp built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1938.

What condition is Md 5 SB 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 April 2024.

How much traffic does Md 5 SB over Zekiah Swamp carry?

About 37,490 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 5 SB over Zekiah Swamp?

The structure is 70 ft (21.3 m) long with a longest span of 32 ft (9.8 m) and a deck 35 ft wide.

Who owns Md 5 SB over Zekiah Swamp?

It is owned by the State Highway Agency.