US Bridges

Md 404 over Smithville Ditch

Fair

Caroline County, Maryland · 0.295 M W of Bullock Road · Structure no. 100000050033030

Built
1957
68 years old
Condition
Fair
inspected February 2025
Type
Culvert
Steel
Length
26 ft
1 main span
Daily traffic
8,721
2009 count
Owner
State
State Highway Agency

About this bridge

Md 404 over Smithville Ditch is a steel culvert carrying Md 404 over Smithville Ditch in Caroline County, Maryland. It was built in 1957, so it is 68 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 5 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 8,721 vehicles a day, projected to reach 14,301 by 2029. The structure is 26 ft (8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMd 404
CrossesSmithville Ditch
Location0.295 M W of Bullock Road
RouteState Highway 404
CountyCaroline County
StateMaryland
Coordinates38.81653, -75.75019
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length26 ft (8 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,721 (2009)
Projected traffic14,301 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 404 over Smithville Ditch built?

It was built in 1957, making it 68 years old in 2025.

What condition is Md 404 over Smithville Ditch 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 February 2025.

How much traffic does Md 404 over Smithville Ditch carry?

About 8,721 vehicles per day (2009 count).

How long is Md 404 over Smithville Ditch?

The structure is 26 ft (8 m) long with a longest span of 6 ft (1.8 m).

Who owns Md 404 over Smithville Ditch?

It is owned by the State Highway Agency.