US Bridges

Md 64 over Little Antietam Creek

Fair

Washington County, Maryland · 1.38 Miles West of Md 418 · Structure no. 100000210031020

Built
1958
67 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
106 ft
Daily traffic
6,732
2009 count
Owner
State
State Highway Agency

About this bridge

Md 64 over Little Antietam Creek is a concrete culvert carrying Md 64 over Little Antietam Creek in Washington County, Maryland. It was built in 1958, so it is 67 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 6,732 vehicles a day, roughly 8% of them trucks, projected to reach 7,704 by 2026. The structure is 106 ft (32.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMd 64
CrossesLittle Antietam Creek
Location1.38 Miles West of Md 418
RouteState Highway 64
Coordinates39.6881, -77.57512
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating73 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadHS 20
Structure length106 ft (32.3 m)
Longest span15 ft (4.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,732 (2009)
Projected traffic7,704 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 64 over Little Antietam Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is Md 64 over Little Antietam Creek 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 March 2023.

How much traffic does Md 64 over Little Antietam Creek carry?

About 6,732 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 64 over Little Antietam Creek?

The structure is 106 ft (32.3 m) long with a longest span of 15 ft (4.6 m).

Who owns Md 64 over Little Antietam Creek?

It is owned by the State Highway Agency.