US Bridges

Md 68 over Antietam Creek

FairPosted for load

Washington County, Maryland · 1.9 Miles East of Md 65 · Structure no. 100000210038010

Built
1833
192 years old, rebuilt 1995
Condition
Fair
inspected March 2023
Type
Arch - Deck
Masonry
Length
133 ft
3 main spans
Daily traffic
2,592
2009 count
Owner
State
State Highway Agency

About this bridge

Md 68 over Antietam Creek is a masonry arch - deck carrying Md 68 over Antietam Creek in Washington County, Maryland. It was built in 1833 and reconstructed in 1995, so it is 192 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. Its operating status is: posted for load restriction.

It carries about 2,592 vehicles a day, roughly 8% of them trucks, projected to reach 2,919 by 2026. The structure is 133 ft (40.5 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesMd 68
CrossesAntietam Creek
Location1.9 Miles East of Md 65
RouteState Highway 68
CountyWashington County
StateMaryland
Coordinates39.53759, -77.71015
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating89.9 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length133 ft (40.5 m)
Longest span36 ft (11 m)
Deck width24 ft (7.3 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,592 (2009)
Projected traffic2,919 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$351,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 68 over Antietam Creek built?

It was built in 1833, making it 192 years old in 2025. It was reconstructed in 1995.

What condition is Md 68 over 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 68 over Antietam Creek carry?

About 2,592 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 68 over Antietam Creek?

The structure is 133 ft (40.5 m) long with a longest span of 36 ft (11 m) and a deck 24 ft wide.

Who owns Md 68 over Antietam Creek?

It is owned by the State Highway Agency.