US Bridges

Keedysville Road over Little Antietam Creek

Fair

Washington County, Maryland · 0.1 MI NW of Md RTE 34 · Structure no. 200000W-5652010

Built
1858
167 years old, rebuilt 2003
Condition
Fair
inspected November 2023
Type
Arch - Deck
Masonry
Length
68 ft
2 main spans
Daily traffic
1,173
2015 count
Owner
County
County Highway Agency

About this bridge

Keedysville Road over Little Antietam Creek is a masonry arch - deck carrying Keedysville Road over Little Antietam Creek in Washington County, Maryland. It was built in 1858 and reconstructed in 2003, so it is 167 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 1,173 vehicles a day, roughly 5% of them trucks, projected to reach 1,617 by 2037. The structure is 68 ft (20.7 m) long and 16 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesKeedysville Road
CrossesLittle Antietam Creek
Location0.1 MI NW of Md RTE 34
RouteCounty Highway 565
CountyWashington County
StateMaryland
Coordinates39.48251, -77.70671
Functional classRural Local

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans2
Design loadUnknown
Structure length68 ft (20.7 m)
Longest span31 ft (9.4 m)
Deck width16 ft (4.8 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,173 (2015)
Projected traffic1,617 by 2037
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$25,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Keedysville Road over Little Antietam Creek built?

It was built in 1858, making it 167 years old in 2025. It was reconstructed in 2003.

What condition is Keedysville Road 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 November 2023.

How much traffic does Keedysville Road over Little Antietam Creek carry?

About 1,173 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is Keedysville Road over Little Antietam Creek?

The structure is 68 ft (20.7 m) long with a longest span of 31 ft (9.4 m) and a deck 16 ft wide.

Who owns Keedysville Road over Little Antietam Creek?

It is owned by the County Highway Agency.