US Bridges

Roxbury Road over Antietam Creek

Fair

Washington County, Maryland · 1.27 MI W of Alt US Rt 40 · Structure no. 200000W-5371010

Built
1824
201 years old, rebuilt 2002
Condition
Fair
inspected October 2023
Type
Arch - Deck
Masonry
Length
98 ft
3 main spans
Daily traffic
778
2023 count
Owner
County
County Highway Agency

About this bridge

Roxbury Road over Antietam Creek is a masonry arch - deck carrying Roxbury Road over Antietam Creek in Washington County, Maryland. It was built in 1824 and reconstructed in 2002, so it is 201 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 778 vehicles a day, roughly 5% of them trucks, projected to reach 1,072 by 2045. The structure is 98 ft (29.9 m) long and 20 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesRoxbury Road
CrossesAntietam Creek
Location1.27 MI W of Alt US Rt 40
RouteCounty Highway 537
CountyWashington County
StateMaryland
Coordinates39.55321, -77.70075
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
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 inspectionOctober 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans3
Design loadUnknown
Structure length98 ft (29.9 m)
Longest span33 ft (10.1 m)
Deck width20 ft (6.1 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic778 (2023)
Projected traffic1,072 by 2045
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Roxbury Road over Antietam Creek built?

It was built in 1824, making it 201 years old in 2025. It was reconstructed in 2002.

What condition is Roxbury Road 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 October 2023.

How much traffic does Roxbury Road over Antietam Creek carry?

About 778 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Roxbury Road over Antietam Creek?

The structure is 98 ft (29.9 m) long with a longest span of 33 ft (10.1 m) and a deck 20 ft wide.

Who owns Roxbury Road over Antietam Creek?

It is owned by the County Highway Agency.