US Bridges

Old Forge Road over Antietam Creek

Good

Washington County, Maryland · 1.2 MI W of Md RTE 62 · Structure no. 200000W-2382010

Built
1863
162 years old, rebuilt 2015
Condition
Good
inspected October 2023
Type
Arch - Deck
Masonry
Length
137 ft
3 main spans
Daily traffic
580
2023 count
Owner
County
County Highway Agency

About this bridge

Old Forge Road over Antietam Creek is a masonry arch - deck carrying Old Forge Road over Antietam Creek in Washington County, Maryland. It was built in 1863 and reconstructed in 2015, so it is 162 years old, older than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 580 vehicles a day, roughly 5% of them trucks, projected to reach 860 by 2043. The structure is 137 ft (41.8 m) long and 20 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesOld Forge Road
CrossesAntietam Creek
Location1.2 MI W of Md RTE 62
RouteCounty Highway 773
CountyWashington County
StateMaryland
Coordinates39.66598, -77.65103
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating80 US tons
Inventory rating48 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans3
Design loadUnknown
Structure length137 ft (41.8 m)
Longest span41 ft (12.5 m)
Deck width20 ft (6.2 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic580 (2023)
Projected traffic860 by 2043
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Old Forge Road over Antietam Creek built?

It was built in 1863, making it 162 years old in 2025. It was reconstructed in 2015.

What condition is Old Forge Road over Antietam Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Old Forge Road over Antietam Creek carry?

About 580 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Old Forge Road over Antietam Creek?

The structure is 137 ft (41.8 m) long with a longest span of 41 ft (12.5 m) and a deck 20 ft wide.

Who owns Old Forge Road over Antietam Creek?

It is owned by the County Highway Agency.