US Bridges

Garis Shop Road over Antietam Creek

Good

Washington County, Maryland · 0.64 M SW of Alt US Rt 40 · Structure no. 200000W-4021010

Built
1839
186 years old, rebuilt 2017
Condition
Good
inspected January 2024
Type
Arch - Deck
Masonry
Length
132 ft
3 main spans
Daily traffic
1,698
2020 count
Owner
County
County Highway Agency

About this bridge

Garis Shop Road over Antietam Creek is a masonry arch - deck carrying Garis Shop Road over Antietam Creek in Washington County, Maryland. It was built in 1839 and reconstructed in 2017, so it is 186 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 1,698 vehicles a day, roughly 5% of them trucks, projected to reach 2,235 by 2040. The structure is 132 ft (40.2 m) long and 19 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesGaris Shop Road
CrossesAntietam Creek
Location0.64 M SW of Alt US Rt 40
RouteCounty Highway 788
CountyWashington County
StateMaryland
Coordinates39.58824, -77.70707
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
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 alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating93 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans3
Design loadHS 20
Structure length132 ft (40.2 m)
Longest span37 ft (11.3 m)
Deck width19 ft (5.9 m)
Roadway width16 ft (5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,698 (2020)
Projected traffic2,235 by 2040
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Garis Shop Road over Antietam Creek built?

It was built in 1839, making it 186 years old in 2025. It was reconstructed in 2017.

What condition is Garis Shop 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 January 2024.

How much traffic does Garis Shop Road over Antietam Creek carry?

About 1,698 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Garis Shop Road over Antietam Creek?

The structure is 132 ft (40.2 m) long with a longest span of 37 ft (11.3 m) and a deck 19 ft wide.

Who owns Garis Shop Road over Antietam Creek?

It is owned by the County Highway Agency.