US Bridges

Gossard Mill Road over Rockdale Run

FairPosted for load

Washington County, Maryland · 0.8 MI SE of Md 494 · Structure no. 200000W-0822010

Built
1977
48 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
51 ft
1 main span
Daily traffic
330
2017 count
Owner
County
County Highway Agency

About this bridge

Gossard Mill Road over Rockdale Run is a concrete slab carrying Gossard Mill Road over Rockdale Run in Washington County, Maryland. It was built in 1977, so it is 48 years old, younger 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 330 vehicles a day, roughly 5% of them trucks, projected to reach 568 by 2037. The structure is 51 ft (15.5 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesGossard Mill Road
CrossesRockdale Run
Location0.8 MI SE of Md 494
RouteCounty Highway 82
CountyWashington County
StateMaryland
Coordinates39.70033, -77.82989
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.4 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span45 ft (13.7 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic330 (2017)
Projected traffic568 by 2037
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Gossard Mill Road over Rockdale Run built?

It was built in 1977, making it 48 years old in 2025.

What condition is Gossard Mill Road over Rockdale Run 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 Gossard Mill Road over Rockdale Run carry?

About 330 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Gossard Mill Road over Rockdale Run?

The structure is 51 ft (15.5 m) long with a longest span of 45 ft (13.7 m) and a deck 25 ft wide.

Who owns Gossard Mill Road over Rockdale Run?

It is owned by the County Highway Agency.