US Bridges

Rock Hall Road over Washington Run

Good

Frederick County, Maryland · 1200 Ft. S. of Route 28 · Structure no. 200000F-0108030

Built
1983
42 years old
Condition
Good
inspected April 2023
Type
Culvert
Steel
Length
29 ft
Daily traffic
202
2022 count
Owner
County
County Highway Agency

About this bridge

Rock Hall Road over Washington Run is a steel culvert carrying Rock Hall Road over Washington Run in Frederick County, Maryland. It was built in 1983, so it is 42 years old, younger 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 202 vehicles a day, roughly 7% of them trucks, projected to reach 250 by 2047. The structure is 29 ft (8.8 m) long and 28 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesRock Hall Road
CrossesWashington Run
Location1200 Ft. S. of Route 28
RouteCounty Highway 300
CountyFrederick County
StateMaryland
Coordinates39.27302, -77.52487
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating88.5 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans0
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span0 ft (0 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic202 (2022)
Projected traffic250 by 2047
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 Rock Hall Road over Washington Run built?

It was built in 1983, making it 42 years old in 2025.

What condition is Rock Hall Road over Washington Run 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 April 2023.

How much traffic does Rock Hall Road over Washington Run carry?

About 202 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Rock Hall Road over Washington Run?

The structure is 29 ft (8.8 m) long and a deck 28 ft wide.

Who owns Rock Hall Road over Washington Run?

It is owned by the County Highway Agency.