US Bridges

Hammershire Road over Roaches Run

Fair

Baltimore County, Maryland · Hammershire RD 0.11 · Structure no. 200000B-0372020

Built
1984
41 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
104 ft
Daily traffic
6,330
2023 count
Owner
County
County Highway Agency

About this bridge

Hammershire Road over Roaches Run is a concrete culvert carrying Hammershire Road over Roaches Run in Baltimore County, Maryland. It was built in 1984, so it is 41 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.

It carries about 6,330 vehicles a day, roughly 5% of them trucks, projected to reach 7,720 by 2043. The structure is 104 ft (31.7 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesHammershire Road
CrossesRoaches Run
LocationHammershire RD 0.11
RouteCounty Highway 602
CountyBaltimore County
StateMaryland
Coordinates39.4436, -76.8068
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95 US tons
Inventory rating57 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans0
Design loadHS 20
Structure length104 ft (31.7 m)
Longest span16 ft (4.9 m)
Deck width60 ft (18.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,330 (2023)
Projected traffic7,720 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Hammershire Road over Roaches Run built?

It was built in 1984, making it 41 years old in 2025.

What condition is Hammershire Road over Roaches 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 April 2023.

How much traffic does Hammershire Road over Roaches Run carry?

About 6,330 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Hammershire Road over Roaches Run?

The structure is 104 ft (31.7 m) long with a longest span of 16 ft (4.9 m) and a deck 60 ft wide.

Who owns Hammershire Road over Roaches Run?

It is owned by the County Highway Agency.