US Bridges

Dark Hollow Road over Little Piney Run

FairPosted for load

Baltimore County, Maryland · 1.2 MI N of Dover Road · Structure no. 200000B-0067010

Built
1925
100 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Concrete
Length
24 ft
1 main span
Daily traffic
382
2020 count
Owner
County
County Highway Agency

About this bridge

Dark Hollow Road over Little Piney Run is a concrete tee beam carrying Dark Hollow Road over Little Piney Run in Baltimore County, Maryland. It was built in 1925, so it is 100 years old, older 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 5 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 382 vehicles a day, roughly 5% of them trucks, projected to reach 1,271 by 2040. The structure is 24 ft (7.3 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesDark Hollow Road
CrossesLittle Piney Run
Location1.2 MI N of Dover Road
RouteCounty Highway 167
CountyBaltimore County
StateMaryland
Coordinates39.56684, -76.81536
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60.5 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span21 ft (6.4 m)
Deck width22 ft (6.6 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic382 (2020)
Projected traffic1,271 by 2040
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 statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Dark Hollow Road over Little Piney Run built?

It was built in 1925, making it 100 years old in 2025.

What condition is Dark Hollow Road over Little Piney 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 May 2023.

How much traffic does Dark Hollow Road over Little Piney Run carry?

About 382 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Dark Hollow Road over Little Piney Run?

The structure is 24 ft (7.3 m) long with a longest span of 21 ft (6.4 m) and a deck 22 ft wide.

Who owns Dark Hollow Road over Little Piney Run?

It is owned by the County Highway Agency.