US Bridges

Arrington Road over Piney Run

Good

Carroll County, Maryland · At Marriottsville Road · Structure no. 200000CL0331010

Built
1958
67 years old, rebuilt 1999
Condition
Good
inspected August 2023
Type
Slab
Prestressed Concrete
Length
49 ft
1 main span
Daily traffic
260
2021 count
Owner
County
County Highway Agency

About this bridge

Arrington Road over Piney Run is a prestressed concrete slab carrying Arrington Road over Piney Run in Carroll County, Maryland. It was built in 1958 and reconstructed in 1999, so it is 67 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 260 vehicles a day, roughly 8% of them trucks, projected to reach 430 by 2041. The structure is 49 ft (14.9 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesArrington Road
CrossesPiney Run
LocationAt Marriottsville Road
RouteCounty Highway 758
Coordinates39.3663, -76.9115
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 alignment6: Equal to present minimum criteria
Operating rating66.5 US tons
Inventory rating40 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length49 ft (14.9 m)
Longest span48 ft (14.6 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (2021)
Projected traffic430 by 2041
Trucks8%
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 Arrington Road over Piney Run built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1999.

What condition is Arrington Road over Piney 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 August 2023.

How much traffic does Arrington Road over Piney Run carry?

About 260 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Arrington Road over Piney Run?

The structure is 49 ft (14.9 m) long with a longest span of 48 ft (14.6 m) and a deck 28 ft wide.

Who owns Arrington Road over Piney Run?

It is owned by the County Highway Agency.