US Bridges

Slacks Road over Piney Run

Fair

Carroll County, Maryland · 0.80 MI N Raincliffe Road · Structure no. 200000CL0328010

Built
1975
50 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
75 ft
1 main span
Daily traffic
905
2021 count
Owner
County
County Highway Agency

About this bridge

Slacks Road over Piney Run is a steel stringer/multi-beam or girder carrying Slacks Road over Piney Run in Carroll County, Maryland. It was built in 1975, so it is 50 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 905 vehicles a day, roughly 5% of them trucks, projected to reach 1,490 by 2041. The structure is 75 ft (22.9 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSlacks Road
CrossesPiney Run
Location0.80 MI N Raincliffe Road
RouteCounty Highway 755
CountyCarroll County
StateMaryland
Coordinates39.3807, -76.9442
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating62.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length75 ft (22.9 m)
Longest span72 ft (21.9 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic905 (2021)
Projected traffic1,490 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Slacks Road over Piney Run built?

It was built in 1975, making it 50 years old in 2025.

What condition is Slacks Road over 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 July 2023.

How much traffic does Slacks Road over Piney Run carry?

About 905 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Slacks Road over Piney Run?

The structure is 75 ft (22.9 m) long with a longest span of 72 ft (21.9 m) and a deck 27 ft wide.

Who owns Slacks Road over Piney Run?

It is owned by the County Highway Agency.