US Bridges

Slabtown Road over Unnamed Stream

FairPosted for load

Allegany County, Maryland · 0.40 MI NE of Md 36 · Structure no. 200000A-0054030

Built
1991
34 years old
Condition
Fair
inspected September 2024
Type
Culvert
Steel
Length
21 ft
1 main span
Daily traffic
258
2019 count
Owner
County
County Highway Agency

About this bridge

Slabtown Road over Unnamed Stream is a steel culvert carrying Slabtown Road over Unnamed Stream in Allegany County, Maryland. It was built in 1991, so it is 34 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. Its operating status is: posted for load restriction.

It carries about 258 vehicles a day, roughly 5% of them trucks, projected to reach 265 by 2039. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSlabtown Road
CrossesUnnamed Stream
Location0.40 MI NE of Md 36
RouteCounty Highway 185
CountyAllegany County
StateMaryland
Coordinates39.62215, -78.88711
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating29 US tons
Inventory rating17.5 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic258 (2019)
Projected traffic265 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$19,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Slabtown Road over Unnamed Stream built?

It was built in 1991, making it 34 years old in 2025.

What condition is Slabtown Road over Unnamed Stream 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 September 2024.

How much traffic does Slabtown Road over Unnamed Stream carry?

About 258 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Slabtown Road over Unnamed Stream?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m).

Who owns Slabtown Road over Unnamed Stream?

It is owned by the County Highway Agency.