US Bridges

Md 84 over Roop Branch

Fair

Carroll County, Maryland · .29 Mile North of Md 800B · Structure no. 100000060017020

Built
1948
77 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
20 ft
Daily traffic
1,702
2009 count
Owner
State
State Highway Agency

About this bridge

Md 84 over Roop Branch is a concrete culvert carrying Md 84 over Roop Branch in Carroll County, Maryland. It was built in 1948, so it is 77 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 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 1,702 vehicles a day, roughly 8% of them trucks, projected to reach 2,112 by 2026. The structure is 20 ft (6.2 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMd 84
CrossesRoop Branch
Location.29 Mile North of Md 800B
RouteState Highway 84
CountyCarroll County
StateMaryland
Coordinates39.56125, -77.12181
Functional classRural Minor 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadH 20
Structure length20 ft (6.2 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,702 (2009)
Projected traffic2,112 by 2026
Trucks8%
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

OwnerState Highway Agency
Maintained byState 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 Md 84 over Roop Branch built?

It was built in 1948, making it 77 years old in 2025.

What condition is Md 84 over Roop Branch 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 March 2023.

How much traffic does Md 84 over Roop Branch carry?

About 1,702 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 84 over Roop Branch?

The structure is 20 ft (6.2 m) long with a longest span of 20 ft (6.1 m).

Who owns Md 84 over Roop Branch?

It is owned by the State Highway Agency.