US Bridges

Md 27 over West Branch Patapsco Riv

Fair

Carroll County, Maryland · .04 Mile South of Md 852G · Structure no. 100000060052020

Built
1959
66 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
25 ft
Daily traffic
18,790
2018 count
Owner
State
State Highway Agency

About this bridge

Md 27 over West Branch Patapsco Riv is a concrete culvert carrying Md 27 over West Branch Patapsco Riv in Carroll County, Maryland. It was built in 1959, so it is 66 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 18,790 vehicles a day, roughly 8% of them trucks, projected to reach 18,790 by 2038. The structure is 25 ft (7.7 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMd 27
CrossesWest Branch Patapsco Riv
Location.04 Mile South of Md 852G
RouteState Highway 27
CountyCarroll County
StateMaryland
Coordinates39.58616, -76.97604
Functional classUrban Other Principal Arterial

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 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadHS 20
Structure length25 ft (7.7 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,790 (2018)
Projected traffic18,790 by 2038
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 27 over West Branch Patapsco Riv built?

It was built in 1959, making it 66 years old in 2025.

What condition is Md 27 over West Branch Patapsco Riv 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 27 over West Branch Patapsco Riv carry?

About 18,790 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is Md 27 over West Branch Patapsco Riv?

The structure is 25 ft (7.7 m) long with a longest span of 12 ft (3.7 m).

Who owns Md 27 over West Branch Patapsco Riv?

It is owned by the State Highway Agency.