US Bridges

Carrollton Road over West Branch Patapsco Riv

Good

Carroll County, Maryland · 0.09 MI W of Dutrow Road · Structure no. 200000CL0357010

Built
1978
47 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
166 ft
3 main spans
Daily traffic
1,697
2021 count
Owner
County
County Highway Agency

About this bridge

Carrollton Road over West Branch Patapsco Riv is a steel continuous stringer/multi-beam or girder carrying Carrollton Road over West Branch Patapsco Riv in Carroll County, Maryland. It was built in 1978, so it is 47 years old, younger 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 1,697 vehicles a day, roughly 5% of them trucks, projected to reach 2,790 by 2041. The structure is 166 ft (50.7 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCarrollton Road
CrossesWest Branch Patapsco Riv
Location0.09 MI W of Dutrow Road
RouteCounty Highway 459
CountyCarroll County
StateMaryland
Coordinates39.55678, -76.91792
Functional classRural 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating69 US tons
Inventory rating41.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length166 ft (50.7 m)
Longest span62 ft (18.9 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,697 (2021)
Projected traffic2,790 by 2041
Trucks5%
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

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 Carrollton Road over West Branch Patapsco Riv built?

It was built in 1978, making it 47 years old in 2025.

What condition is Carrollton Road over West Branch Patapsco Riv 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 July 2023.

How much traffic does Carrollton Road over West Branch Patapsco Riv carry?

About 1,697 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Carrollton Road over West Branch Patapsco Riv?

The structure is 166 ft (50.7 m) long with a longest span of 62 ft (18.9 m) and a deck 35 ft wide.

Who owns Carrollton Road over West Branch Patapsco Riv?

It is owned by the County Highway Agency.