US Bridges

Patapsco Road over East Br Patapsco River

Poor

Carroll County, Maryland · 0.55 MI W of Wesley Road · Structure no. 200000CL0351010

Built
1900
125 years old, rebuilt 1981
Condition
Poor
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
171
2021 count
Owner
County
County Highway Agency

About this bridge

Patapsco Road over East Br Patapsco River is a steel stringer/multi-beam or girder carrying Patapsco Road over East Br Patapsco River in Carroll County, Maryland. It was built in 1900 and reconstructed in 1981, so it is 125 years old, older than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 171 vehicles a day, roughly 8% of them trucks, projected to reach 290 by 2041. The structure is 40 ft (12.3 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesPatapsco Road
CrossesEast Br Patapsco River
Location0.55 MI W of Wesley Road
RouteCounty Highway 465
Coordinates39.54384, -76.88694
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53 US tons
Inventory rating31.5 US tons

Structure

MaterialSteel
DeckClosed grating
Main spans1
Design loadH 20
Structure length40 ft (12.3 m)
Longest span36 ft (11 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic171 (2021)
Projected traffic290 by 2041
Trucks8%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Patapsco Road over East Br Patapsco River built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1981.

What condition is Patapsco Road over East Br Patapsco River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does Patapsco Road over East Br Patapsco River carry?

About 171 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Patapsco Road over East Br Patapsco River?

The structure is 40 ft (12.3 m) long with a longest span of 36 ft (11 m) and a deck 22 ft wide.

Who owns Patapsco Road over East Br Patapsco River?

It is owned by the County Highway Agency.