US Bridges

Md 482 over East Branch Patapsco Riv

Fair

Carroll County, Maryland · 0.80 MI W of Hampstead · Structure no. 100000060036010

Built
1936
89 years old, rebuilt 1981
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
34 ft
1 main span
Daily traffic
8,212
2009 count
Owner
State
State Highway Agency

About this bridge

Md 482 over East Branch Patapsco Riv is a steel stringer/multi-beam or girder carrying Md 482 over East Branch Patapsco Riv in Carroll County, Maryland. It was built in 1936 and reconstructed in 1981, so it is 89 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 5 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 8,212 vehicles a day, roughly 8% of them trucks, projected to reach 9,422 by 2026. The structure is 34 ft (10.4 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMd 482
CrossesEast Branch Patapsco Riv
Location0.80 MI W of Hampstead
RouteState Highway 482
Coordinates39.60972, -76.88137
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating34.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width33 ft (10.2 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,212 (2009)
Projected traffic9,422 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$76,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 482 over East Branch Patapsco Riv built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1981.

What condition is Md 482 over East 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 482 over East Branch Patapsco Riv carry?

About 8,212 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 482 over East Branch Patapsco Riv?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 33 ft wide.

Who owns Md 482 over East Branch Patapsco Riv?

It is owned by the State Highway Agency.