US Bridges

Md 363 over Upper Thorofare

Fair

Somerset County, Maryland · 0.36 Mile E of Hotel RD · Structure no. 100000190006010

Built
1987
38 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
1,496 ft
15 main spans
Daily traffic
1,653
2024 count
Owner
State
State Highway Agency

About this bridge

Md 363 over Upper Thorofare is a prestressed concrete continuous stringer/multi-beam or girder carrying Md 363 over Upper Thorofare in Somerset County, Maryland. It was built in 1987, so it is 38 years old, younger 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 1,653 vehicles a day, roughly 8% of them trucks, projected to reach 2,226 by 2044. The structure is 1,496 ft (456 m) long and 31 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesMd 363
CrossesUpper Thorofare
Location0.36 Mile E of Hotel RD
RouteState Highway 363
CountySomerset County
StateMaryland
Coordinates38.16651, -75.94577
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating70 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans15
Design loadHS 20
Structure length1,496 ft (456 m)
Longest span100 ft (30.5 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,653 (2024)
Projected traffic2,226 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 363 over Upper Thorofare built?

It was built in 1987, making it 38 years old in 2025.

What condition is Md 363 over Upper Thorofare 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 July 2024.

How much traffic does Md 363 over Upper Thorofare carry?

About 1,653 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Md 363 over Upper Thorofare?

The structure is 1,496 ft (456 m) long with a longest span of 100 ft (30.5 m) and a deck 31 ft wide.

Who owns Md 363 over Upper Thorofare?

It is owned by the State Highway Agency.