US Bridges

Md 18B over US 50/301

Fair

Queen Anne's County, Maryland · 0.36 Mile East of Md 18A · Structure no. 100000170047010

Built
1989
36 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
372 ft
2 main spans
Daily traffic
2,442
2009 count
Owner
State
State Highway Agency

About this bridge

Md 18B over US 50/301 is a steel continuous stringer/multi-beam or girder carrying Md 18B over US 50/301 in Queen Anne's County, Maryland. It was built in 1989, so it is 36 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 2,442 vehicles a day, roughly 8% of them trucks, projected to reach 2,886 by 2026. The structure is 372 ft (113.4 m) long and 44 ft wide.

Location

Open in Google Maps
CarriesMd 18B
CrossesUS 50/301
Location0.36 Mile East of Md 18A
RouteState Highway 18B
CountyQueen Anne's County
StateMaryland
Coordinates38.97536, -76.28359
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.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating67 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length372 ft (113.4 m)
Longest span182 ft (55.5 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,442 (2009)
Projected traffic2,886 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Md 18B over US 50/301 built?

It was built in 1989, making it 36 years old in 2025.

What condition is Md 18B over US 50/301 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 September 2024.

How much traffic does Md 18B over US 50/301 carry?

About 2,442 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 18B over US 50/301?

The structure is 372 ft (113.4 m) long with a longest span of 182 ft (55.5 m) and a deck 44 ft wide.

Who owns Md 18B over US 50/301?

It is owned by the State Highway Agency.