US Bridges

Md 300 over Andover Branch

Fair

Queen Anne's County, Maryland · 1.44 M W of Delaware Line · Structure no. 100000170027010

Built
1995
30 years old
Condition
Fair
inspected February 2025
Type
Slab
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
2,461
2018 count
Owner
State
State Highway Agency

About this bridge

Md 300 over Andover Branch is a prestressed concrete slab carrying Md 300 over Andover Branch in Queen Anne's County, Maryland. It was built in 1995, so it is 30 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 2,461 vehicles a day, roughly 9% of them trucks, projected to reach 2,469 by 2038. The structure is 46 ft (14 m) long and 40 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesMd 300
CrossesAndover Branch
Location1.44 M W of Delaware Line
RouteState Highway 300
CountyQueen Anne's County
StateMaryland
Coordinates39.19153, -75.77359
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
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 alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating81 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length46 ft (14 m)
Longest span43 ft (13.1 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,461 (2018)
Projected traffic2,469 by 2038
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 300 over Andover Branch built?

It was built in 1995, making it 30 years old in 2025.

What condition is Md 300 over Andover Branch 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 February 2025.

How much traffic does Md 300 over Andover Branch carry?

About 2,461 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is Md 300 over Andover Branch?

The structure is 46 ft (14 m) long with a longest span of 43 ft (13.1 m) and a deck 40 ft wide.

Who owns Md 300 over Andover Branch?

It is owned by the State Highway Agency.