US Bridges

Md 650 over Northwest Branch

Fair

Prince George's County, Maryland · 0.05 Mile South of Md 320 · Structure no. 100000160079010

Built
1939
86 years old, rebuilt 1955
Condition
Fair
inspected May 2024
Type
Arch - Deck
Concrete
Length
62 ft
1 main span
Daily traffic
40,653
2022 count
Owner
State
State Highway Agency

About this bridge

Md 650 over Northwest Branch is a concrete arch - deck carrying Md 650 over Northwest Branch in Prince George's County, Maryland. It was built in 1939 and reconstructed in 1955, so it is 86 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 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 40,653 vehicles a day, roughly 8% of them trucks, projected to reach 49,604 by 2042. The structure is 62 ft (18.9 m) long and 128 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

No coordinates are recorded for this structure.

CarriesMd 650
CrossesNorthwest Branch
Location0.05 Mile South of Md 320
RouteState Highway 650
Functional classUrban Other Principal 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating86.5 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckOther
Main spans1
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span50 ft (15.2 m)
Deck width128 ft (38.9 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,653 (2022)
Projected traffic49,604 by 2042
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 650 over Northwest Branch built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1955.

What condition is Md 650 over Northwest 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 May 2024.

How much traffic does Md 650 over Northwest Branch carry?

About 40,653 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Md 650 over Northwest Branch?

The structure is 62 ft (18.9 m) long with a longest span of 50 ft (15.2 m) and a deck 128 ft wide.

Who owns Md 650 over Northwest Branch?

It is owned by the State Highway Agency.