US Bridges

Md 501 over Br of Northwest Branch

Fair

Prince George's County, Maryland · 0.82 Mile East of Md 212 · Structure no. 100000160074020

Built
1968
57 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
61 ft
Daily traffic
13,360
2009 count
Owner
State
State Highway Agency

About this bridge

Md 501 over Br of Northwest Branch is a concrete culvert carrying Md 501 over Br of Northwest Branch in Prince George's County, Maryland. It was built in 1968, so it is 57 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 13,360 vehicles a day, roughly 8% of them trucks, projected to reach 15,024 by 2026. The structure is 61 ft (18.6 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMd 501
CrossesBr of Northwest Branch
Location0.82 Mile East of Md 212
RouteState Highway 501
Coordinates38.95567, -76.98169
Functional classUrban 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating31.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans0
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span17 ft (5.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,360 (2009)
Projected traffic15,024 by 2026
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 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 501 over Br of Northwest Branch built?

It was built in 1968, making it 57 years old in 2025.

What condition is Md 501 over Br of 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 January 2025.

How much traffic does Md 501 over Br of Northwest Branch carry?

About 13,360 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 501 over Br of Northwest Branch?

The structure is 61 ft (18.6 m) long with a longest span of 17 ft (5.2 m).

Who owns Md 501 over Br of Northwest Branch?

It is owned by the State Highway Agency.