US Bridges

Md 459 over US 50

Fair

Prince George's County, Maryland · 0.42 Mile S of Md 973B · Structure no. 100000160117010

Built
1962
63 years old, rebuilt 2002
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
130 ft
2 main spans
Daily traffic
19,801
2018 count
Owner
State
State Highway Agency

About this bridge

Md 459 over US 50 is a steel stringer/multi-beam or girder carrying Md 459 over US 50 in Prince George's County, Maryland. It was built in 1962 and reconstructed in 2002, so it is 63 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 19,801 vehicles a day, roughly 5% of them trucks, projected to reach 19,877 by 2038. The structure is 130 ft (39.6 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMd 459
CrossesUS 50
Location0.42 Mile S of Md 973B
RouteState Highway 459
CountyPrince George's County
StateMaryland
Coordinates38.91765, -76.91548
Functional classUrban 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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.9 US tons
Inventory rating54.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span62 ft (18.9 m)
Deck width39 ft (11.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,801 (2018)
Projected traffic19,877 by 2038
Trucks5%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$363,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Md 459 over US 50 built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2002.

What condition is Md 459 over US 50 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 2024.

How much traffic does Md 459 over US 50 carry?

About 19,801 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Md 459 over US 50?

The structure is 130 ft (39.6 m) long with a longest span of 62 ft (18.9 m) and a deck 39 ft wide.

Who owns Md 459 over US 50?

It is owned by the State Highway Agency.