US Bridges

US 1 Alt SB over Northeast Branch

Fair

Prince George's County, Maryland · 0.45 Mile North of Md 450 · Structure no. 100000160007012

Built
1955
70 years old, rebuilt 1998
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
305 ft
3 main spans
Daily traffic
13,462
2009 count
Owner
State
State Highway Agency

About this bridge

US 1 Alt SB over Northeast Branch is a steel continuous stringer/multi-beam or girder carrying US 1 Alt SB over Northeast Branch in Prince George's County, Maryland. It was built in 1955 and reconstructed in 1998, so it is 70 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 13,462 vehicles a day, roughly 8% of them trucks, projected to reach 8,136 by 2026. The structure is 305 ft (93 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 1 Alt SB
CrossesNortheast Branch
Location0.45 Mile North of Md 450
RouteU.S. Route 1
CountyPrince George's County
StateMaryland
Coordinates38.94537, -76.94137
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.5 US tons
Inventory rating52 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length305 ft (93 m)
Longest span115 ft (35.1 m)
Deck width39 ft (11.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,462 (2009)
Projected traffic8,136 by 2026
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$785,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 1 Alt SB over Northeast Branch built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1998.

What condition is US 1 Alt SB over Northeast 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 September 2023.

How much traffic does US 1 Alt SB over Northeast Branch carry?

About 13,462 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is US 1 Alt SB over Northeast Branch?

The structure is 305 ft (93 m) long with a longest span of 115 ft (35.1 m) and a deck 39 ft wide.

Who owns US 1 Alt SB over Northeast Branch?

It is owned by the State Highway Agency.