US Bridges

US 1 over Ammendale Branch

Fair

Prince George's County, Maryland · 154 S of Ammendale Road · Structure no. 100000160263010

Built
2016
9 years old
Condition
Fair
inspected January 2025
Type
Slab
Prestressed Concrete
Length
39 ft
1 main span
Daily traffic
32,400
2011 count
Owner
State
State Highway Agency

About this bridge

US 1 over Ammendale Branch is a prestressed concrete slab carrying US 1 over Ammendale Branch in Prince George's County, Maryland. It was built in 2016, so it is 9 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 32,400 vehicles a day, roughly 7% of them trucks, projected to reach 48,525 by 2031. The structure is 39 ft (11.9 m) long and 95 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUS 1
CrossesAmmendale Branch
Location154 S of Ammendale Road
RouteU.S. Route 1
CountyPrince George's County
StateMaryland
Coordinates39.05039, -76.89751
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 rating62.8 US tons
Inventory rating48.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length39 ft (11.9 m)
Longest span35 ft (10.7 m)
Deck width95 ft (29 m)
Roadway width79 ft (24.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,400 (2011)
Projected traffic48,525 by 2031
Trucks7%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 US 1 over Ammendale Branch built?

It was built in 2016, making it 9 years old in 2025.

What condition is US 1 over Ammendale 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 US 1 over Ammendale Branch carry?

About 32,400 vehicles per day (2011 count), of which roughly 7% are trucks.

How long is US 1 over Ammendale Branch?

The structure is 39 ft (11.9 m) long with a longest span of 35 ft (10.7 m) and a deck 95 ft wide.

Who owns US 1 over Ammendale Branch?

It is owned by the State Highway Agency.