US Bridges

US 1 Alt over CSX Trans.

Good

Prince George's County, Maryland · 0.11 Mile South of US 1 · Structure no. 100000160006010

Built
1989
36 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
394 ft
4 main spans
Daily traffic
13,462
2009 count
Owner
State
State Highway Agency

About this bridge

US 1 Alt over CSX Trans. is a steel continuous stringer/multi-beam or girder carrying US 1 Alt over CSX Trans. in Prince George's County, Maryland. It was built in 1989, so it is 36 years old, younger than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 13,462 vehicles a day, roughly 8% of them trucks, projected to reach 16,271 by 2026. The structure is 394 ft (120.1 m) long and 50 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUS 1 Alt
CrossesCSX Trans.
Location0.11 Mile South of US 1
RouteU.S. Route 1
CountyPrince George's County
StateMaryland
Coordinates38.95193, -76.93976
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating97.4 US tons
Inventory rating58.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length394 ft (120.1 m)
Longest span119 ft (36.3 m)
Deck width50 ft (15.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,462 (2009)
Projected traffic16,271 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 1 Alt over CSX Trans. built?

It was built in 1989, making it 36 years old in 2025.

What condition is US 1 Alt over CSX Trans. in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does US 1 Alt over CSX Trans. carry?

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

How long is US 1 Alt over CSX Trans.?

The structure is 394 ft (120.1 m) long with a longest span of 119 ft (36.3 m) and a deck 50 ft wide.

Who owns US 1 Alt over CSX Trans.?

It is owned by the State Highway Agency.