US Bridges

Upper Potomac Indu over CSXT Railroad

Fair

Allegany County, Maryland · 0.08 MI E of US 220 · Structure no. 200000A-0119010

Built
1975
50 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
196 ft
3 main spans
Daily traffic
120
2023 count
Owner
County
County Highway Agency

About this bridge

Upper Potomac Indu over CSXT Railroad is a steel continuous stringer/multi-beam or girder carrying Upper Potomac Indu over CSXT Railroad in Allegany County, Maryland. It was built in 1975, so it is 50 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 5 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 120 vehicles a day, roughly 5% of them trucks, projected to reach 147 by 2043. The structure is 196 ft (59.7 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesUpper Potomac Indu
CrossesCSXT Railroad
Location0.08 MI E of US 220
RouteCounty Highway 304
CountyAllegany County
StateMaryland
Coordinates39.63576, -78.79881
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.5 US tons
Inventory rating55 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length196 ft (59.7 m)
Longest span73 ft (22.3 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2023)
Projected traffic147 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$8,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Upper Potomac Indu over CSXT Railroad built?

It was built in 1975, making it 50 years old in 2025.

What condition is Upper Potomac Indu over CSXT Railroad 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 December 2023.

How much traffic does Upper Potomac Indu over CSXT Railroad carry?

About 120 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Upper Potomac Indu over CSXT Railroad?

The structure is 196 ft (59.7 m) long with a longest span of 73 ft (22.3 m) and a deck 47 ft wide.

Who owns Upper Potomac Indu over CSXT Railroad?

It is owned by the County Highway Agency.