US Bridges

Is 70 WB over CSX Trans.

Fair

Washington County, Maryland · 0.53 Mile West of Is 81 · Structure no. 100000210110014

Built
1965
60 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
156 ft
3 main spans
Daily traffic
24,316
2024 count
Owner
State
State Highway Agency

About this bridge

Is 70 WB over CSX Trans. is a steel stringer/multi-beam or girder carrying Is 70 WB over CSX Trans. in Washington County, Maryland. It was built in 1965, so it is 60 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 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 24,316 vehicles a day, roughly 26% of them trucks, projected to reach 29,670 by 2044. The structure is 156 ft (47.5 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

No coordinates are recorded for this structure.

CarriesIs 70 WB
CrossesCSX Trans.
Location0.53 Mile West of Is 81
RouteInterstate 70
CountyWashington County
StateMaryland
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating62.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length156 ft (47.5 m)
Longest span71 ft (21.6 m)
Deck width43 ft (13 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,316 (2024)
Projected traffic29,670 by 2044
Trucks26%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 Is 70 WB over CSX Trans. built?

It was built in 1965, making it 60 years old in 2025.

What condition is Is 70 WB over CSX Trans. 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 March 2024.

How much traffic does Is 70 WB over CSX Trans. carry?

About 24,316 vehicles per day (2024 count), of which roughly 26% are trucks.

How long is Is 70 WB over CSX Trans.?

The structure is 156 ft (47.5 m) long with a longest span of 71 ft (21.6 m) and a deck 43 ft wide.

Who owns Is 70 WB over CSX Trans.?

It is owned by the State Highway Agency.