US Bridges

Is 70 WB over Norfolk Southern RR

Fair

Washington County, Maryland · 0.35 Mile East of US 11 · Structure no. 100000210113014

Built
1965
60 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
120 ft
3 main spans
Daily traffic
34,890
2021 count
Owner
State
State Highway Agency

About this bridge

Is 70 WB over Norfolk Southern RR is a steel stringer/multi-beam or girder carrying Is 70 WB over Norfolk Southern RR 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 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 34,890 vehicles a day, roughly 8% of them trucks, projected to reach 61,180 by 2040. The structure is 120 ft (36.6 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIs 70 WB
CrossesNorfolk Southern RR
Location0.35 Mile East of US 11
RouteInterstate 70
CountyWashington County
StateMaryland
Coordinates39.60874, -77.77844
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.5 US tons
Inventory rating47.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span42 ft (12.8 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,890 (2021)
Projected traffic61,180 by 2040
Trucks8%
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 Norfolk Southern RR built?

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

What condition is Is 70 WB over Norfolk Southern RR 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 May 2023.

How much traffic does Is 70 WB over Norfolk Southern RR carry?

About 34,890 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Is 70 WB over Norfolk Southern RR?

The structure is 120 ft (36.6 m) long with a longest span of 42 ft (12.8 m) and a deck 42 ft wide.

Who owns Is 70 WB over Norfolk Southern RR?

It is owned by the State Highway Agency.