US Bridges

Is 70 EB over Is 81

Fair

Washington County, Maryland · 0.33 Mile West of US 11 · Structure no. 100000210073013

Built
1964
61 years old, rebuilt 1973
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
274 ft
6 main spans
Daily traffic
62,680
2009 count
Owner
State
State Highway Agency

About this bridge

Is 70 EB over Is 81 is a steel stringer/multi-beam or girder carrying Is 70 EB over Is 81 in Washington County, Maryland. It was built in 1964 and reconstructed in 1973, so it is 61 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 62,680 vehicles a day, roughly 8% of them trucks, projected to reach 57,660 by 2038. The structure is 274 ft (83.5 m) long and 35 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 EB
CrossesIs 81
Location0.33 Mile West of US 11
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.9 US tons
Inventory rating55 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length274 ft (83.5 m)
Longest span56 ft (17.1 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62,680 (2009)
Projected traffic57,660 by 2038
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$637,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 70 EB over Is 81 built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1973.

What condition is Is 70 EB over Is 81 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 August 2023.

How much traffic does Is 70 EB over Is 81 carry?

About 62,680 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Is 70 EB over Is 81?

The structure is 274 ft (83.5 m) long with a longest span of 56 ft (17.1 m) and a deck 35 ft wide.

Who owns Is 70 EB over Is 81?

It is owned by the State Highway Agency.