US Bridges

Is 70 EB over Gr Tonoloway Ck CO Rds

Fair

Washington County, Maryland · 0.67 Mile W of Md 144WB · Structure no. 100000210092013

Built
1965
60 years old, rebuilt 2004
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
408 ft
3 main spans
Daily traffic
19,611
2017 count
Owner
State
State Highway Agency

About this bridge

Is 70 EB over Gr Tonoloway Ck CO Rds is a steel continuous stringer/multi-beam or girder carrying Is 70 EB over Gr Tonoloway Ck CO Rds in Washington County, Maryland. It was built in 1965 and reconstructed in 2004, 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 19,611 vehicles a day, roughly 26% of them trucks, projected to reach 29,141 by 2037. The structure is 408 ft (124.4 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIs 70 EB
CrossesGr Tonoloway Ck CO Rds
Location0.67 Mile W of Md 144WB
RouteInterstate 70
Coordinates39.69912, -78.15492
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.5 US tons
Inventory rating29 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length408 ft (124.4 m)
Longest span155 ft (47.2 m)
Deck width55 ft (16.8 m)
Roadway width51 ft (15.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,611 (2017)
Projected traffic29,141 by 2037
Trucks26%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Is 70 EB over Gr Tonoloway Ck CO Rds built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2004.

What condition is Is 70 EB over Gr Tonoloway Ck CO Rds 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 July 2024.

How much traffic does Is 70 EB over Gr Tonoloway Ck CO Rds carry?

About 19,611 vehicles per day (2017 count), of which roughly 26% are trucks.

How long is Is 70 EB over Gr Tonoloway Ck CO Rds?

The structure is 408 ft (124.4 m) long with a longest span of 155 ft (47.2 m) and a deck 55 ft wide.

Who owns Is 70 EB over Gr Tonoloway Ck CO Rds?

It is owned by the State Highway Agency.