US Bridges

Is 70 EB over Md 27

Fair

Carroll County, Maryland · 0.03 MI E of Frederick CO · Structure no. 100000060011013

Built
1974
51 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
278 ft
4 main spans
Daily traffic
65,550
2009 count
Owner
State
State Highway Agency

About this bridge

Is 70 EB over Md 27 is a steel continuous stringer/multi-beam or girder carrying Is 70 EB over Md 27 in Carroll County, Maryland. It was built in 1974, so it is 51 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 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 65,550 vehicles a day, roughly 8% of them trucks, projected to reach 34,063 by 2026. The structure is 278 ft (84.7 m) long and 67 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIs 70 EB
CrossesMd 27
Location0.03 MI E of Frederick CO
RouteInterstate 70
Coordinates39.35911, -77.16701
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.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.9 US tons
Inventory rating54.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length278 ft (84.7 m)
Longest span85 ft (25.9 m)
Deck width67 ft (20.3 m)
Roadway width64 ft (19.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65,550 (2009)
Projected traffic34,063 by 2026
Trucks8%
Lanes on structure4
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 70 EB over Md 27 built?

It was built in 1974, making it 51 years old in 2025.

What condition is Is 70 EB over Md 27 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 Md 27 carry?

About 65,550 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Is 70 EB over Md 27?

The structure is 278 ft (84.7 m) long with a longest span of 85 ft (25.9 m) and a deck 67 ft wide.

Who owns Is 70 EB over Md 27?

It is owned by the State Highway Agency.