US Bridges

Is 70 Wbr over Ramps C & G

Fair

Baltimore County, Maryland · 0.54 M E of Rolling Road · Structure no. 100000030127014

Built
1966
59 years old, rebuilt 1973
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
431 ft
8 main spans
Daily traffic
25,300
2009 count
Owner
State
State Highway Agency

About this bridge

Is 70 Wbr over Ramps C & G is a steel stringer/multi-beam or girder carrying Is 70 Wbr over Ramps C & G in Baltimore County, Maryland. It was built in 1966 and reconstructed in 1973, so it is 59 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 25,300 vehicles a day, roughly 8% of them trucks, projected to reach 31,180 by 2029. The structure is 431 ft (131.4 m) long and 50 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 Wbr
CrossesRamps C & G
Location0.54 M E of Rolling Road
RouteInterstate 70
CountyBaltimore 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length431 ft (131.4 m)
Longest span61 ft (18.6 m)
Deck width50 ft (15.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,300 (2009)
Projected traffic31,180 by 2029
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$1.4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 70 Wbr over Ramps C & G built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1973.

What condition is Is 70 Wbr over Ramps C & G 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 Wbr over Ramps C & G carry?

About 25,300 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Is 70 Wbr over Ramps C & G?

The structure is 431 ft (131.4 m) long with a longest span of 61 ft (18.6 m) and a deck 50 ft wide.

Who owns Is 70 Wbr over Ramps C & G?

It is owned by the State Highway Agency.