US Bridges

Is 70 EB over Md 32

Fair

Howard County, Maryland · 2.12 Miles West of US 40 · Structure no. 100000130031013

Built
1973
52 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
237 ft
2 main spans
Daily traffic
85,270
2009 count
Owner
State
State Highway Agency

About this bridge

Is 70 EB over Md 32 is a steel stringer/multi-beam or girder carrying Is 70 EB over Md 32 in Howard County, Maryland. It was built in 1973, so it is 52 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 85,270 vehicles a day, roughly 8% of them trucks, projected to reach 112,212 by 2029. The structure is 237 ft (72.2 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIs 70 EB
CrossesMd 32
Location2.12 Miles West of US 40
RouteInterstate 70
Coordinates39.30879, -76.9529
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.5 US tons
Inventory rating49.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length237 ft (72.2 m)
Longest span116 ft (35.4 m)
Deck width57 ft (17.3 m)
Roadway width53 ft (16.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic85,270 (2009)
Projected traffic112,212 by 2029
Trucks8%
Lanes on structure3
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 32 built?

It was built in 1973, making it 52 years old in 2025.

What condition is Is 70 EB over Md 32 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 June 2023.

How much traffic does Is 70 EB over Md 32 carry?

About 85,270 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Is 70 EB over Md 32?

The structure is 237 ft (72.2 m) long with a longest span of 116 ft (35.4 m) and a deck 57 ft wide.

Who owns Is 70 EB over Md 32?

It is owned by the State Highway Agency.